Value of Pre-procedural Multi-detector Computed Tomography Angiography in Prediction of Outcome in Retrograde Approach Recanalization For Coronary Chronic Total Occlusion

Abstract

Multi-detector Computed tomography (MDCT) coronary angiography can be useful in procedure planning for CTO PCI by identifying factors known to influence PCI success rates, such as calcification, severe tortuosity and length of the occluded segment. Percutaneous coronary intervention for CTO is considered to be one of the most challenging procedures of interventional cardiology, and in the earlier studies, successful recanalization rates of CTO ranged from 51% to a max of 74%. However, with improved operator experience and the development of novel equipment and techniques, procedural success rates have been increased, which brings an increasing number of CTO into a treatable category. In several previous studies, it has been reported that the appropriate use of both antegrade and retrograde approaches has noticeably improved the overall success without increasing the rate of major complications.