Nos últimos anos, em função dos resultados negativos do HEMO Study e da elevada mortalidade na população dialítica, observou-se crescente interesse nosregimes de hemodiálise diária. A dose de diálise persiste como um dos elementos fundamentais na adequação do tratamento dialítico. Comparamos as doses de diálise em hemodiálise diária (90 minutos, 6 vezes / semana), com as doses em hemodiálise convencional (240 minutos, 3 vezes / semana), através da quantificação direta da diálise, do modelo de cinética de uréia e pelo Standard Kt/V de Gotch. A comparação foi feita para diferentes solutos (uréia, creatinina, fósforo, ácido úrico e ß2-microglobulina) e diferentes taxas de ultrafiltração / The recent efforts to improve dialysis outcome and the negative results from the HEMO Study have created great interest on alternative hemodialysis (HD) regimens. Dialysis dose persist fundamental to HD adequacy. However, parameters of adequacy have not been validated to Daily HD. We compared the dialysis dose of daily, high efficiency and flux HD (90 minutes, 6 times a week) with Conventional high flux HD (240 minutes, 3 times a week) by direct dialysis quantification, urea kinetics model and Gotch's stdKt/V. The comparison was made with urea, creatinine, phosphate, uric acid and ß2-microglobulin. We, also, analyzed the effect of different ultrafiltration rates on solute removal on Daily HD

É sabido que o paciente com doença renal crônica que tem um acompanhamento nefrológico precoce apresenta melhores condições clínicas e melhor prognóstico ao entrar em diálise. Porém o acompanhamento precoce pelo nefrologista melhora também o enfrentamento psíquico da doença e do tratamento? Foram estudados 39 pacientes com insuficiência renal estágio 5 no momento em que entravam em hemodiálise: 19 pacientes com acompanhamento por nefrologista 6 meses (Grupo 1) e 20 pacientes sem qualquer acompanhamento nefrológico prévio (Grupo 2). Todos os pacientes participaram de entrevista semiestruturada, composta por 17 questões abordando informações, crenças, expectativas e fantasias relacionadas à doença e ao tratamento. As respostas foram decompostas em categorias através da técnica da Análise de Conteúdo. Os dados demográficos e laboratoriais também foram coletados. A classe socioeconômica foi avaliada e classificada como baixa, média ou alta. Na análise estatística foram utilizados o teste de Fisher, do Quiquadrado, t de Student ou de Wilcoxon como apropriado e os resultados apresentados como média ± DP. O grupo 1 foi seguido por 26 ± 20 meses. Em ambos os grupos a maioria dos pacientes pertencia à classe baixa e era do sexo masculino. Os pacientes do grupo 2 eram mais jovens e apresentavam piores parâmetros laboratoriais (p <0,05). Também os aspectos psicológicos foram semelhantes nos 2 grupos: 63% dos pacientes do grupo 1 e 55% do grupo 2, disseram que tinham informações anteriores sobre a diálise; 42% no grupo 1 e 40% no grupo 2, disseram pouco entender o que o médico falava; 74% no grupo 1 e 85% no grupo 2 acreditam que seus rins voltariam a funcionar. Em ambos os grupos, 25% tinham expectativas ruins sobre voltar a trabalhar, e 60% sentiam atitudes negativas da família. O acompanhamento com o nefrologista minimiza as complicações clínicas e laboratoriais dos pacientes com insuficiência renal estágio 5, porém não é suficiente para minorar o impacto psicológico da entrada em hemodiálise. A atenção do nefrologista deve ir além dos aspectos clínicos. É necessário que o paciente seja adequadamente informado sobre sua doença e tratamento. Principalmente os pertencentes a uma classe social baixa como os estudados o apoio de uma equipe interdisciplinar pode ser de grande valia. / It is well known that patients with chronic renal failure (CRF) who are early on referred to a nephrologist have less clinical complications of the disease and a better outcome on chronic dialysis. But can early referral also improve the psychological burden of starting chronic dialysis? Thirty-nine ESRD patients initiating dialysis were studied: 19 patients had a Nephrology followup 6 months and 20 patients had no referral to nephrologist, starting dialysis on emergency situation. All patients participated in a semi-structured interview with 17 questions covering the perceived knowledge, beliefs, expectations and fantasies related to the disease and dialysis. The answers were decomposed in categories through the technique of content analysis. Demographic and laboratorial data at dialysis initiation were also collected. The socioeconomic position was evaluated and the patient was classified in one of 3 categories: low, middle or high. Categorical data were analyzed by Fishers or Chisquare statistical tests and continuous data by t or Wilcoxon tests as appropriate. The results are presented as mean ± SD. Group1 had been followed for 26 ± 20 months. In both groups the majority of patients were classified as low socioeconomic position and were males. Group 2 was younger and had worse laboratorial parameters (p<0.05). Also regarding the psychological aspects both groups were similar: 63% patients of group 1 and 55% of group 2 said they had no previous information about dialysis, and 42% in group 1 and 40% in group 2 said they didn\'t completely understand what the doctor said; 74% in group 1 and 85% in group 2 believed that their kidneys would work again; 25% in both groups had bad expectations about being able to work again , and 60% in both groups felt there was a negative attitude of the family toward them. Nephrology care of CRF patients mitigates clinical complications. However, on its own, it is not enough to minimize the psychological impact of the entering dialysis. Nephrology care must go beyond clinical care. The patients need to be well informed about the disease and treatment, especially patients like ours who came from low socioeconomic position. This kind of patients should be supported by an interdisciplinary team.

