Although previous studies have demonstrated that Hispanic patients have a higher cardiovascular
risk profile than Caucasians and present at a younger age for percutaneous coronary
intervention (PCI), limited studies exist examining the outcomes of Hispanics after
PCI and potential explanations for differences noted. Using patients from the National
Heart, Lung, and Blood Institute Dynamic Registry waves 1 to 5 (1997 to 2006), demographic
features, angiographic data, and 1-year outcomes of Hispanic patients (n = 542) versus
Caucasian patients (n = 1,357) undergoing PCI were evaluated. Compared to Caucasians,
Hispanic patients were younger and had more hypertension and diabetes mellitus, including
more insulin-treated diabetes mellitus. Although mean lesion length was longer in
Hispanics (15.4 vs 14.1 mm, p <0.001), there were no differences in the number of
significant lesions or in the use of drug-eluting stents. At follow-up, Hispanics
were more likely to report recent anginal symptoms but had a similar incidence of
1-year hospitalizations for angina. Adjusted 1-year hazard ratios for adverse events
for Hispanics versus Caucasians revealed lower rates of coronary artery bypass graft
surgery (hazard ratio 0.43, confidence interval 0.22 to 0.85, p = 0.02) and a trend
toward lower rates of repeat revascularization (hazard ratio 0.76, confidence interval
0.57 to 1.03, p = 0.08). In conclusion, despite the presence of diabetes in almost
50% of Hispanic patients and longer lesions than in Caucasians, Hispanic patients
were less likely to undergo coronary artery bypass graft surgery 1 year after PCI
and had a trend toward lower rates of repeat revascularization.
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Article info
Publication history
Published online: July 27, 2009
Accepted:
May 2,
2009
Received in revised form:
May 2,
2009
Received:
March 7,
2009
Footnotes
This study was supported by Grant HL-33292 from the National Heart, Lung, and Blood Institute of the National Institutes of Health, Bethesda, Maryland.
Identification
Copyright
© 2009 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
