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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
531

Identificação de tendências evolutivas de marcadores de replicação viral e do status imunológico de pacientes vivendo com HIV: impacto da terapia anti-retroviral inicial sobre a resposta ao tratamento / Identifying trends in viral replication and immune status markers among patients living with HIV: impact of the initial antiretroviral therapeutic regimen on response to treatment

Courtouké, Claudia de Lello 08 May 2008 (has links)
INTRODUÇÃO: Na história natural da infecção por HIV, um período longo de aproximadamente dez anos precede o desenvolvimento da doença. No entanto, a interação vírus-hospedeiro é caracterizada por um evento dinâmico e não estático. Os modelos matemáticos foram cruciais para revelar o conceito de latência viral, visto que a replicação viral intensa e persistente foi demonstrada através da fase assintomática. Uma contribuição importante demonstrou que a maioria das células que produzia vírus tornava-se infectada em poucos dias. Nosso estudo visa avaliar indivíduos infectados por HIV, investigando o impacto dos esquemas anti-retrovirais iniciais recebidos por eles (monoterapia versus bibiterapia versus HAART) no curso da doença. MÉTODOS: Usamos um banco de dados com 1391 pacientes, atendidos em serviço de referência em São Paulo, com pelo menos seis mensurações consecutivas de carga viral. Utilizamos o modelo linear aplicado à carga viral no plasma e ao número de células CD4+ em sangue periférico para classificar os desfechos em favoráveis ou desfavoráveis. Validamos a escolha da aproximação linear de acordo com dois critérios baseados na estatística c2 e em ( ) 2 2 Q . A associação de cada um desses desfechos e o esquema anti-retroviral inicial prescrito foi avaliada após a análise dos coeficientes angulares da reta de regressão para a carga viral e para o número de células T CD4+. RESULTADOS: Para a maioria dos pacientes com carga viral não-detectável durante o seguimento, nenhum esquema anti-retroviral inicial foi capaz de modificar o desfecho. Os resultados indicam efeito benéfico dos esquemas anti-retrovirais para apenas 20% dos pacientes com viremia persistente. Desfechos desfavoráveis foram associados à maioria dos pacientes com recuperação de viremia tanto de forma transiente ou como no final do seguimento. Para a maioria dos pacientes com viremia intermitente, mas com regularidade no final do seguimento: ou não-detectável ou detectável, os resultados mostram, respectivamente, desfechos favorável e desfavorável, independentemente do primeiro esquema anti-retroviral prescrito. Desfechos distintos foram apresentados por pacientes com carga viral oscilatória, ora detectável ora não-detectável, destacando-se que para a maioria dos pacientes que iniciou o tratamento com duas ou três drogas o desfecho foi favorável, ao passo que aquela que iniciou com uma única droga, exibiu desfecho desfavorável. CONCLUSÕES: As ferramentas da Matemática demonstraram, com sucesso, que o esquema anti-retroviral prescrito inicialmente não está associado à resposta ao tratamento para a maioria dos pacientes analisados. Os desfechos favoráveis podem estar associados a intervenções médicas envolvendo reforço da adesão ou mesmo troca de esquemas terapêuticos durante o seguimento. O aparecimento de linhagens resistentes à terapia antiretroviral e a seleção positiva dessas linhagens pode ser uma explicação para os desfechos desfavoráveis obtidos / In the natural history of HIV infection, a ten-year long asymptomatic period precedes disease development. However, viral-host interaction is a dynamic rather than a static event. Mathematical models have been crucial to rule out the concept of viral latency, since persistent and intense viral replication was demonstrated throughout the asymptomatic phase. One important contribution revealed that most plasma viral producing cells had become infected few days before. The present study aims at evaluating such an interaction in HIV infection, investigating the impact of initial antiretroviral regimens (mono therapy vs. double therapy vs. highly active antiretroviral therapy - HAART) in the course of disease. Using an available database with at least six sequential CD4+ cell counts and HIV viral load assessments of 1391 patients under clinical follow-up at a reference care centre in São Paulo, we classified patients according to a linear approximation model of plasma viral loads and peripheral blood CD4+ cell counts into favourable and unfavourable outcomes. We validated the linear approach according to two criteria, based on c2 and ( ) 2 2 Q . Association between each of these outcomes and the initial prescribed antiretroviral regimen was sought after analyzing the viral load and CD4+ cell counts slopes from the linear model. No particular initial regimen was shown associated with plasma viral undetectability during follow-up. The results point out for a beneficial effect of ART regimens for only 20% patients with persistent vireamia. Unfavourable outcomes were associated with most patients who resumed vireamia transiently or at the end of follow-up. For most patients with intermittent vireamia ending with an undetectable or a detectable viral load, the results indicate favourable and unfavourable outcomes, respectively, regardless of the initial prescribed antiretroviral regimen. Distinct outcomes occurred among patients with oscillatory viral loads, standing out the fact that for most patients who were started on therapy with two or three drugs had a favourable outcome. In contrast, most of those who were started on antiretroviral monotherapy had an unfavourable outcome. Mathematical tools have successfully demonstrated that the initially prescribed ART regimen was not associated with the long-term response to therapy for most analysed patients. Favourable outcomes can be associated to medical interventions including reinforcement of adherence or even changes in therapeutic regimens during follow-up. Emergence and positive selection of ART-resistant viral strains might be hypothesized as implicated in unfavourable outcomes
532

Controle interno da qualidade dos exames citológicos do colo do útero: pré-escrutínio rápido versus revisão rápida de 100% / Internal quality control of the cervical cytologic exams:Rapid prescreenig versus 100% rapid review

TAVARES, Suelene Brito do Nascimento 29 September 2011 (has links)
Made available in DSpace on 2014-07-29T15:25:16Z (GMT). No. of bitstreams: 1 Suelene Brito do Nascimento.pdf: 777082 bytes, checksum: f9660425f3055477271c6efbe8608c9e (MD5) Previous issue date: 2011-09-29 / False-negative rates constitute a common problem in the daily routine of cytopathology laboratories. Among the various internal quality control methods, 10% random review is the least effective in detecting false-negative results in routine screening. On the other hand, good results have been found with 100% rapid review and with rapid prescreening. Nevertheless, no studies comparing these two methods have been reported. Objective: To compare the performance of rapid prescreening and 100% rapid review as internal quality control methods in cervical cytopathology. Methods: Over 27 months, 12,208 cervical cytology smears collected from Units of Primary Health Care of Goiânia were submitted to rapid prescreening and routine screening at Rômulo Rocha Center for Clinical Analyses at the School of Pharmacy, Federal University of Goiás, Goiânia, Goiás, Brazil. The 100% rapid review method was performed on all smears classified as negative at routine screening. Conflicting results obtained with either method were reviewed in detail to define final diagnosis, which was considered the gold-standard for evaluating the performance of rapid prescreening and 100% rapid review. In cases with abnormal cytology were evaluated the results of colposcopy, histopathology and of the new cytopathology. The sensitivity and specificity of internal quality control methods were estimated when compared to the final diagnosis, and to follow-up colposcopy, histopathology and at new cytopathology. Results: Compared to the final diagnosis, the sensitivity of routine screening and rapid prescreening was 72.9% (IC 95%: 70,0%-75,8%) and 75.6% (IC 95%: 72,8%-78,4%), respectively. Taking into account only those smears classified as negative at routine screening, the sensitivity of rapid prescreening and RR-100% was 90.2% (IC 95%: 86,4-93,9) and 57.0% (50,8%-63,2%), respectively. Rapid prescreening identified 220 (1.8%), while RR-100% identified 140 (1.15%) of the 244 (2.0%) cases with false-negative results at routine screening. The sensitivity of rapid prescreening in detect abnormal cases at follow-up colposcopy, histopathology and at new cytopathology was 87.5% (CI95%; 74.3%-100.7%) 82,4% (CI95%: 64.2%-100.,5%), 95.7% (CI95%:89.8%-101.5%), respectively, the sensitivity of 100% rapid review was 54.2% (CI95%: 34.2%-74.1%), 52.9% (CI95%: 29.2%-76.7%), 47.8% (CI95%: 33.4%-62.3%) respectively and the sensibility of routine screening was 83.2% (CI95%: 77.1%-89.3%), 85.7% (CI95%: 79.4%-92.0%), 73.3% (CI95%: 66.6%-79.9%), respectively. Conclusions: Rapid prescreening was more effective than 100% rapid review for the detection of false-negative results at routine screening, with a better performance when compared to final diagnosis, to follow-up colposcopy and at new cytopathology. The methods showed similar performance when compared at follow-up histopathology. Therefore, according to the results of this study, rapid prescreening provides subsidies to improve the performance of cervical cytopathology tests, whose the principal function of which is to detect cervical cancer precursor lesions. / As altas taxas de resultados falso-negativos são problemas enfrentados na rotina dos laboratórios de citopatologia. Dentre os métodos de controle interno da qualidade, a revisão de 10% é a menos eficiente para detectar os resultados falso-negativos do escrutínio de rotina. No entanto, há evidências de que a revisão rápida de 100% e o pré-escrutínio rápido apresentam bons resultados na sua detecção. Porém, não existem estudos que compararam estes dois métodos. Objetivo: Comparar o desempenho do pré-escrutínio rápido e da revisão rápida de 100% como métodos de controle interno da qualidade dos exames citológicos do colo do útero. Métodos: Durante 27 meses 12.208 esfregaços citológicos cervicais provenientes das Unidades de Atenção Básica à Saúde do município de Goiânia foram submetidos ao pré-escrutínio rápido e ao escrutínio de rotina no Centro de Análises Clínicas Rômulo Rocha da Faculdade de Farmácia da Universidade Federal de Goiás-Goiânia-GO-Brasil. A revisão rápida de 100% foi realizada nos esfregaços negativos no escrutínio de rotina. Os resultados discordantes por qualquer dos métodos foram revisados detalhadamente para definição do diagnóstico citológico final, considerado padrão ouro para avaliar o desempenho do pré-escrutínio rápido e da revisão rápida de 100%. Nos casos com anormalidades citológicas foi avaliado o resultado dos exames colposcópicos, histológicos e da nova citologia. Foram estimadas a sensibilidade e a especificidade dos métodos de controle interno da qualidade quando comparados ao diagnóstico citológico final, ao exame colposcópico, histológico e ao novo exame citológico. Resultados: Comparado ao diagnóstico citológico final a sensibilidade do escrutínio de rotina e do pré-escrutínio rápido foi de 72,9% (IC 95%: 70,0%-75,8%) e 75,6% (IC 95%: 72,8%-78,4%), respectivamente. A sensibilidade do pré-escrutínio rápido e da revisão rápida de 100%, levando em conta os esfregaços negativos no escrutínio de rotina foi 90,2% (IC 95%: 86,4-93,9) e 57,0% (50,8%-63,2%), respectivamente. O pré-escrutínio rápido identificou 220 (1,8%) e a revisão rápida de 100% 140 (1,15%) dos 244 (2,0%) falso-negativos do escrutínio de rotina. A sensibilidade do pré-escrutínio rápido na detecção de anormalidades colposcópicas, histoológicas e no novo exame citológico foi de 87,5% (IC95%: 74,3%-100,7%), 82,4% (IC95%: 64,2%-100,5%), 95,7% (IC95%: 89,8%-101,5%), respectivamente, a sensibilidade da revisão rápida de 100% foi de 54,2% (IC95%: 34,2%-74,1%), 52,9% (IC95%: 29,2%-76,7%), 47,8% (IC95%: 33,4%-62,3%), respectivamente e a sensibilidade do escrutínio de rotina foi de 83,2% (IC95%: 77,1%-89,3%), 85,7% (IC95%: 79,4%-92,0%), 73,3% (IC95%: 66,6%-79,9%), respectivamente. Conclusões: O pré-escrutínio rápido foi mais eficiente que a revisão rápida de 100% para detectar resultados falso-negativos do escrutínio de rotina obtendo melhor desempenho quando comparado ao diagnóstico citológico final, ao resultado do exame colposcópico e ao novo exame citológico. Os métodos apresentaram desempenho semelhante quando comparado ao resultado do exame histológico. Portanto, de acordo com os resultados desse estudo, o pré-escrutínio rápido fornece subsídios para melhorar o desempenho dos exames citológicos, cuja principal função é detectar as lesões precursoras do câncer do colo do útero.
533