A síndrome do túnel do carpo é a neuropatia compressiva mais comum do membro superior. Cerca de 5% dos pacientes com insuficiência renal crônica submetidos à hemodiálise apresentam esta condição. A história clínica e o exame físico continuam sendo as ferramentas mais adequadas para seu diagnóstico. Testes complementares têm sido usados para auxiliar o diagnóstico e o controle de tratamento; dentre eles os de avaliação da sensibilidade cutânea. O PSSD (Pressurespecified sensory device ) consiste de aparelho que incorpora transdutor de pressão acoplado a um computador capaz de determinar os limiares cutâneos de sensibilidade à pressão no território do nervo mediano(superfície volar do índex). O objetivo do estudo foi determinar através do PSSD os limiares cutâneos de pressão no território do nervo mediano antes e depois do tratamento cirúrgico da síndrome. Para tanto, os pacientes foram divididos em dois grupos: Grupo 1: pacientes portadores de insuficiência renal crônica e submetidos à hemodiálise com síndrome do túnel do carpo. Grupo 2: pacientes com síndrome do túnel do carpo sem insuficiência renal. Foram avaliados com o PSSD as seguintes medidas: limiares cutâneos de pressão no teste de um ponto estático, no teste de um ponto dinâmico, no teste estático de dois pontos e no teste dinâmico de dois pontos. Houve evolução positiva no pós operatório(menor limiar) de todos os parâmetros avaliados pelo PSSD no grupo 1, enquanto no grupo 2 houve melhora significativa em todos os parâmetros, excetuando-se os do teste dinâmico de um ponto / Carpal Tunnel Syndrome is the most common compressive neuropathy on the upper limb. About 5% of the patients with chronic renal insufficiency who are treated with hemodialysis present carpal tunnel syndrome. Clinical history and physical examination remain the most adequate tools for the diagnosis. Evaluation of sensory thresholds can be used to complement those parameters. The PSSD (Pressurespecified sensory device) is a tool that incorporates a pressure transducer linked to a computer capable of measuring the cutaneous pressure thresholds referred by the patient. The aim of this study was to determine the values of pressure thresholds with the PSSD before and after treatment of carpal tunnel syndrome. The patients were divided in two groups: Group 1: patients with carpal tunnel syndrome associated to chronic hemodialysis. Group 2: patients with carpal tunnel syndrome without renal insufficiency. The following measurements were performed: static one point, moving one point, static two points and moving two points. The results showed better results in the post operative measurements in all parameters assessed in group 1, and improvements in all parameters with exception of the moving one point test in group 2

Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-01-13T14:49:36Z No. of bitstreams: 1 deniserocharaimundoleone.pdf: 3262987 bytes, checksum: 1d397a0c0064806a3c0e7268d284df0b (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-02T12:06:30Z (GMT) No. of bitstreams: 1 deniserocharaimundoleone.pdf: 3262987 bytes, checksum: 1d397a0c0064806a3c0e7268d284df0b (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-02-02T12:06:43Z (GMT) No. of bitstreams: 1 deniserocharaimundoleone.pdf: 3262987 bytes, checksum: 1d397a0c0064806a3c0e7268d284df0b (MD5) / Made available in DSpace on 2017-02-02T12:06:43Z (GMT). No. of bitstreams: 1 deniserocharaimundoleone.pdf: 3262987 bytes, checksum: 1d397a0c0064806a3c0e7268d284df0b (MD5) Previous issue date: 2016-08-16 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O objeto desta investigação foi o autocuidado terapêutico com o objetivo de compreender como as pessoas em tratamento pela diálise peritoneal domiciliar realizam as atividades de autocuidado terapêutico no domicílio, analisar as habilidades desenvolvidas por estas para a prática do procedimento, a fim de discutir as relações entre os usuários do Sistema Único de Saúde com os serviços de enfermagem, existentes na Rede de Atenção à Saúde e propor um modelo teórico substantivo que articule os achados desta pesquisa com o cuidado de enfermagem à luz da Teoria Geral de Enfermagem de Dorothea Orem. Realizou-se uma pesquisa qualitativa, em duas etapas, com o método da Teoria Fundamentada nos Dados. A primeira, de março a junho de 2015, visou identificar os participantes. Foi realizada no Serviço de Nefrologia de um hospital público de ensino de Minas Gerais, no qual foram identificadas 34 pessoas e avaliadas quanto à operacionalização para o autocuidado, pela aplicação de questionário estruturado e da escala Appraisal of Self Care Agency Scale Revised (ASA-R). A segunda etapa ocorreu de junho de 2015 a junho de 2016, incluindo 19 pessoas em diálise peritoneal, independentemente de terem ou não o autocuidado operacionalizado. Os dados foram coletados por meio de entrevista aberta, observação sistemática com registros do diário de campo, tanto na residência dos participantes quanto no Serviço de Nefrologia. Os participantes foram distribuídos em três grupos amostrais. No primeiro, incluíram-se dez pessoas, e, pela necessidade de se lançar mão de novas perguntas de pesquisa, conformou-se um segundo grupo amostral, com quatro pessoas. O terceiro grupo amostral, que visou à validação do modelo teórico substantivo, constituiu-se de nove pessoas, destas, quatro também participaram do primeiro grupo. Seguiu-se o critério de amostragem e saturação teórica. Para organização, codificação e interpretação dos dados empíricos, utilizou-se o programa OpenLogos®. A análise dos dados ocorreu mediante três tipos de codificação: aberta, axial e seletiva. Emergiram dos dados as seguintes categorias Convivendo com a Diálise Peritoneal (DP); Realizando a DP no domicílio e estando inserido na Rede de Atenção à Saúde do Sistema Único de Saúde (SUS); Utilizando a ocupação como forma de atenuar o convívio com a DP; Adaptando-se às necessidades: a estratégia de ação e interação; Ritual terapêutico: realização das atividades de autocuidado e Habilidades para o ritual terapêutico: o aprimoramento das habilidades da vida e motoras para o conviver com a DP, sendo esta a última a categoria central ao estudo. Durante todo o processo vivenciado pelos indivíduos que realizam a DP no domicílio como tratamento, percebeu-se que as habilidades cognitivas, sobretudo as habilidades de tomada de decisão, pensamento crítico e comunicação efetiva, associada à habilidade motora tornam-se imperativas para aqueles que querem realizar essa terapêutica. Desta forma, tem-se que a atuação do enfermeiro é determinante no processo de desenvolvimento e/ou aprimoramento nas habilidades para as atividades requeridas de autocuidado terapêutico e esta é fundamental para a promoção do bem-estar e do enfrentamento da diálise. / The object of this investigation was the therapeutic self-care in order to understand how people in treatment for home peritoneal dialysis perform the activities of therapeutic self-care at home, analyze the skills developed by them for the practice of the procedure, in order to discuss the relationship between users of the Unified Health System, with nursing services, existing in Health Care Network and propose a substantive theoretical model that articulates the findings of this survey with the nursing care in the light of Dorothea Orem nursing General Theory. We conducted a qualitative study in two stages, with the method of Data Grounded Theory. The first, from March to June 2015, aimed to identify the participants. It was held at the Nephrology Department of a public education hospital in Minas Gerais, in which 34 people have been identified and evaluated for operation for self-care, by applying a structured questionnaire and Appraisal of Self Care Agency Scale Revised (ASA-R). The