Right coronary artery distribution of myocardial bridging: an unusual case presenting with ST-Elevation myocardial...

Area of Science:

• Cardiology
• Anatomical Pathology

Background:

• Myocardial bridging is a known congenital anomaly where a segment of the epicardial coronary artery runs intramyocardially.
• It is frequently associated with symptoms like angina, especially during physical exertion, and hypertrophic cardiomyopathy.
• Recent research suggests a link between myocardial bridging and coronary vasospasm.

Observation:

• Autopsy studies report higher prevalence of myocardial bridging compared to angiography.
• Both autopsy and angiography data predominantly show left coronary artery involvement, particularly for clinically significant cases.
• This report presents a rare instance of myocardial bridging localized to the right coronary artery distribution.

Findings:

• The case highlights an atypical anatomical presentation of myocardial bridging.
• Right coronary artery myocardial bridging can have significant clinical manifestations and diagnostic challenges.

Implications:

• This case underscores the importance of considering right coronary artery myocardial bridging in the differential diagnosis of cardiac symptoms.
• Physicians should be aware of this unusual distribution for accurate diagnosis and appropriate patient management.
• Further research into right-sided myocardial bridging may refine clinical guidelines.