Estudo das infecções pelo HTLV-I e pelo HTLV-II como fatores prognósticos em uma coorte de portadores do HIV acompanhados em Santos-SP / Study on infections caused by HTLV-I and HTLV-II as prognostic factors in a cohort of HIV-positive patients followed up in Santos-SP

Arnaldo Etzel 06 August 2004 (has links)
s retrovírus humanos incluem o vírus da imunodeficiência humana (HIV), agente causal da síndrome da imunodeficiência adquirida (AIDS), e os vírus linfotrópicos de células T humanas do tipo I (HTLV-I) e do tipo II (HTLV-II), estes associados etiologicamente a doenças de natureza linfoproliferativa e/ou neurodegenerativa. Apresentam as mesmas formas de transmissão, resultando em fatores comuns de risco e em sobreposição de populações expostas. Embora os três vírus sejam linfotrópicos, o HIV se apresenta com altas taxas de replicação e proporciona a morte celular em todos os estágios da infecção, enquanto o HTLV-I e o HTLV-II podem causar proliferação e eventualmente transformação celular. O efeito do HTLV-I e do HTLV-II sobre o sistema imunológico como um dos fatores que interferem na evolução da AIDS envolve um grande interesse e ainda é motivo de controvérsia. Pesquisas in vitro sugerem que o HTLV-I e o HTLV-II podem aumentar a replicação e a expressão do HIV. Alguns estudos clínico-epidemiológicos apontam na direção de que exista efeito da concomitância das infecções pelo HIV e pelo HTLV-I ou pelo HTLV-II sobre a evolução da progressão da AIDS. Em um estudo anterior, desenvolvido entre portadores do HIV atendidos no Centro de Referência em AIDS de Santos-SP, observou-se uma soroprevalência de 6,0% da infecção pelo HTLV-I e de 7,4% pelo HTLV-II, o que poderia justificar a investigação de possível modificação na evolução da história natural da infecção pelo HIV nesses pacientes co-infectados. O presente trabalho foi desenvolvido, como um estudo de coorte retrospectiva, visando a avaliar o tempo de sobrevida dos portadores do HIV na população estudada e sua associação com as infecções pelo HTLV-I e pelo HTLV-II, bem como com outros fatores prognósticos e marcadores de progressão. Dos 495 portadores do HIV acompanhados entre 1997 e 2002, em um número total de 23.031,5 pacientes-mês, foi observado que 145 pacientes evoluíram para o óbito em decorrência da AIDS. A análise multivariada pelo modelo dos riscos proporcionais de Cox indicou que o tempo de evolução para o óbito por AIDS na população estudada foi associado de forma independente à raça negra (HR ajustado 1,50 - IC 95% 1,03-2,17), com menos de três anos de escolaridade formal (HR ajustado 1,90 - IC 95% 1,12-3,25), com os linfócitos CD4+ em número inferior a 200 células/mm³ no início do estudo (HR ajustado 4,44 - IC 95% 2,70-7,31), com a classificação CDC em categoria B ou C no início do estudo (HR ajustado 3,63 - IC 95% 1,54-8,56), com a soropositividade anti-HTLV-I (HR ajustado 1,95 - IC 95% 1,08-3,52), com a soropositividade anti-HCV (HR ajustado 1,76 - IC 95% 1,20-2,60) e com o uso de esquemas terapêuticos altamente ativos (HAART) em menos de 50% do tempo de seguimento (HR ajustado 2,36 - IC 95% 1,61-3,45). Não houve associação significativa com a soropositividade anti-HTLV-II. O estudo reforça as evidências de que a infecção pelo HTLV-I constitui um fator prognóstico de menor sobrevida em portadores do HIV / Human retroviruses include the human immunodeficiency virus (HIV), etiologic agent of the acquired immunodeficiency syndrome (AIDS), and also the human T-cell lymphotropic virus types I (HTLV-I) and II (HTLV-II), which can cause lymphoproliferative and/or neurodegenerative diseases. The three retroviruses present similar transmission patterns and share common risk factors resulting in overlap of exposed populations. Although these retroviruses are all lymphotropic, HIV has a high replication rate and induces cell death throughout the course of infection, whereas HTLV-I and HTLV-II can cause cell proliferation and occasionally cell transformation. HTLV-I and HTLV-II effects on the immune system and their interference in the progression of AIDS is a matter of great interest and still controversial. In vitro studies suggest that HTLV-I and HTLV-II may increase the replication and expression of HIV. Clinical epidemiologic studies indicate possible effects of simultaneous infections by HIV and HTLV-I or HTLV-II on the progression of AIDS. In a previous study, carried out among HIV-positive patients treated at an AIDS center in Santos - SP (Centro de Referência em AIDS de Santos), a seroprevalence of 6.0% for HTLV-I and of 7.4% for HTLV-II infections was observed, what enables further investigation on a possible modification in the progression of HIV disease in co-infected patients. This study was carried out with a retrospective cohort design, aimed at evaluating the survival time of HIV-positive patients in the studied group and its association with HTLV-I and HTLV-II infections, as well as with other prognostic factors and progression markers. Four hundred and ninety-five patients were monitored between 1997 and 2002. In this period, in a total of 23,031.5 patients/month, 145 AIDS related deaths were reported. Multivariate analysis using Cox proportional hazards model showed AIDS to be associated in the studied group with the following variables: black race (adjusted HR 1.50 - 95% CI 1.03-2.17), less than three-year education (adjusted HR 1.90 - 95% CI 1.12-3.25), less than 200 CD4+ baseline cells/mm3 (adjusted HR 4.44 - 95% CI 2.70-7.31), CDC classification B or C at study onset (adjusted HR 3.63 - 95% CI 1.54-8.56), anti-HTLV-I seropositivity (adjusted HR 1.95 - 95% CI 1.08-3.52), anti-HCV seropositivity (adjusted HR 1.76 - 95% CI 1.20-2.60), use of Highly Active Antiretroviral Therapy (HAART) in less than 50% of follow-up (adjusted HR 2.36 - 95% CI 1.61-3.45). There was no significant association with anti-HTLV-II seropositivity. This study provides further evidence that HTLV-I infection is a prognostic factor leading to reduced survival time of HIV-infected individuals
534

