Surgical repair of a posterior left ventricular aneurysm in a 4-year-old boy.

Left ventricular aneurysms are rarely encountered in pediatric patients. A 4-year-old boy was diagnosed with severe mitral regurgitation and a posterior left ventricular aneurysm associated with a viral infection. The aneurysm was surgically resected and plicated longitudinally with a combination of an interrupted mattress and continuous over-and-over sutures with an outer felt reinforcement. The mitral regurgitation was reduced to a trivial degree postoperatively. The patient's postoperative recovery was good. He was discharged 31 days after surgery without cardiac dysfunction or lethal arrhythmia. Considering the location and spread of the aneurysm, an appropriate surgical procedure should be adopted for pediatric patients.