title: [Prospective assessment of circulatory sufficiency of the patients after 3F equine pericardial stentless bioprosthesis replacement].
abstract: BACKGROUND
  During years more and more advanced Technologies are used for treatment of severe aortic stenosis. One of them is equine pericardial stentless bioprothesis.
  
  
  OBJECTIVE
  the aim of the study was prospective assessment of circulatory sufficiency of the patients after 3F equine pericardial stentless bioprothesis replacement (ATS-Medtronic, Inc, Minneapolis, USA).
  
  
  METHODS
  Patients qualified to valve replacement were qualified to the study. The procedures were performed in general anesthesia and medial thoracothomy. The New York Heart Association (NYHA) scale was analyzed to estimate clinical results of the procedures.
  
  
  RESULTS
  45 patients (10 women and 35 men) aged 23-78 (mean 54 (+/- SD 12.7) were included into the study. Patients were observed during one-year follow up (FU). At the baseline three pts had NYHA II stage, 35 - III and 7 - IV. There was no pts in NYHA I stage. After 3-6 months FU 34 pts were at NYHA I stage (79%) and 9 at NYHA II. After 11-14 FU 33 pts were at NYHA I (80.4%) and 8 NYHA II (19.5%). There was no pts at NYHA IV during 12 months FU (differences between observational periods statistically significant p < 0.001).
  
  
  CONCLUSIONS
  During one-year FU after equine pericardial stentless bioprothesis implantation the improvement of NYHA grade was observed.
authors.affiliation: Klinika Chirurgii Serca Naczyń i Transplantologii Collegium Medicum, Uniwersytetu Jagiellońskiego, Kraków. krzysztofbartus@gmail.com
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Bartuś
authors.forename: Jerzy
authors.initials: J
authors.lastname: Sadowski
authors.forename: Bogusław
authors.initials: B
authors.lastname: Kapelak
authors.forename: Karol
authors.initials: K
authors.lastname: Wierzbicki
authors.forename: Jacek
authors.initials: J
authors.lastname: Myć
authors.forename: Stanisław
authors.initials: S
authors.lastname: Bartuś
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Oleś
authors.forename: Janusz
authors.initials: J
authors.lastname: Konstanty-Kalandyk
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Filip
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D001021:Aortic Valve / Q000601:surgery; D001024:Aortic Valve Stenosis / Q000628:therapy*; D001705:Bioprosthesis; D005260:Female; D005500:Follow-Up Studies; D006350:Heart Valve Prosthesis; D006439:Hemodynamics; D006736:Horses; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D016896:Treatment Outcome