second stage took place from June 2015 to June 2016 including 19 people on peritoneal dialysis, regardless of whether or not they operated self-care. Data were collected through open interviews, systematic observations with records of field diary, both in the residence of participants and in the Nephrology Service. The participants were divided into three sample groups. In the first there were included 10 people, and because of the need to explore new research questions, it was settled for a second sample group, with four people. The third sample group, which aimed at validating the substantive theoretical model, consisted of 09 people, from these four also participated in the first group. This was followed by sampling criterion and theoretical saturation. For the organization, coding and interpretation of empirical data it was used the OpenLogos® program. Data analysis was made through three types of coding: open, axial and selective. It emerged from the data the following categories: Living with Peritoneal Dialysis (PD); Performing PD at home and being inserted in the Network for Health Care of the Unified Health System (SUS); Using the occupation as a way to attenuate the association with PD; Adapting to the needs: a strategy of action and interaction; therapeutic ritual performing selfcare activities and skills for therapeutic ritual: the improvement of life and motor skills to live with the PD, being the last one the central category in the study. Throughout the process experienced by individuals performing PD at home as treatment, we realized that cognitive abilities, particularly the decision-making skills, critical thinking and effective communication, associated with motor skill becomes imperative for those who want perform this therapy. Thus, it is taken that the nurse's role is crucial in the process for the development and / or improvement of the skills for the required activities of therapeutic self-care and this is fundamental for the promotion of well-being and coping dialysis.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2018-03-28T10:55:06Z No. of bitstreams: 1 claudiovitorinopereira.pdf: 2007221 bytes, checksum: 6a75d12eda07ab1053308c2fda7735f6 (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2018-04-09T19:23:06Z (GMT) No. of bitstreams: 1 claudiovitorinopereira.pdf: 2007221 bytes, checksum: 6a75d12eda07ab1053308c2fda7735f6 (MD5) / Made available in DSpace on 2018-04-09T19:23:06Z (GMT). No. of bitstreams: 1 claudiovitorinopereira.pdf: 2007221 bytes, checksum: 6a75d12eda07ab1053308c2fda7735f6 (MD5) Previous issue date: 2018-01-19 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A doença renal crônica (DRC) apresenta-se como um problema de saúde pública em decorrência de sua prevalência e dos custos envolvidos no tratamento, bem como da alta taxa de morbimortalidade. Em sua fase mais avançada, ela necessita de uma terapia renal substitutiva. Estima-se que 111.303 pessoas se encontrem em tratamento dialítico por ano, destas, aproximadamente, 92,8% são submetidas à hemodiálise. O regime terapêutico hemodialítico engloba alterações no cotidiano, tais como o deslocamento aos centros de diálise e restrições alimentares e no convívio familiar. O presente estudo teve como objetivo avaliar a adesão ao regime terapêutico e qualidade de vida relacionada à saúde (QVRS) de pacientes renais crônicos em hemodiálise. Os padrões para a avaliação da adesão ao regime terapêutico foram estabelecidos pelo estudo The Dialysis Outcomes and Practice Patterns Study (DOPPS), são eles: restrição hídrica, restrição dietética, regime medicamentoso e terapia hemodialítica. Pacientes que apresentaram não conformidade em pelo menos um dos aspectos do tratamento foram considerados não aderentes à terapêutica. A análise dos dados foi realizada através dos testes Quiquadrado, Fischer, teste t, ANOVA e análise de regressão logística. A avaliação da QVRS foi realizada através do questionário Kidney Disease Quality of Life Short Form - KDQOL-SF. Foram analisados os componentes específicos da doença renal crônica (DRC) e componentes sumarizados físico (CSF) e mental (CSM). Utilizou-se para análise das variáveis os testes de Mann Whitney e Kruskal Wallis. Os resultados do presente estudo apontam que pacientes idosos, com diurese residual, parâmetro nutricional e hematológico adequados, com financiamento público das sessões de hemodiálise e cor da pele branca apresentaram maior probabilidade de serem aderentes (p<0,05). Indivíduos do sexo feminino, com menos de 60 anos, brancos, com baixo nível socioeconômico, que necessitam de acompanhante, em terapia hemodialítica por período menor que 5 anos e que possuem prescrição medicamentosa com 10 ou mais fármacos, com baixos níveis séricos de albumina e hemoglobina e não adesão à restrição hídrica e à terapia apresentaram piora na QVRS. Torna-se primordial que o plano terapêutico contemple a necessidade individual do paciente. A monitoração desses parâmetros, bem como busca para alcance dos padrões recomendáveis podem trazer melhorias em diversos aspectos da vida dos pacientes e subsidiar a prática clínica e o planejamento assistencial. Com isso, objetiva-se reduzir o percentual de hospitalização, gastos com saúde, mortalidade e fornecer melhorias nas condições de vida dos pacientes. / Chronic kidney disease (CKD) is a public health problem due to its prevalence and the costs involved in treatment, as well as the high morbidity and mortality rates. At its most advanced stage, it requires renal replacement therapy. It is estimated that 111,303 people are undergoing dialysis treatment per year, of which approximately 92.8% are undergoing hemodialysis. The hemodialysis treatment regime encompasses changes in daily life, such as travel to dialysis centers and restrictions on diet and family life. The present study aimed to evaluate adherence to the treatment regimen and health-related quality of life (HRQoL) of chronic renal patients on hemodialysis. The standards for assessing adherence to the treatment regimen were established by The Dialysis Outcomes and Practice Patterns Study (DOPPS), being: fluid restrictions, dietary restrictions, medication regimen, and hemodialysis therapy. Patients who showed noncompliance in at least one aspect of treatment were considered nonadherent to therapy. Data analysis was performed using the Chi-square test, Fischer's test, t-test, ANOVA, and logistic regression analysis. The HRQoL assessment was done using the Kidney Disease Quality of Life - Short Form - KDQOL-SF questionnaire. The specific components of chronic kidney disease (CKD), and the physical component summary (PCS) and mental component summary (MCS) were analyzed. The Mann Whitney and Kruskal Wallis tests were used for analysis of the variables. The results of the study indicate that elderly patients with residual diuresis, adequate nutritional and hematological parameters, with public funding for hemodialysis sessions, and with white skin color, were more likely to be adherent (p <0.05). Individuals who are female, under 60 years old, white, of lower socioeconomic status, who require a companion, in hemodialysis therapy for less than 5 years, and who are prescribed 10 or more drugs, with low serum levels of albumin and hemoglobin, and nonadherent to fluid restrictions and to therapy, presented a worsening HRQoL. It is therefore essential that the treatment plan addresses the individual needs of the patient. Monitoring these parameters, as well as striving to attain the recommended standards, can bring about improvements in various aspects of patients' lives, and aid clinical practice and care planning. With this, the aim is to reduce hospitalization rates, health expenses, mortality, and provide improvements in the living conditions of these patients.

