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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.
241

Avaliação da eficácia de programa de terapia sequencial de antimicrobiano em hospital oncológico / Evaluation of effectiveness of a program of sequential antimicrobial therapy in an oncology hospital

Zacchi, Marianne Amada 22 November 2016 (has links)
INTRODUÇÃO: Tem havido um crescente interesse em desenvolver programas para oferecer cuidados em casa para as condições que têm sido tradicionalmente tratadas nos hospitais, impulsionado por uma série de fatores, incluindo considerações de custo, a preferência do paciente e o aumento do risco de infecções adquiridas no hospital. As infecções são uma importante causa de internação e os antimicrobianos estão entre os fármacos mais comumente prescritos, o uso inadequado e disseminado está associado ao aparecimento de patógenos resistentes. Na oncologia os pacientes constituem um grupo sob especial risco de infecções. Estudos específicos sobre conversão de antimicrobianos em oncologia não são facilmente encontrados na literatura. OBJETIVO: Avaliar a eficácia do protocolo de um programa de terapia sequencial de antimicrobiano em hospital referência em oncologia. MÉTODO: Estudo retrospectivo de avaliação de intervenção, realizado em internação de um instituto de alta complexidade em oncologia, no período de maio de 2011 a maio de 2012, com etapa observacional pré-intervenção, e etapa de intervenção com aplicação do protocolo de terapia sequencial, onde ocorre a substituição do mesmo antimicrobiano de via intravenosa para a via oral. RESULTADOS: Foram incluídos 889 pacientes, 357 no período pré-intervenção e 532 no período de intervenção. Não houve diferença estatisticamente significativa na proporção de trocas entre os grupos pré-intervenção e intervenção, 33,61% e 37,59% respectivamente (OR 1,19, IC95% 0,90-1,58, p 0,23). Porém houve diferença para uso de levofloxacino, com maior chance de troca no grupo de intervenção (OR 2,94, IC95% 1,58-5,58, p 0,008). A neoplasia de mama como diagnóstico oncológico também foi associada a maior chance de troca (OR 2,10 IC95% 1,04-4,23, p 0,04). CONCLUSÃO: A implementação de protocolo de um programa de terapia sequencial em pacientes oncológicos em regime de internação não demonstrou impacto na troca de antimicrobiano IV para VO. Entretanto, resultou em maior chance de troca quando aplicada nos casos do uso de levofloxacino e naqueles cujo diagnóstico oncológico era neoplasia de mama / INTRODUCTION: There has been a growing interest in developing programs to provide home care for some conditions that have traditionally been treated in hospitals due to a number of factors, including cost considerations, the patient\'s preferences and the increased risk of infections acquired in the hospital. Infections are a major cause of hospitalization and the antimicrobials are among the most commonly prescribed drugs, their improper and widespread use is associated with the emergence of resistant pathogens. Oncology patients constitute a group at particular risk of infections. Specific studies on conversion of antimicrobial agents in Oncology are not easily found in the literature. OBJECTIVE: to evaluate the effectiveness of a program of sequential antimicrobial therapy in an Oncology hospital. METHOD: Retrospective study of intervention evaluation, conducted in hospitalized patients in an Oncology Institute from May 2011 to May 2012, with an observational pre-intervention step as well as a step of intervention with application of sequential therapy protocol, where the same antimicrobial is administered orally instead of via IV. RESULTS: Eight hundred and eighty-nine patients were included, 357 in the pre-intervention phase and 532 in the intervention phase. There was no statistically significant difference in the proportion of changing between the pre-intervention and intervention groups, 33.61% and 37.59% respectively (OR 1.19, IC95% 0.90-1.58, p 0.23). But there was difference for the use of levofloxacin, with greater chance of switching in the intervention group (OR 2.94, IC95% 1.58-5.58, p 0.008). The breast cancer diagnosis was also associated with greater chance of switching (OR 2.10 IC95% 1.04-4.23, p 0.04). CONCLUSION: The implementation of a protocol of a sequential therapy program in oncology patients in inpatient regime showed no impact on antimicrobial switch from IV to VO. However, it resulted in higher chance of switch when applied in cases of use of levofloxacin and in those whose cancer diagnosis was breast neoplasm
242

Avaliação do treino com estímulos discriminativos e condicionados sobre a autoadministração endovenosa de morfina em ratos / Discriminative and conditioned stimuli training evaluation on intravenous self-administration of morphine in rats

