@article{BeningHamoudaOezkuretal.2017,
  author    = {Bening, Constanze and Hamouda, Khaled and Oezkur, Mehmet and Schimmer, Christoph and Schade, Ina and Gorski, Armin and Aleksic, Ivan and Leyh, Rainer},
  title     = {Rapid deployment valve system shortens operative times for aortic valve replacement through right anterior minithoracotomy},
  series = {Journal of Cardiothoracic Surgery},
  volume    = {12},
  journal   = {Journal of Cardiothoracic Surgery},
  number    = {27},
  doi       = {10.1186/s13019-017-0598-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-159439},
  year      = {2017},
  abstract  = {Background: There is growing evidence from the literature that right anterior minithoracotomy aortic valve replacement (RAT-AVR) improves clinical outcome. However, increased cross clamp time is the strongest argument for surgeons not performing RAT-AVR. Rapid deployment aortic valve systems have the potential to decrease cross-clamp time and ease this procedure. We assessed clinical outcome of rapid deployment and conventional valves through RAT. Methods: Sixty-eight patients (mean age 76 ± 6 years, 32\% females) underwent RAT-AVR between 9/2013 and 7/2015. According to the valve type implanted the patients were divided into two groups. In 43 patients (R-group; mean age 74.1 ± 6.6 years) a rapid deployment valve system (Edwards Intuity, Edwards Lifesciences Corp; Irvine, Calif) and in 25 patients (C-group; mean age 74.2 ± 6.6 years) a conventional stented biological aortic valve was implanted. Results: Aortic cross-clamp (42.1 ± 12 min vs. 68.3 ± 20.3 min; p < 0.001) and bypass time (80.4 ± 39.3 min vs. 106.6 ± 23.2 min; p = 0.001) were shorter in the rapid deployment group (R-group). We observed no differences in clinical outcome. Postoperative gradients (R-group: max gradient, 14.3 ± 8 mmHg vs. 15.5 ± 5 mmHg (C-group), mean gradient, 9.2 ± 1.7 mmHg (R-group) vs. 9.1 ± 2.3 mmHg (C-group) revealed no differences. However, larger prostheses were implanted in C-group (25 mm; IQR 23-27 mm vs. 23 mm; IQR 21-25; p = 0.009). Conclusions: Our data suggest that the rapid deployment aortic valve system reduced cross clamp and bypass time in patients undergoing RAT-AVR with similar hemodynamics as with larger size stented prosthesis. However, larger studies and long-term follow-up are mandatory to confirm our findings.},
  language  = {en}
}