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Ann Thorac Surg 2001;71:78-85
© 2001 The Society of Thoracic Surgeons
a Department of Cardiovascular Surgery, General Hospital Wels, Wels, Austria
b Department of Cardiology, General Hospital Wels, Wels, Austria
c Department of Cardiology, University Clinic Innsbruck, Innsbruck, Austria
Accepted for publication August 24, 2000.
Address reprint requests to Dr Ng, Department of Cardiovascular Surgery, General Hospital Wels, Grieskirchnerstr 42, A-4600 Wels/OOe, Austria
e-mail: verwaltung{at}khwels.at
Background. Severe mitral regurgitation associated with complex mitral valve disease often precludes successful surgical repair. The feasibility and the results of valvuloplasty with glutaraldehyde-treated autologous pericardium remain largely unknown.
Methods. The cases of 63 patients who underwent operation within an 11-year period were studied. A pretreated autologous pericardial patch was used for leaflet extension plasty, for paracommissural plasty, as a substitute for part of the leaflet, and for reimplantation of ruptured papillary muscles to eliminate severe mitral regurgitation. Patients with a severely calcified annulus after en bloc decalcification had straddling endoventricular pericardial patch annuloplasty for reconstruction of the affected atrioventricular groove. Chordal replacement with a strip of pericardium was chosen if no suitable chordae were available. Pericardium-reinforced suture annuloplasty was used in patients with acute endocarditis resistant to medical therapy. Associated valvuloplasty procedures with Carpentier techniques were also employed.
Results. There were no operative deaths in this series. At a mean follow-up of 61.1 months (range, 4 to 132 months), mitral regurgitation was absent or trivial in 92.1% of patients by echocardiography. Freedom from reoperation was 95.2% at 1 year and 5 years. Thromboembolic events have not been detected. Thirty percent of patients returned to sinus rhythm. Two patients required valve replacement.
Conclusions. Our beneficial results indicate that glutaraldehyde-treated autologous pericardium is suitable for valvuloplasty. It provides durable and predictable repair of valves that might otherwise need to be replaced because of the complex mitral valve disease. The technique is reliable, allows further efficacious repair possibilities, and improves postoperative outcomes. Whether it can prevent late deterioration and calcification requires more investigation.
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