Background
The feasibility and safety of minimally invasive mitral valve (MV) repair using Port-access approach was previously demonstrated. We report our late outcomes of 100 consecutive cases of port-access approach for mitral valve (MV) repair.
Methods
From 2004 to 2014, 894 patients underwent MV repair. From this cohort, 100 patients (11%) underwent minimal invasive MV repair (peripheral cannulation, endo-baloon, thoracoscopic assisted). Mean age was 50±12, and 72 were males (72%).
Results
There was no early death. Operative, bypass and clamp time were 363±56, 139±27 and 97±18 minutes for the first 50 cases and 345±58, 125±23 and 86±19 minutes for the second 50 patients. Mean hospital stay was 5±1 days. Early post-operative echocardiography showed that 3 patients (3%) had more than grade 2 mitral regurgitation (MR). Major complications included: reopen in 1 patient, TIA in 2(2%) patients and significant kidney injury in 4(4%) patients (non needed dialysis). Follow up was complete, ranged 1-128 months, with mean of 39±33 months, and overall 321 years of patients follow up. At latest follow up 92 (92%) were in NYHA class I or II.
There was 1(1%) late death from unknown reason. Freedom from reoperation due to recurrent MR on the MV was 96%. Late echocardiography revealed that 89(89%) had up to mild MR, 10(10%) moderate and 1(1%) severe MR.
Conclusions
Mitral valve repair with minimal invasive port-access approach is safe and has similar late results to conventional median sternotomy approach.
