Short-term hemodynamic advantages of stentless CryoLife-O'Brien valve over stented bioprostheses for aortic valve replacement.

Abstract:

:For the CryoLife-O'Brien valve (CryoLife Inc, Kennesaw, GA, USA), implanted with a single suture line, we aimed to analyze the surgical requests and the hemodynamic results compared to stented bioprostheses. Two groups of patients requiring isolated aortic valve replacement from this population were compared retrospectively: 84 patients receiving the stentless CryoLife-O'Brien valve (Group A) and 94 patients receiving stented bioprostheses (Group B). Preoperative characteristics of patients were statistically equivalent for both groups. Statistically significant differences were observed only for operative durations and post-operative transprosthetic gradients: Aorta cross-clamp and cardio-pulmonary bypass durations were statistically longer for Group A than for Group B (45.9+/-5.7 min vs. 41.1+/-6.8 min; P<0.0001; and 64.3+/-11.6 min vs. 59.3+/-11.9 min, respectively; P=0.0053); maximal gradients and mean gradients were 19.9+/-10.9 mmHg vs. 25.6+/-10.4 mmHg (P=0.0008) and 10.8+/-5.3 mmHg vs. 14.8+/-6.4 mmHg (P<0.0001). Few surgical constraints and early post-operative hemodynamic efficiency of the stentless CryoLife-O'Brien valve means that this bioprosthesis can be intented in current practice for the aortic valve replacement in elderly patients.

authors

Chatel D,Mica C,Blanchard D,Baud F,Bruere D,Maudiere A,Peycher P

doi

10.1510/icvts.2006.133967

subject

Has Abstract

pub_date

2006-10-01 00:00:00

pages

578-80

issue

5

eissn

1569-9293

issn

1569-9285

pii

icvts.2006.133967

journal_volume

5

pub_type

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