Mauricio Pacheco

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This paper describes, for the human onchocerciasis focus of southern Venezuela, the age profiles of Onchocerca volvulus microfilarial (mf) and nodule prevalence, mf intensity, and mf aggregation for the whole examined population (836 Yanomami people) living in 20 villages, and for these communities classified according to endemicity levels (hypoendemic: <(More)
Several adverse effects of vancomycin have been reported. The aim of this study was to assess the incidence of adverse responses to antibiotic prophylaxis with vancomycin in cardiac surgical patients. Prospectively, 116 consecutive patients (106 adults and 10 children) undergoing cardiac surgical procedures in this institution from January to June 1990 were(More)
BACKGROUND The aim of this prospective, randomized, double-blind study was to compare the block induced by ropivacaine 0.5% with levobupivacaine 0.33% at the recommended dose range in upper limb surgery. These concentrations have provided equivalent block after epidural analgesia. We hypothesized that the block induced by both local anesthetics at clinical(More)
Amrinone has been shown to have a beneficial effect on left ventricular function in low output syndrome (LOS), but its use after open-heart surgery has not been extensively revised. We studied 10 patients with LOS post-cardiopulmonary bypass (CPB), who failed to respond to conventional treatment (vasoactive drugs plus intraaortic balloon pump) and were(More)
OBJECTIVE To determine whether two low-dose regimens of aprotinin influence platelet function. DESIGN Prospective, randomized, single-blinded trial. SETTING University teaching hospital performing 600 cardiac operations per year. PARTICIPANTS Fifty-nine patients scheduled for cardiac surgery undergoing cardiopulmonary bypass (CPB) of expected duration(More)
Introduction Conducting a training activity usually involves assessing to students the knowledge and/or the skills acquired. Assessment methods must be objectives and representatives of the item being evaluated and able to ensure their independence from the evaluator. The assessment of practical skills in cardiopulmonary resuscitation (CPR) acquired by a(More)