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Updated: Dec 29, 2025
Patch Angioplasty in the Rat Aorta or Inferior Vena Cava
Published on: February 27, 2017
How to anastomose a patch to avoid residual leak in the infarct exclusion method
Hideki Kitamura1, Yutaka Koyama1, Mototsugu Tamaki1
1Department of Cardiovascular Surgery, Nagoya Heart Center, Nagoya, Aichi, Japan.
Background And Aim:
Postinfarction ventricular septal defect is a potentially lethal complication of acute myocardial infarction for which surgical repair is mandatory. The infarct exclusion method has contributed to improving surgical outcomes, but a certain percentage of residual leakage continues to be reported. We considered possible mechanisms of residual leakage and modified the sewing method to overcome these mechanisms.
Method:
A bovine pericardial patch and a Teflon felt strip between the patch and endocardium to achieve good fit were used. The patch and felt were anchored with U stay sutures and reinforced with a running suture.
Results:
Use of the modified method in seven cases showed improved outcomes. Only one patient had trivial leakage, compared to nine cases using the older method; six of nine patients had residual leaks, including three minor ones.
Conclusions:
Our method is a rational approach that effectively reduces residual leakage.
