[Stent-delayed implantation strategy of acute myocardial infarction with high thrombus burden in primary percutaneous coronary intervention].
OBJECTIVE
To retrospectively evaluate the efficacy of stent-delayed implantation in patients with acute myocardial infarction (AMI) with high thrombus burden after thrombus extraction was performed.


METHODS
Of 186 consecutive AMI patients, 56 were included according to thrombus score(TS)>or=2, and then were divided into 2 groups based on the thrombus score after thrombus extraction was executed: the stent-direct implantation group (TS=0 or 1)and the stent-delayed implantation group (TS>or=2) even if 3 times thrombus extraction were given. Thrombolysis in myocardial infarction(TIMI)flow grade and TIMI myocardial perfusion (TMP) were used to assess the coronary artery flow and myocardial perfusion,respectively.


RESULTS
TIMI score in the stent-direct implantation group was lower than that in the stent-delayed implantation group. There was no significant difference(P=0.07). TMP score in the stent-direct implantation group was significantly lower than that in the stent-delayed implantation group (P<0.05).


CONCLUSIONS
Stent-delayed implantation can remarkably improve myocardial perfusion in AMI patients with high thrombus burden after thrombus extraction and intensive anti-thrombosis therapy is administrated.
Hu
Xinqun
X
Department of Cardiology, Second Xiangya Hospital, Central South University, Changsha 410011, China. huxinqungs@hotmail.com
Liu
Zhenjiang
Z
Fang
Zhenfei
Z
Tang
Jianjun
J
Li
Jiang
J
Shen
Xiangqian
X
Zhou
Shenghua
S
D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D003328:Coronary Thrombosis / Q000517:prevention & control* / Q000628:therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000628:therapy*; D012189:Retrospective Studies; D015607:Stents; D013396:Suction; D017131:Thrombectomy / Q000379:methods*; D013997:Time Factors