Background: Cardiovascular diseases alone have become the leading cause of death worldwide. One of the treatment methods cardiovascular disease is angioplasty. This study aimed to investigate the clinical results after coronary artery angioplasty, based on the incidence of major cardiovascular events with emphasis on stent types.
Methods: In this retrospective cross-sectional study, the prevalence of risk factors (age, history of previous illness and previous surgery) was assessed by using a case file for patients undergoing coronary angioplasty and stent placement during the years 2006 to 2016 and found during the follow-up. The place of the study was the Imam Ali Hospital's educational center affiliated to Kermanshah University of Medical Sciences, Iran, from July to September 2017.
Results: In this study, 1188 patients undergone to stent containing 909 non-drug stents, 504 sirolimus-eluting stents and 316 paclitaxel-eluting stents. Patients were followed-up one to five years. During follow-up, 98 patients involved major cardiovascular events, 6 cases involved with death and 91 patients involved with myocardial infarction. 1729 of patients undergone angioplasty and during follow-up, 91 patients had stent restenosis. In this study stent restenosis showed the highest correlation with the incidence of major cardiovascular events. With a view to stent type in lesions with stent restenosis, 61.7% was in non-drug stent, 23.5% was in paclitaxel-eluting stent and 14.8% was in sirolimus-eluting stent. This study also showed that despite the superiority of sirolimus-stained stents, there was no difference between paclitaxel-stained stents and non-drug stents in clinical outcomes and restenosis.
Conclusion: The results showed that the syringes impregnated with sirolimus have better quality. Also, stents that have a smaller diameter or need dilatation in the procedure have a worse prognosis and cause more complications in the patient.