Orientador: José Eduardo Tanus dos Santos / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-21T04:17:50Z (GMT). No. of bitstreams: 1 Marson_BernardoPavinato_D.pdf: 29131187 bytes, checksum: 6a16c5b929f162ad17cdee05fa1926ce (MD5) Previous issue date: 2012 / Resumo: A insuficiência renal crônica é uma complicação grave de diferentes doenças, como diabetes, hipertensão e glomerulopatias. Quando os rins entram em falência, é preciso substituir a função renal, terapia geralmente feita através de hemodiálise. A população de pacientes dependentes de hemodiálise, cujo número cresce de forma geométrica, está exposta a taxas extremamente elevadas de eventos cardiovasculares fatais e não fatais. Fatores de risco clássicos e específicos da uremia se somam conferindo alterações patológicas severas na parede dos vasos. A própria sessão de hemodiálise ativa a inflamação e induz aterogênese. A degradação da elastina e a apoptose das células musculares lisas evoluem para a mudança do fenótipo da camada média, que se expande reduzindo o lúmem em um processo de acentuada calcificação arterial. Alterações na atividade das metaloproteinases de matriz extracelular (MMPs) 2 e 9 e desequilíbrios com seus inibidores endógenos, os TIMPs, ajudam a compor este cenário ao estimular o remodelamento cardiovascular e reorganizar a matriz extracelular, permitindo a expansão tecidual e o depósito de cálcio. Os níveis circulantes de MMP-2 e -9 estão relacionados com maior severidade de doenças cardiovasculares na hemodiálise. Diversos polimorfismos genéticos foram associados com alterações na concentração e/ou atividade destas enzimas, e é possível que diferenças nas distribuições dos polimorfismos ajudem a discriminar indivíduos expostos a níveis plasmáticos mais elevados de MMP-2 e -9 tanto antes como após a sessão de hemodiálise. Os principais polimorfismos são: um polimorfismo de nucleotídeo único (SNP) (C-1562T) e um microssatélite (-90 CA14-24) na região promotora, e um SNP no exon 6 (A855T, Q279R) da MMP-9, e dois SNPs (C-1306T e C-735T) no promotor da MMP-2. Como estes polimorfismos também foram associados com diversas doenças, o propósito deste estudo foi avaliar se eles influem na concentração plasmática de MMP-2 e MMP-9 em pacientes submetidos à hemodiálise crônica, e se afetam o efeito que a sessão de hemodiálise tem sobre os seus níveis circulantes. Para atingir nosso objetivo, estudamos 98 pacientes com idades entre 18 e 65 anos e submetidos à hemodiálise há mais de 3 meses. Amostras de sangue venoso foram coletadas em dois momentos, antes do início e após o término da sessão de hemodiálise. As concentrações de MMP-2 foram determinadas por zimografia e as de MMP-9, TIMP-1 e TIMP-2 foram analisadas por ELISA. O DNA genômico foi extraído a partir do sangue total e amostras foram então genotipadas para os polimorfismos da MMP-2 e MMP-9. As frequências dos haplótipos da MMP-2 e -9 foram estimadas pelo programa PHASE. Nossos resultados mostraram que a sessão de hemodiálise reduz os níveis circulantes de MMP-2 e não altera o TIMP-2, ao passo que os níveis de MMP-9 e TIMP-1 se encontram aumentados ao final da sessão. Encontramos uma associação entre os genótipos que envolvem o alelo de análise T do polimorfismo C-735T e o haplótipo CT demonstrando níveis pré hemodiálise significativamente aumentados de MMP-2 (P= 0,0077 e P= 0,01, respectivamente), mas não de TIMP-2. Os genótipos da MMP-2 não alteram o efeito da sessão da hemodiálise, que reduziu a MMP-2 e o TIMP-2 independente de marcadores genéticos. Marcadores genéticos da MMP-9 mostraram estar associados a níveis maiores de MMP-9 após a hemodiálise: os genótipos CC e QQ (P= 0,0081 e P= 0,0415, respectivamente) e o haplótipo CLQ (P= 0,0012). As concentrações de TIMP-1 aumentaram significativamente após a hemodiálise nos genótipos HH e QR (P= 0,0375 e P= 0,0113, respectivamente) e no haplótipo CHR (P= 0,0008). Adicionalmente, marcadores genéticos da MMP-9 não alteraram os níveis basais de MMP-9 e TIMP-1. Estes achados sugerem que marcadores genéticos da MMP-2 e -9 interferem nos níveis circulantes destas proteases no contexto da hemodiálise / Abstract: Chronic renal disease is a serious complication which may occur in patients who suffer from a vast range of diseases, such as diabetes, hypertension and glomerulonephritis, among others. When the kidneys fail, it becomes necessary to substitute the renal function, which is usually made through hemodialysis. The population of patients that are dependent of hemodialysis are rapidly growing in number. These patients are exposed to extremely high rates of cardiovascular events. Both traditional and uremic specific factors account for severe pathologic alterations on the walls of the vessels. The session of hemodialysis itself stimulates inflammation and induces atherogenesis. The degradation of elastin and the apoptosis of smooth muscle cells eventually progresses to a change in the phenotype of the media layer, which expands, thus reducing the arterial lumen in a process of accelerated calcification. Alteration in the activity of the matrix metalloproteinases (MMPs) 2 and 9 and imbalancements with its endogenous inhibitors - the TIMPs - help to set the scenario for cardiovascular diseases by stimulating cardiovascular remodelling and reorganizing the extracellular matrix, allowing tissue expansion and calcium deposits. The circulating levels of MMP-2 and -9 are associated with greater severity of cardiovascular diseases on patients undergoing hemodialysis. Diverse genetic polymorphisms were associated with alterations on the concentration and with the activity of these enzymes, and it is possible that differences on the distribution of these polymorphisms may help to discriminate individuals exposed to increased plasmatic levels of MMP-2 and -9, both before and after hemodialysis. The main polymorphisms known are: one single nucleotide polymorphism (SNP) (C-1562T) and one microsatellite (-90 CA14-24) on the promoter region, and one SNP on exon 6 (A855G, Q279R) of MMP-9, and