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Mitral annular aneurysm resulting from subaortic muscle resection.
Manabu Watanabe1, Yorikazu Harada, Takamasa Takeuchi
1Department of Cardiovascular Surgery, Nagano Children's Hospital, Minamiazumi-gun, Japan. dookuman@beige.ocn.ne.jp
The Annals of Thoracic Surgery
|May 9, 2002
Summary
Mitral annular aneurysm, a rare complication after subaortic stenosis surgery, was successfully repaired. Disruption of the aorto-mitral fibrosa likely caused the aneurysm, which was diagnosed using transesophageal echocardiography.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery
- Medical Complications
Background:
- Subaortic stenosis requires surgical intervention.
- Mitral annular aneurysm is an exceptionally rare post-operative complication.
- The aorto-mitral intervalvular fibrosa is a critical anatomical structure.
Observation:
- A case of mitral annular aneurysm developed shortly after surgical relief of subaortic stenosis.
- The aneurysm was attributed to disruption of the aorto-mitral intervalvular fibrosa during the initial surgery.
- Preoperative transesophageal echocardiography provided detailed anatomical visualization.
Findings:
- Successful surgical repair of the mitral annular aneurysm was achieved.
- The repair preserved both aortic and mitral valvular functions.
- Transesophageal echocardiography proved valuable for precise diagnosis.
Implications:
- This case highlights a rare but serious complication following subaortic stenosis surgery.
- Early diagnosis and surgical intervention are crucial for favorable outcomes.
- Understanding the role of the aorto-mitral intervalvular fibrosa is important in preventing such complications.