Transcatheter aortic valve implantation and bleeding: incidence, predictors and prognosis

Pilgrim, Thomas; Stortecky, Stefan; Luterbacher, Fabienne; Windecker, Stephan; Wenaweser, Peter (2013). Transcatheter aortic valve implantation and bleeding: incidence, predictors and prognosis. Journal of thrombosis and thrombolysis, 35(4), pp. 456-462. Springer 10.1007/s11239-012-0842-3

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Peri-procedural bleeding complications are feared adverse events in patients undergoing transcatheter aortic valve implantation (TAVI). Little is known about the implications of peri-procedural bleeding on clinical outcome. In a prospective single-center registry of consecutive patients undergoing TAVI, we investigated incidence, predictors and clinical consequences of life-threatening and major bleeding as defined by the Valve Academic Research Consortium. Among 389 consecutive patients undergoing TAVI by a transfemoral (79.2%), transapical (19.6%) or trans-subclavian (1.3%) approach between July 2007 and October 2011, life-threatening or major peri-procedural bleeding events occurred in 64 (16.4%) and 125 patients (32.1%), respectively. Patients with peri-procedural bleeding events had a higher logistic EuroSCORE, more advanced renal disease, and were more symptomatic as assessed by New York Heart Association functional class at baseline as compared to patients with no bleeding. Life-threatening bleeding was associated with a higher all-cause (17.2 vs. 5.6 vs. 3.0%, p < 0.001) and cardiovascular mortality (10.9 vs. 5.6 vs. 2.5%, p = 0.02) at 30 days compared to patients with major bleeding or no bleeding. Multivariate analysis identified transapical access (OR 2.6, 95% CI 1.4-4.8; p = 0.002), glomerular filtration rate <30 ml/min (OR 2.3, 95% CI 1.1-4.7, p = 0.031), and diabetes (OR 1.8, 95% CI 1.001-3.2, p = 0.049) as independent predictors of life-threatening, peri-procedural bleeding. Life-threatening bleeding complications in patients undergoing TAVI are associated with increased mortality. Renal impairment, diabetes, and transapical approach were identified as independent risk factors for life-threatening bleeding events.

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