Acompanhamento ultrassonográfico, análise da evolução das pieloectasias fetais leves bilaterais e proposta de seguimento pré-natal / Ultrasonographic follow-up, analysis of the evolution of mild fetal bilateral pyelectasis and proposed prenatal follow-up

Gustavo de Paula Pereira 04 December 2013 (has links)
OBJETIVO: Este estudo teve por objetivo descrever o resultado dos casos de pieloectasia fetal leve bilateral, encaminhados ao serviço de Medicina Fetal do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), avaliados com ultrassonografias obstétricas dos rins e do trato urinário do feto e propor, com base nos dados, o melhor acompanhamento em termos de frequência de repetição de exames de ultrassonografia (US), no período pré-natal. METODOLOGIA: Pesquisa longitudinal prospectiva com 62 fetos com diagnóstico ultrassonográfico de pieloectasia leve bilateral (PELB), encaminhados de unidades de cuidados primários, realizada no HCFMUSP. PELB foi considerada quando o diâmetro anteroposterior da pelve renal (DAPPR), media >= 5,0 mm, >= 7,0 mm e >= 10,0 mm à US, respectivamente, em idades gestacionais <= 23 semanas (s) 6 dias (d), 24 s a 31 s 6 d e >= 32 s gestação, sem dilatação de ureteres e cálices. A cada 3 semanas, as US verificaram se a PELB havia progredido, regredido ou tinha ficado inalterada. Assim, quando possível, era realizada uma US de rins e vias urinárias neonatais para confirmação dos desfechos. A progressão foi considerada quando o DAPPR aumentou ou a imagem calicial foi encontrada em um ou ambos os rins. Regressão ocorreu quando os DAPPR entraram nos valores normais. A estabilidade foi considerada quando os DAPPR permaneceram dentro dos parâmetros considerados para pieloectasia leve. RESULTADOS E DISCUSSÃO: A idade gestacional ao diagnóstico foi de 19,2 para 30,1 semanas (média de 23,2 s). Regressão ocorreu em 29 casos (46,7%). Em 24 casos (38,7%), encontrou-se estabilidade. Houve regressão e estado estabilidade em 53 casos (85,4%). Progressão ocorreu em nove casos (14,6%), sendo unilateral em todos. Não foram observados casos graves. Já na avaliação pós-natal, foram examinados 32 neonatos, com 20 casos (62,5%) apresentando regressão; seis (18,7%) de estabilidade da pieloectasia; e seis de progressão da lesão (18,7%). Desfechos de regressão e estabilidade da pieloectasia foram encontrados em 26 casos (81,2%). Os resultados sugerem que as US não devem ser realizadas com frequência em casos de dilatação leve das pelves renais, sem cálices ou ureteres. Uma avaliação ultrassonográfica no terceiro trimestre tardio pode ser suficiente como uma estratégia de acompanhamento rotineiro nesses casos e que essa informação é útil para cuidados pós-natais imediatos. CONCLUSÃO: Esta série indica que PELB fetal, sem cálices ou ureteres visíveis, pode ser controlada ultrassonograficamente no terceiro trimestre tardio e, como não há casos progredindo o suficiente para indicar intervenção fetal, os procedimentos devem ser deixados para o período neonatal. A realização de US seriadas pode ser estressante e inútil nesses casos particulares / OBJECTIVE: The objective of this study was to describe the outcome of cases of mild fetal bilateral pyelectasis, referred to the Fetal Medicine service of Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo (HCFMUSP), assessed with obstetric ultrasound of the kidneys and urinary tract of the fetus in order to propose the best follow-up in terms of repetition frequency of ultrasound examinations in the prenatal period, based on the data. METHODOLOGY: A prospective longitudinal study of 62 fetuses from primary care units with mild bilateral pyelectasis (MBPE) diagnosed using ultrasonography (US) was carried out at HCFMUSP. MBPE was considered when anteroposterior renal pelvis diameter (APRPD) measured >= 5.0 mm, >= 7.0 mm and >= 10.0 mm in US at <= 23 weeks (w) 6 days (d), 24 w to 31 w 6 d and >= 32w gestational age (GA) respectively, with no ureteric and calyces dilatation. US every 3 weeks checked if MBPE had progressed, regressed or remained unchanged. When possible, a neonatal US of kidneys and urinary tract of the newborn was performed to confirm outcomes. Progression was considered when renal pelvis (RP) dilatation increased or visible calyces was found in one or both kidneys. Regression occurred when RP presented normal values. Stability was considered when APRPD remained within the parameters considered for mild pyelectasis. RESULTS AND DISCUSSION: GA at diagnosis was 19.2 to 30.1 weeks (mean 23.2w). Regression occurred in 29 cases (46.7%). In 24 (38.7%) RP dilatation remained unchanged. Regression and unchanged status occurred in 53 cases (85.4%). Lesions worsened in 9 cases (14.6%, unilateral in all cases). No severe cases were observed. 32 newborns already on postnatal evaluation were examined, 20 cases (62.5%) showed involution; 6 cases with stable pyelectasis (18.7%), and 6 cases of lesion progression (18.7%). Outcomes: pyelectasis regression and stability was found in 26 cases (81.2%). Results suggest that US should not be performed too often in cases of RP dilatation with no visible calyces or ureter. A late third trimester US scan could be a sufficient routine follow up strategy in such cases and information is useful to immediate postnatal care. CONCLUSION: This study indicates that fetal MBPE with no visible calyces or ureter could be controlled at late third trimester and procedures should be left to the neonatal period as no cases progressed sufficiently to indicate fetal intervention. Proceeding serial ultrasound scans could be stressful and useless in these particular cases
535

Rubéola na gestação: repercussões sobre o produto conceptual. / Rubella in pregnancy: effects on the fetus and developing child

Denise Araujo Lapa Pedreira 02 December 1998 (has links)
OBJETIVOS: Avaliar os efeitos da rubéola durante a gestação, sobre o feto, o recém-nascido e a criança. CASUÍSTICA E MÉTODO: Analisamos 35 gestantes com suspeita de rubéola que foram divididas em dois grupos. Grupo 1: 15 pacientes que apresentaram quadro clínico com comprovação sorológica. Grupo2: 20 pacientes com IgM positiva na rotina pré-natal, na ausência de quadro clínico. O seguimento ultrasonográfico mensal foi realizado em todas as pacientes e as do grupo 1 foram encaminhadas também para propedêutica invasiva. Foram também realizadas a ecocardiografia fetal e a Dopplervelocimetria. As placentas foram submetidas a exame anátomo-patológico. Os recém-nascidos vivos foram avaliados através de exame clínico e sorológico, além do potencial evocado auditivo, ultra-sonografia de crânio, fundo de olho e ecocardiografia pós-natal. RESULTADOS: No grupo 1: a infecção fetal ocorreu em 9 casos, sendo que o risco de transmissão vertical entre 2 a 14 semanas foi de 64,9%. A malformação ocorreu em 37,5% dos infectados. A ultrasonografia revelou crescimento intra-uterino retardado simétrico em todos os fetos infectados que atingiram o terceiro trimestre, tendo se iniciado, em média com 25,1 semanas. A cordocentese foi realizada em 9 pacientes e, todos os casos infectados, apresentavam IgM positiva e eritroblastose no sangue de cordão. A PCR no líquido amniótico foi positiva em todos os 3 casos em que ela foi realizada. 50% das placentas dos fetos infectados apresentava sinais sugestivos de infecção viral. A idade gestacional média do parto entre os infectados foi de 33,8 semanas e o peso médio ao nascimento foi 1365,6g.Todos os 6 nascidos-vivos infectados foram classificados como pequenos para a idade gestacional e apresentaram disacusia. A sobrevida entre os infectados, num seguimento pós-natal médio de 35,2 meses, foi de 62,5%. No grupo 2: a infecção não foi comprovada em nenhum dos recém-nascidos vivos, porém em um caso pudemos demonstrar a infecção congênita pelo vírus de Epstein-Barr. CONCLUSÕES: A transmissão vertical da rubéola no primeiro trimestre parece poder variar entre as populações, bem como a presença dos defeitos associados à infecção. Tanto o diagnóstico invasivo, como o ultrasonográfico apresentaram boa sensibilidade e especificidade. Pudemos estabelecer o padrão de crescimento fetal associado à infecção. A presença isolada de IgM positiva para rubéola na gestação não teve boa correlação com a presença de infecção neonatal, porém pode se associar à presença de outras infecções congênitas. / OBJECTIVES: Our aim was to analyse rubella effects on the fetus, new-born and child. MATERIAL AND METHODS: We analysed 35 patients with suspicious rubella during pregnancy. According to presence or absence of symptoms they were divided in two groups. Group 1: 15 patients presenting rash in which serology was positive. Grupo2: 20 symptomless patients found to have positive IgM during routine prenatal care. Monthly ultrasonographic evaluation was accomplished in all patients and in group 1 they were also offered prenatal invasive testing. Fetal echocardiography and Dopplers were performed. After birth, the placentas were submitted to pathological examination. The liveborn babies had clinical and serological examination. Auditory tests, brain scan, fundoscopy and postnatal echocardiography were also performed. RESULTS: In group 1: fetal infection occurred in 9 cases and vertical transmission between 2 to 14 weeks was 64,9%. Malformation was present in 37,5% of infected cases. Ultrasound revealed symmetrical intra-uterine growth retardation in all infected fetuses that reached the third trimester, and started around 25,1 weeks. Cordocentesis was accomplished in 9 cases and all the infected ones, presented positive IgM and erythroblastosis in cord blood. PCR in the amniotic fluid was positive in all 3 cases it was performed. 50% of the infected fetuses placentas presented signs of viral infection. The average gestacional age of delivery among infected cases was 33,8 weeks and medium birth weight was 1365,6g. All 6 liveborn infected babies were small for gestacional age and presented deafness. Survival among infected cases was 62,5%, medium follow-up was 35,2 months. In group 2: the infection was not demonstrated in any of neonates, although we could demonstrate a congenital infection caused by the Epstein-Barr virus. CONCLUSIONS: Vertical transmission of the rubella in the first trimester seems to vary among different populations, as well as the presence of the associated defects in the new-born. Invasive diagnosis and ultrasonographic follow-up presented good sensitivity and specificity. We could establish the pattern of fetal grown associated to the infection. The isolated presence of a positive rubella IgM in pregnancy did not correlated with congenital rubella, but it can be related to other congenital infections.
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Desenvolvimento da acuidade visual de resolução de grades em prematuros durante o primeiro ano de vida : estudo eletrofisiológico pelo registro dos potenciais visuais evocados de varredura / Grating visual acuity development in preterm infants during the first year of life: an electrophysiological study using sweep visual evoked potentials