Serna, William Eduardo Patarroyo 28 July 2014 (has links)
Pesquisas com drogas de abuso têm mostrado consistentemente que a apresentação de estímulos ambientais associados ao uso destas substâncias pode induzir comportamentos de busca e autoadministração das mesmas. Existe a hipótese de que o controle que estímulos ambientais adquirem sobre comportamentos de autoadministração e busca por drogas de abuso poderia ser influenciado tanto pela forma de administração da droga, autoadministração (administração ativa) ou heteroadministração (administração passiva), quanto pela contingência (operante ou respondente) em que a droga foi associada com tais estímulos. Foram formados trios compostos por um sujeito de cada grupo (CONT, ACOP e VEÍC) e realizados dois experimentos. Inicialmente os sujeitos de cada trio foram acoplados por meio de caixas experimentais separadas e expostos a tentativas discretas de apresentação dos estímulos luminosos, S1 e S2, simultaneamente. Como consequência do girar a roda operante na presença de S1 por um integrante do grupo CONT, este recebia uma infusão endovenosa de morfina (0,75 mg/kg), e simultaneamente os animais acoplados no trio recebiam uma infusão de morfina na mesma dose (grupo ACOP) ou de veículo (grupo VEÍC). Posteriormente, os sujeitos de todos os grupos foram treinados a pressionar uma barra por infusões endovenosas de morfina, sem contingência discriminativa programada alguma. Para esta fase, no experimento 1, S2 esteve presente durante as sessões experimentais, porém no experimento 2, nenhum S foi apresentado. Finalmente, os estímulos S1 e S2 foram apresentados em tentativas discretas, em condições de extinção. Os resultados mostram que, durante a extinção, o desempenho dos animais do grupo CONT, mas não os dos grupos ACOP e VEÍC, foi condizente com o treino recebido inicialmente (com 80% ou mais de respostas na barra em presença de S1), indicando que foi estabelecido controle discriminativo sobre a autoadministração de morfina no treino sob a contingência operante, mas não sob a respondente. Estes resultados sugerem que comportamentos de autoadministração e busca por drogas de abuso são influenciados tanto pela forma de administração da droga, quanto pelo tipo de contingência em que uma droga é associada com estímulos ambientais / Drug abuse research has consistently shown that presentation of a drug associated with environmental stimuli can induce drug-seeking and drug-administration behaviors. It has been hypothesized that stimuli control over drug-seeking and self-administration behaviors could be influenced by drug administrations nature, self-administration (active administration) or hetero-administration (passive administration), and also influenced by the drug-stimuli association contingency (operant or respondent). Animals were exposed to right jugular vein catheterization procedure. Groups Contingent (C), Yoked (Y) and Toked Saline (YS) were formed randomly after recovery. Yoked triads were formed with one subject from each group and two experiments were executed. Initially a discriminative training (light stimuli S1 and S2 discrete trials) was presented to triads. Each time C S group member turned an instrumental wheel in presence of S1, simultaneously, an intravenous morphine infusion (0.75 mg/kg) were administrated to that subject and yoked Y group member, as well as an intravenous saline infusion was administrated to yoked YS group member, in every triad. Afterward all subjects were individually trained to lever-press for an intravenous morphine infusion with no discrimination contingency programed. In this phase, S2 was presented through sessions in Experiment 1, while in Experiment 2 no S were presented. After achieving response stability, subjects were exposed to extinction sessions. Stimuli S1 and S2 discrete trials were presented but no consequences were programed for bar-press responses. Results show that only C groups performance was consistent with the previously received discriminative training (80% or more of bar-press responses in S1 presence) during extinction sessions, indicating that an operant training, but not a respondent training, successfully established morphine self-administration discriminative control. These results suggest that self-administration behaviors are in fact influenced by drugs administration nature and also by the drug-stimuli association contingency
243

Efeito de emulsão lipídica parenteral composta por mistura de triglicérides de cadeia média e óleos de soja, oliva e peixe sobre a migração e fagocitose de leucócitos de ratos / Effect of parenteral lipid emulsion containing mixture of medium-chain triglycerides and soybean, olive and fish oils on leukocytes migration and phagocytosis in rats

