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Ann Thorac Surg 2001;72:S1050-S1054
© 2001 The Society of Thoracic Surgeons

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Supplement: Cardiothoracic techniques and technologies

Minimally invasive video-assisted mitral valve surgery: our lessons after a 4-year experience

^a Department of Cardiovascular and Thoracic Surgery, Onze Lieve Vrouw Ziekenhuis, Aalst, Belgium

Address reprint requests to Dr Vanermen, Department of Cardiovascular and Thoracic Surgery, OLV Ziekenhuis, Moorselbaan 164, 9300 Aalst, Belgium
e-mail: hugo.vanermen{at}olvz-aalst.be

Presented at the Seventh Annual Cardiothoracic Techniques and Technologies Meeting 2001, New Orleans, LA, Jan 24–27, 2001.

Background. Right thoracotomy is a well known alternative to median sternotomy to gain access to the left atrium. To avoid the potential drawbacks associated with sternotomy coupled to the desire for a smaller scar and a more rapid rehabilitation in young and active patients, we investigated the purported advantages in patients undergoing video-assisted Port-Access mitral valve surgery.

Methods. Between February 1997 and November 2000, 175 patients (94 men, 81 women) with a mean age of 60 years (range 25 to 84) underwent either Port-Access mitral valve repair (n = 117) or replacement (n = 57) for degenerative disease (n = 112), rheumatic disease (n = 36), chronic endocarditis (n = 15), annular dilatation (n = 8), sclerotic disease (n = 2), and ingrowing myxoma (n = 1). There was one closure of a preexisting paravalvular leak. Standard Carpentier-Edwards repair procedures were used in all patients; in 14 patients polytetrafluoroethylene chordae were inserted for anterior leaflet prolapse. A total of 74 patients (42%) were in New York Heart Association functional class III/IV.

Results. Hospital mortality was 1.1% (n = 2). Four patients had conversion to sternotomy and conventional extra corporeal circulation for repair of a dissected aorta (n = 2) or the inabilty to proceed to a safe femoral cannulation (n = 2). Sixteen patients (9%) underwent a revision for bleeding. Mean cross-clamp time and perfusion time was 95 minutes (range 24 to 160) and 135 minutes (range 75 to 215) respectively. Mean intensive care unit and total hospital stay was 1.8 days (1 to 30) and 8.7 days (4 to 36), respectively. Three patients experienced late acute endocarditis: 2 had late mitral valve replacements and 1 patient had medical therapy for late prosthetic valve endocarditis. There were no myocardial infarctions, cerebrovascular events or peripheral ischemia due to thromboembolic phenomena. No wound complications were observed. The degree of patient satisfaction was very high.

Conclusions. The video-assisted Port-Access mitral valve approach is a valid alternative to sternotomy, with the same standards of results and quality.

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