Mitral surgery after prior cardiac operation: port-access versus sternotomy or thoracotomy.
BACKGROUND: In reoperation for mitral valve disease, minimally invasive Port-Access (PORT) is a new alternative to standard median sternotomy (STER) or right thoracotomy (THOR); yet, the results of PORT in this setting have not been defined. The aim of this study was to evaluate the results of minimally invasive thoracotomy in reoperation for mitral valve disease. METHODS: Retrospective results are reported for three consecutive series of patients undergoing reoperation for mitral disease using either PORT (n = 60, 1996 to 2001), THOR (n = 37, 1985 to 1997), or STER (n = 155, 1985 to 1997). RESULTS: Red cell transfusion was 3 +/- 4, 14 +/- 13, and 12 +/- 12 units for PORT, THOR, and STER, respectively. Chest tube output was 352 +/- 361, 2048 +/- 3166, and 1683 +/- 3939 mL, respectively. Cardiopulmonary bypass times for these groups were 208 +/- 76 vs. 158 +/- 56 vs. 157 +/- 53 minutes. Thirty-day mortality was 0/60 (0%), 8/37 (22%), and 21/155 (14%), respectively. CONCLUSIONS: This early clinical experience suggests that PORT is an acceptable alternative to THOR or STERN in reoperation for mitral valve disease, with potential advantages of avoiding redo sternotomy and reducing the surgical incision. However, these benefits may come at the expense of longer cardiopulmonary bypass times.
Burfeind, WR; Glower, DD; Davis, RD; Landolfo, KP; Lowe, JE; Wolfe, WG
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