Objetivo: El objetivo principal de este estudio fue determinar los resultados clínicos y angiográficos inmediatos en los pacientes con angina inestable sometidos a Angioplastía coronaria (AC) con o sin implantación de Stents (SS no recubiertos en un centro hospitalario nacional y la influencia de la Diabetes Mellitus (DDM) en este grupo, así como su evolución clínica a los 6 meses de seguimiento. Material y método: Es un estudio experimental, transeccional, descriptivo. Fueron elegidos pacientes consecutivos desde octubre del 2001 a enero de 2002. Se incluyeron las características demográficas, la indicación del procedimiento, el tipo de intervención, sus resultados y complicaciones. Los pacientes fueron contactados telefónicamente 6 meses después de la intervención coronaria. Resultados: Se incluyeron 42 pacientes (33 hombres y 10 mujeres),13 diabéticos. Se trataron 60 vasos: en 47(78.33%) se realizó AC + ST y en 11 (18.33%) solo AC. De estos hubo 56 intervenciones exitosas y 2 no exitosas (una de ellas 1 caso fatal). Otras 2 intervenciones (3.33%) no se pudieron completar, lo que da un éxito del 93,33% (56 de 60 vasos). El promedio de stents/vaso fue 1,15, el de estancia hospitalaria fue 6,14 días y el de estancia posterior a la intervención fue 2.71 días. Fueron seguidos 38 de los 42 pacientes: 26 (68,42%) no presentaron eventos cardíacos a los 6 meses (9 diabéticos); los restantes 12 (31,58% 4 diabéticos) presentaron angina estable 8, angina inestable 2, infarto de miocardio no fatal 1. Cinco pacientes requirieron un nuevo procedimiento de revascularización: 2 AC+ST, 1 AC sin ST y 2 revascularización quirúrgica. Hubo 2 muertes de causa cardíaca: infarto de miocardio fatal y choque cardiogénico. La tasa de complicaciones de pacientes no diabéticos fue 30 % (8 de 26) y la de los diabéticos 33% (44 de 13). Conclusiones: La angioplastía coronaria en nuestro centro tiene buenos resultados, baja tasa de complicaciones y estancia hospitalaria. La Diabetes Mellitus no representó un factor pronóstico adverso en esta serie.
Objective: The main goal of this study was to determine the inmediate clinical and angiographic results in patients suffering from unstable angina submitted to coronary angioplasty with/without implantation of bare stents in a tertiary hospital, to see the influence of diabetes mellitus on this group, as well as their clinical evolution after a 6 month follow up. Material and methods: this is a transeccional descriptive study with consecutive patients chosen between october 2001 and january 2002. Demographic characteristics, procedure indications, type of intervention, results and complications were included. The patients were contacted over the phone 6 months after the coronary intervention. Results: 42 patients were included (33 males/10 females), 13 of them were diabetics. Sixty vessels were treated, in 47 vessels (77 coronary angioplasty plus stent insertion was used, and in 11 (18.33%) angioplasty alone. Fifty six vessels were successfully treated, 2 were not (1 of these patients died) and other 2 could not be completed, for an altogether success rate of 93.33 (56 out of 60 vessels). The average stent/vessel rate was 1.15, hospital stay averaged 6.14 days, and the in-hospital post procedure stay was 2.7 days. Thirty eight of 42 patients were available for a 6 month follow up, 26 (68.42%) had no cardiac events, 6 of which were diabetics . Of the remaining 12 (31,58%), of which 4 were diabetics, 8 had stable angina, 2 had unstable angina, and 1 had a non fatal myocardial infarction. Five patients required a new revascularization procedure, 2 coronary angioplasty plus stenting, 1 angioplasty alone, and 2 coronary surgery. Two cardiac deaths occurred, 1 had a fatal infarct and the other had cardiogenic shock. The complication rate for non diabetics was 30% (8 of 26) and that one for diabetics was 33% (4 of 13). Conclusion: coronary angioplasty at the San Juan de Dios Hospital is done with good results, a low complication rate and short hospital stay. Diabetes mellitus was not an adverse prognostic factor in this group of patients.