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Coronary ostial stenosis after aortic valve replacement
Biagio Tomasco1, Maurilio Di Natale, Carmine Minale
1Division of Cardiovascular Surgery, Cardiovascular Department, San Carlo Hospital, Potenza, Italy.
Insights
Coronary ostial stenosis, a serious complication after aortic valve replacement, was successfully treated with urgent revascularization. This case highlights effective management for this rare but life-threatening condition.
Area of Science:
- Cardiovascular Surgery
- Cardiac Surgery Complications
- Interventional Cardiology
Background:
- Aortic valve replacement (AVR) is a common procedure.
- Coronary ostial stenosis (COS) is a rare but severe complication post-AVR.
- COS can lead to myocardial ischemia and infarction.
Observation:
- A patient presented with symptoms of coronary insufficiency 4 months post-AVR.
- Coronary angiography revealed 99% stenosis of the left main stem.
- Intraoperative findings showed a dense fibrous reaction in the aortic root affecting the left coronary ostium.
Findings:
- Urgent revascularization was performed for the critical left main stem stenosis.
- The fibrous reaction compressing the left coronary ostium was identified as the cause.
- The patient experienced an uneventful recovery and remained asymptomatic post-procedure.
Implications:
- This case underscores the importance of considering COS in patients with ischemic symptoms after AVR.
- Prompt diagnosis and surgical intervention are crucial for favorable outcomes.
- Understanding the pathogenetic mechanisms of COS post-AVR can guide preventative strategies.
Abstract:
Coronary ostial stenosis is a life-threatening complication of aortic valve replacement. We describe the case of a patient who developed symptoms and signs related to coronary insufficiency 4 months after aortic valve replacement. In view of a coronary angiogram revealing a 99% left main stem stenosis, an urgent revascularization procedure was performed. Intraoperative inspection revealed a dense fibrous reaction of the aortic root involving the left coronary ostium. The postoperative course was uneventful and since the operation the patient remained asymptomatic. The possible mechanisms involved in the pathogenesis of coronary ostial stenosis after aortic valve replacement and the surgical strategy to be employed for the treatment of this complication are discussed.