Port-access approach for cardiac surgical procedures: our experience in 776 patients.
BACKGROUND: Recent advances in minimally invasive technology has expanded the application of the right thoracotomy approach for mitral valve surgery and atrial septal defect closure. The present study examines the feasibility, safety and efficacy of this technique. METHODS AND RESULTS: Between September 1997 and December 2004, 430 patients underwent mitral valve surgery through right anterolateral thoracotomy. The mitral valve was repaired in 62 patients, and 368 patients underwent mitral valve replacement. During same period, 336 patients underwent surgical closure of atrial septal defect. In all cases femoral artery and femoral venous cannulation was used for cardiopulmonary bypass. There was no approach-related limitation to surgical exposure, nor complication in cannulation of femoral vessels through the groin. Mean duration of cardiopulmonary bypass and cross-clamp time was 90 +/- 48 min and 51 +/- 29 min, respectively. Mean intubation time was 14.8 hours (range: 8-28 hours). Mean duration of intensive care andhospital stay was 26 hours (range: 18-38 hours) and 7 days (range: 5-17 days), respectively. In the atrial septal defect group, the mean cardiopulmonary bypass time and aortic cross-clamp time was 29 +/- 14 min and 19 +/- 8 min, respectively. Mean intensive care unit stay and mean hospital stay was 9.8 +/- 2.6 hours and 4.0 +/- 1.9 days, respectively. Hospital mortality was 0.46% (2/430) in the mitral valve group while there was no hospital mortality in atrial septal defect group. At a mean follow-up of 38.0 +/- 6.2 months there was one late death and two re-operations in the patients who underwent mitral valve surgery. CONCLUSIONS: Port-access approach is safe, offers faster recovery, cosmetic advantage, more patient satisfaction: it obviates the complications due to re-entry in redo cases and offers same efficacy as conventional operation. Furthermore, it is an excellent approach for mitral valve surgery in patients who had previous cardiac procedures. It has become our standard approach for repair of atrial septal defect and isolated mitral valve procedures.[1]References
- Port-access approach for cardiac surgical procedures: our experience in 776 patients. Mishra, Y.K., Khanna, S.N., Wasir, H., Sharma, K.K., Mehta, Y., Trehan, N. Indian heart journal. (2005) [Pubmed]
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