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Eur J Cardiothorac Surg 2004;25:1025-1031
© 2004 Elsevier Science NL

Mid-term results of cardiac autotransplantation as method to treat permanent atrial fibrillation and mitral disease

Cardiac Surgery Unit, Poliambulanza Private Hospital, Via Bissolati 57, 25124 Brescia, Italy

Received 16 October 2003; received in revised form 24 December 2003; accepted 23 January 2004.

^* Corresponding author. Tel.: +39-030-3515534; fax: +39-030-3515244
e-mail: cch-segreteria.poli{at}poliambulanza.it

Objectives: The results of current surgical options for the treatment of permanent atrial fibrillation (AF) associated with mitral surgery are widely different, particularly in very enlarged left atria. The aim of this study was to assess the mid-term efficacy of cardiac autotransplantation for this goal, through a consistent reduction of left atrium volume and a complete isolation of the pulmonary veins. Methods: From April 2000 to September 2002, 30 patients (male/female 5/25) underwent cardiac autotransplantation for the treatment of mitral valve disease and concomitant permanent AF (>1 year). Surgical technique of bicaval heart transplantation was modified maintaining the connection of inferior vena cava in all but three cases. Twenty-eight patients had mitral valve replacement and two had mitral valve repair. Associated procedures were: aortic valve replacement (6 cases), tricuspid valve repair (2 cases), coronary re-vascularization (2 cases) and right atrium volume reduction (4 cases). Results: No hospital death occurred; 1 patient died 3 months post-operatively for pneumonia. At a mean follow-up of 21.1±7.7 months (range 6–35), 26 patients (89.7%) were in sinus rhythm and 3 (10.3%) in AF. Santa Cruz Score was 0 in 3 patients, 2 in 2 patients and 4 in the remaining 24 patients (82.7%). Mean left atrial diameter and volume decreased from 65.1±16.4 mm (range 50–130 mm) to 49.9±8.4 mm (range 37–78) (P<0.001) and from 118.3±68.4 ml (range 60–426) to 69.4±34.1 ml (range 31–226) (P=0.001), respectively, after the operation. Conclusions: Cardiac autotransplantation is a safe and effective option for the treatment of permanent AF in patients with mitral valve disease and severe dilation of left atrium.

Key Words: Permanent atrial fibrillation • Mitral valve disease • Left atrial volume reduction • Cardiac autotransplantation

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