Filomena Maria Buosi de Haro 18 August 2003 (has links)
Objetivos: determinar a acuidade visual de resolução de grades (AV) durante o primeiro ano de vida por meio dos registros dos potenciais visuais evocados de varredura em grupos de crianças nascidas prematuramente (RNPT) e a termo (RNT); comparar os valores finais da AV no grupo RNPT em relação à idade gestacional e ao desenvolvimento neuropsicomotor e comparar as curvas de desenvolvimento visual entre os grupos RNPT e RNT. Casuística e métodos: Estudo realizado em 25 RNT e 36 RNPT acompanhados em ambulatório e submetidos a avaliações oftalmológica e neuropediátrica. O grupo RNPT foi dividido em subgrupos com relação a idade gestacional e desenvolvimento neuropsicomotor. Para a medida da AV foi utilizado o aplicativo NuDIVA (\"Digital Infant Visual Assessment\") calculando-se a AV em logaritmo do mínimo ângulo de resolução (logMAR) através de curva de regressão linear, relacionando-se a amplitude do potencial do segundo harmônico à freqüência espacial linear. Na análise estatística utilizou-se método de Fischer, teste t, análise de variância (ANOVA) e teste para comparação entre retas de regressão linear simples. O nível de significância foi fixado em 0,05. Resultados: Estrabismo foi detectado em cinco crianças, todas do grupo RNPT, quatro delas com alteração neurológica (p=0,07). Erros de refração com necessidade de prescrição óptica foi encontrado em seis crianças, todas do grupo RNPT (p=0,07). A medida da AV foi obtida com sucesso em 96,4% dos casos, sendo ao final do primeiro ano de vida significativamente inferior nos RNPT com alteração neurológica (p<0,05). A medida da AV estimada ao nascimento foi maior em todos os RNPT com relação aos RNT (p<0,05) porém a velocidade de aquisição da AV foi maior no grupo RNT (p<0,05). Conclusões: A AV pôde ser facilmente determinada durante o primeiro ano de vida tanto em RNPT quanto em RNT sendo seus valores semelhantes, com exceção dos RNPT que apresentaram alteração neurológica. Todos os RNPT apresentaram desenvolvimento visual semelhante, porém, significativamente inferior ao encontrado para os RNT / Purpose: Determine the grating visual acuity (VA) of a group of preterm infants using sweep visual evoked potentials (sweep-VEP). Compare the development of VA of these infants to that of normal full-term infants, with respect to: gestational age, neuropsychomotor development and visual development. Methods: The study was conducted on 25 preterm and 36 full-term infants, with follow-up ophthalmologic and neuropediatric evaluations. The preterm infants were divided into subgroups in accordance with their gestational age and neurological development. VA was assessed using the Digital Infant Visual Assessment (NuDiva) sweep-VEP system, expressed in logMAR, and threshold grating acuities were estimated using the VEP second harmonic amplitudes, determined by a linear regression line drawn through the highest spatial frequency peak and the spatial frequency at which signal amplitude reaches the noise level. Statistical analysis was performed using the Fisher, Student-t test, analysis of variance (ANOVA) and comparison by simple linear regression test between the two groups. The significance level was 0.05. Results: Strabismus was detected in five preterm infants; four of these had neurological alterations (p=0.07). Prescription for refractive errors was necessary in six preterm infants (p=0.07). Grating VA was assessable in 96.4% of the infants; preterm infants with neurological alterations had significantly lower grating VA (p<0.05) at the end of the first year. Early VA scores were higher in all of the preterm infants compared to the full term infants (p<0,05) but at the end of the first year of life the VA was improving at a higher rate in the full term group (p<0.05)
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Morbiditet, telesni i rani psihomotorni razvoj prevremeno rođene dece začete vantelesnom oplodnjom / Morbidity, physical and early psychomotor development of prematurely born children conceived by assisted reproductive technologies

