What is the mortality and morbidity associated with anomalous left coronary artery from the pulmonary artery (ALCAPA)?

Updated: Aug 10, 2020
  • Author: Mary C Mancini, MD, PhD, MMM; Chief Editor: Syamasundar Rao Patnana, MD  more...
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Answer

Early diagnosis of anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) using echocardiography with color flow mapping and improvements in surgical techniques (eg, myocardial preservation) dramatically improve prognosis.

Left untreated, the mortality rate in the first year of life is 90% secondary to myocardial ischemia or infarction and mitral valve insufficiency leading to congestive heart failure. Sudden death may occur because of inadequate collateral circulation between the left and right coronary artery systems and/or development of arrhythmia.


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