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Unusual complication of apicoaortic conduit: left main coronary artery thrombosis

Ghassan Sleilaty1, Philippe de Lentdecker, Francois Thaler

  • 1Department of Cardiovascular Surgery, Foch Hospital, 40 rue Worth, 92151 Suresnes, France. gsleilaty@yahoo.com

The Annals of Thoracic Surgery
|July 30, 2010
PubMed

Insights

Aortic valve replacement can lead to left main coronary artery thrombosis due to altered blood flow from prior apicoaortic conduit surgery. This rare complication resulted in fatal multiple organ failure despite intervention.

Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Cardiac Physiology

Background:

  • Aortic valve regurgitation necessitates surgical intervention, with aortic valve replacement (AVR) being a common treatment.
  • Apicoaortic conduit (AAC) implantation is a less common procedure used for specific complex cardiac conditions.
  • The interplay between prior AAC and subsequent AVR is not well-documented regarding coronary artery complications.

Observation:

  • A patient with a history of AAC implantation developed left main coronary artery thrombosis 7 days post-AVR for native aortic valve regurgitation.
  • The thrombosis was attributed to altered hemodynamics, specifically cardiac output deviation through the AAC, causing turbulent flow in the ascending aorta.

Findings:

  • The altered flow dynamics post-AVR in a patient with a prior AAC created an environment conducive to thrombus formation in the left main coronary artery.
  • Thrombus aspiration provided only temporary relief, highlighting the severity of the underlying hemodynamic issue.

Implications:

  • This case underscores the potential risk of coronary artery thrombosis following AVR in patients with prior AAC.
  • Careful hemodynamic assessment and consideration of altered flow patterns are crucial in managing patients with complex cardiac histories.
  • Further research is warranted to elucidate the precise mechanisms and develop preventative strategies for this rare but devastating complication.

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