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  • Title: Gender differences among patients with acute coronary syndromes undergoing percutaneous coronary intervention in the American College of Cardiology-National Cardiovascular Data Registry (ACC-NCDR).
    Author: Akhter N, Milford-Beland S, Roe MT, Piana RN, Kao J, Shroff A.
    Journal: Am Heart J; 2009 Jan; 157(1):141-8. PubMed ID: 19081410.
    Abstract:
    BACKGROUND: Although prior studies have demonstrated disparities in the management and outcomes of women with acute coronary syndrome (ACS), there are limited large-scale contemporary data on gender differences in post-intervention outcomes in this population. METHODS: We analyzed patients according to 2 ACS categories, unstable angina/non-ST-elevation myocardial infarction (UA/NSTEMI) and ST-elevation myocardial infarction (STEMI) who had a percutaneous coronary intervention in the ACC-NCDR from January 1, 2004, to March 30, 2006. Of 199,690 patients, 55,691 women presented with UA/NSTEMI, and 12,335 women presented with STEMI. Clinical and angiographic characteristics, procedural and treatment patterns, and in-hospital outcomes were examined. RESULTS: Women presented more often with UA/NSTEMI than men (82% of women vs 77% of men, P < .0001). Despite having greater comorbidities, women in both ACS categories had fewer high risk angiographic features than men. Women were less likely to receive aspirin or glycoprotein IIb/IIIa inhibitors, and were less often discharged on aspirin or statin. For in-hospital mortality, the adjusted odds ratio for men compared to women was similar (odds ratio 0.97, P = .5). Women had higher rates of cardiogenic shock, congestive heart failure, any bleeding, and any vascular complications. Importantly, rates of subacute stent thrombosis were less in women compared to men (0.43% vs 0.57%, P = .0003). CONCLUSIONS: Although women had fewer high-risk angiographic features than men, they continue to have higher rates of in-hospital complications. This suggests the need for gender-tailored techniques to minimize post-intervention complications and maximize application of evidence-based antiplatelet therapies.
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