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  • Title: Impact of thrombectomy with EXPort Catheter in Infarct-Related Artery during Primary Percutaneous Coronary Intervention (EXPIRA Trial) on cardiac death.
    Author: Sardella G, Mancone M, Canali E, Di Roma A, Benedetti G, Stio R, Badagliacca R, Lucisano L, Agati L, Fedele F.
    Journal: Am J Cardiol; 2010 Sep 01; 106(5):624-9. PubMed ID: 20723635.
    Abstract:
    In ST-segment elevation myocardial infarction (STEMI) impairment of microcirculatory function is a negative independent predictor of myocardial function recovery. In the Impact of Thrombectomy with EXPort Catheter in Infarct-Related Artery during Primary Percutaneous Coronary Intervention (PCI; EXPIRA) trial we found that manual thrombectomy resulted in a better myocardial reperfusion expressed by an improved procedural outcome and a decrease of infarct size compared to conventional PCI. The aim of the present study was to investigate whether the early efficacy of thrombus aspiration translates into very long-term clinical benefit. We randomized 175 patients with STEMI with occlusive thrombus at baseline undergoing primary PCI to thromboaspiration with a manual device (Export Medtronic, n = 88) or standard PCI (n = 87). No differences in baseline, clinical, and angiographic preprocedural findings were observed between the 2 groups except for incidence of hypertension and cholesterol levels. After 24 months major adverse cardiac events were 13.7% versus 4.5% (p = 0.038, log-rank test) and cardiac death was 6.8% versus 0% (p = 0.012, log-rank test). A strict correlation was observed between cardiac death incidence and tissue reperfusion parameters (postprocedural myocardial blush grade and ST-segment resolution). In conclusion, manual thrombus aspiration before stenting of the infarct-related artery in selected patients with STEMI improving myocardial reperfusion significantly decrease cardiac death and major adverse cardiac events at 2 years.
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