Pedro C HallalI

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A longitudinal study of a 32-year period (1954-1987) involving 2038 patients with congenital heart defects followed by the same physician yielded 54 cases of infective endocarditis (IE). Complex cyanogenic cardiopathies were particularly exposed to the risk of infection (8.2 IE for 1000 patient-years), then came ventricular septal defects (2.4), tetralogy(More)
The authors report six cases of atrial septal defect (ASD) associated with abnormal drainage of the inferior vena cava into the left atrium responsible for right-to-left shunting, without pulmonary hypertension. The abnormal drainage could be due either to an anatomical malposition of the inferior vena cava opening into the left atrium, or to an abnormal(More)
OBJECTIVE: To assess smoking prevalence in adolescents and young adults of a population-based birth cohort. METHODS: Prospective birth cohort study of infants born in 1982, in the city of Pelotas, Southern Brazil, and interviewed in 1997, 2000-2001 and 2005. In the 1997 and 2000-2001 follow-up visits, the outcome studied was smoking, defi ned as the(More)
The anatomical and experimental data clearly show that transmural myocardial infarction does not always produce a pathological Q wave on the ECG, but may sometimes only cause abnormalities of the ST segment and the T wave. Conversely, a sub-endocardial myocardial infarction may present with pathological Q waves. Schematically, the histology of transmural(More)
Air embolism is still a major risk of open-heart surgery. Different techniques of air removal have been established, even though none is completely effective. Since 1989 the authors have used a new technique to avoid air passage into the left vent line when the left heart cavities are open. A specially designed probe attached to a vascular Doppler analyser(More)
Glafenine-induced shock. Seven cases. Glafenine is a widely prescribed analgesic drug, and shock is one of its severe side-effects. We report six documented and one highly probable cases of such accidents. From these seven cases and a review of the literature, we have extracted the clinical characteristics of glafenine-induced shock. Shock usually occurs(More)
Percutaneous transluminal angioplasty (PTA), already widely used in stenosis of peripheral, renal or coronary arteries, has now been extended to congenital heart diseases. Thus, in pulmonary or aortic orificial stenosis this simple and fairly safe method has proved to be a suitable alternative to surgery. In other cases it may be used for tiding the patient(More)