Pavlović Vesna 01 March 2018 (has links)
<p>Uvod: Infertilitet se defini&scaron;e kao bezuspe&scaron;na koncepcija nakon jedne godine seksualnih odnosa bez upotrebe kontracepcije u fertilnoj fazi menstrualnog ciklusa. Metode asistirane reprodukcije predstavljaju efektivan način lečenja infertiliteta. Ispitivanje i identifikacija kratkoročnih i dugoročnih efekata arteficijalnih reproduktivnih tehnologija je veoma izazovan zadatak. Prvenstveni razlog tome je velika heterogenost u načinu sakupljanja, obrade, klasifikacije i tumačenja, sada već, obilja informacija koje su prikupljene u različitim istraživanjima. Individualni pristup lečenju neplodnosti, brz napredak i stalne promene u metodologiji arteficijalnih reproduktivnih tehnologija, uz ranije navedene pote&scaron;koće u vezi sa prikupljanjem i analizom podataka, značajno otežavaju precizno sagledavanje svih mogućih rizika i posledica arteficijanog začeća. Uprkos brojnim istraživanjima, naučnim publikacijama i akumuliranim dokazima, ostale su mnoge dileme u vezi odgovora na pitanja - da li su arteficijalno začete trudnoće u većoj meri praćene rizicima za neadekvatan razvoj ploda, lo&scaron;ijim perinatalnim ishodom i kakve su dugoročne posledice po decu, kao i da li su ovi rizici podjednako zastupljeni u jednoplodnim i vi&scaron;eplodnim trudnoćama.<br />Cilj rada: Ciljevi rada su bili da se utvrdi struktura morbiditeta kod prevremeno rođene dece začete vantelesnom oplodnjom (iz jednoplodnih i vi&scaron;eplodnih trudnoća) u prve dve godine života, te da se identifikuju perinatalni faktori koji su povezani sa pojavom akutnih i hroničnih komplikacija i oboljenja kod prevremeno rođene dece začete vantelesnom oplodnjom. Takođe, cilj rada je bio da se utvrde karakteristike psihomotornog razvoja kod prevremeno rođene dece začete vantelesnom oplodnjom na kraju dvanestog, osamnaestog i dvadesetčetvrtog meseca života, kao i da se identifikuju specifični faktori rizika za nepovoljan telesni, neurolo&scaron;ki i psiholo&scaron;ki ishod lečenja kod prevremeno rođene dece začete vantelesnom oplodnjom.<br />Materijal i metode: U studiju su uključena prevremeno rođena deca koja su bila hospitalizovana u Službi za neonatologiju i intenzivnu i poluintenzivnu negu i terapiju, i koja su nakon toga, tokom prve dve godine života redovno praćena u neonatolo&scaron;koj ambulanti Instituta za zdravstvenu za&scaron;titu dece i omladine Vojvodine u Novom Sadu. Retrospektivnim delom studije su obuhvaćena deca koja su lečena u Službi i praćena u neonatolo&scaron;koj ambulanti, a koja su rođena počev od 01. 01. 2011. do 31.12.2012. godine i praćena do navr&scaron;ena puna 24 meseca života. Podaci o pacijentima koji su uključeni u retrospektivni deo istraživanja prikupljani su pregledom medicinske dokumentacije. U prospektivni deo studije su uključena deca koja su lečena u Službi i koja su praćena u neonatolo&scaron;koj ambulanti, a koja su rođena između 01.01. 2013.godine i 31.12.2014. godine i potom praćena do navr&scaron;enih 24 meseca života. Iz navedene kohorte, formirane se dve grupe: Ispitivana grupa (Grupa 1) je obuhavatila svu prevremeno rođenu decu začetu vantelesnom oplodnjom koja su bila hospitalizovana i praćena na Institutu u navedenom periodu. Kontrolna grupa (Grupa 2) obuhvatila je prevremeno rođenu decu začetu prirodnim putem. Deca iz kontrolne grupe izabrana su iz kohorte tako da njihov broj bude jednak broju dece iz ispitivane grupe. Ispitanici iz ove grupe su ujednačeni (&#39;&#39;mečovani&#39;&#39;) sa decom iz ispitivane grupe prema gestacijskoj starosti i datumu rođenja. Gestacijska starost ispitanika iz kontrolne grupe se ne razlikuje za vi&scaron;e od &plusmn; 4 dana u odnosu na decu iz ispitivane grupe. Datum rođenja ispitanika koji su uključeni u kontrolnu grupu se ne razlikuje za vi&scaron;e od &plusmn; 3 meseca u odnosu na decu iz ispitivane grupe.<br />U momentu uključivanja u studiju uzimani su sledeći anamezni podaci:<br />Podaci u vezi sa majkom, trudnoći i porođaju: starost majke u momentu koncepcije, broj prethodnih poku&scaron;aja asistirane koncepcije, stručna sprema, mesto stanovanja, hronične bolesti dijagnostikovane pre trudnoće, akutne i hronične bolesti dijagnostikovane tokom trudoće (hipertenzija, pre-eklampsija, eklampsija, o&scaron;tećenje jetre), prevremena ruptura plodovih ovojaka, primena lekova tokom trudnoće, jednoplodna ili vi&scaron;eplodna trudnoća. Podaci o poremećajima posteljice i ovojaka: ablacija, placenta previja, horioamnionitis. Podaci u vezi sa detetom: intrauterina infekcija, intrauterina restrikcija rasta, način porođaja, Apgar skor. Antropometrijski parametri (telesna masa, telesna dužina, obim glave) na rođenju i tokom perioda ambulantnog praćenja deteta. Dužina inicijalne hospitalizacije deteta. Dužina invazivne i/ili neinvazivne respiratorne potpore i oksigenoterapije. Dijagnoze na otpustu iz bolnice: prisustvo te&scaron;kih posledica prematuriteta, &scaron;to podrazumeva: intrakranijalnu hemoragiju 3. i 4. stepena (definisanu u međunarodnoj klasifikaciji bolesti &ndash; deseta revizija (MKB10) pod &scaron;ifrom P52.2), cističnu periventrikularnu leukomalaciju, retinopatiju prematuriteta, bronhopulmonalnu displaziju, nekrotizirajući enterokolitis, sepsu i/ili meningitis (mikrobiolo&scaron;ki ili klinički dijagnostikovanu). Prisustvo urođenih anomalija ili genetskih sindroma i bolesti (definisanih u MKB10 pod &scaron;iframa Q00 do Q99), kao i prisustvo urođenih bolesti metabolizma (definisanih u MKB10 pod &scaron;iframa E00 do E90).<br />U retrospektivnom delu studije, pregledani su specijalistički izve&scaron;taji iz neonatolo&scaron;ke ambulante pri posetama deteta u uzrastu deteta od 12, 18 i 24 meseca, i beleženi su sledeći podaci: sve prethodno postavljene dijagnoze koje su navedene na specijalističkim izve&scaron;tajima iz neonatolo&scaron;ke ambulante, antropometrijski prametri u momentu pregleda (telesna dužina, telesna masa i obim glave), neurolo&scaron;ki nalaz (tonus, trofika, kožni i tetivni refleksi, prisustvo lateralizacije u neurolo&scaron;kom nalazu), nalaz oftalmologa (uredan nalaz/patalo&scaron;ki nalaz), procena fine i grube motorike, govora, kognitivne funkcije i socijalnog kontakta i zbirna procena psihomotornog razvoja. U prospektivnom delu studije, pri kontrolnim pregledima u neonatolo&scaron;koj ambulanti, u uzrastu deteta od 12, 18 i 24 meseca, određivano je i beleženo sledeće: ranije postavljene dijagnoze koje su navedene u medicinskoj dokumentaciji, antropometrijski prametri u momentu pregleda (telesna dužina, telesna masa i obim glave), neurolo&scaron;ki nalaz (tonus, trofika, kožni i tetivni refleksi, prisustvo lateralizacije u neurolo&scaron;kom nalazu), nalaz oftalmologa (uredan nalaz/patalo&scaron;ki nalaz), procena fine i grube motorike, govora, kognitivne funkcije i socijalnog kontakta i zbirna procena psihomotornog razvoja.<br />Rezultati: Prosečna vednost TM ispitanika iz Grupe 1, u uzrastu od 12 meseci, bila je statistički značajno manja u odnosu na ispitanike iz Grupe 2 (Studentov t test). Prosečne vednosti TD ispitanika iz obe grupe, u uzrastu od 12 meseci, nisu se statistički značajno razlikovale (Studentov t test). Prosečne vednosti OGL ispitanika iz obe grupe, u uzrastu od 12 meseci, nisu se statistički značajno razlikovale (Studentov t test). Udeo ispitanika sa patolo&scaron;kim oftalmolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Fi&scaron;erov test tačne verovatnoće). Udeo ispitanika sa patolo&scaron;kim neurolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Hi kvadrat test). Prosečne vrednosti globalnog koeficijenta razvoja (RQ), kao i prosečne vrednosti skora za pojedine elemente za procenu razvoja (motorika, koordinacija, govor i dru&scaron;tvenost) po Brunet -L&eacute;zine skali, nisu se statistički značajno razlikovale između grupa (Studentov t test). U Grupi 1 bilo je 92 (59,740%) deteta čiji je nekorigovani RQ bio ispod 90, dok je u Grupi 2 bilo 61 (39,610%) dete čiji je nekorigovani RQ bio ispod 90. Ova razlika u broju dece sa RQ koji je ispod proseka za kalendarski uzrast je statistički značajna (Hi kvadrat test, p=0,0004). Relativni rizik za ispodprosečno postignuće na testu za procenu psihomotornog razvoja (RQ&lt;90), za decu iz Grupe 1 bio je vi&scaron;i, u odnosu na decu iz Grupe 2 (RR = 1,495; 95% CI 1,181 &ndash; 1,892). U Grupi 1, bilo je 87 (56,494%) dece koja su postigla ispodprosečne korigovane vrednosti skora na testu za procenu psihomotornog razvoja (korigovani RQ&lt;90). U Grupi 2 bilo je 69 (44,805%) dece koja su postigla ispodprosečne korigovane vrednosti skora na testu za procenu psihomotornog razvoja (korigovani RQ&lt;90). Ova razlika je statistički značajna (Hi kvadrat test, p =0,040). Relativni rizik za ispodprosečno postignuće na testu za procenu psihomotornog razvoja (korigovani RQ&lt;90), za decu iz Grupe 1 bio je vi&scaron;i, u odnosu na decu iz Grupe 2 (RR = 1,261; 95%CI 1,008 &ndash; 1,577). U kategoriji dece, koja su i pored korekcije u odnosu na GS imala ispodprosečno postignuće na testu za procenu psihomotornog razvoja, u Grupi 1 čak 81/87 (93,310%) dece je imalo vrednost korigovanog RQ &ge; 85, a u Grupi 2 ovu vrednost korigovanog RQ imalo je 60/69 (86,956%) dece.<br />Prosečne vednosti TM ispitanika iz obe grupe, u uzrastu od 18 meseci, nisu se statistički značajno razlikovale (Studentov t test). Prosečne vednosti TD ispitanika iz obe grupe, u uzrastu od 18 meseci, nisu se statistički načajno razlikovale (Studentov t test). Prosečne vednosti OGL ispitanika iz obe grupe, u uzrastu od 18 meseci, nisu se statistički značajno razlikovale (Studentov t test). Udeo ispitanika sa patolo&scaron;kim oftalmolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Hi kvadrat test). Udeo ispitanika sa patolo&scaron;kim neurolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Hi kvadrat test). Prosečne vrednosti RQ, kao i prosečne vrednosti skora za pojedine elemente za procenu razvoja (motorika, koordinacija, govor i dru&scaron;tvenost) po Brunet -L&eacute;zine skali su se statistički značajno razlikovale između grupa u uzrastu od 18 meseci (Studentov t test). U Grupi 1 bilo je 57 (37,013%) dece čiji je nekorigovani RQ bio ispod 90, dok je u Grupi 2 bilo 31 (20,130%) dete čiji je nekorigovani RQ bio ispod 90. Udeo dece sa RQ koji je ispod proseka za kalendarski uzrast je statistički značajno različit između grupa (Hi kvadrat test, p = 0,010). Relativni rizik za ispodprosečno postignuće na testu za procenu psihomotornog razvoja (nekorigovani RQ&lt;90), za decu iz Grupe 1 bio je vi&scaron;i, u odnosu na decu iz Grupe 2 (RR = 1,288; 95%CI 1,181 &ndash; 2,730). Statistički značajna razlika postojala je i kada je upoređen broj dece sa vrednostima korigovanog RQ ispod 90 u Grupi 1 i Grupi 2 (36 naspram 19 po redosledu navođenja; Hi kvardat test, p = 0,011). Relativni rizik za ispodprosečno postignuće na testu za procenu psihomotornog razvoja (korigovani RQ&lt;90), za decu iz Grupe 1 bio je vi&scaron;i, u odnosu na decu iz Grupe 2 (RR = 1,895; 95%CI 1,139 &ndash; 3,152).<br />Prosečne vednosti TM ispitanika iz obe grupe, u uzrastu od 24 meseca, nisu se statistički značajno razlikovale (Studentov t test). Prosečne vednosti TD ispitanika iz obe grupe, u uzrastu od 24 meseca, nisu se statistički značajno razlikovale (Studentov t test). Prosečne vednosti OGL ispitanika iz obe grupe, u uzrastu od 24 meseca, nisu se statistički značajno razlikovale (Studentov t test). Udeo ispitanika sa patolo&scaron;kim oftalmolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Hi kvadrat test). Udeo ispitanika sa patolo&scaron;kim neurolo&scaron;kim nalazom nije se statistički značajno razlikovao između Grupe 1 i Grupe 2 (Hi kvadrat test). Prosečne vrednosti RQ, kao i prosečne vrednosti skora za pojedine elemente za procenu razvoja (motorika, koordinacija, govor i dru&scaron;tvenost) po Brunet -L&eacute;zine skali, nisu se statistički značajno razlikovale između grupa, u uzrastu od 24 meseca (Studentov t test). U Grupi 1 bilo je 21 dete (13,636%) čiji je nekorigovani RQ bio ispod 90, dok je u Grupi 2 bilo 17 (11,049%) dece čiji je nekorigovani RQ bio ispod 90. Razlika u broju dece sa RQ koji je ispod proseka za kalendarski uzrast nije statistički značajna (Hi kvadrat test, p= 0,488). Statistički značajna razlika nije postojala ni kada je upoređen broj dece sa vrednostima korigovanog RQ ispod 90 u Grupi 1 i Grupi 2 (12 naspram 9 po redosledu navođenja; Hi kvardat test, p = 0,497).<br />Logističkom regresionom analizom pokazano je da su ve&scaron;tačko začeće, vi&scaron;eplodnost trudnoće i IUGR nezavisni faktori rizika za manju TM u kalendarskom uzrastu od 12 meseci. Logističkom regresionom analizom dobijena je statistički značajna korelacija između vrednosti RQ u uzrastu od 18 meseci i sledećih nezavisnih varijabli: arteficijalno začeta trudnoća i vi&scaron;eplodna trudnoća. Isptanici iz Grupe 1 i Grupe 2 nisu se statistički značajno razlikovali ni po jednom od posmatranih pokazatelja telesnog i psihomotornog razvoja u uzrastu od 24 meseca.<br />Struktura morbiditeta kod dece, tokom dvogodi&scaron;njeg perioda praćenja, nije se značajno razlikovala između grupa. Jedina razlika između grupa, konstatovana je u uzrastu od 12 i 18 meseci, bila je u učestalosti akutnih respiratornih infekcija, čija je pojava, pak, bila direktno povezana sa vi&scaron;eplodnim trudnoćama, odnosno brojem siblinga u domaćinstvu.<br />Zaključak: Prosečna starost majki dece koja su začeta IVF-om je veća od prosečne starosti majki dece koja su spontano začeta. Struktura morbiditeta majki dece koja su začeta IVF-om i majki dece koja su začeta spontanom koncepcijom je ista, ali je stopa morbiditeta veća kod majki dece koja su začeta IVF-om. Vi&scaron;eplodne trudnoće su veoma zastupljene kod začeća IVF-om. Trudnoće začete IVF-om se dominantno i skoro ekskluzivno okončavaju carskim rezom. Prevremena ruptura ovojaka ploda je česta komplikacija trudnoća koje su začete IVF-om. Stopa morbiditeta prevremeno rođene dece začete vantelesnom oplodnjom nije veća u odnosu na prevremeno rođenu decu začetu prirodnim putem. U strukturi morbiditeta kod dece koja su začeta vantelesnom opodnjom, zastupljena su ista oboljenja i komplikacije kao kod prevremeno rođene dece začete prirodnim putem. Incidencija pojedinih oboljenja je ista, sa izuzetkom bronhopulmonalne displazije koja se javlja če&scaron;če kod dece začete vantelesnom oplodnjom i retinopatije prematuriteta koja se javlja če&scaron;če kod dece začete prirodnim putem. Porođajna telesna masa, intrauterina restrikcija rasta, starost majke, stručna sprema majke, prethodna hronična oboljenja majke, bolesti majke dijagnostikovane tokom trudnoće, jednoplodna i vi&scaron;eplodna trudnoća, način porođaja i PROM su potencijalni faktori rizika za lo&scaron;iji postnatalni ishod kod dece iz arteficijalno začetih trudnoća. U uzrastu od 12 meseci, prevremeno rođena deca začeta tehnikama in vitro fetrilizacije, sem po dostignutoj telesnoj masi, ne razlikuju se značajno po drugim telesnim karakteristikama, od prevremeno rođene dece koja su začeta prirodnim putem. Faktori rizika za manju telesnu masu kod prevremeno rođene dece, u uzrastu od 12 meseci su: arteficijalno začeće, vi&scaron;eplodne trudnoće i intrauterina restrikcija rasta. U uzrastu od 12 meseci, prevremeno rođena deca začeta in vitro fertilizacijom, imaju blago lo&scaron;ije (ali ne i značajno niže) postignuće na testovima za procenu psihomotornog razvoja, odnosno imaju vi&scaron;i rizik da postignu ispodprosečne vrednosti skora na testu za procenu psihomotornog razvoja. U uzrastu od 18 meseci, nema razlike u pokazateljima telesnog razvoja između prevremeno rođene dece koja su arteficijalno začeta i dece koja su rođena iz spontano začetih trudnoća. U uzrastu od 18 meseci, prevremeno rođena deca iz arteficijalno začetih trudnoća imaju niže postignuće na testovima za procenu psihomotornog razvoja u odnosu na prevremeno rođenu decu iz spontano začetih trudnoća. Faktori rizika koji su povezani sa lo&scaron;ijim postignućem na testu za procenu psihomotornog razvoja kod prevremeno rođene dece su arteficijalno začeće trudnoće i vi&scaron;eplodnost trudnoće. U uzrastu od 24 meseca nema razlike u telesnim parametrima između prevremeno rođene dece koja su arteficijalno začeta i prevremeno rođene dece koja su začeta prirodnim putem. U uzrastu od 24 meseca nema razlike u postignuću na testu za procenu psihomotornog razvoja kod prevremeno rođene dece su arteficijalno začeće trudnoće i vi&scaron;eplodnost trudnoće. U uzrastu od 24 meseca, prevremeno rođena deca, i iz arteficijalno, i iz spontano začetih trudnoća, na testu za procenu psihomotornog razvoja postižu rezultate koji su u skladu sa njihovim kalendarskim uzrastom.