Risk Factors of Posterior Pericardial Annuloplasty for Isolated Posterior Leaflet Prolapse

• Published in: The Annals of thoracic surgery Vol. 80; no. 3; pp. 820 - 824
• Main Authors: Matsukuma, Seiji, Eishi, Kiyoyuki, Yamachika, Shiro, Yamaguchi, Hiroichiro, Ariyoshi, Tsuneo, Hisata, Youichi, Tanigawa, Kazuyoshi, Izumi, Kenta, Takai, Hideaki
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01.09.2005; Elsevier Science
• Subjects: Atrial Function, Left; Biological and medical sciences; Bioprosthesis; Cardiac Surgical Procedures - statistics & numerical data; Female; Follow-Up Studies; Heart Valve Prosthesis; Humans; Male; Medical sciences; Middle Aged; Mitral Valve Prolapse - surgery; Multivariate Analysis; Pericardium - transplantation; Recurrence; Retrospective Studies; Risk Factors; Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases; Surgery of the respiratory system; Ventricular Function, Left; 35; Prolapsus; Treatment; Respiratory disease; Surgery; Risk factor; Posterior; Thorax; Annuloplasty; In vitro; Prolapse; Pericardium
• ISSN: 0003-4975; 1552-6259
• DOI: 10.1016/j.athoracsur.2005.03.100

Posterior autologous pericardial annuloplasty is an option in mitral valve repair. However, the durability of posterior pericardial annuloplasty remains controversial. From June 1999 to July 2004, 49 patients (18 male and 31 female; mean age, 64 ± 12 years) with isolated posterior leaflet prolapse received posterior autologous pericardial annuloplasty. Transthoracic echocardiographic examination before the operation, at the time of discharge, and then annually was performed and analyzed. There was no incidence of in-hospital or late death. Only 1 patient (2.1%) required reoperation. In terms of recurrent mitral regurgitation, 31 patients (64.6%) exhibited grade 0 mitral regurgitation, 7 patients (14.6%) exhibited grade 1, and 9 patients (18.8%) exhibited grade 2, whereas only 1 patient (2.0%) exhibited more than grade 3. In terms of predicting postoperative recurrence of significant mitral regurgitation (≥grade 2), multivariate Cox analysis demonstrated that marked left atrial dilatation and high fractional shortening were independent risk factors. In 8 of 10 patients significant mitral regurgitation recurred after discharge. In terms of left atrial dimension, no significant reduction was observed in the postdischarge recurrent group, and there was a significant difference of left atrial dimension between the postdischarge recurrent group and the nonrecurrent group at the time of discharge. The merits of mitral valve repair using posterior autologous pericardial annuloplasty are attractive. However, its use should be limited in selected patients with isolated posterior leaflet disease, nonenlarged atria, and non-high fractional shortening to maintain the durability of the mitral valve repair.