alexa Comparison of outcomes of percutaneous coronary intervention of ostial versus nonostial narrowing of the major epicardial coronary arteries.
Medicine

Medicine

Journal of Medical Diagnostic Methods

Author(s): Mavromatis K, Ghazzal Z, Veledar E, Diamandopoulos L, Weintraub WS,

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Abstract Outcomes of percutaneous coronary intervention (PCI) of the ostia of the major epicardial coronary arteries in the modern era of stenting have not been clearly defined. We evaluated data from all PCIs performed from 1998 to 2001 in the proximal segments of the major epicardial coronary arteries entered into a large cardiac database and compared ostial with nonostial PCI outcomes. Of 2,484 patients who underwent PCI of a proximal coronary artery (left anterior descending, left circumflex, or right coronary), 223 patients had ostial narrowing and 2,261 patients had proximal, nonostial narrowing. Baseline characteristics were similar between the 2 groups, except that patients with ostial narrowing tended to be older and have shorter narrowings than did patients with nonostial narrowings. Stenting occurred in 89\% of all patients and was similar in patients with ostial or nonostial narrowings. Procedural success was the same for ostial and nonostial PCI (96\% vs 95\%, p = 0.95). One-year event-free survival rate was lower in patients who underwent ostial PCI (69\% vs 80\%, p = 0.0019), largely due to a greater need for repeat PCI (19\% vs 10\%, p <0.0001). Multivariate analysis showed that ostial location, age, angina class, and number of diseased vessels were independent predictors of the occurrence of cardiac events. PCI of ostial narrowings of the major epicardial coronary arteries was relatively safe. However, at 1 year, patients who underwent ostial PCI had an increased rate of repeat revascularization compared with patients who underwent nonostial, proximal PCI. Copyright 2004 Excerpta Medica, Inc. This article was published in Am J Cardiol and referenced in Journal of Medical Diagnostic Methods

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