title: Four years experience with dura mater cardiac valves.
abstract: The clinical use of homologous dura mater cardiac valves was begun in January 1971. Between January 1971 and May 1975, 751 patients received 849 dura mater valves: 428 mitral, 365 aortic, 52 tricuspid and 4 pulmonary. The hospital mortality observed in this series was 13.6% and late mortality was 2.5%. The main causes of death were low-output syndrome in the immediate post-operative period or cardiac failure in the late post-operative period, due to myocardial impairment. Paravalvular leaks and errors in the manufacture of the valve were the main causes of regurgitation both in the immediate and late post-operative period. The incidence of thromboembolism, bacterial and fungal endocarditis was: 0.79%, 0.39%, 0.53% respectively. The results obtained with dura mater valve in a period of four years are satisfactory from the clinical and hemodynamic points of view.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001021:Aortic Valve / Q000601:surgery; D001228:Aspergillosis / Q000209:etiology; D001232:Aspergillus fumigatus; D002648:Child; D002675:Child, Preschool; D004388:Dura Mater / Q000637:transplantation*; D004696:Endocarditis / Q000209:etiology; D006351:Heart Valves / Q000601:surgery*; D006801:Humans; D008722:Methods; D008875:Middle Aged; D008943:Mitral Valve / Q000601:surgery; D011183:Postoperative Complications; D011664:Pulmonary Valve / Q000601:surgery; D013530:Surgical Wound Infection; D013923:Thromboembolism; D014184:Transplantation, Homologous; D014261:Tricuspid Valve / Q000601:surgery