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Coronary artery stenting in the elderly: Short-term outcome and long-term angiographic and clinical follow-up



Coronary artery stenting in the elderly: Short-term outcome and long-term angiographic and clinical follow-up



Journal of the American College of Cardiology 32(3): 577-583



Objectives. This study sought to compare the short- and long-term outcomes of elderly patients undergoing coronary artery stenting with those of younger patients and to determine the long-term clinical outcome and survival of elderly patients post stent implantation. Background. Elderly patients undergoing coronary revascularization are considered a high-risk group. Few data exist that relate the results of stenting in treating coronary artery disease in the elderly population. Methods. All elderly patients gtoreq 75 years of age who underwent coronary artery stenting between March 1993 and July 1997 (n = 137) at our center were compared to the patients <75 who underwent coronary artery stenting during the same time period (n = 2,551). Long-term clinical follow-up and survival were determined for the elderly group. Results. Elderly patients presented with lower ejection fractions (54% vs. 58%, p = 0.0001), more unstable angina (47% vs. 28%, p = 0.0001), and more multivessel disease (78% vs. 62%, p = 0.0001) than younger patients. These older patients had higher rates of procedure related complications including procedural myocardial infarction (MI) (2.9% vs. 1.7%, p = 0.2), emergency CABG (3.7% vs. 1.4%, p = 0.04), and death (2.2% vs. 0.12%, p = 0.0001). Angiographic follow-up, obtained in both groups, demonstrated significantly higher restenosis rates in the elderly versus younger patients (47% vs. 28%, p = 0.0007). Longer term clinical follow-up, which was obtained only in the elderly group, showed that at a mean follow-up period of 12 months post coronary stenting, elderly survival free from death, MI, revascularization and angina was 54% and that their overall survival was 91%. Subanalysis of the elderly patients who died showed much higher incidence of combined unstable angina (80%), prior MI (60%), lower ejection fraction (46%), multivessel disease (100%) and complex lesions (100%) than the overall group. Conclusions. Elderly patients who undergo coronary artery stenting have significantly higher rates of procedural complications and worse six month outcomes than younger patients, especially those who present with combined unstable angina, history of MI, EF < 50%, multivessel disease and complex lesions. Overall survival in the elderly population at 12 months postcoronary artery stenting was 91% and event-free survival was 54%.

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Accession: 008390799

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PMID: 9741496

DOI: 10.1016/s0735-1097(98)00287-3


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