title: First experience with the new Sorin Crown PRT bioprosthetic aortic valve: early postoperative outcome and hemodynamic performance in 90 patients.
abstract: OBJECTIVE
  The Crown PRT (The Phospholipid Reduction Treatment) is a new stent bovine bioprosthesis for aortic valve replacement (AVR). Aim of this paper is to report the postoperative clinical and hemodynamic results after ninety consecutive implants.
  
  
  METHODS
  After receiving CE mark in July 2014, two European university centers implanted the new Crown PRT (Sorin Group, Burnaby, Canada) for the first time. Up to now, ninety patients underwent aortic valve replacement, in isolated or combined procedures, for aortic stenosis or insufficiency. Intraoperative transesophageal echocardiogram was used to assess the prosthesis's function. In hospital outcomes and echocardiographic parameters were recorded.
  
  
  RESULTS
  Age and Log Euroscore were 71.8±7.9 years and 10.2%±4.5 respectively. In-hospital mortality for isolated AVR was 0%; one patient died after a multiple procedure (overall 30-days mortality 1.1%). No adverse device effects were recorded. Intensive Care Unit stay was 2±5.8 days. At discharge, echocardiogram showed no paravalvular leaks and normal postoperative gradients.
  
  
  CONCLUSIONS
  Our starting results showed that the Crown PRT is safe and reliable, with excellent hemodynamic performance. Further clinical results with a larger population and long term follow-up are needed to assess the versatility and the durability of this new device.
authors.affiliation: Cardiac Surgery, Cardiovascular Center, Klinikum Nürnberg, Paracelsus Medical UniversityNuremberg, Germany - fpollari@gmail.com.
authors.forename: F
authors.initials: F
authors.lastname: Pollari
authors.forename: C
authors.initials: C
authors.lastname: Dinges
authors.forename: F
authors.initials: F
authors.lastname: Vogt
authors.forename: J
authors.initials: J
authors.lastname: Sirch
authors.forename: S
authors.initials: S
authors.lastname: Pfeiffer
authors.forename: R
authors.initials: R
authors.lastname: Seitelberger
authors.forename: T
authors.initials: T
authors.lastname: Fischlein
authors.forename: G
authors.initials: G
authors.lastname: Santarpino
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000601:surgery*; D001317:Austria; D001705:Bioprosthesis; D017548:Echocardiography, Transesophageal; D005260:Female; D005858:Germany; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation* / Q000401:mortality; D006439:Hemodynamics; D017052:Hospital Mortality; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000401:mortality; D011474:Prosthesis Design; D013997:Time Factors; D016896:Treatment Outcome