Campos, Letícia de Nardi 04 September 2007 (has links)
INTRODUÇÃO: Emulsões lipídicas parenterais (EL) contendo óleo de peixe podem modular favoravelmente a resposta inflamatória e manter ou promover a resposta imunológica, mas há dados insuficientes sobre seu impacto em funções de células da imunidade inata. OBJETIVO: Verificar o efeito da administração endovenosa de EL composta por mistura de triglicérides de cadeia média e óleos de soja, oliva e peixe sobre a migração e fagocitose de leucócitos de ratos, em comparação à EL composta por mistura física de triglicérides de cadeia média e cadeia longa - TCM/TCL, suplementada ou não com óleo de peixe (OP). MÉTODOS: Ratos (Lewis) isogênicos (n=40) foram submetidos à cateterização da veia jugular externa para acesso parenteral. Os animais foram randomizados em quatro grupos, de acordo com sua infusão endovenosa: grupo SMOF: EL contendo 30% de óleo de soja (TCL), 30% de TCM, 25% de óleo de oliva e 15% de OP; grupo TCM/TCL: EL contendo TCM e TCL (1:1 v/v); grupo TCM/TCL/OP: EL composta por TCM/TCL com adição de OP (8:2 v/v); grupo SF: solução fisiológica. Um grupo de animais sem cateterismo venoso também foi desenvolvido (CO-NC). No quinto dia de experimento e após injeção de carvão coloidal pela veia caudal, amostras de sangue e tecido (fígado, pulmão e baço) foram coletadas para análise quimiotática de neutrófilos (câmara de Boyden adaptada) e quantificação do número de macrófagos fagocitantes do carvão coloidal (imunohistoquímica). Os dados foram analisados por ANOVA e pós-teste de Tukey. RESULTADOS: SMOF não alterou a quimiotaxia e fagocitose nos leucócitos estudados. TCM/TCL e TCM/TCL/OP aumentaram o número de macrófagos fagocitantes do fígado e pulmão e somente TCM/TCL/OP apresentou aumento no número de macrófagos fagocitantes no baço (p<0,05). CONCLUSÕES: 1) Emulsões lipídicas, independente de sua composição, não influenciaram a quimiotaxia de neutrófilos; 2) Emulsão lipídica composta por mistura de triglicérides de cadeia média e óleos de soja, oliva e peixe apresentou efeito neutro sobre a quimiotaxia, migração espontânea de neutrófilos e recrutamento de monócitos no fígado, pulmão e baço; 3) Emulsão lipídica de mistura física de triglicérides de cadeia média e cadeia longa estimulou o recrutamento de monócitos, com aumento do número de macrófagos fagocitantes no fígado e pulmão; 4) Emulsão lipídica de mistura física de triglicérides de cadeia média e cadeia longa enriquecida com emulsão lipídica de óleo de peixe, estimulou o recrutamento de monócitos, com aumento do número de macrófagos fagocitantes no fígado, pulmão e baço. / RATIONALE: Parenteral lipid emulsions (LE) with fish oil could modulate inflammatory response and promote or maintain immunologic response, but there are insufficient data about the impact on innate immunity cells functions. AIM: To evaluate the effects of endovenous infusion of LE containing mixture of medium-chain triglycerides and soybean, olive and fish oils on leukocytes migration and phagocytosis in rats, compared to a physical mixture of medium and long-chain triglycerides - MCT/LCT LE supplemented or not with fish oil (FO). METHOD: Isogenic Lewis rats (n=40) were submitted to jugular vein catheterization for parenteral access. The animals were randomized in four groups, according to their infusion: group SMOF: LE containing 30% of soybean oil (LCT), 30% MCT, 25% olive oil and 15% fish oil; group MCT/LCT: LE containing MCT and LCT (1:1 v/v); group MCT/LCT/FO: MCT/LCT LE enriched with fish oil based LE (8:2 v/v); group SS: saline. A non-surgical control (CO-NS) was also performed. In the 5th experimental day and after colloidal carbon injection in tail vein, blood and tissue (liver, lung and spleen) samples were collected for chemotaxis assay (adapted Boyden chamber) and colloidal carbon phagocyting-macrophages quantification (immunohistochemistry). ANOVA and Tukey post test were performed. RESULTS: SMOF LE didn?t influence leukocytes chemotaxis and phagocytosis. MCT/LCT and MCT/LCT/FO LE increased liver and lung resident phagocyting-macrophages number (p<0.05) and only in MCT/LCT/FO group, spleen resident phagocyting-macrophages number was increased (p<0.05). CONCLUSION: 1) Lipid emulsion, independently of composition, has no influence on neutrophils chemotaxis; 2) Lipid emulsion with a mixture of medium-chain triglycerides, soybean, olive and fish oils has neutral effect on neutrophil chemotaxis, random migration and monocyte recruitment to the liver, lung and spleen; 3) Lipid emulsion with a physical mixture of medium and long-chain triglycerides has stimulatory effect on monocyte recruitment, with increase of phagocyting-macrophages number in liver and lung; 4) Lipid emulsion with a physical mixture of medium and longchain triglycerides supplemented with fish oil, has stimulatory effect on monocyte recruitment, with increase of phagocyting-macrophages number in liver, lung and spleen.
244

Estudo dos efeitos do sevoflurano, propofol e sufentanil sobre o miocárdio na lesão de isquemia e reperfusão: estudo experimental em ratos / Study on the effects of sevoflurane, propofol and sufentanil on the myocardial ischemia and reperfusion injury: an experimental study in rats

