Conducta asertiva y autoeficacia para la prevención de ETS en jóvenes estudiantes de la ciudad de Asunción / Assertive behavior and self-efficacy for the prevention of STDs in young students in the city of Asuncion

Se presenta un estudio correlacional entre la conducta asertiva y la autoeficacia para la prevención de Enfermedades de Transmisión Sexual (ETS), en estudiantes de educación media. Para cumplir con los objetivos de la investigación se midieron y correlacionaron las variables; asertividad y autoeficacia para la prevención de ETS con la Escala validada de Autoeficacia para la prevención del SIDA en adolescentes (SEA – 27) de López-Rosales, F. (2001) y el Cuestionario de Asertividad de De Gambrill, E.D. y Richey, C.A (1975). Los datos fueron procesados con el paquete estadístico SPSS. Se concluye que no existe correlación significativa en cuanto a la hipótesis especifica, al nivel de p<0.05, entre las variables de estudio, aceptando la hipótesis nula planteada.

Angioplastia en pacientes revascularizados: experiencia de la Clínica Shaio (1990-1994) / Angioplasty in revascularized patients

The increasing number of patients that have coronary artery bypass grafting surgery (CABG) and that require another intervention later on, creates the need of alternative interventional procedurs. The reason is that reintervention implies more risk of morbility. Therefore, percutaneous transluminal coronary angioplasty (PTCA), emerge as a safe procedure when a revascularized patient shows evidence of bypass grafting oclusion or progression of artheriosclerotic disease in native vessels. To assess the efficacy and safety of PTCA in our institution, a descriptive retrospective study was designed. Between January 1990 and July 1994, 162 revascularized patients that were undergoing PTCA, but only 136 were elegible to be included as the study group because they had follow-up. Most of the 136 patients were men (82.4 per cent), had history of myocardial infarction (61.0 per cent), and complained of resting angina (42.6 per cent); they shared many cardiovascular risk factors among dyslipidemia, hypertension, cigarrette-smoking, etc. Despite the time between surgery and PTCA ranged from months to 14 years, most patients were located in the 6-10 years group.In the 136 patients, a total of 803 vessels were analyzed: 333 grafts 470 native vessels. PTCA was only performed in 157 native vessels and 68 grafts, procedure which was successful in 86.6 per cent and 85.3 per cent of the cases, respectively, with statistical significance between the quality of blood flux pre and post angioplasty (p=0.01 in grafts and p=0.001 in native vessels). In the native vessel group, 10 years between surgery and the PTCA, more than one lesion