Namiranian N, Naghedi A, Farhanian P, Moghadam RN, Seyed HSeyed-Mostafa, Razavi-Ratki SK

Language: Spanish
References: 19
Page: 1-7
PDF size: 217.34 Kb.

ABSTRACT

Background and aims: Cardiovascular diseases are one of the most important causes of death around the world. Coronary artery revascularization is one the most common non-medical methods for treatment of coronary artery diseases. Restenosis and ischemia are the most important consequence of revascularization. Based on recent literature, up to 60% of patients experience silent ischemia after revascularization. Myocardial perfusion imaging (MPI) is reported to be a good modality in diagnosis of silent ischemia. In this study we aimed to investigate prevalence of silent ischemia detected via MPI in patients with history of revascularization. Patients and methods: In this descriptive analytic study, we enrolled 340 asymptomatic patients referred for MPI to Afshar or Shahid Sadoughi hospital, Yazd, Iran with history of revascularization. Patients demographic and past medical history along with their MPI results were recorded in a questionnaire and data were finally analyzed using SPSS 21 software. Results: This study population consist of 206 (60.6%) men and 134 (39.4%) women with mean age of 62.3±9.9 ranged between 35 and 86 years. Based on our results only 40.6% of patients had normal MPI results. In this study, normal MPI was observed in 110 (32.4%) patients with percutaneous coronary intervention (PCI) while only 28 (8.2%) of patients with coronary artery bypass grafting (CABG) had normal MPI results. Based on results of Chi-square test, this difference was statistically significant (P-value=0.020). Conclusion: Prevalence of silent ischemia is high in patients with history of revascularization specially in patients with history of CABG aged between 50 and 70 years. Considering high prevalence of silent ischemia, a closer follow up is logical for patients undergoing coronary revascularization for early diagnosis of restenosis and ischemia.

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