Short term clinical outcomes of Everolimus-eluting stents in patients with stable angina pectoris

Background & objective: Everolimus-eluting stents, compared with bare metal stents, reduced the risk of restenosis in clinical trials with strict inclusion and exclusion criteria. The objective of this study was to determine the three months clinical outcomes of Everolimus Eluting Stents in patients with stable angina pectoris in Pakistani population.

Methods: It was a descriptive cross-sectional study and the data was collected from Catheterization Laboratory Cardiology Department Lady Readings Hospital Peshawar. Our study included all the patients with stable coronary artery disease who had received Everolimus eluting stents from August, 2013, to April, 2014. Total study duration was 09 months. The primary end points were the rate of target vessel revascularization, myocardial infarction at three months. All those patients who received Everolimus coronary stents were recalled after three months from the index procedure and enquired about target vessel revascularization (TVR), myocardial infarction and hospitalization over the last three months. Data analysis was done using SPSS version 16.

Results: Our study included 378 patients with stable ischemic heart disease who underwent revascularization with Everolimus eluting stent. These patients were followed up for a period of 3 months for target vessel revascularization(TVR) and myocardial infarction(MI). Mean age was 57.04±9.307, males were (72%). Left Anterior Descending (LAD) and Left circumflex (LCx) were the predominant vessels vascularized. Mean length of Everolimus eluting stent was 21.91± 4.6 while mean diameter of stent was 2.90±0.248. Thirteen (3.4%) patients had TVR and 14 (3.7%) patients had MI during three months follow up after PCI. TVR and MI were prevalent in patients who received longer Everolimus stents as compared to those who received shorter stents at three months, and the difference between the two was statistically significant.

Conclusion: Short-term results from this study suggest that real-world outcomes among 378 patients are comparable to those reported in other registries and trials, and safety outcomes as measured by rates of TVR, MI were low. The long-term safety of Everolimus-eluting stents needs to be ascertained in large, randomized trials.