RESUMEN
OBJECTIVE: To evaluate clinically and by Doppler Echocardiography 22 patients submitted to mitral valve repair after valvular regurgitation using standardized bovine pericardium chordae. METHODS: The patients had degenerative mitral regurgitation. Fourteen (63.6%) patients were male and the age ranged from 19 to 76 years (mean 56.8 ± 13.8 years). The strings of bovine pericardium treated with glutaraldehyde were reinforced in its transverse ends forming a trapezoid. RESULTS: One patient (4.5%) died in the immediate postoperative period with in low cardiac output syndrome and three (13.6%) in the late postoperative period. One patient (4.5%) was reoperated. The actuarial curves for survival free of death from cardiovascular causes and free from reoperation for patients who left the hospital (21), showed rates of 82.0 ± 9.8% and 83.9 ± 10.4% at 70 months postoperatively, respectively. Seventeen patients (77.3%) are alive with native valves. Of the 17 patients alive with native valves 16 (94.1%) were in functional class I. The Doppler Echocardiography postoperatively (mean 41 months, 4-70 months), showed no mitral regurgitation in 11 (64.7%) patients and mild regurgitation in five (29.4%). CONCLUSION: The technique of standard cords of bovine pericardium implantation to replace chordae tendineae of the mitral valve in patients with degenerative mitral regurgitation showed satisfactory results.
Asunto(s)
Bioprótesis , Cuerdas Tendinosas/lesiones , Prótesis Valvulares Cardíacas , Insuficiencia de la Válvula Mitral/cirugía , Válvula Mitral/cirugía , Pericardio/trasplante , Adulto , Anciano , Cuerdas Tendinosas/cirugía , Ecocardiografía Doppler , Femenino , Humanos , Masculino , Persona de Mediana Edad , Válvula Mitral/fisiopatología , Insuficiencia de la Válvula Mitral/fisiopatología , Insuficiencia de la Válvula Mitral/rehabilitación , Periodo Posoperatorio , Rotura Espontánea/cirugía , Tasa de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJETIVO: Avaliar, clinicamente e pelo ecodopplercardiograma, o funcionamento da valva mitral em 22 pacientes submetidos à correção do refluxo valvar com substituição das cordas tendíneas nativas por cordas padronizadas de pericárdio bovino. MÉTODOS: Os pacientes apresentavam insuficiência mitral degenerativa. Quatorze (63,6%) pacientes eram do gênero masculino e a idade variou de 19 a 76 anos (média 56,8±13,8 anos). As cordas de pericárdio bovino foram tratadas com glutaraldeído, com reforço de suas extremidades transversais formando um trapézio. RESULTADOS: Um (4,5%) paciente faleceu no pós-operatório imediato em síndrome de baixo débito cardíaco e três (13,6%) no pós-operatório tardio. Uma (4,5%) paciente foi reoperada. As curvas atuariais de sobrevivência livre de óbitos por causa cardiovascular e livres de reoperações para os pacientes que deixaram o hospital (21) demonstraram taxas de 82,0±9,8% e 83,9±10,4%, aos 70 meses de pós-operatório, respectivamente. Dezessete (77,3%) pacientes estão vivos com a própria valva. Dos 17 pacientes vivos com a própria valva 16 (94,1%) estão em classe funcional I. O ecodoppler pós-operatório (média de 41 meses; 4 a 70 meses) demonstrou ausência de regurgitação mitral em 11 (64,7%) pacientes e regurgitação discreta em cinco (29,4%). CONCLUSÃO: A técnica de implante de cordas padronizadas de pericárdio bovino para substituição de cordas tendíneas da valva mitral em pacientes com insuficiência mitral degenerativa demonstrou resultados bastante satisfatórios.
OBJECTIVE: To evaluate clinically and by Doppler Echocardiography 22 patients submitted to mitral valve repair after valvular regurgitation using standardized bovine pericardium chordae. METHODS: The patients had degenerative mitral regurgitation. Fourteen (63.6%) patients were male and the age ranged from 19 to 76 years (mean 56.8 ± 13.8 years). The strings of bovine pericardium treated with glutaraldehyde were reinforced in its transverse ends forming a trapezoid. RESULTS: One patient (4.5%) died in the immediate postoperative period with in low cardiac output syndrome and three (13.6%) in the late postoperative period. One patient (4.5%) was reoperated. The actuarial curves for survival free of death from cardiovascular causes and free from reoperation for patients who left the hospital (21), showed rates of 82.0 ± 9.8% and 83.9 ± 10.4% at 70 months postoperatively, respectively. Seventeen patients (77.3%) are alive with native valves. Of the 17 patients alive with native valves 16 (94.1%) were in functional class I. The Doppler Echocardiography postoperatively (mean 41 months, 4-70 months), showed no mitral regurgitation in 11 (64.7%) patients and mild regurgitation in five (29.4%). CONCLUSION: The technique of standard cords of bovine pericardium implantation to replace chordae tendineae of the mitral valve in patients with degenerative mitral regurgitation showed satisfactory results.