PURPOSE: To evaluate alanine aminotransferase levels before and after a hemodialysis session and to correlate these values with the hematocrit rate and weight loss during hemodialysis. PATIENTS AND METHODS: The serum alanine aminotransferase levels, hematocrit rate and body weight were measured and correlated before and after a single hemodialysis session for 146 patients with chronic renal failure. An receiver operating characteristic (ROC) curve for the serum alanine aminotransferase levels collected before and after hemodialysis was plotted to identify hepatitis C virus-infected patients. RESULTS: The mean weight loss of the 146 patients during hemodialysis was 5.3% (p < 0.001). The mean alanine aminotransferase levels before and after hemodialysis were 18.8 and 23.9 IU/, respectively, denoting a significant 28.1% increase. An equally significant increase of 16.4% in the hematocrit rate also occurred after hemodialysis. The weight loss was inversely correlated with the rise in both the alanine aminotransferase level (r = 0.3; p < 0.001) and hematocrit rate (r = 0.5; p < 0.001). A direct correlation was found between the rise in alanine aminotransferase levels and the hematocrit during the hemodialysis session (r = 0.4; p < 0.001). Based on the ROC curve, the upper limit of the normal alanine aminotransferase level should be reduced by 40% relative to the upper limit of normal if the blood samples are collected before the hemodialysis session or by 60% if blood samples are collected after the session. CONCLUSION: In the present study, significant elevations in the serum alanine aminotransferase levels and hematocrit rates occurred in parallel to a reduction in body weight after the hemodialysis session. These findings suggest that one of the factors for low alanine aminotransferase levels prior to hemodialysis could be hemodilution in patients with chronic renal failure.

Foi realizado estudo transversal de utilização de serviços de saúde no Distrito Sanitário de Pau da Lima, Salvador, Bahia, Brasil, em 1992, a partir de inquérito domiciliar com recurso à técnica de amostragem por conglomerados. Entre as 1887 pessoas moradoras dos 384 domicílios visitados, 236 haviam utilizado serviços de saúde nos últimos 30 dias, correspondendo à taxa global de utilização de 12,5%. Os serviços públicos do distrito foram responsáveis por 25,9% do total dos atendimentos, tendo ocorrido maior utilização na faixa etária entre 15 e 29 anos (29,8%) e no sexo feminino (73,7%). A escolha do tipo de serviços foi influenciada principalmente por razões relacionadas com a acessibilidade (63,7%). A procura dos serviços decorreu sobretudo de motivos relacionados com a ocorrência de doença e com a busca de serviços curativos (75,7%). Esses achados revelam incipiência no processo de distritalização, expresso tanto em insuficiências quantitativas relacionadas com a cobertura assistencial e a oferta de serviços, quanto em problemas organizacionais que fazem com que a produção ainda não utilize preferencialmente os serviços do Distrito. Os autores discutem esses resultados no atual contexto de expansão do setor privado e de colapso de financiamento setorial.

This cross-sectional study is aimed at the identication of patterns in the utilization of health care services in Pau da Lima, a neighborhood in the city of Salvador, Bahia. In 1992, a household survey was carried out with 384 families selected through a random cluster sampling design. In each household, the family head or a surrogate informant was asked to answer a questionnaire about their use of any type of health care in the last month. From the total of 1,887 individuals, 236 reported at least one visit to health facilities during the referent period This means an estimated prevalence of health services utilization of 12.5%. With regard to the type of services, 25.9% of all visits were made to public sector facilities. Attendants were mainly women (73.7%) from 15 to 29 years of age. The main reason reported for the choice of the health facility was availability (63.7%), and the major reason for seeking health care was disease-related conditions (75.7%), rather than preventive procedures. These findings may result from the still unfinished process of distritalização(district allocation of services), which is evident in the lack of health services' infrastructure or coverage, as well as in persistent organizational problems. These issues may lead the population living in the respective district to seek health care outside the assigned catchment area. The authors discuss these findings in the context of the expansion of the private sector in the health area and the financial collapse of the public budget in Brazil.

Foi realizado estudo transversal de utilização de serviços de saúde no Distrito Sanitário de Pau da Lima, Salvador, Bahia, Brasil, em 1992, a partir de inquérito domiciliar com recurso à técnica de amostragem por conglomerados. Entre as 1887 pessoas moradoras dos 384 domicílios visitados, 236 haviam utilizado serviços de saúde nos últimos 30 dias, correspondendo à taxa global de utilização de 12,5%. Os serviços públicos do distrito foram responsáveis por 25,9% do total dos atendimentos, tendo ocorrido maior utilização na faixa etária entre 15 e 29 anos (29,8%) e no sexo feminino (73,7%). A escolha do tipo de serviços foi influenciada principalmente por razões relacionadas com a acessibilidade (63,7%). A procura dos serviços decorreu sobretudo de motivos relacionados com a ocorrência de doença e com a busca de serviços curativos (75,7%). Esses achados revelam incipiência no processo de distritalização, expresso tanto em insuficiências quantitativas relacionadas com a cobertura assistencial e a oferta de serviços, quanto em problemas organizacionais que fazem com que a produção ainda não utilize preferencialmente os serviços do Distrito. Os autores discutem esses resultados no atual contexto de expansão do setor privado e de colapso de financiamento setorial.

This cross-sectional study is aimed at the identication of patterns in the utilization of health care services in Pau da Lima, a neighborhood in the city of Salvador, Bahia. In 1992, a household survey was carried out with 384 families selected through a random cluster sampling design. In each household, the family head or a surrogate informant was asked to answer a questionnaire about their use of any type of health care in the last month. From the total of 1,887 individuals, 236 reported at least one visit to health facilities during the referent period This means an estimated prevalence of health services utilization of 12.5%. With regard to the type of services, 25.9% of all visits were made to public sector facilities. Attendants were mainly women (73.7%) from 15 to 29 years of age. The main reason reported for the choice of the health facility was availability (63.7%), and the major reason for seeking health care was disease-related conditions (75.7%), rather than preventive procedures. These findings may result from the still unfinished process of distritalização(district allocation of services), which is evident in the lack of health services' infrastructure or coverage, as well as in persistent organizational problems. These issues may lead the population living in the respective district to seek health care outside the assigned catchment area. The authors discuss these findings in the context of the expansion of the private sector in the health area and the financial collapse of the public budget in Brazil.