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Ann Thorac Surg 2006;82:2096-2101
© 2006 The Society of Thoracic Surgeons

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Original Articles: Cardiovascular

Large Annuloplasty Rings Facilitate Mitral Valve Repair in Barlow’s Disease

Department of Cardiothoracic Surgery, Mount Sinai Medical Center, New York, New York

Accepted for publication June 9, 2006.

^_* Address correspondence to Dr Adams, Department of Cardiothoracic Surgery, Mount Sinai Medical Center, 1190 Fifth Ave, New York, NY 10029-1028. (Email: david.adams{at}mountsinai.org).

Presented at the Forty-second Annual Meeting of The Society of Thoracic Surgeons, Chicago, IL, Jan 30–Feb 1, 2006.

BACKGROUND: Excess leaflet tissue in Barlow’s disease predisposes patients to left ventricular outflow tract obstruction and residual mitral regurgitation after mitral valve repair as a result of systolic anterior motion of the anterior mitral leaflet. In addition to conventional repair techniques such as sliding plasty and leaflet shortening, our approach in Barlow’s disease has included the use of large remodeling annuloplasty rings (up to size 40 mm). We report our experience with the use of large rings in Barlow’s disease.

METHODS: From January 2002 to December 2005, 67 patients with Barlow’s disease (46 men and 21 women; median age, 55 years; range, 22 to 85 years), mean ejection fraction 0.55 ± 0.08, and grade 3+ or greater mitral regurgitation underwent mitral valve repair. All had Carpentier type II leaflet dysfunction, with anterior (n = 2), posterior (n = 41), or bileaflet (n = 24) prolapse. Predominant reconstructive techniques were posterior leaflet sliding plasty/plication (n = 65), anterior leaflet triangular resection (n = 16), and chordal transfer (n = 25). Concomitant procedures included coronary artery bypass grafting surgery (n = 8), tricuspid valve repair (n = 20), aortic valve replacement (n = 3), and CryoMaze (n = 22).

RESULTS: Mitral valve repair was successfully completed in all patients. Annuloplasty ring size was 36 mm (n = 17), 38 mm (n = 22), and 40 mm (n = 28). Predischarge transthoracic echocardiography showed absence of systolic anterior motion (n = 67), no or trace mitral regurgitation (n = 62), and mild mitral regurgitation (n = 5). There was no operative mortality.

CONCLUSIONS: Mitral valve repair can be predictably performed in Barlow’s disease with excellent early outcomes. Large annuloplasty rings help minimize the risk of systolic anterior motion and are an important adjunct to established repair techniques in this patient cohort with large annular size and excess leaflet tissue.

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