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The impact of statin therapy on long-term cardiovascular outcomes in an outpatient cardiology practice

Hoang M. Lai, Wilbert S. Aronow, Anthony D. Mercando, Phoenix Kalen, Harit D. Desai, Kaushang Gandhi, Mala Sharma, Harshad Amin, Trung M. Lai

Med Sci Monit 2011; 17(12): CR683-686

DOI: 10.12659/MSM.882126


Background:    Statins reduce coronary events in patients with coronary artery disease.
    Material/Methods:    Chart reviews were performed in 305 patients (217 men and 88 women, mean age 74 years) not treated with statins during the first year of being seen in an outpatient cardiology practice but subsequently treated with statins. Based on the starting date of statins use, the long-term outcomes of myocardial infarction (MI), percutaneous coronary intervention (PCI), and coronary artery bypass graft surgery (CABGS) before and after statin use were compared.
    Results:    Mean follow-up was 65 months before statins use and 66 months after statins use. MI occurred in 31 of 305 patients (10%) before statins, and in 13 of 305 patients (4%) after statins (p<0.01). PCI had been performed in 66 of 305 patients (22%) before statins and was performed in 41 of 305 patients (13%) after statins (p<0.01). CABGS had been performed in 56 of 305 patients (18%) before statins and was performed in 20 of 305 patients (7%) after statins (p<0.001). Stepwise logistic regression showed statins use was an independent risk factor for MI (odds ratio=0.0207, 95% CI, 0.0082–0.0522, p<0.0001), PCI (odds ratio=0.0109, 95% CI, 0.0038–0.0315, p<0.0001), and CABGS (odds ratio=0.0177, 95% CI=0.0072-0.0431, p<0.0001)
    Conclusions:    Statins use in an outpatient cardiology practice reduces the incidence of MI, PCI, and CABGS.

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