</p> / <p>Introduction: Infertility is defined as an unsuccessful conception after one year of sexual intercourse without the use of contraception in the fertilizing phase of the menstrual cycle. Assisted reproduction methods represent an effective way of treating infertility. Examination and identification of short-term and long-term effects of artificial reproductive technologies is a very challenging task. The primary reason for this is the great heterogeneity in the way of collecting, processing, classifying and interpreting, now, the abundance of information that has been gathered in various studies. Individual approach to the treatment of infertility, rapid progress and constant changes in the methodology of the artificial reproductive technologies, in addition to the aforementioned difficulties associated with the collection and analysis of data, significantly hamper accurate assessment of all possible risks and consequences artificial conception. Despite numerous studies, scientific publications and the accumulated evidence, many doubts about the question whether artificially conceived pregnancies are accompanied by the higher risks or inadequate fetal development, poor perinatal and long-term outcomes still remained.<br />The Aim: The objectives of this work were to determine the structure of morbidity in prematurely born children conceived by artificial reproductive technologies (from single and multiple pregnancies) in the first two years of life, and to identify perinatal factors that are associated with the occurrence of acute and chronic complications and diseases in prematurely born children from this pregnancies. In addition, the aim of the study was to determine the characteristics of psychomotor development in prematurely born children conceived by artificial reproductive technologies at the end of the twelfth, eighteenth and twenty-fourth month of life, as well as to identify specific risk factors for the unfavorable physical, neurological and psychological outcome of those children.<br />Materials and Methods: The study included premature born newborns who were hospitalized in the Department for neonatology and intensive and semi-intensive care unit, and are thereafter, during the first two years of life. The retrospective part of the study included children who were hospitalized at the Institute, and who were born from January 1st 2011. to December 31st 2012. and were followed up to 2 years of life. Data on patients included in the retrospective part of the survey were collected through a review of medical records. The prospective part of the study included children who were treated and followed up at the Institute, and who were born between January 1st 2013 and December 31st 2014. and then followed up to 2 years of life. From this cohort two groups were formed: The tested group (Group 1) included all preterm infants who were conceived by ART. The control group (Group 2) included naturally conceived prematurely born children. The children in the control group were selected from the cohort so that their number was equal to the number of children in the study group. The gestational age of the examinees from the control group does not differ for more than &plusmn; 4 days from the children from the study group. The date of birth of subjects included in the control group does not differ for more than &plusmn; 3 months from the children in the study group.<br />At the moment of inclusion in the study, the following individual data were taken:<br />Maternal data, pregnancy and childbirth: the age of the mother at the moment of conception, the number of previous attempts at assisted conception, professional care, place of residence, chronic diseases diagnosed before pregnancy, acute and chronic diseases diagnosed during pregnancy (hypertension, pre-eclampsia, eclampsia, liver damage), premature rupture of the fetuses, the use of medication during pregnancy, single or multiple pregnancy. Data on placental disorders and abnormalities: ablation, placenta overdose, horioamnionitis. Child-related data: intrauterine infection, intrauterine growth restriction, delivery method, Apgar score. Anthropometric parameters (body weight, body length, head circumference) at birth and during the period of outpatient monitoring of the child. Length of initial hospitalization of the child. Length of invasive and / or non-invasive respiratory support and oxygen therapy. Diagnosis on discharge from the hospital: the presence of severe consequences of prematurity, which implies intracranial hemorrhage of 3rd and 4th degree (defined in International Classification of Disease - Tenth Revision (MKB10) under code P52.2), cystic periventricular leukomalacia, retinopathy of prematurity, bronchopulmonary dysplasia , necrotizing enterocolitis, sepsis and / or meningitis (microbiologically or clinically diagnosed). Presence of congenital anomalies or genetic syndromes and diseases (defined in MKB10 under codes Q00 to Q99), as well as the presence of congenital metabolic diseases (defined in MKB10 under codes E00 to E90).<br />In the retrospective part of the study, specialist reports from a neonatological clinic were examined for child visits at the age of 12, 18 and 24 months, and the following data were ecorded: all pre-diagnosis reported on specialist reports from a neonatological clinic, anthropometric arms at the moment examination (body length, body weight and head circumference), neurological findings (tone, trophic, skin and tendon reflexes, presence of lateralization in neurological findings), ophthalmologist findings (neat / patial findings), assessment of fine and coarse motoring, speech, cognitive functions and social contact and a collective assessment of psychomotor development. In the prospective part of the study, during control examinations in a neonatological clinic, at the age of 12, 18 and 24 months, the following were determined and recorded: previously set out in the current medical documentation, anthropometric parameters at the moment of examination (body length, body weight and the volume of the head), neurological findings (tone, trophic, skin and tendon reflexes, presence of lateralization in neurological findings), ophthalmologist findings, assessment of fine and grose motor functions, speech, cognitive functions, social contact and psychomotor development.<br />Results: The average BW of subjects in Group 1 at the age of 12 months, was statistically significantly lower in relation to respondents from Group 2 (Student&#39;s T test). The average length of subjects from both groups at the age of 12 months did not statistically differ (Student&#39;s T test). The average head circumference between children from both groups, at the age of 12 months, did not statistically differ (Student&#39;s T test). The proportion of subjects with pathological ophthalmological findings did not statistically significantly differ between Group 1 and Group 2 (Fischer&#39;s exact probability test). The proportion of subjects with pathological neurological findings did not statistically significantly differ between Group 1 and Group 2 (Hi square test). The average values of the global development coefficient (RQ), as well as the average score values for individual elements of development evaluation test - Brunet-L&eacute;zine scale (motor function, coordination, speech and sociability) did not differ significantly between groups (Student t test). In Group 1 there were 92 (59.740%) of children whose uncorrected RQ was under 90, while in Group 2 there were 61 (39.610%) children whose uncorrected RQ was below 90. This difference in the number of children with RQ below the average for calendar age is statistically significant (Hi square test, p = 0.0004). The relative risk of under-achievement in the psychomotor evaluation test (RQ &lt;90) for children from Group 1 was higher than in children from Group 2 (RR = 1.495; 95% CI 1.181 - 1.922). In Group 1, there were 87 (56.494%) children who achieved sub-optimal corrected score values for the assessment of psychomotor development (corrected RQ &lt;90). In Group 2, there were 69 (44.805%) children who achieved sub-optimal corrected score values for the assessment of psychomotor development (corrected RQ &lt;90). This difference is statistically significant (Hi square test, p = 0.040). The relative risk for the suboptimal achievement in the psychomotor evaluation test (corrected RQ &lt;90) for children from Group 1 was higher than in Group 2 (RR = 1.261; 95% CI 1.008 - 1.577). In Group 1, as many as 81/87 (93.310%) of children had a corrected RQ value of &ge; 85, while in Group 2 this value of the corrected RQ there were 60/69 (86.956%) children.<br />At the age of 18 months, the average BW of subjects from both groups did not differ significantly (Student&#39;s T test). The average length of subjects from both groups, at the age of 18 months, did not statistically differ (Student&#39;s T test). The average head circumference of children from both groups, at the age of 18 months, did not statistically differ (Student&#39;s T test). The proportion of subjects with pathological ophthalmological findings did not statistically significantly differ between Group 1 and Group 2 (Hi square test). The proportion of subjects with pathological neurological findings did not statistically differ between Group 1 and Group 2 (Hi square test). The average RQ values, as well as the average scores for individual elements of psychomotor development (motor function, coordination, speech and sociability) according to the Brunet-L&eacute;zine scale, have been statistically significantly different between groups, at the age of 18 months (Student&#39;s T test). In Group 1 there were 57 (37.013%) children whose uncorrected RQ was below 90, while in Group 2 there were 31 (20,130%) children whose uncorrected RQ was below 90. The share of children with RQ below the average value for the calendar age is statistically significantly different between groups (Hi square test, p = 0.010). The relative risk for the suboptimal achievement in the Psychomotor Development Assessment (uncorrected RQ &lt;90) for Group 1 children was higher than in Group 2 (RR = 1.288; 95% CI 1.181 - 2.730). A statistically significant difference between Group 1 and Group 2 existed when the number of children with corrected RQ below 90 was compared (36 naspram 19 respectively, Hi quadrate test, p = 0.011). The relative risk for the suboptimal achievement on the Psychomotor Evaluation Test (corrected RQ &lt;90) for the children from Group 1 was higher when compared to children in Group 2 (RR = 1.895; 95% CI 1.139 &ndash; 3.152).<br />At the age of 24 months the average BW, body length and head circumference of subjects in both groups were not significantly different (Student&#39;s T test). The proportion of subjects with pathological ophthalmological findings did not statistically significantly differ between Group 1 and Group 2 (Hi square test). The proportion of subjects with pathological neurological findings did not statistically significantly differ between Group 1 and Group 2 (Hi square test). The average RQ values, as well as the average score values for individual elements for development evaluation (motor function, coordination, speech and sociability) according Brunet-L&eacute;zine scale, did not significantly differ between groups at the age of 24 months (Student&#39;s T test). In Group 1, there were 21 children (13.636%) whose uncorrected RQ was under 90, while in Group 2 there were 17 (11.049%) of children whose uncorrected RQ was below 90. The difference in the number of children with RQ below the average for the calendar age was not statistically significant (Hi square test, p = 0.488). A statistically significant difference did not exist even when the number of children with values of the corrected RQ below 90 in Group 1 and Group 2 (12 naspram 9 respectively, Hi quadrate test, p = 0.497) was compared.<br />Logistic regression analysis has shown that artificial conception, multiple pregnancy and IUGR are independent risk factors for lesser BW in a calendar age of 12 months. By logistic regression analysis, a statistically significant correlation between RQ values at 18 months of age and the following independent variables was obtained: artificially started pregnancy and multiple pregnancy. Group 1 and Group 2 patients did not significantly differ by any of the indicators of physical and psychomotor development at the age of 24 months.<br />The structure of morbidity in children, during the two-year follow-up period, did not differ significantly between groups. The only difference between the groups was found in the rates of acute respiratory infections at the age of 12 and 18 months (rate of infections was higher in Group 1), whose occurrence, however, was directly related to multiple pregnancies, or the number of sibling in the household.<br />Conclusion: The average age of mothers of children conceived by the IVF is higher than the average age of mothers of children who were conceived spontaneously. The structure of the morbidity of mothers of children who were artificially conceived and mothers of children born after spontaneous conception is the same, but the morbidity rate is higher in the mothers of children who were conceived by IVF. Pregnancies concieved by IVF almost exclusively ended by cesarean section. Premature rupture of the membranes is a common complication of IVF pregnancies. The rate of morbidity of prematurely born children conceived by ART is not higher than that of prematurely born children conceived naturally. The structure of morbidity in children from ART pregnancies was the same as in naturally conceived prematurely born children. The incidence of specific illnesses is the same, with the exception of bronchopulmonary dysplasia that occurs more frequently in children born from ART pregnancies, and retinopathy of prematurity that occurs more frequently in spontaneously conceived children. Maternal birth weight, intrauterine growth restriction, mother&#39;s age, maternal care, previous mother&#39;s chronic illness, mother&#39;s disease diagnosed during pregnancy, single and multiple pregnancies and PROM are potential risk factors for worse postnatal outcome in children from artificially initiated pregnancies. Risk factors for lower body weight in premature babies, at the age of 12 months, are: artificial conception, multiple pregnancy and intrauterine growth restriction. At the age of 12 months, prematurely born children from IVF pregnancies, have slightly worse (but not significantly lower) psychomotor achievements. At the age of 18 months, there is no difference in the indicators of physical development between prematurely born children who are artificially conceived and children born from spontaneous pregnancies. At the age of 18 months, prematurely born children from ART pregnancies have lower achievement on tests for assessing psychomotor development compared to prematurely born children from spontaneously initiated pregnancies. Risk factors associated with a poor performance on the psychomotor development assessment tests, in preterm infants, are an artificial conception of pregnancy and a multi fertile pregnancy. At the age of 24 months, there is no difference in the physical parameters between prematurely born children from ART and naturally conceived pregnancies. At the age of 24 months, there is no difference in the achievement on the test for the assessment of psychomotor development between children from ART and spontaneous pregnancies. At the age of 24 months, on the psychomotor development assessment, prematurely born children achieve the results consistent with their calendar age.</p>
538

