• Andrés M Pineda, Orlando Santana, Mery Cortes-Bergoderi, and Joseph Lamelas.
• Division of Cardiology, Columbia University, Mount Sinai Heart Institute, Miami Beach, FL 33140, USA.
• Interact Cardiovasc Thorac Surg. 2013 Jun 1;16(6):875-9.

AbstractA best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was 'is a minimally invasive approach for resection of benign cardiac masses superior to standard full sternotomy?' A total of 50 papers were found using the reported search, of which, 11 represented the best evidence to answer the clinical question. The authors, country, journal, date of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. All 11 papers were retrospective studies, from which 4 were case-control studies comparing the minimally invasive approach with conventional full sternotomy, and 7 were case series. There were two minimally invasive techniques used, a right mini-thoracotomy and a partial hemi-sternotomy, the former being the most commonly used. The resection of benign cardiac masses is a low-risk procedure, with no mortality or conversions to full sternotomy reported. From the 4 case-control studies, cross-clamp time was similar in both groups, and only one report found a prolonged perfusion time with the minimally invasive approach. The incidence of major postoperative complications, including bleeding requiring reoperation (average from case-control studies: 0-4.5 vs 0-5.8%), renal failure (0 vs 0-10%) and prolonged ventilation (6-13 vs 11-19%), for the two approaches was similar. The incidence of postoperative stroke was better for the minimally invasive approach in one study (0 vs 14%, P = 0.023). The main advantages of this technique are shorter intensive care unit (26-31 vs 46-60 h) and hospital stay (3.6-5.2 vs 6.2-7.4 days), the minimally invasive approach being significantly better in one and three reports, respectively. We conclude that minimally invasive resection of a benign cardiac mass using a right mini-thoracotomy approach can be performed with an operative morbidity and mortality at least similar to the standard full sternotomy approach. The information currently available for the minimally invasive approach for the resection of benign cardiac masses is limited and based only on retrospective studies and, therefore, prospective studies are required to confirm the potential benefits of minimally invasive surgery.

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