The transvalvar gradient after the aortic porcine stented valve replacement can be predicted?

• Autor(a) principal: Rocha,Eduardo Augusto Victor
• Data de Publicação: 2003
• Outros Autores: Rabello,Renato Rocha, Oliveira,Sérgio Caporali de, Tito,Marcus Gustavo, Cataldo,Pollyana Cardoso Freire, Oliveira,Homero Geraldo de
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Journal of Cardiovascular Surgery (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382003000200011
• topic: Heart valve prosthesis implantation; Heart valve diseases; Aortic valve/surgery

OBJECTIVE: This work aimed at establishing scientific criteria using the valve size mismatch to predict the transvalvar gradient resultant of aortic valve replacement. METHOD: Thirty-one consecutive patients who survived aortic valve replacement surgeries using Labcor porcine stented prosthesis, in the period from March 1993 to June 2002 were studied. Each patient was submitted to an echocardiogram within three postoperative months at the same institution. The mean transvalvar gradient pressure was compared with the diameter of the prosthesis and the patient's body surface area. RESULTS: The p-value for the diameter of the prosthesis was 0.81 and 0.59 for the R Index. CONCLUSION: No relation at all was found to help to predict the postoperative pressure gradient, based on the prosthesis size and the body surface area of the patients.