"Avaliação dos resultados tardios de megaesôfago chagásico avançado operado pela técnica de esofagectomia com gastroplastia e operação de Serra Dória: estudo clínico, nutricional, endoscópico, anatomopatológico e avaliação da qualidade de vida" / Assessment of the late results of advanced Chagasic megaesophagus after two treatments esophagectomy with an associated gastroplasty and the Serra Dória procedure - clinical, nutritional, endoscopic, and anatomopathological study and assessment of the quality

Nakano, Simone Moraes Stefani 24 November 2005 (has links)
O objetivo deste trabalho foi avaliar comparativamente os resultados tardios da esofagectomia transdiafragmática com gastroplastia e da operação de Serra Dória para o tratamento do megaesôfago avançado. Foi realizado estudo coorte em 44 pacientes. O seguimento tardio no Grupo EG foi de 77,0 meses, e no Grupo SD de 62,1 meses. Utilizou-se interrogatório para queixas gastrointestinais, escalas de Schechter e de Visick, assim como dois questionários. Incluíram-se dados antropométricos, bioquímicos e endoscópicos. A satisfação com a cirurgia medida pela escala de Visick foi equivalente nas duas operações praticadas, sem diferenças estatísticas. Também nos questionários o perfil foi equilibrado. Houve maior a incidência de esofagite no grupo EG; Não houve diferenças significativas com relação à avaliação clínica, nutricional, histológica e de qualidade de vida / The objective of the paper was to carry out a comparative evaluation of the late results of a transdiaphragmatic esophagectomy with an associated gastroplasty and of the Serra Dória procedure, for the treatment of advanced megaesophagus. A cohort study was done on 44 patients. Late follow up for the EG Group was 77.0 months, and for the SD Group, 62.1 months. Several tools were used, such as a series of questions for gastrointestinal complaints, the Schechter and the Visick scales. Anthropometric data were included, as well as the biochemical and endoscopic parameters. Satisfaction with the surgery, as measured by the Visick scale, was equivalent in the two types of surgery, and no statistical differences were observed. There was a higher incidence of the esophagitis in the SD group; There were no significant differences with regards to clinical and nutritional evaluation, histology and quality of life
539

