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ALCAPA

Case contributed by Dr Annette Johnstone

Presentation

Chest pain and shortness of breath on exertion.

Patient Data

Age: 30 years
Gender: Female
CT

Anomalous left coronary artery vessel originating from the main pulmonary artery.  A very small caliber left main stem (LM) can be see, with marked collateral vessels.

Case Discussion

ALCAPA can present in two ways: 

Infantile - no collaterals, RCA and LAD are normal caliber. This can lead to ischemic cardiomyopathy secondary to infarction.

Adult - retrograde flow collaterals from RCA to LAD with dilatation from increased flow. This can lead to chronic myocardial ischemia, arrhythmia and sudden death.

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Case information

rID: 81632
Published: 31st Aug 2020
Last edited: 1st Sep 2020
System: Cardiac
Inclusion in quiz mode: Included
Institution: Leeds Teaching Hospitals NHS Trust

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