title: [Aortic valve replacement with stentless bioprosthesis: surgical technique and early outcomes].
abstract: OBJECTIVE
  To evaluate prospectively the hemodynamic performance of «BiolAB Mono» stentless bioprosthesis implanted into aortic position.
  
  
  METHODS
  Twenty seven patients (mean age 71 (67; 73); 17 women) with severe aortic stenosis underwent, aortic valve replacement with «BioLAB Mono» stentless bioprosthesis from 2012 to 2014. The valves- were implanted into supraannular position using continuous polypropylene suture.
  
  
  RESULTS
  In the early postoperative period 1 patient (3.7%) died for acute heart failure. The mean aortic cross-clamping time was 81 (75; 90) min. Echocardiographic peak pressure gradient were 18 (16;23) mmHg (postoperative). There were no cases of valve dysfunction In early 'postoperative period. Level of thrombocytes recovered after 1 O days postoperatively.
  
  
  CONCLUSIONS
  «BioLAB Mono» aortic bioprosthesis implantation. is easy and reproducible. The valve has excellent hemodynamic performance ir;i early postoperative period.
authors.forename: D A
authors.initials: DA
authors.lastname: Astapov
authors.forename: D P
authors.initials: DP
authors.lastname: Demidov
authors.forename: E I
authors.initials: EI
authors.lastname: Demenova
mesh_terms: D000368:Aged; D001021:Aortic Valve / Q000601:surgery*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000401:mortality / Q000503:physiopathology / Q000601:surgery; D001705:Bioprosthesis; D004452:Echocardiography / Q000379:methods; D005260:Female; D006333:Heart Failure / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000517:prevention & control; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects / Q000379:methods; D006439:Hemodynamics; D006801:Humans; D007902:Length of Stay; D008297:Male; D061646:Operative Time; D011183:Postoperative Complications / Q000175:diagnosis / Q000503:physiopathology / Q000517:prevention & control; D011446:Prospective Studies; D012720:Severity of Illness Index; D012800:Siberia; D013536:Suture Techniques; D016896:Treatment Outcome