Surgical treatment of post-infarction left ventricular pseudoaneurysm: Case series highlighting various surgical strategies.

INTRODUCTION AND OBJECTIVE: The left ventricular pseudoaneurysm (LVP) is rare, the surgical experience is limited and its surgical treatment remains still a challenge with an elevated mortality. Herein, it is presented a retrospective analysis of our experience with acquired post infarct LVP over a10-year period.

MATERIALS AND METHODS: Between January 2006 through August 2016, a total of 13 patients underwent operation for post infarct pseudoaneurysm of the left ventricle. There were 10 men and 3 women and the mean age was 61 ± 7.6 years. 4 patients presented acute LVP. Two patients had preoperative intraortic balloon pump implantation.

RESULTS: Various surgical techniques were used to obliterate the pseudoaneurysm such as direct pledgeted sutures buttressed by polytetrafluoroethylene felt, a Gore-Tex or Dacron patch, transatrial closure of LVP neck in submitral pseudoaneurysm, or linear closure in cases presenting associated postinfarct ventricular septal defect. Concomitant coronary artery bypasses were performed for significant stenoses in 12 patients, ventricular septal defect closure in 4 patients, mitral valve replacement in 3 and aortic valve replacement in 1 patient. Operative mortality was 30.8% (4 patients). Three of them were acute LVP. Three patients required the continuous hemodyalisis and 8 patients required intra-aortic balloon pump. At follow-up two deaths occurred at 1 and 3 years after surgery.

CONCLUSION: In conclusion, this study revealed that surgical repair of post infarct left ventricular pseudoaneurysm was associated with an acceptable surgical mortality rate, that cardiac rupture did not occur in surgically treated patients.