Pasqualin, Rubens Campana 10 December 2010 (has links)
A interrupção do fluxo sanguíneo, ou isquemia, representa um dos problemas mais importantes de doenças cardiovasculares e cerebrovasculares enfrentados pelos médicos na sua rotina. Em relação ao miocárdio muitos estudos têm sido realizados nessa área e sabe-se que os anestésicos inalatórios e os opiódes podem protege as células cardíacas contra a lesão de isquemia e reperfusão. O propofol por sua parece não ter efeito de précondicionamento, porém apresenta características similares as ações antioxidantes da vitamina E, neutralizando os efeitos nocivos da produção de radicais livres. A associação de sevoflurano, sufentanil e propofol não está descrita na literatura. O objetivo deste estudo foi examinar a potencialização de cardioproteção entre sevoflurano, propofol e sufentanil por meio de análise do tamanho da área de infarto e inibição de apoptose em células miocárdicas. Ratos foram submetidos a 5 protocolos de pré-condicionamento diferentes e divididos em grupos agudos e crônicos. Os resultados indicaram que a associação destes anestésicos não conferiu proteção maior do que quando administrados isoladamente. Além disso, o sevoflurano conferiu proteção ao miocárdio no pós-infarto agudo e crônico. Já o propofol conferiu cardioproteção no pós-infarto crônico / The interruption of blood flow, or ischemia, represents one of the major problems of cardiovascular and cerebrovascular diseases seen by physicians in their routine. With respect to the myocardium, many studies have been conducted in this area and it is a known fact that inhaled anesthetics and opiates may protect cardiac cells against the ischemia and reperfusion injury. Propofol, in turn, seems to have no preconditioning effect, but it has similar characteristics to the antioxidant actions of vitamin E by neutralizing the harmful effects of free radical production. The combination of sevoflurane, sufentanil and propofol has not been described in literature. The aim of this study was to survey cardioprotection potentiation among sevoflurane, propofol and sufentanil by analyzing the size of infarct area and the inhibition of apoptosis in cardiac cells. Rats were subjected to five different preconditioning protocols and divided into acute and chronic groups. Results indicated that the combination of these anesthetics did not confer greater protection than when they were administered alone. Furthermore, sevoflurane conferred myocardial protection in the postacute and chronic infarction stage. Propofol, in turn, conferred cardioprotection in the chronic post-infarction stage
245

Avaliação da eficácia de programa de terapia sequencial de antimicrobiano em hospital oncológico / Evaluation of effectiveness of a program of sequential antimicrobial therapy in an oncology hospital

Marianne Amada Zacchi 22 November 2016 (has links)
INTRODUÇÃO: Tem havido um crescente interesse em desenvolver programas para oferecer cuidados em casa para as condições que têm sido tradicionalmente tratadas nos hospitais, impulsionado por uma série de fatores, incluindo considerações de custo, a preferência do paciente e o aumento do risco de infecções adquiridas no hospital. As infecções são uma importante causa de internação e os antimicrobianos estão entre os fármacos mais comumente prescritos, o uso inadequado e disseminado está associado ao aparecimento de patógenos resistentes. Na oncologia os pacientes constituem um grupo sob especial risco de infecções. Estudos específicos sobre conversão de antimicrobianos em oncologia não são facilmente encontrados na literatura. OBJETIVO: Avaliar a eficácia do protocolo de um programa de terapia sequencial de antimicrobiano em hospital referência em oncologia. MÉTODO: Estudo retrospectivo de avaliação de intervenção, realizado em internação de um instituto de alta complexidade em oncologia, no período de maio de 2011 a maio de 2012, com etapa observacional pré-intervenção, e etapa de intervenção com aplicação do protocolo de terapia sequencial, onde ocorre a substituição do mesmo antimicrobiano de via intravenosa para a via oral. RESULTADOS: Foram incluídos 889 pacientes, 357 no período pré-intervenção e 532 no período de intervenção. Não houve diferença estatisticamente significativa na proporção de trocas entre os grupos pré-intervenção e intervenção, 33,61% e 37,59% respectivamente (OR 1,19, IC95% 0,90-1,58, p 0,23). Porém houve diferença para uso de levofloxacino, com maior chance de troca no grupo de intervenção (OR 2,94, IC95% 1,58-5,58, p 0,008). A neoplasia de mama como diagnóstico oncológico também foi associada a maior chance de troca (OR 2,10 IC95% 1,04-4,23, p 0,04). CONCLUSÃO: A implementação de protocolo de um programa de terapia sequencial em pacientes oncológicos em regime de internação não demonstrou impacto na troca de antimicrobiano IV para VO. Entretanto, resultou em maior chance de troca quando aplicada nos casos do uso de levofloxacino e naqueles cujo diagnóstico oncológico era neoplasia de mama / INTRODUCTION: There has been a growing interest in developing programs to provide home care for some conditions that have traditionally been treated in hospitals due to a number of factors, including cost considerations, the patient\'s preferences and the increased risk of infections acquired in the hospital. Infections are a major cause of hospitalization and the antimicrobials are among the most commonly prescribed drugs, their improper and widespread use is associated with the emergence of resistant pathogens. Oncology patients constitute a group at particular risk of infections. Specific studies on conversion of antimicrobial agents in Oncology are not easily found in the literature. OBJECTIVE: to evaluate the effectiveness of a program of sequential antimicrobial therapy in an Oncology hospital. METHOD: Retrospective study of intervention evaluation, conducted in hospitalized patients in an Oncology Institute from May 2011 to May 2012, with an observational pre-intervention step as well as a step of intervention with application of sequential therapy protocol, where the same antimicrobial is administered orally instead of via IV. RESULTS: Eight hundred and eighty-nine patients were included, 357 in the pre-intervention phase and 532 in the intervention phase. There was no statistically significant difference in the proportion of changing between the pre-intervention and intervention groups, 33.61% and 37.59% respectively (OR 1.19, IC95% 0.90-1.58, p 0.23). But there was difference for the use of levofloxacin, with greater chance of switching in the intervention group (OR 2.94, IC95% 1.58-5.58, p 0.008). The breast cancer diagnosis was also associated with greater chance of switching (OR 2.10 IC95% 1.04-4.23, p 0.04). CONCLUSION: The implementation of a protocol of a sequential therapy program in oncology patients in inpatient regime showed no impact on antimicrobial switch from IV to VO. However, it resulted in higher chance of switch when applied in cases of use of levofloxacin and in those whose cancer diagnosis was breast neoplasm
246

