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Ann Thorac Surg 2006;82:1103-1106
© 2006 The Society of Thoracic Surgeons

Case report

Partial Hammock Valve: Surgical Repair in Adulthood

José I. Aramendi, MDa,*, Miguel A. Rodríguez, MDa, Roberto Voces, MDa, Pedro Pérez, MDb, David Rodrigo, MDb

a Division of Cardiac Surgery, Hospital de Cruces, Barakaldo, Vizcaya, Spain
b Division of Cardiology, Hospital de Cruces, Barakaldo, Vizcaya, Spain

Accepted for publication December 20, 2005.

* Address correspondence to Dr Aramendi, Division of Cardiac Surgery, Hospital de Cruces, Plaza de Cruces, Barakaldo, Vizcaya, 48903 Spain (Email: jiaramendi{at}hcru.osakidetza.net).

We describe a forme frustrée of hammock valve involving only the posterior mitral leaflet. Three adult patients were referred to surgery with the diagnosis of severe mitral regurgitation due to fibrosis of the posterior mitral leaflet. The final diagnosis was done intraoperatively. In all of them the posterior leaflet was attached to some accessory papillary muscles arranged en palisade, with three to four fused muscle heads producing restrictive leaflet motion in systole. Repair consisted in division of the papillary muscles, patch augmentation, and ring annuloplasty. This previously unreported lesion is congenital but manifests itself in adulthood.






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