Background: The Myocardial Ischemia and Transfusion (MINT) Trial (N=3504) randomized patients with acute MI and a hemoglobin ≤ 10 g/dL to liberal (maintain Hgb ≥ 10 g/dL) or restrictive (maintain Hgb ≥ 8 g/dL) red blood cell transfusion. The results suggested a benefit on 30-day death or MI with a liberal transfusion strategy. The effect of transfusion in acute MI patients undergoing revascularization is unclear. Methods: In this pre-specified analysis of the MINT trial, patients who underwent revascularization (N=1002) before randomization but during index hospitalization were compared with those who did not (N=2442). The primary outcome was 30-day death or MI; secondary outcomes included 30-day death, recurrent MI, the composite of death, recurrent MI, ischemia driven unscheduled revascularization, or readmission for ischemic cardiac diagnosis, heart failure, and cardiac death. Multivariable log binomial regression was used to determine the relative risks of the primary and secondary

Chronic total occlusion percutaneous coronary intervention has evolved into a subspecialty of interventional cardiology. Using a variety of antegrade and retrograde techniques, experienced operators currently achieve success rates of 85% to 90%, with an incidence of major periprocedural complications of ≈2% to 3%. Several developments in equipment (new microcatheters and guidewires, novel reentry devices), imaging (computed tomography angiography guidance, intravascular imaging for reentry), techniques (intraocclusion contrast injection, advanced subintimal tracking and reentry), and artificial intelligence (automated computed tomography image analysis and prediction of the likelihood of crossing success with various techniques) could further improve outcomes. Global collaboration and rapid dissemination of new developments accelerate the pace of progress. While innovation is exciting and necessary, adhering to the basic principles of chronic total occlusion percutaneous coronary inter