Postoperative clopidogrel improves mid-term outcome after off-pump coronary artery bypass graft surgery: a prospective study

Autor: Haiyan Cui, Ayhan A. Zia, Ali Can Vuran, Aydın Aytaç, Ahmet Tayfun Gürbüz
Rok vydání: 2005
Předmět:
Zdroj: European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery. 29(2)
ISSN: 1010-7940
Popis: Objective: Clopidogrel decreases recurrent ischemic events and improves intracoronary stent patency. There are scarce data on the effect of short-termandlong-termclopidogrel on symptomrecurrence andadversecardiacevents following off-pumpcoronaryarterybypass graftsurgery (OPCAB). Methods: Postoperative antiplatelet medication use was prospectively evaluated in 591 OPCAB patients. Clopidogrel was administered for 30 days in 186 patients and 139 received long-term clopidogrel (mean 33.6 12.0 months) in addition to aspirin. Follow-up was 37.7 13.4 months. Symptom recurrence (angina and congestive heart failure), adverse cardiac events (myocardial infarction, coronary reintervention, and suddencardiac death),andoverallmortalitywere prospectively recorded.MultivariateCoxregressionanalysiswasusedto evaluatepredictorsof end points. Results: There was no difference with respect to preoperative risk factors between patient groups. In the multivariate analysis, postoperative clopidogrel independently decreased symptom recurrence (p < 0.0001, OR 0.3 [0.15—0.99]; 95% CI) and adverse cardiac events (p < 0.0001, OR 0.2 [0.10—0.45]; 95% CI). Clopidogrel receivers had significantly lower angina recurrence, myocardial infarction, coronary reintervention, and sudden cardiac death during follow-up. There was no difference in the incidence of end points between short-term (30 days) and long-term receivers of the drug. There were 17 bleeding complications (4 major and 13 minor) in 15 patients during the follow-up period. Of the 15 patients, 6 were on clopidogrel in addition to aspirin (1.8%) while the remaining 9 were on aspirin (3.3%) only at the time of bleeding (p = 0.8). Conclusions: Clopidogrel therapy was independently associated with decreased symptom recurrence and adverse cardiac events following OPCAB. Extending clopidogrel use beyond 30 days did not have a significant effect on defined end points. # 2005 Elsevier B.V. All rights reserved.
Databáze: OpenAIRE