Avaliação do treino com estímulos discriminativos e condicionados sobre a autoadministração endovenosa de morfina em ratos / Discriminative and conditioned stimuli training evaluation on intravenous self-administration of morphine in rats

William Eduardo Patarroyo Serna 28 July 2014 (has links)
Pesquisas com drogas de abuso têm mostrado consistentemente que a apresentação de estímulos ambientais associados ao uso destas substâncias pode induzir comportamentos de busca e autoadministração das mesmas. Existe a hipótese de que o controle que estímulos ambientais adquirem sobre comportamentos de autoadministração e busca por drogas de abuso poderia ser influenciado tanto pela forma de administração da droga, autoadministração (administração ativa) ou heteroadministração (administração passiva), quanto pela contingência (operante ou respondente) em que a droga foi associada com tais estímulos. Foram formados trios compostos por um sujeito de cada grupo (CONT, ACOP e VEÍC) e realizados dois experimentos. Inicialmente os sujeitos de cada trio foram acoplados por meio de caixas experimentais separadas e expostos a tentativas discretas de apresentação dos estímulos luminosos, S1 e S2, simultaneamente. Como consequência do girar a roda operante na presença de S1 por um integrante do grupo CONT, este recebia uma infusão endovenosa de morfina (0,75 mg/kg), e simultaneamente os animais acoplados no trio recebiam uma infusão de morfina na mesma dose (grupo ACOP) ou de veículo (grupo VEÍC). Posteriormente, os sujeitos de todos os grupos foram treinados a pressionar uma barra por infusões endovenosas de morfina, sem contingência discriminativa programada alguma. Para esta fase, no experimento 1, S2 esteve presente durante as sessões experimentais, porém no experimento 2, nenhum S foi apresentado. Finalmente, os estímulos S1 e S2 foram apresentados em tentativas discretas, em condições de extinção. Os resultados mostram que, durante a extinção, o desempenho dos animais do grupo CONT, mas não os dos grupos ACOP e VEÍC, foi condizente com o treino recebido inicialmente (com 80% ou mais de respostas na barra em presença de S1), indicando que foi estabelecido controle discriminativo sobre a autoadministração de morfina no treino sob a contingência operante, mas não sob a respondente. Estes resultados sugerem que comportamentos de autoadministração e busca por drogas de abuso são influenciados tanto pela forma de administração da droga, quanto pelo tipo de contingência em que uma droga é associada com estímulos ambientais / Drug abuse research has consistently shown that presentation of a drug associated with environmental stimuli can induce drug-seeking and drug-administration behaviors. It has been hypothesized that stimuli control over drug-seeking and self-administration behaviors could be influenced by drug administrations nature, self-administration (active administration) or hetero-administration (passive administration), and also influenced by the drug-stimuli association contingency (operant or respondent). Animals were exposed to right jugular vein catheterization procedure. Groups Contingent (C), Yoked (Y) and Toked Saline (YS) were formed randomly after recovery. Yoked triads were formed with one subject from each group and two experiments were executed. Initially a discriminative training (light stimuli S1 and S2 discrete trials) was presented to triads. Each time C S group member turned an instrumental wheel in presence of S1, simultaneously, an intravenous morphine infusion (0.75 mg/kg) were administrated to that subject and yoked Y group member, as well as an intravenous saline infusion was administrated to yoked YS group member, in every triad. Afterward all subjects were individually trained to lever-press for an intravenous morphine infusion with no discrimination contingency programed. In this phase, S2 was presented through sessions in Experiment 1, while in Experiment 2 no S were presented. After achieving response stability, subjects were exposed to extinction sessions. Stimuli S1 and S2 discrete trials were presented but no consequences were programed for bar-press responses. Results show that only C groups performance was consistent with the previously received discriminative training (80% or more of bar-press responses in S1 presence) during extinction sessions, indicating that an operant training, but not a respondent training, successfully established morphine self-administration discriminative control. These results suggest that self-administration behaviors are in fact influenced by drugs administration nature and also by the drug-stimuli association contingency
247

