Myocardial bridging of left circumflex coronary artery associated with acute myocardial infarction

Area of Science:

• Cardiology
• Cardiovascular Medicine
• Clinical Case Reports

Background:

• Myocardial bridging (MB) is a congenital anomaly where a segment of a coronary artery tunnels through the myocardium.
• MB has been linked to adverse cardiac events including myocardial infarction (MI), arrhythmias, and sudden cardiac death.
• While MB of the left anterior descending artery is frequently reported, involvement of other coronary arteries is less common.

Observation:

• This report details a rare case of acute myocardial infarction (MI).
• The patient presented with symptoms indicative of an acute coronary syndrome.
• Diagnostic imaging revealed myocardial bridging specifically affecting the left circumflex coronary artery.

Findings:

• The case demonstrates a direct association between myocardial bridging of the left circumflex coronary artery and acute myocardial infarction.
• This finding expands the understanding of coronary artery anomalies contributing to ischemic heart disease.
• The anatomical variation presented a unique clinical challenge.

Implications:

• This case underscores the importance of considering myocardial bridging of less commonly affected coronary arteries in the etiological workup of MI.
• It highlights the potential for left circumflex artery bridging to precipitate acute myocardial infarction.
• Further research into the clinical significance and management of non-LAD myocardial bridging is warranted.