two SNPs (C-1306T and C-735T) on the promoter of MMP-2. These polymorphisms were also associated with a number of diseases. Our purpose was to study whether they influence the circulating levels of MMP-2 and -9 in patients undergoing hemodialysis, and whether they affect the levels of these proteases after hemodialysis. In order to reach our aim, we have studied 98 patients whose ages ranged between 18 and 65 years of age and who were undergoing chronic hemodialysis for at least 3 months. Venous samples were collected in two moments, before and after hemodialysis. The concentrations of MMP-2 were assayed with gelatin zymography, and MMP-9, TIMP-1, and TIMP-2 were analyzed with ELISA. Genomic DNA were extracted and samples were genotypied for MMP-2 and -9 polymorphisms. The haplotypic frequencies were analyzed by the PHASE software. Our results show that sessions of hemodialysis reduce the levels of MMP-2, however, it does not alter TIMP-2, while MMP-9 and TIMP-1 suffer an increase after the hemodialysis session. We found an association amidst the genotypes with the variant allele T on the SNP C-735T and on the haplotype CT showing elevated pre hemodialysis levels of MMP-2 (P= 0,0077 and P= 0,01, respectively), but not on TIMP-2. The MMP-2 genotypes do not modify the effect of a hemodialysis session. Genetic markers of the MMP-9 were associated with enhanced levels of MMP-9 after hemodialysis: the CC and QQ genotypes (P= 0,0081 and P= 0,0415, respectively) and the haplotype CLQ (P= 0,0012). The concentrations of TIMP- 1 increased significantly after hemodialysis on the genotypes HH and QR (P= 0,0375 and P= 0,0113, respectively) and on the haplotype CHR (P= 0,0008). Furthermore, genetic markers of the MMP-9 have not altered the basal levels of MMP-9 and TIMP-1. These findings suggest that the genetic markers of MMP-2 and -9 interfere on circulating levels of these proteases on the hemodialysis setting / Doutorado / Farmacologia / Doutor em Farmacologia

Made available in DSpace on 2014-08-20T13:49:45Z (GMT). No. of bitstreams: 1 Dissertacao Juliane.pdf: 1854057 bytes, checksum: 9ff54f2cb7361a7c201e50bc62d1305b (MD5) Previous issue date: 2012-10-26 / The care to users of renal replacement therapies involves a mobilization of skills that transcend the technical instituted knowledge because it imposes numerous restrictions on users. From the perspective of the individual from the rural context hemodialysis also means having to face geographical and cultural distance from health care. The study aimed to understand the meaning of hemodialysis treatment from the perspective of individuals from the rural context. This is a study of exploratory and descriptive qualitative approach. It corresponds to a subproject of research coordinated by Prof. Dr. Eda Schwartz, who received support from CNPq as Senior Fellow of the project "The daily life of rural families in the presence of chronic kidney disease: understanding based on Grounded Theory." The study was conducted in nephrology service of a teaching hospital and in their homes. Participants were three individuals, and four interviews with each were conducted, two on nephrology service and two in the homes of individuals, these ones recorded and later transcribed verbatim. The subjects agreed to participate in the study by signing the consent form. The research project was approved by the Ethics Committee under the number 1096/2011 and the Division of Continuing Education of the institution in which users were undergoing treatment. For data analysis we used the categorization of Grounded Theory described by Charmaz. As Theoretical Perspective we used Symbolic Interactionism. Study participants were three men, natives of Pelotas, Herval and Canguçu, aged 55 and 73 years of and schooling with the incomplete elementary school, two were married and had children and one was single. The conceptual categories were: being employed in the context of the field, sensing something wrong, moving to the city, allowing for new interactions, venturing transplant, or pretending not to do hemodialysis, holding a piece of land and seeing life through different eyes. The categories found were in agreement with other studies also hemodialysis patients, however the values formed in the interaction of these individuals from the perspective of the rural context remitted to better cope with the disease. Thus the land was the symbol that appeared in the speeches having more significance to character formation and conformed well as what remained of interaction with everyday life before the need for dialysis. The findings of this study have the potential to encourage health professionals, especially nurses, to improve their care practice. Since relevant issues as adherence to treatment is a reflection of the perspective of individuals about the disease and treatment, and those influenced by the contexts in which they arise. / O cuidado ao usuário de terapias renais substitutivas envolve uma mobilização de habilidades que transcende o saber técnico instituído, pois esses impõem inúmeras restrições aos usuários. Na perspectiva do indivíduo proveniente do contexto rural realizar hemodiálise significa também ter de o distanciamento geográfico e cultural da assistência a saúde. O estudo objetivou compreender o significado do tratamento de hemodiálise sob a perspectiva dos indivíduos provenientes do contexto rural. Trata-se de um estudo de abordagem qualitativa exploratória e descritiva, é uma dissertação de mestrado. Corresponde a um subprojeto da pesquisa coordenado pela Profª Dra. Eda Schwartz, que recebeu apoio do CNPq como Bolsista Sênior do projeto O cotidiano das famílias rurais na presença da doença renal crônica: compreensão baseada na Teoria Fundamentada em Dados . O estudo foi realizado no serviço de nefrologia de um hospital de ensino e no domicílio dos sujeitos. Participaram do estudo três indivíduos, sendo realizadas quatro entrevistas com cada um, duas no serviço de nefrologia e duas no domicílio dos indivíduos, sendo essas