Uticaj primene opšte intravenske anestezije na kvalitet kolonoskopske procedure / The influence of administration of general intravenous anesthesia on the quality of colonoscopic procedure

Knežević Aleksandar 12 June 2018 (has links)
<p>Sve veća potreba za izvođenjem kolonoskopije u dijagnostičke ili terapijske svrhe nameće potrebu za usavr&scaron;avanjem ove endoskopske procedure. Izvođenje kolonoskopije u op&scaron;toj, intravenskoj anesteziji, moglo bi u značajnoj meri olak&scaron;ati njeno izvođenje, pobolj&scaron;ati podno&scaron;enje ove procedure od strane ispitanika i omogućiti otkrivanje većeg broja pacijenata sa potencijalno malignim bolestima debelog creva. Cilj ispitivanja je bio utvrditi da li primena op&scaron;te intravenske anestezije tokom kolonoskopije povećava broj totalnih kolonoskopija i skraćuje vreme intubacije cekuma, povećava broj viđenih patolo&scaron;kih procesa i smanjuje osećaj bola i učestalost neželjenih reakcija. Primena op&scaron;te intravenske anestezije značajno je povećala broj totalnih kolonoskopija u 94.3% ispitanika u odnosu na 78.7% totalnih kolonoskopija kontrolne grupe i skratila vreme intubacije cekuma, značajno je povećala broj viđenih patolo&scaron;kih promena u 46.7% ispitanika u odnosu na broj viđenih patolo&scaron;kih promena u 28.8% ispitanika kontrolne grupe i značajno je smanjila intenzitet bola i učestalost neželjenih reakcija. U kontrolnoj grupi ispitanika skalom bola nakon kolonoskopije ustanovljen je značajno veći intenzitet bola u poređenju sa ispitanicima ekperimentalne grupe. Na Likertovoj skali zadovoljstva ustanovljena je značajno bolja kontrola bola i lični stav lekara u ekperimentalnoj grupi, dok su poseta ustanovi i procedura, razumevanje procedure, tehnička ve&scaron;tina lekara, lični stav medicinskih sestara i drugog tehničkog osoblja značajno bolje ocenjeni u kontrolnoj grupi. Od svih ispitivanih faktora na zadovoljstvo obe grupe pacijenata značajno su uticali: način izvođenja procedure, bol, uočene patolo&scaron;ke promene i intubacija cekuma. U kontrolnoj grupi ispitanika između skale zadovoljstva i skale bola ustanovljena je značajna negativna korelacija. U kontrolnoj grupi se 80,1% pacijenata izjasnilo da bi ponovnu kolonoskopiju uradili u op&scaron;toj intravenskoj anesteziji u poređenju sa svim pacijentima eksperimentalne grupe koji ne bi menjali način izvođenja ponovne procedure. Primena op&scaron;te intravenske anestezije tokom kolonoskopije povećava broj totalnih kolonoskopija i uočenih patolo&scaron;kih promena, smanjuje učestalost i intenzitet neželjenih reakcija povećavajući zadovoljstvo pacijenata, &scaron;to bi prevashodno moglo imati značaja u skriningu karcinoma debelog creva. Potrebno je pro&scaron;iriti ispitivanje primene op&scaron;te intravenske anestezije u drugim endoskopskim procedurama kako bi bila uvedena u svakodnevnoj kliničkoj praksi.</p> / <p>An increasing need to perform colonoscopy for diagnostic or therapeutic purposes imposed the need for mastering this endoscopic procedure. Performing colonoscopy in general intravenous anesthesia could greatly ease the procedure, make it more comfortable for patients and it could enable detecting a higher number of patients with occult malignant diseases of the colon. The aim of this paper was to determine if the implementation of general intravenous anesthesia during colonoscopy increases the number of total colonoscopies and shortens the time of cecum intubation, increases the number of familiar pathological processes and decreases the sensation of pain as well as the frequency of side reactions. The implementation of general intravenous anesthesia has significantly increased the number of total colonoscopies in 94.3% of examined patients in relation to 78.7% of total colonoscopies of the control group and shortened the time of cecum intubation. It has significantly increased the number of familiar pathological changes in 46.7% of the patients in relation to the number of familiar pathological changes in 28.8% patients of the control group and significantly decreased pain intensity and the frequency of side reactions. A statistically greater pain intensity after colonoscopy was determined by the pain scale in the control group in comparison to the examinees of the experimental group. Likert satisfaction scale has shown that the experiment group assessed pain control and doctors&rsquo; opinion as significantly better, while the institution visits and the procedure, understanding the procedure, doctors&rsquo; technical skills, nurses&rsquo; and technical personnel&rsquo;s personal opinions were assessed as significantly better in the control group. Out of all the examined factors on the satisfaction of both groups, the following ones had a significant inluence: the way the procedure was done, the level of pain, detected pathological changes and cecum intubation. A significanlty negative correlation was determined between the scale of satisfaction and the scale of pain in the control group. 80.1% of the control group patients stated that they would undergo a general anesthesia colonoscopy again in comparison to all the patients of the experimental group who would not change the way the procedure was previously done. The implementation of general intravenous anesthesia in the course of colonoscopy increases the number of total colonoscopies and detected pathological changes, decreases the frequency and intensity of side-effects therefore it enhances patients&#39; sastisfaction, which could play a major role in colon cancer screening. It is necessary to extend the implementation of general intravenous anesthesia in other endoscopic procedures in order to introduce it in everyday clinical practice.</p>
248

