Background: Although the port-access technique has been shown to be an effective and safe approach for cardiac surgery procedures it has never become routine practice, and it is still limited to few and selected centers. Furthermore, such technique has rarely been applied to treat left ventricle disease. In 1999 we introduced left ventricle aneurysm repair through a left minithoracotomy using the port-access technique. Here we present the results in terms of early and medium-term follow-up using such technique as a routine first choice approach for left ventricle endoplasty.
Methods: From 1999 to date, out of 38 patients undergoing left ventricle endoplasty (+/-associate procedures), mini-left thoracotomy and port-access techniques have been used in 32 patients (84%). All patients underwent endoventricular patch-repair with ventricular reshaping and associated procedures were performed in 8 patients.
Results: All patients survived the operation and were discharged from the hospital (30 days mortality 0%). Two patients (6.2%) experienced prolonged mechanical ventilations and 3 patients (9.3%) prolonged intensive care unit stay. Mean follow-up was 40+/-34 months (range, 2 to 105). One patient died during follow-up (cumulative mortality 3.3%). Follow-up revealed an improvement of hemodynamic performances (left ventricular ejection fraction 0.44+/-0.09 compared with 0.34+/-0.09 preoperatively, p=0.004) and improved clinical conditions (New York Heart Association class 1.4+/-0.5 compared with 2.3+/-1 preoperatively, p=0.003).
Conclusions: The port-access technique can be safely applied to perform left ventricle endoplasty through a left minithoracotomy. Such approach allows optimal surgical view and therefore optimal surgical correction. Based on our satisfactory experience we support left minithoracotomy as a valuable alternative approach for left ventricle endoplasty in view of an extended use of minimally invasive techniques.
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