Delayed closure of postinfarction ventricular septal rupture

Area of Science:

• Cardiovascular Surgery
• Cardiac Repair Techniques
• Myocardial Infarction Complications

Background:

• Postinfarction ventricular septal rupture (VSR) is a rare but serious complication of acute myocardial infarction.
• Delayed surgical intervention is often necessary for VSR, but carries significant risks.
• Traditional repair methods may be associated with high rates of residual shunting and mortality.

Observation:

• A patient with postinfarction VSR, hemodynamically stabilized with an intra-aortic balloon pump 21 days post-myocardial infarction, was selected for surgical repair.
• A modified infarction exclusion technique was employed, utilizing Dacron patches to exclude the infarcted septum.
• The VSR was then closed using a second Dacron patch.

Findings:

• The described two-Dacron patch technique successfully repaired the postinfarction VSR.
• The patient experienced a favorable three-year post-operative outcome with normal cardiac function and no residual shunt.
• Good ventricular kinesis was maintained, indicating preserved cardiac function post-repair.

Implications:

• This modified infarction exclusion technique offers a viable and effective option for delayed VSR repair.
• The use of Dacron patches for septal exclusion and VSR closure demonstrates promising long-term results.
• This approach may improve outcomes for patients with complex post-myocardial infarction VSR.