Coronary angioplasty versus coronary artery bypass surgery: the Randomised Intervention Treatment of Angina (RITA) trial

摘要: Abstract The Randomised Intervention Treatment of Angina (RITA) trial is comparing the long-term effects percutaneous transluminal coronary angioplasty (PTCA) and artery bypass surgery (CABG) in patients with one, two, or three diseased arteries whom equivalent revascularisation was deemed achievable by either procedure. This first report for a mean 2·5 years' follow-up on 1011 randomised. 59% had grade 3 4 angina, experienced angina at rest, 55% two more arteries. intended procedure done 98% patients. In 97% CABG all vessels were grafted. Dilatation treatment attempted 87% PTCA an angiographic success rate per vessel (90% excluding occluded vessels). There have been 34 deaths (18 CABG, 16 PTCA) pre-defined combined primary event death definite myocardial infarction shows no evidence difference (43 50 PTCA; relative risk 0·88 [95% confidence interval 0·59-1·29]). 4% required emergency before discharge further 15% during follow-up. Within 2 years randomisation 38% 11% groups, respectively, procedure(s) (p