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Left ventricular free wall rupture after surgery for ventricular septal rupture
Tomoya Uchimuro1, Motohiko Osako1, Tetsuya Gotou1
1Department of Cardiovascular Surgery, National Hospital Organization Tokyo Medical Center, Tokyo, Japan.
Insights
Late left ventricular free wall rupture occurred 1 month post-surgery due to residual infarcted myocardium. Improved surgical technique, including secure patch placement, is crucial for preventing such complications after myocardial infarction repair.
Area of Science:
- Cardiovascular Surgery
- Cardiac Repair
- Myocardial Infarction Management
Background:
- The case involves a 67-year-old man with a history of inferoposterior acute myocardial infarction.
- The patient underwent an extended sandwich technique via a right ventricular incision to repair a ventricular septal rupture.
Observation:
- A late left ventricular free wall rupture was observed 1 month after the initial surgical procedure.
- The rupture was associated with left ventricular aneurysm formation attributed to residual infarcted myocardium.
Findings:
- The residual infarcted myocardium was identified as the cause of left ventricular aneurysm and subsequent free wall rupture.
- Surgical technique critique highlighted the need for more secure pericardial patch placement on the left ventricular side, further from the septal defect, using a larger needle.
Implications:
- Properly securing the left ventricular patch is vital for excluding free wall infarction and reducing stress on the suture line.
- This case underscores the importance of meticulous surgical technique in preventing late complications after complex cardiac repairs.
Abstract:
A 67-year-old man presented with late left ventricular free wall rupture 1 month after an extended sandwich technique through a right ventricular incision for ventricular septal rupture following an inferoposterior acute myocardial infarction. We found that residual infarcted myocardium had led to left ventricular aneurysm formation. A pericardial patch on the left ventricular side at the initial operation should have been secured further from the septal defect using a larger needle. A patch on the left ventricular side is important for complete exclusion of a free wall infarction and for decreasing the stress on the suture line securing the patch.
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