gravadas e posteriormente transcritas na íntegra. Os indivíduos aceitaram a participação no estudo mediante a assinatura do Termo Consentimento Livre Esclarecido. O projeto de pesquisa foi aprovado pelo Comitê de Ética com parecer sob o número 1096/2011 e pelo Setor de Educação Continuada da instituição em que os usuários realizavam tratamento. Para a análise dos dados utilizou-se a categorização da Teoria Fundamentada nos Dados descrita por Charmaz. Como Perspectiva Teórica empregou-se o Interacionismo Simbólico. Os participantes do estudo foram três homens, naturais de Pelotas, Herval e Canguçu, com idades entre 55 e 73 anos, com a escolaridade de ensino fundamental incompleto, dois eram casados e tinham filhos e um era solteiro. As categorias conceituais encontradas foram: sendo trabalhador no contexto do campo, sentindo uma coisa mal, mudando-se para a cidade, permitindo-se novas interações, aventurando-se no transplante, fazendo de conta que nem faz hemodiálise, mantendo um pedacinho de terra e vendo a vida com outros olhos. As categorias encontradas estavam de acordo com outros estudos realizados também com pacientes em hemodiálise, porém os valores formados na interação desses indivíduos na perspectiva do contexto rural os remeteram a um melhor enfrentamento da doença. Assim, a terra foi o símbolo que mais apareceu nos discursos tendo um significado de formação de caráter e conformou-se também como o que restou da interação com o cotidiano antes da necessidade da hemodiálise. Os achados do presente estudo tem o potencial para incentivar os profissionais da saúde, principalmente os enfermeiros, a melhorarem sua prática assistencial. Já que questões relevantes como a adesão ao tratamento são reflexo da perspectiva dos indivíduos sobre a doença e tratamento, sendo essas influenciadas pelos contextos de onde provêm.

This thesis was originally motivated by a curiosity about how historicity and culture forms understanding in activities in a work situation. I wanted to gather and structure some thoughts about what happens when scientific, formally educated, knowledge, which dominates in a traditional desk learning situation, is facing knowledge which is learned through practice in real work situations with complex technology. These contradictions, I believe, must be something we all experience every day, more or less consciously. A study could perhaps be done at any kind of activity or work. I chose a dialysis department and the work of dialysis nurses as an example. This turned out to be a good choice, since these two perspectives of understanding becomes quite clear in a setting with new technology, which, together with routines and treatment, is developing and changing constantly. Patients, nurses, doctors, patient wards, dialysis machines, water cleansing system, and so forth create a complex system. It is not possible to analyse this system, or even create anything meaningful for it, unless bringing in a perspective of time and culture, into the discussion. Historicity explains and forms work practice at the very same time, when the nurses have to create a standpoint and an understanding for the actions they have to take. Creating meaningful design into complex environments is not helped by aiming for a total understanding of the whole system. Instead, agents that form the change of understanding, behaviour and action may work as keys into the creation of new design.

No description available.

Hintergrund: Die Parodontitis (PA) ist eine Entzündung des Zahnhalteapparats und führt unbehandelt zu Zahnlockerung und Zahnverlust. Ein erhöhter systemischer Entzündungszustand, Wechselwirkungen zum Diabetes mellitus und Assoziationen zur Atherosklerose sowie kardiovaskulären Erkrankungen sind bekannt. Bei Dialysepatienten sind kardiovaskuläre Erkrankungen und Infektionen die Haupttodesursachen. Parodontitis als gut behandelbare Erkrankung könnte damit ein veränderbarer Risikofaktor der Mortalität bei Dialysepatienten sein. Der Zustand der terminalen Niereninsuffizienz bedingt eine beeinträchtigte, schlechtere Immunantwort auf Entzündungen und Infektionen. Malnutrition und das urämische Milieu führen ebenso zu einer Veränderung der Immunabwehr. Eine schlechte Mundhygiene und damit einhergehende vermehrt auftretende Entzündungen des Parodonts könnten den systemischen Entzündungszustand bei Dialysepatienten noch verstärken. Mehr kariöse und fehlende Zähne sind Ausdruck eines schlechten Gebisszustandes und führen zu ungenügender Kaufunktion. Auch hat die terminale Niereninsuffizienz Auswirkungen auf den oralen Gesundheitszustand wie z. B. Veränderungen der Mundschleimhaut, Xerostomie, Veränderungen der Zahnhartsubstanzen und des Kieferknochens. Diese können ihrerseits die Kaufähigkeit negativ beeinflussen und den Zustand der Malnutrition noch verstärken. Dialysepatienten verbringen viel Zeit an der Dialyse und legen häufig ein nicht so großes Augenmerk auf andere Gesundheitsfragen. Zielstellung: Die Arbeit untersuchte, ob Unterschiede in der Mund- und Zahngesundheit bei Dialysepatienten gegenüber einer Kontrollgruppe ohne terminale Niereninsuffizienz bestehen. Ebenso wurden Angaben zur Zahn- und Mundgesundheit bewertet. Ein Ziel der Arbeit war die Suche nach Assoziationsfaktoren für das Auftreten einer generalisierten Parodontitis. Die Frage nach dem Einfluss der Hämodialyse für das Vorliegen einer generalisierten Parodontitis bildete den Abschluss der Auswertungen. Methode: 72 Dialysepatienten (Dialysegruppe) des KfH-Nierenzentrums Chemnitz wurden während der Dialysesitzung untersucht. 