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Tytuł oryginału: Hemodynamic performance after stented vs stentless aortic valve replacement.
Autorzy: Jasiński M. J., Hayton J., Kadziola Z., Woś S[tanisław], Sosnowski A. W.
Źródło: J. Cardiovasc. Surg. 2002: 43 (3) s.313-317, il., tab., bibliogr. 10 poz.
Sygnatura GBL: 311,845

Hasła klasyfikacyjne GBL:
  • chirurgia
  • kardiologia
  • transplantologia

    Typ dokumentu:
  • tytuł obcojęzyczny
  • praca kliniczna
  • praca opublikowana za granicą

    Wskaźnik treści:
  • ludzie
  • dorośli = 65 r.ż.
  • płeć męska
  • płeć żeńska

    Streszczenie angielskie: Background. Stentless bioprostheses are anticipated to cause improved hemodyanmics and increased longevity over stented bioprosthesis. We have compared echocardiographic analysis of stented bioprosthesis "Freestyle" with stented "Mosaic" bioprosthesis. Because of similar technology (0 pressure fixation, anticalcification) any differences may relate to stent. Methods. Twenty-eight patients undergoing AVR were randomly assigned to receive either stented or stentless. Echocardiograms, by means of M-mode and Doppler were performed early, 3-6 months and 1 year postoperatively. Results. The peak flow velocity was significantly lower in teh stentless group, especially 1 week and 6 months after surgery. Mean transvalvular gradient dropped significantly in stentless group and did not change in stented group. EOA did not change significantly in either of groups. AoV velocity time integral was increasing in stentless group. LV mass had fallen significantly in both groups but degree of mass reduction was comparable. Conclusions. There are marked improvements of stentless valves hemodynamics. However it is not necessary equal to higher degree of LV mass reduction during 1 year follow-up.

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