Clinical, electrocardiographic, and procedural characteristics of patients with coronary chronic total occlusions.

Korean Circulation Journal
Chan Seok ParkJae-Hyung Kim

Abstract

Percutaneous coronary intervention for chronic total occlusion lesions is technically difficult despite equipment advances. Changes in electrocardiographic patterns, such as Q and T waves, during chronic total occlusion can provide information about procedural success and myocardial viability. In this study, we investigated clinical, electrocardiographic, and procedural characteristics of chronic total occlusions. Patients (2,635) who underwent coronary angiography between January 2006 and July 2007 at six Catholic University Hospitals were identified using a dedicated Internet database. A total of 195 patients had total occlusion lesions (7.4%). Percutaneous coronary interventions were attempted in 136 total occlusion lesions (66.0%) in 134 patients. Successful recanalization with stent implantation was accomplished in 89 lesions, with a procedural success rate of 66.4%. One procedure-related death occurred because of no-reflow phenomenon. After excluding 8 patients with bundle branch block, Q and T wave inversions were observed in 60 (32.1%) and 78 patients (41.7%), respectively. The presence of Q waves was associated with severe angina, decreased left ventricular ejection fraction, regional wall motion abnormality, and T wav...Continue Reading

Associated Clinical Trials

References

Jul 1, 1995·Journal of the American College of Cardiology·J A PumaR M Califf
Oct 23, 2003·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Chang-Min ChungOsamu Katoh
Dec 21, 2004·Journal of the American College of Cardiology·Gerald S WernerHans R Figulla
Aug 3, 2006·Journal of Interventional Cardiology·Chaim LotanWilliam Wijns
May 16, 2007·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Ajay J Kirtane, Gregg W Stone

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Citations

Aug 13, 2013·TheScientificWorldJournal·Chuanliang YanBaohua Yu

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Methods Mentioned

BETA
coronary artery bypass

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