Acquired left coronary artery fistula draining to the right ventricle after myocardial infarction

Area of Science:

• Cardiovascular Medicine
• Interventional Cardiology
• Cardiac Imaging

Background:

• Myocardial infarction (MI) can lead to various cardiac complications.
• Coronary artery anomalies are rare but significant findings.
• Understanding post-MI cardiac changes is crucial for patient management.

Observation:

• Coronary arteriography revealed an unusual communication between the left anterior descending artery and the right ventricle.
• This fistula was identified one month after the patient experienced a myocardial infarction.
• The fistula's location did not correlate with the infarction site identified by electrocardiogram and prior angiography.

Findings:

• A spontaneous coronary artery fistula developed in a 42-year-old male post-myocardial infarction.
• The exact mechanism of fistula formation in this case remains undetermined.
• Evidence suggests myocardial infarction may induce the spontaneous development of coronary anomalies through angiogenesis.

Implications:

• This case highlights a rare, potentially novel complication of myocardial infarction.
• Further research into the role of angiogenesis in post-MI coronary anomaly formation is warranted.
• Clinicians should consider the possibility of new coronary anomalies in patients with a history of myocardial infarction.