COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

[Effects of intracoronary or intravenous tirofiban administration in patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention]

Xin-chun Yang, Da-peng Zhang, Le-feng Wang, Li Xu, Yong-gui Ge, Hong-shi Wang, Wei-ming Li, Zhu-hua Ni, Kun Xia, Yong Lian, Yong-li Xue, Li-Xiang Ma
Zhonghua Xin Xue Guan Bing za Zhi 2007, 35 (6): 517-22
17711710

OBJECTIVE: To compare the effects on MACE of intracoronary or intravenous tirofiban bolus administration in patients with acute ST-elevation myocardial infarction (STEMI).

METHODS: A total of 60 consecutive STEMI patients ready to receive primary PCI were randomly assigned to intracoronary tirofiban bolus (10 microg/kg) prior to the first balloon inflation (Group IC) or to intravenous tirofiban bolus at the same dose prior to coronary angiography (Group IV), followed by a 36-hours IV tirofiban (0.15 microg . kg(-1) . min(-1)) infusion for all patients. Clinical and angiographic features between 2 groups before and after PCI were analyzed.

RESULTS: Fifty-four out of 60 STEMI patients accomplished the study. Group IC was superior to Group IV in terms of TIMI flow grade, TIMI myocardial perfusion grade, ST-segment resolution, the distal embolism of IRA immediately after PCI and ejection fraction at 5 - 7 days after the PCI. The in-hospital MACE rate and bleeding complications were similar between the groups while, the combined incidence of MACE during follow-up was significantly lower in the Group IC compared with Group IV (7.1% versus 30.8%; P = 0.02).

CONCLUSION: Intracoronary bolus application of tirofiban is associated with superior clinical prognosis compared with the standard intravenous bolus application of tirofiban in patients with STEMI undergoing primary PCI.

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