[Medium- and long-term results of valvular prostheses].
Two hundred and thirty-nine patients undergoing cardiac valve replacement were analyzed from follow-up point of view. One hundred and twenty eight (53.6%) were female and 169 (70.7%) were of the white race. Twenty one (8.8%) were less than or equal to 20 years, 94 (39.2%) were greater than 20 and less than 40 years, 107 (44.7) were greater than or equal to 40 and less than 60 and 17 (7.3) greater than or equal to 60 years old. In 118 surgeries (45.3%) the heart valve was replaced by bioprosthesis and in 142 (54.7%) by mechanical prosthesis. In the bioprosthesis group the mitral valve was replaced 109 times (92.3%), aortic 6 (5%) and tricuspid 3 (2.5%). In the mechanical group the aortic valve was replaced 98 times (69%) and the mitral valve 44(31%). The patients had a follow-up period that ranged from 3 months to 18 years with mean 5 years. Before the surgery 15 patients (6.3%) were in functional class I, 38 (15.9%) in class II, 135 (56.5%) in class II and 51 (21.3%) in class IV. During the follow-up period we observed that 190 patients (79.5%) were in functional class I, 36 (15%) in class II, 11 (4.3%) in class III and only 2 (8%) in class IV. From the radiological point of view we observed that, during the period of observation, 62 (32.4%) normalized the heart size. During the follow-up period we observed that 20 patients (8.4%) presented prosthesis related complications, 15 (75%) with bioprosthesis and 5 (25%) with mechanical prosthesis. Eleven (55%) enduented reoperation without mortality.(ABSTRACT TRUNCATED AT 250 WORDS)
Barbosa Filho
J
J
Serviço de Cardiologia do HUPE-UERJ, Rio de Janeiro, Brasil.
Campos
L A
LA
Corvisier
R C
RC
Barbosa
P R
PR
D000328:Adult; D005260:Female; D006349:Heart Valve Diseases / Q000503:physiopathology / Q000601:surgery*; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011475:Prosthesis Failure; D012086:Reoperation; D013997:Time Factors
Resultados a médio e longo prazo das próteses valvulares.