147 Pattienten ohne Dialyse einer allgemeinzahnärztlichen Praxis bildeten die Kontrollgruppe. Die Untersuchungen hierzu erfolgten in der Praxis. Es wurden der Plaqueindex (PI), Gingivaindex (GI), die Sondierungstiefe (ST), der Attachmentverlust (AV) und der Decayed Missing Filled/Tooth-Index (DMFT-Index) bestimmt. Ein Fragebogen gab Auskunft über Demografie, Gesundheitsfragen, Mundhygieneverhalten und Medikation in beiden Gruppen. Die Datenanalyse erfolgte deskriptiv und im Gruppenvergleich. Eine multivariate logistische Regressionsanalyse diente der Ermittlung des Erkrankungsrisikos für eine fortgeschrittene generalisierte Parodontitis in Abhängikeit verschiedener Prädiktoren. Zur Datenauswertung wurde das Statistikprogramm BIAS für Windows°, Version 9.12 verwendet. Ergebnisse: Die Altersverteilung, der Raucherstatus und die Schulbildung waren in beiden Gruppen vergleichbar. Dialysepatienten wiesen mehr Rentner auf (79 % vs. 44 %; p < 0,0001). In der Dialysegruppe nahmen mehr Männer (74 % vs. 52 %; p < 0,003) an den Untersuchungen teil. Dialysepatienten hatten signifikant mehr allgemeine Erkrankungen, wie Hypertonie (82 % vs. 35 %; p < 0,0001), Diabetes mellitus Typ II (33 % vs. 11 %; p = 0,0002) andere Herzerkrankungen als Herzinfarkte (40 % vs. 8 %; p < 0,0001), Lebererkrankungen (10 % vs. 0,5 %; p < 0,004) und nahmen häufiger und mehr Medikamente (97 % vs. 58 %; p < 0,0001) ein. Die Ursache für die chronische Niereninsuffizienz deckt sich mit den Angaben in der Literatur (u. a. 22 % Glomerulonephritis, 15 % diabetische Nephropathie, 11 % Zystennieren und 9 % vaskuläre Nephropathien). Dialysepatienten hatten einen höheren Anteil kariöser (1,1 vs. 0,2; p < 0,001) und fehlender Zähne (10 vs. 7; p < 0,009). Der Anteil gefüllter Zähne war in der Kontrollgruppe größer (9 vs. 5; p < 0,001). Mittlerer PI, GI und AV waren in der Dialysegruppe signifikant höher bei vergleichbaren Werten für die ST. Dialysepatienten hatten mehr Zähne mit einem AV von > 5 mm (Median 21 %) im Vergleich zur Kontrollgruppe (Median 13 %; p = 0,011). Die Patienten der Dialysegruppe zeigten häufiger (44 % vs. 29 %; p < 0,03) eine generalisierte PA (> 30% der Zähne mit einem AV > 5 mm). Nach anamnestischen Angaben war eine PA bei den Dialyseepatienten öfter bekannt (82 % vs. 40 %; p < 0,001), wurde jedoch signifikant seltener behandelt (14 % vs. 49 %, p < 0,001). Auch das Auftreten von Zahnfleischbluten bemerkten sie häufiger (80 % vs. 60 %; p < 0,003). Die Häufigkeit des Zähneputzens sowie der Grund für einen Zahnarztbesuch unterschieden sich nicht. In der Kontrollgruppe wurden mehr Hilfsmittel zur Zahnreinigung sowie häufiger ein Recall genutzt. Bei 69 % der Dialysepatienten ergab sich keine zahnärztliche Therapieänderung nach Bekanntwerden der Dialysepflichtigkeit und nur 15 % der Dialysepatienten wurden Prophylaxemaßnahmen angeboten. Univariat sind in beiden Gruppen der PI, GI und das Alter signifikante Assoziationsfaktoren für den prozentualen Anteil der Zähne mit einem AV > 5 mm. In der Kontrollgruppe hatten zusätzlich Männer und Diabetiker einen signifikant höheren Anteil betroffener Zähne. Diese Assoziation konnte bei Dialysepatienten nicht beobachtet werden. Ein hoher PI, längere Dialysepflichtigkeit, schlechteres Kt/V und geringerer BMI waren bei HD-Patienten in der multiplen logistischen Regressionsanalyse signifikante Risikofaktoren für das Auftreten einer generalisierten PA. In der Kontrollgruppe erwiesen sich Alter, Rauchen und der GI als entsprechende Risikofaktoren, wobei der Hilfsmittelgebrauch die Signifikanz knapp verfehlte. In der multiplen logistischen Regressionsanalyse unter Einschluss aller Probanden in die Analyse und ohne Berücksichtigung der Zahnzahl zeigte sich ein erhöhtes Risiko für eine generalisierte PA bei Rauchern, einem hohen GI, höherem Alter und bei längerer Dialysepflichtigkeit (> 3 Jahre) verbunden mit niedrigerem Kt/V (< 1,6). Unter Berücksichtigung der Zahnzahl waren Rauchen, das Alter, eine geringere Zahnzahl, das männliche Geschlecht und ebenso eine längere Dialysepflichtigkeit (> 3 Jahre) verbunden mit niedrigem Kt/V (< 1,6) die entscheidenden Prädiktoren. Schlussfolgerungen: Die Ergebnisse der Untersuchungen lassen sich so zusammenfassen, dass Dialysepatienten eine schlechtere Mundhygiene, mehr fehlende und kariöse Zähne sowie einen schlechteren Parodontalstatus aufwiesen. Sie litten häufiger an einer generalisierten PA. Es ergaben sich Hinweise, dass eine längere Dauer der Dialysepflichtigkeit sowie eine schlechtere Dialyseeffizienz das Auftreten einer generalisierten PA begünstigten. Auf Grund der hohen Rate generalisierter Parodontitiden unter den Dialysepatienten wäre ein erhöhter systemischer Entzündungszustand denkbar. Malnutrition, die veränderte Immunantwort und die chronische urämische Intoxikation tragen zur Anfälligkeit gegenüber Entzündungen und Infektionen bei. Entzündungen sind eine Haupttodesursache unter Dialysepatienten. Die Parodontitis als gut behandelbare Erkrankung führt zur Verringerung des systemischen Entzündungszustandes. Somit könnte eine Parodontitistherapie den Entzündungszustand von Dialysepatienten positiv beeinflussen. Eine größere Beachtung seitens des zahnärztlichen Personals sollte die Verbesserung der Kaufähigkeit bei Dialysepatienten erlangen. Damit könnte eine mögliche Ursache der Malnutrition behoben werden. Dialysepatienten sind potenzielle Empfänger eines Nierentransplantats. Gesunde orale Strukturen sind Voraussetzungen zur Vermeidung von Infektionen und einem Transplantatversagen. Daraus ergibt sich die Notwendigkeit der Verbesserung der Behandlung von Dialysepatienten, insbesondere der Prophylaxe und parodontalen Therapie. / Background: Periodontitis is a chronic, destructive infection of the periodontium caused by periodontopathogenic bacteria of the oral biofilm. It results in inflammation and irreversible destruction of periodontal tissue. Remaining untreated, periodontitis causes tooth loss in the long run. The increase of systemic inflammation due to local periodontal inflammation is a biological plausible background of well-known periodontitis interactions with other chronic diseases such as diabetes or atherosclerosis and other cardiovascular diseases. The main causes of death for patients on haemodialysis are cardiovascular diseases and infections. Therefore periodontitis as a highly treatable disease could be a modifiable risk factor for the mortality in haemodialysis patients. On the other hand, terminal kidney insufficiency affects and can