PMID: 25790627Mar 21, 2015Paper

Platelet activation after sorin freedom solo valve implantation: a comparative study with Carpentier-Edwards Perimount Magna

The Journal of Heart Valve Disease
Alberto RepossiniClaudio Muneretto

Abstract

As platelet activation is known to be a side effect of cardiac surgery, recent analyses have been conducted to identify the association between thrombocytopenia and aortic valve replacement (AVR) using a bioprosthesis. The type of bioprosthesis has been indicated as an independent risk factor for a lower postoperative platelet count, an association which has been mainly observed with the Sorin Freedom Solo valve. The study aim was to analyze platelet activation after AVR with two different bioprostheses, the Sorin Freedom SOLO (FS) and the Carpentier-Edwards Magna (CE). Thirty-eight consecutive patients undergoing aortic valve surgery were enrolled prospectively and assigned to either the FS group (n = 18) or the CE group (n = 20) according to their clinical evaluation. Five patients who underwent isolated coronary artery bypass graft (CABG) with cardiopulmonary bypass (CPB) were included as a control group. Clinical biochemical parameters (von Willebrand factor (vWF), prothrombin fragments 1+2 (F1+2), P-selectin, and beta-thromboglobulin (beta-TG)) were assessed preoperatively (TO), and at 1 h (T1), 48 h (T2) and seven days (T3) postoperatively. The two groups differed in terms of age (FS 77.3 +/- 7.0 years; CE 65.4 +/- 8.4 ye...Continue Reading

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