Effets des immunoglobulines intraveineuses sur les cellules de l'immunité innée / Effects of intravenous immunoglobulin on innate immune cells

Galeotti, Caroline 12 March 2018 (has links)
Les IgIV, une préparation thérapeutique d'IgG normales, sont utilisées dans le traitement de diverses maladies auto-immunes et inflammatoires. Les mécanismes par lesquels les IgIV exercent une activité anti-inflammatoire ne sont pas complètement compris. Elles interagissent avec de nombreux composants du système immunitaire et modulent leurs fonctions. Des études récentes ont rapporté que l'hème oxygénase-1 (HO-1) joue un rôle important dans la régulation de la réponse inflammatoire dans un certain nombre de pathologies. Plusieurs agents thérapeutiques exercent des effets anti-inflammatoires grâce à l'induction de l'HO-1. Etant donné le rôle commun anti-inflammatoire de l'HO-1 et des IgIV, j'ai étudié l'implication de l'HO-1 dans les mécanismes d'action des IgIV. J'ai montré que les effets des IgIV ne sont pas associés à l'induction de l'HO-1, que ce soit dans des cellules de l'immunité innée comme les monocytes, cellules dendritiques ou macrophages, ou dans les reins et foie de souris avec une encéphalomyélite auto-immune expérimentale traitées par les IgIV. Des données récentes dans des modèles expérimentaux suggèrent que les IgIV induisent la sécrétion d’IL-4 des basophiles en augmentant l’IL-33 des cellules innées SIGN-R1+. J’ai rapporté que les IgIV induisent directement l’activation de basophiles pré-stimulés avec l’IL-3 alors que contrairement au modèle murin, l’IL-33 n’est pas indispensable. L’activation des basophiles par les IgIV est associée à l’expression augmentée de CD69 et la sécrétion d’IL-4, d’IL-6 et d’IL-8. Ces fonctions sont médiées par les fragments F(ab’)2 qui se lient à des IgE membranaires et activent la voie Syk. / Intravenous immunoglobulin (IVIG), a therapeutic normal immunoglobulin G preparation, is used in the therapy of various autoimmune and inflammatory conditions. The mechanisms by which IVIG exerts anti-inflammatory effects are not completely understood. It interacts with numerous components of the immune system including dendritic cells, macrophages, T and B cells and modulates their functions. Recent studies have reported that heme oxygenase-1 (HO-1) pathway plays an important role in the regulation of inflammatory response in several pathologies. Several therapeutic agents exert anti-inflammatory effects via induction of HO-1. Therefore, in view of common anti-inflammatory role exerted by both HO-1 and IVIG, I investigated if mechanisms of IVIG implicate HO-1. I show that anti-inflammatory effects of IVIG were not associated with an induction of HO-1 either in innate cells such as monocytes, dendritic cells and macrophages or in the kidneys or liver of experimental autoimmune encephalomyelitis. Recent data in experimental models suggest that IVIG induces IL-4 in basophils by enhancing IL-33 in SIGN-R1+ innate cells. I reported that IVIG directly induces activation of IL-3-primed basophils while unlike mice IL-33 was dispensable. The activation of basophils by IVIG was associated with enhanced expression of CD69 and secretion of IL-4, IL-6 and IL-8. These functions of IVIG are mediated via F(ab’)2 fragments that bind to basophil surface IgE and activate Syk pathway.
249

När återhämtar patienten sig snabbast? : Jämförlse mellan inhalationsanestesi och total intravenös anestesi. / When does the patient recover most rapidly? : Comparison between inhalations anesthesia and total intravenous anesthesia.

