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Myocardial bridges over coronary arteries in Cercopithecus
G Teofilovski1, B Filipovic, D Bogdanovic
1Institute of Anatomy, School of Medicine, University of Belgrade, Yugoslavia.
Summary
Myocardial bridges, segments of heart muscle covering coronary arteries, are common in monkey hearts, particularly over left coronary artery branches. This study highlights their prevalence and characteristics in Cercopithecus aethiops.
Area of Science:
- Cardiovascular Anatomy
- Primate Cardiac Morphology
Background:
- Myocardial bridges are congenital anomalies where a segment of cardiac muscle traverses the epicardial coronary artery.
- Understanding their prevalence and anatomical variations is crucial for comparative cardiovascular research.
Purpose of the Study:
- To investigate the incidence and distribution of myocardial bridges in the coronary arteries of Cercopithecus aethiops.
- To compare the coronary arterial anatomy of these monkeys to that of humans.
Main Methods:
- Macroscopic examination of 29 Cercopithecus aethiops (African green monkey) hearts.
- Detailed analysis of the subepicardial arterial network and identification of myocardial bridges.
Main Results:
- A high incidence of myocardial bridges (83%) was observed, predominantly over ventricular branches of coronary arteries.
- Myocardial bridges were most frequently found on the left coronary artery (90%), especially the left anterior interventricular branch (69%).
- Bridges were typically single, with lengths ranging from 0.5 mm to 31.6 mm; no significant sexual dimorphism was noted.
Conclusions:
- Cercopithecus aethiops exhibits a high prevalence of myocardial bridges, similar to human anatomy.
- The findings provide valuable insights into primate coronary artery variations and potential models for studying myocardial bridge-related pathologies.