22 Transcatheter aortic valve replacement: a comparison of the direct flow medical and sapien 3 aortic valves
2016
Introduction The Direct Flow Medical (DFM) valve is a non-metallic, double ring valve which is repositionable and retrievable. The Freeman Hospital is the highest volume DFM centre in the UK. We wanted to compare the safety of this valve with the Sapien 3 (S3) TAVR valve. Methods We retrospectively assessed all the S3 and DFM TAVR procedures performed under general and local anaesthetic. Of 71 patients, 44 had the S3 valve inserted and 27 had the DFM valve inserted. The delivery approach was trans-femoral in all patients. Results Both groups were similar with respect to age, comorbidities, and EuroScore. The severity of aortic stenosis was significantly greater in the S3 group pre procedure. Skin open to skin closure was significantly shorter in the S3 group (145 mins vs 101 mins; p Conclusions There were no differences in safety between the Sapien 3 and DFM valves although we found the mean and peak gradients to be significantly higher with the DFM valve post procedure.
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