[Surgical treatment for postinfarction ventricular septal perforation]

Area of Science:

• Cardiovascular Surgery
• Interventional Cardiology
• Cardiac Pathology

Context:

• Ventricular septal perforation (VSP) is a rare but catastrophic complication of acute myocardial infarction.
• Surgical intervention is often necessary but associated with significant risks.
• Comparing different surgical techniques is crucial for improving patient outcomes.

Purpose:

• To compare the efficacy and safety of the infarct exclusion technique versus the trans right ventricular (RV) approach for surgical VSP repair post-myocardial infarction.
• To evaluate operative death rates, extracorporeal circulation time, and specific causes of mortality between the two surgical methods.

Summary:

• Sixteen patients with post-myocardial infarction VSP underwent surgical repair between 1985 and 2003, divided into infarct exclusion (n=10) and trans RV (n=6) groups.
• Both groups had high operative mortality rates (50% and 67%, respectively).
• The infarct exclusion group experienced longer cardiopulmonary bypass times but avoided mortality from left ventricle free wall rupture, unlike the trans RV group (3 deaths).

Impact:

• The infarct exclusion technique is favored for VSP repair due to a lower incidence of fatal left ventricle rupture, despite longer procedural times.
• This study guides the selection of surgical strategies for complex cardiac defects following myocardial infarction.
• Findings contribute to optimizing surgical management protocols for post-infarction VSP.