Derivation and validation of a preoperative risk model for postoperative mortality (SAMPE model): An approach to care stratification.

Ascertaining which patients are at highest risk of poor postoperative outcomes could improve care and enhance safety. This study aimed to construct and validate a propensity index for 30-day postoperative mortality. A retrospective cohort study was conducted at Hospital de Clínicas de Porto Alegre, Brazil, over a period of 3 years.

[Clinical and epidemiological profile of HIV-infected pregnant women in a service in south Brazil].

Purpose: to analyze the clinical and epidemiological profile, the outcome of pregnancy and the vertical transmission of human immunodeficiency virus (HIV)-infected pregnant women receiving prenatal care at the University Hospital of Santa Maria (HUSM).

Methods: A prospective study was conducted on 139 HIV-infected pregnant women attended at the High-Risk Prenatal Care Outpatient Clinic of HUSM, during the period from August 2002 to August 2007, with at least two prenatal visits in this service. Data were collected by an interview and by filling out a research protocol during a prenatal visit.