Accuracy of a neural diagnostic tree for the identification of acute coronary syndrome in patients with chest pain and no ST-segment elevation.

Identifying acute coronary syndrome is a difficult task in the emergency department because symptoms may be atypical and the electrocardiogram has low sensitivity. In this prospective cohort study done in a tertiary community emergency hospital, we developed and tested a neural diagnostic tree in 566 consecutive patients with chest pain and no ST-segment elevation for the diagnosis of acute coronary syndrome. Multivariate regression and recursive partitioning analysis allowed the construction of decision rules and of a neural tree for the diagnosis of acute myocardial infarction and acute coronary syndrome.

[Additional cardiovascular risk factors associated with excess weight in children and adolescents: the Belo Horizonte heart study].

Objective: To examine the association of overweight and obesity with physical activity, blood pressure (BP) and serum lipid profiles.

Methods: Epidemiologic investigation of 1,450 students, between the ages of 6 and 18, in the city of Belo Horizonte, MG.

Data: weight, height, BP, skinfold thickness, waist circumference, physical activity, total cholesterol (TC), LDL-c, HDL-c, and dietary habits.

[Comparison between pre-thickened and home-thickened formulas in gastroesophageal reflux treatement].

Objective: The purpose of this study was to compare the effectiveness of a pre-thickened infant formula (Nan AR) with a conventional homemade formula in the reduction of regurgitation and vomiting in infants with gastroesophageal reflux.\par

Methods: A hundred children, under 12 months, not exclusively breast feeding, were select for the study. Forty-eight were treated with conventional formula with starch and 52 with pre-thickened infant formula.