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Background: Rapid deployment aortic valve systems may ease aortic replacement in challenging minimally invasive approaches. We report our results of a single-center observational study with the Edwards Rapid Deployment (RD) Valve System in Patients with a Right Anterior Mini-Thoracotomy Approach (RAT-AVR). Methods: From 9/2013 to 3/2015, 30 consecutive patients received RAT-AVR with the RD valve system. Hemodynamic parameters and clinical outcome were assessed perioperatively, and at hospital discharge. To evaluate the learning curve patients were divided into three groups (Group 1; No.1-10 RD-AVR, group 2; No.11-20 RD-AVR, and group 3; No.21-30 RD-AVR) according to the chronological sequence. Results: The median aortic clamp and cardiopulmonary bypass time for the entire patient cohort was 44.5 (35.0-54.3) min and 75.0 (63.8-102) min. Aortic clamp time (p=0.011) and cardiopulmonary bypass time (p=0.032) differed significantly between groups. Mortality rate was 6.7% and conversion rate was 6.7%, with no differences between groups. There was neither paravalvular leakage nor patient prosthesis mismatch. Conclusions: RAT-AVR with the RD valve system is a feasible safe and reproducible procedure. Reproducible short crossclamp-times can be achieved in a RAT-AVR setting within a short period of time, which might increase the acceptance of RATAVR among surgeons.

Right Anterior Minithoracotomy for Aortic Valve Replacement with The Edwards Rapid Deployment Aortic Valve System