Allisson, Anna January 2010 (has links)
Generell anestesi kan ges som inhalationsanestesi eller total intravenös anestesi (TIVA). En förutsägbar anestesi med snabbt uppvaknande och bibehållen vakenhet är en högt önskvärd egenskap oavsett anestesiform. Det råder en klinisk och vetenskaplig diskussion om vilken anestesiform som ger snabbast tidig postoperativ återhämtning. syftet med studien var att jämföra patienters tidiga postoperativa återhämtning efter inhalationsanestesi respektive efter total intravenös anestesi (TIVA). Metoden var en litteraturstudie baserad på 15 vetenskapliga artiklar. Dessa analyserades utifrån frågeställningen: Vilken anestesiform som ger den snabbaste tidiga postoperativa återhämtningen. Det framkom en indelning av resultatet i tre kategorier: snabbare tidig postoperativ återhämtning efter inhalationsanestesi, lika lång tid till återhämtning efter inhalationsanestesi som efter TIVA samt snabbare tidig postoperativ återhämtning efter TIVA. Resultatet visade att inhalationsanestesi gav snabbast tdiig postoperativ återhämtning. Anestesisjuksköterskans handhavande, planering och erfarenhet påverkar patientens uppvakande. därför skulle vidare forskning istället jämföra dessa båda anestesiformer på ett annat sätt. Tiden kunde istället mätas från det att anestesisjukskäterskan extuberat patienten och till payienten verkar adekvat orienterad för att erhålla ett mer jämförbart resultat. / General anesthesia includes both inhalations anesthesia and total intravenous anesthesia (TIVA). After any anesthetic technique a de sirable characteristics is a predictably rapid emergence and sustained alertness. There is a clinical and scientific debate about which anesthetic technique who gives the most rapid emergence in the early postoperative recovery. The aim of this study was to compare patients early postoperative recovery after inhalations anesthesia and after total intravenous anesthesia (TIVA). The methods are based on 15 research articles. They where analysized from the questionnaire: which anesthetic technique gives the most rapid emergence in the early postoperative recovery. The results showed that inhalations anesthesia gave the most rapid emergence in the earky postoperative recovery. The nurse anesthetist handling, planning and experience affect the patients awakening. Therefore further research instead could compare these anesthetic techniques in another way. The time after the nurse anesthetist has extubate the patient until the patient is adequate orientated, could be measured to find a more comparable result.
250

Hypnosis for Relief of Pain and Anxiety in Children Receiving Intravenous Lines in the Pediatric Emergency Department

Maxym, Maya 04 March 2008 (has links)
Intravenous line placement is one of the most common procedures performed on children presenting to the Emergency Department. Anxiety about needles is widespread, and many children experience high levels of fear and/or pain with their IV line placements. Hypnosis is a behavioral intervention that shows significant promise for alleviating procedure-related pain and anxiety in children. Twenty-five developmentally normal, English-speaking children between the ages of five and fifteen who required IV line placement in the Pediatric Emergency Department at Yale-New Haven Childrens Hospital were randomized to receive either the standard of care or standard of care plus a brief hypnotic intervention. The groups were similar with regard to baseline demographic and socioeconomic status, previous experience with medical care, and presence or absence of chronic medical conditions. Childrens pre-procedural anxiety ratings on a 10cm visual analog scale (VAS) and expected procedural pain ratings by 10-point oucher and 10cm VAS were not significantly different between the groups. Children randomized to the hypnosis group reported less anxiety during the procedure (mean 5.0 vs 3.1, median 7.2 vs 2.2, p = 0.28) than children randomized to the standard of care group. Cases also had a decrease in anxiety from expected to actual of 1.6 on a 10cm scale, while those randomized to the control group had an increase from expected to actual anxiety of 1.1 (p=0.01). A smaller trend towards decreased pain in the hypnosis group was also present. As measured by VAS, cases had lower mean pain scores (3.4 vs 4.3) than controls. In a comparison of anticipated and actual pain scores between groups, the hypnosis group had a mean decrease of 0.8 on a 10cm VAS , while the control group had a mean increase of 0.5 (p=0.14). Recruitment of subjects is ongoing, but preliminary results suggest that hypnosis is effective for alleviating needle-related anxiety in children undergoing IV line placement and may be helpful for alleviating the pain of IV line placement as well.

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