Predictors of procedural success and improvement of left ventricular ejection fraction after successful recanalization of coronary chronic total occlusion (CTO)

• Published in: The Egyptian journal of chest diseases and tuberculosis 2017-04, Vol.66 (2), p.377-380
• Main Authors: Magdy, Ahmed, Shokry, Khaled, Foad, Hany, Elkilany, Wael
• Format: Article
• Language: English
• Subjects: Chronic total occlusion; Percutaneous coronary intervention
• ISSN: 0422-7638
• DOI: 10.1016/j.ejcdt.2017.03.007

This study sought to examine the pre-interventional parameters for procedural success of CTO angioplasty and to assess improvement of Left ventricular ejection fraction after successful angioplasty of CTO. Chronic total occlusions (CTOs) are the most technically challenging lesion subset that interventional cardiologists might face, and that recanalization of these lesions will have the most impact on future percutaneous coronary interventions (PCI) success. Considering the recent development of catheter based technologies specific for CTO recanalization and the potential of drug-eluting stents, these lesions are now recognized as the last barrier to percutaneous revascularization success. 30 patients with CTO lesion(s) and evidence of viable myocardium underwent PCI in Kobry Elkobba hospital. We studied the effect of demographic data, angiographic data as lesion length, stump and proximal cap, calcification, angulation, bridging collaterals and distal cap and finally echocardiography pre and 3months post procedural. Procedural success was obtained in 25 patients (83.3%), 19 of them was antegrade and 6 was retrograde. There was no significant effect of different demographic data on the outcome, but angiographic criteria favoring success was tapered proximal cap, short lesions