worsen the systemic inflammatory status as well as host immune reactions to infections. Additionally, malnutrition and the uraemic milieu contribute to a worse immune answer. Thus, the terminal kidney insufficiency could have some influence on the oral health status, like alteration of the mucosa, xerostomia, changes of dentin, enamel and jaw, and increased susceptibility to inflammation. These oral changes could themselves affect the mastication and the condition of malnutrition adversely. Patients on haemodialysis spend a lot of time on blood purification and do not focus their attention to other medical questions. The aim of the study was to determine, if there are differences in oral and teeth health between dialysis patients and a control group without kidney insufficiency. Predictors of the occurrence of generalized periodontitis should be analysed. Finally, the question should be answered, if there is an influence of haemodialysis on the susceptibility for generalized periodontitis. Methods: 72 dialysis patients of the KfH-Kidney Center Chemnitz were clinically examined, and 147 patients without dialysis from the own dental practice comprised the control group. The plaque index (PI), gingival index (GI), probing depth (ST), attachment loss (AV) and the DMF/T-Index were determined. A questionnaire allowed information about demographic conditions, medical history, oral hygiene habits and the medication of both groups. Data analyses included descriptive statistics, univariate comparison of means, correlation analysis as well as multivariate regression. The statistic programm Bias for windows° version 9.12 was used for statistical evaluation. Results: Age distribution, smoking status and education were similar in both groups. Of the dialysis group were retired (79% vs. 44%, p < 0.0001), and more men attended to the study (74% vs. 52%, p < 0,003). Dialysis patients suffered from more other diseases, such as hypertension (82% vs. 35%, p < 0.0001), diabetes mellitus type II (33% vs. 11%, p = 0.0002), other heart diseases than heart attack (40% vs. 8%, p < 0.0001), or liver diseases (10% vs. 0.5%, p < 0.004), and needed more drugs (97% vs. 58%, p < 0.0001). The causes of kidney insufficiency were comparable with the data in the literature (including 22% glomerulonephritis, 15% diabetic kidney disease, 11% polycystic kidneys and 9% vascular nephropathies). Dialysis patients had more decayed teeth (1.1 vs. 0.2, p < 0.001) and missing teeth (10 vs. 7, p < 0.009). Patients of the control group had more filled teeth (9 vs. 5, p < 0.001). Mean PI, GI and AV were significantly higher in the haemodialysis group (HD) compared to controls. However, the ST was comparable between the groups. A higher proportion of teeth of dialysis patients had an AV of > 5 mm (median 21% vs 13% in the control group, p = 0.011). HD-patients suffered more frequently from advanced generalized periodontitis (44% vs. 29%, p < 0,03). Generalized periodontitis (g-PA) was defined by at least 30% of the teeth with proximal AV of 5 mm or more. In the anamnesis a PA was more renowned among the HD-patients (82% vs. 40%, p < 0.001) but was less treated (49% vs. 14%, p < 0,001). These patients also observed gingival bleeding more often (80% vs. 60%, p < 0.003). There were no differences between the frequency of tooth brushing and the causes to go to a dentist. However, patients of the control group used other tools than tooth brush to clean teeth more often, and participated more frequently in maintenance programs. After dentist became known the necessity of dialysis, 57% of the patients did not receive changes in dental treatment, and only 15% of these patients were offered any prophylaxis. In the univariate analysis PI, GI and age were significant association factors for the percentage of teeth with AV > 5mm in both groups. In the control group, men and diabetics showed more frequently teeth with at least moderate periodontitis. But these could not be observed in the dialysis group. In the dialysis group the multiple logistic regressions analysis showed that a higher PI, longer time on dialysis, a worse Kt/V and a less BMI are independent, significant risk factors for a g-PA. In the control group age, smoking and GI are the risk factors for a generalized periodontitis. The multiple logistic regressions analysis of the complete study population revealed that smoking, GI, age and longer time on dialysis (> 3 years) together with a worse Kt/V (< 1,6) is associated with a higher risk for a generalized periodontitis. Including the teeth number in the model, smoking, age, less count of teeth, male gender and also longer time on dialysis and a worse Kt/V were the crucial predictors. Summary: Hemodialysis patients had a worse oral hygiene, less and more decayed teeth, worse periodontal conditions. Especially, they suffered more often from generalized periodontitis. There was some evidence that the time on dialysis and the efficiency of dialysis treatment has an influence on the extent and severity of a periodontitis. Due to the high frequency of generalized periodontitis, it is conceivable that in dialysis patients an increased systemic inflammation status is possible. Malnutrition, altered immune resistance and chronic uremic intoxication additionally contribute to vulnerability against inflammations and infections. Inflammations are a main cause for the high mortality of dialysis patients. Periodontitis is a well treatable disease reducing systemic inflammatory burden. Therefore, periodontitis therapy could affect the inflammatory status positively in these patients. Furthermore, dialysis patients need more attention of dental care providers to improve the ability to bite. Thereby, one cause of malnutrition could be removed. Dialysis patients are potential recipients of a kidney transplant. A healthy oral system is a well-known condition to avoid infection and transplant failure. Thus, the treatment of dialysis patients, especially the prophylaxis and periodontal treatments should be improved.