Heart valve replacement with the Björk-Shiley and St Jude Medical prostheses: A randomized comparison in 178 patients
In 178 patients, a randomized prospective comparison between the 60° spherical disc Björk-Shiley (BS) and the St Jude Medical (SJM) heart valve prostheses was performed. Four-week perioperative mortality was zero in the BS (n = 84) and 4.3% in the SJM group (n = 94). During a mean ( ± SD) follow-up...
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Veröffentlicht in: | European heart journal 1990-07, Vol.11 (7), p.583-591 |
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Sprache: | eng |
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Zusammenfassung: | In 178 patients, a randomized prospective comparison between the 60° spherical disc Björk-Shiley (BS) and the St Jude Medical (SJM) heart valve prostheses was performed. Four-week perioperative mortality was zero in the BS (n = 84) and 4.3% in the SJM group (n = 94). During a mean ( ± SD) follow-up of 52 ± 20 months or 778 patient-years, late cardiac mortality per year was 2.4% in the BS and 2.2% in the SJM group. The yearly thromboembolic rates were 1.4% in the BS and 2.0% in the SJM group. There was no mechanical valve failure or haemolytic anaemia. Paravalvular leaks and major bleeding complications occurred at low rates in both groups (1.1% and2.2% per year in BS; 0.7% and 1.7% per year in SJM). Functional results were similarly good with 96% of patients with BS valves and 95% of patients with SJM prostheses being in NYHA classes I and II, respectively. We conclude that heart valve replacement with mechanical prostheses can be performed with equally good results using either the Björk-Shiley spherical disc valve or the St Jude Medical bileaflet prosthesis. |
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ISSN: | 0195-668X 1522-9645 |
DOI: | 10.1093/oxfordjournals.eurheartj.a059763 |