The Evaluation Of Thrombectomy During Primary Percutaneous Coronary Intervention In Patients With Acute Myocardial Infarction

Primary percutaneous coronary intervention is effective in opening the infarc-related artery in patients with myocardial infarction.The emvolization of atherothrombotic debris diminishes myocardial reperfusion.Thrombectomy is a method of reduce the debris of thrombosis.Objective:To evaluate the clinical effection of thrombetomy during primary percutaneous coronary intervention in patients with acute myocardial infarction.Methods:A total of 36 patients with acute myocardial infarction,all of whom was confirmed to have a infarc-related artery with blood flow of TIMI 0-1 after the guidewire went through the lesion and unwent primary percutaneous coronary intervention from March 2007 to March 2010 in the Cardiology Department of Jilin University China-Japan union Hospital,were collocted.18 cases underwent thrombetomy during primary percutaneous coronary intervention,while the other 18 patients only were treated with routine primary percutaneous coronary intervention.The atherothrombotic material,the deree of resolution of ST-segment 2h after PCI,LVEDD,EF were compared. All datas is analized with statistical mathod. Measurement data (in this study are in line with the normal distribution) with the mean addition and subtraction in mean difference using t tests, count data using x2 test.Results:1.15 of 18 cases can obtain better blood flow after thrombectomy.2.The rate of patients with resolution of ST-segment 2h after PCI over 70% is defferent between the two groups while the rate of cases with resolution of ST-segment 2h after PCI over 50v shows no difference. 3.The LVEDD,EF,in-hospital days and the major adverse cardiac events of the two group show no difference.Conclusion:1. The thrombetomy during primary percutaneous coronary intervention can improve the blood flow of the infarc-related artery.2.The thrombetomy can reduce the mictovascular obstruction and improve myocardial reperfusion.3.The thrombetomy won't infulent the door-to-balloon time.4.The long-term outcomes of the thrombetomy during primary percutaneous coronary intervention should be studied further.