«Suivre le chemin». : la construction de l'identité politique des Awajún d'Amazonie péruvienne (1920-1980). / “Following the path”. The construction of the Awajún political identity in Peruvian Amazon (1920-1980)

Romio, Silvia 20 April 2017 (has links)
La scène socio-politique du Pérou contemporain est de plus en plus marquée par la présence et la forte activité des représentants de peuples indigènes d’Amazonie, et en particulier les Awajún du Haut Marañón qui se sont révélés être des acteurs politiques de premier plan. Si, aujourd’hui, c’est un fait connu que les anciens guerriers « réducteurs de têtes » sont devenus de fameux politiciens indigènes, maîtres de la parole et dans l’art de la diplomatie, reste à saisir la façon dont ce passage a été possible, perçu et pensé par les Awajún eux-mêmes. Afin de comprendre la relation établie entre la « pensée indigène » et la question du « politique », entre la construction de l’individu et la formation des « dirigeants politiques », on retrace ici les premières étapes de l’histoire « moderne » du Haut Marañón. Adoptant une perspective pluridisciplinaire, associant observation ethnographique et études politiques, cette recherche s’appuie avant tout sur les récits et discours d’anciens leaders indigènes, protagonistes des événements qui ont conduit à la fondation des premières organisations ethno-politiques awajún. Les récits mythiques, les souvenirs, les récits de guerre et les formes narratives acquises à l’extérieur se mêlent pour constituer les axes discursifs de la reconstruction de l’histoire qui, entre 1920 et 1980, a conduit à la consolidation de deux nouvelles figures centrales de la vie politique indigène actuelle : le professeur bilingue et le « dirigeant politique ». En réalisant un voyage dans le temps, mobilisant faits historiques et expériences visionnaires, on cherchera à comprendre comment les anciens leaders réorganisent leurs expériences, quelle conception du « pouvoir » transmettent-ils et, finalement, de quelle façon se représentent-ils eux-mêmes comme les « hommes forts » des temps modernes. / The socio-political scenario of contemporary Peru is more and more characterized by the presence and activism of indigenous people representatives. In particular, the Awajún of Alto Marañón emerged as leading political actors. Although today is evident that the ancient “head- shrinkers" warriors have become famous indigenous politicians, masters in the art of diplomatic talk, it is still unknown how the Awajún conceived and perceived this transition. In order understand the relationships between the "indigenous thought" and the question of "politics", the construction of "individuals” and the formation of "political leaders", we show the first stages of the "modern" history of the Alto Marañón. We adopt a multi-disciplinary approach bringing together ethnographic observation and political studies. The ancient indigenous leaders have been key players of the events that led to the foundation of newborn Awajún ethno-political organizations. Their narratives and discourses are the core of this work. The myths, memories, war stories, and non-traditional narrative forms come together and compose the discourse axis for the historical reconstruction that, between 1920 and 1980, resulted in the establishment of two novel fundamental figures of the actual indigenous political life: the bilingual professor and the “political leader”. Through a journey in time, which draws both from historical and visionary experiences, we will try to understand how the ancient leaders are currently re-organizing their experiences, which conceptions of "power" are they transmitting and, ultimately, how they represent themselves as the "strong men" of modern times.
540

Evaluation of a Mobile Health Intervention to Improve Anti-Retroviral Treatment Retention in South Africa

Jaffer, Ambereen 01 January 2015 (has links)
South Africa has one of the highest HIV prevalence rates globally, with nearly 2.5 million people accessing antiretroviral treatment (ART) at the end of 2013. Retaining patients on ART has become a major problem in this country. When patients no longer show up for ART for unknown reasons, they are considered lost to follow-up (LTF). LTF is the highest contributor to ART attrition. This study, guided by the health belief model, evaluated the effectiveness of a technology-based, mobile health (mHealth) appointment reminder intervention on LTF among patients accessing ART services. The study ascertained differences in 6- and 12-month LTF rates between patients enrolled in the mHealth intervention (n = 832) and those in the standard of care comparison group (n = 918). A quantitative, retrospective cohort approach was used to answer the research questions using binary logistic regression analyses. The mHealth intervention was found to be significantly linked to lower likelihood of 6- and/or 12-month LTF among patients. There were 2 other key findings: a positive correlation between pregnancy and LTF, and a positive correlation between viral load increases and LTF. This study added evidence to the existing literature on the effectiveness of using mHealth-based interventions to improve HIV/AIDS care. Based on these findings, professionals should pay special attention to pregnant women and those clients with increasing viral loads to ensure they are not LTF. Positive social change that may result from this study is better health outcomes for patients on ART due to reduced risk of HIV related complications and other illnesses. This awareness would improve the lives of the patients, and positively impact their families, communities, and ultimately the global community, by reducing the overall impact of HIV disease.

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