Results of percutaneous transluminal coronary angioplasty of high-risk angulated stenoses☆

摘要: Abstract Percutaneous transluminal coronary angioplasty (PTCA) of angulated stenoses has been found in studies using older PTCA equipment to be associated with a heightened risk procedure-related major ischemic events. To better understand the factors procedural and identify means lessening that risk, 100 patients, treated sequentially from 1986 1989, who underwent located at ≥45 ° bends, were characterized for 27 clinical, anatomic variables. Clinical outcome was related these In addition, results 344 consecutive contemporary patients undergoing nonangulated lesions compared those study group. Procedural success achieved only 70% stenoses, 306 (89%) complications (death, bypass surgery or myocardial infarction) occurred 13% 12 (3.5%) (both p 10 mm age ≥65 years led an even higher (9 44 = 20.5%), whereas highly experienced operators use polyethylene terephthalate balloons appeared decrease increase likelihood success. such should undertaken cautiously carefully selected patients.