More than 10,000 percutaneous coronary angioplasties are performed in Finland annually. We examined in a three-year follow-up the results of percutaneous coronary angioplasty performed for 875 patients at the Kuopio University Hospital. Procedural and end-point data were collected from patient records and by mail inquiry. Out of three balloon angioplasties, two were performed for patients having an acute coronary syndrome. One bioactive or drug-eluting stent was inserted for two thirds of the patients. Procedural complications and mortality over three years among patients treated with balloon angioplasty were of good international standard, and balloon angioplasty improved the patients' condition.