Left Main Coronary Artery Dissection Complicating Valve Replacement Surgery

Area of Science:

• Cardiology
• Cardiac Surgery
• Interventional Cardiology

Background:

• Iatrogenic left main coronary artery dissection is a rare but potentially catastrophic complication during cardiac surgery.
• Management strategies for this condition remain inconclusive, posing a significant clinical challenge.

Observation:

• A middle-aged woman developed severe low cardiac output post-aortic and mitral valve replacement.
• She was diagnosed with extensive left main coronary artery dissection, affecting the left anterior descending and left circumflex arteries, leading to a large myocardial infarction.

Findings:

• The complex and dangerous left main coronary artery dissection was successfully treated using bailout stenting.
• This intervention effectively resolved the acute vascular lesion and stabilized the patient's condition.

Implications:

• Bailout stenting can be an effective strategy for managing iatrogenic left main coronary artery dissection.
• This case highlights a successful approach to a rare surgical complication, potentially guiding future management decisions.