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The atrio-ventricular node artery in the human heart.
Angiology
|November 1, 1983
Summary
The atrioventricular node artery significantly supplies the heart's electrical pathway. Its detailed study in infant hearts reveals crucial insights into potential heart block causes and variations in arterial supply.
Area of Science:
- Cardiovascular Anatomy
- Cardiac Electrophysiology
Background:
- The atrioventricular node artery is vital for the atrioventricular conducting pathway's arterial supply.
- This vessel plays a key role in the development of heart block.
Purpose of the Study:
- To meticulously investigate the terminal ramifications of the atrioventricular node artery.
- To understand its contribution to the arterial supply of the atrioventricular conducting system in human infants.
Main Methods:
- Serial sectioning techniques were employed.
- The study analyzed 50 human infant hearts.
Main Results:
- The atrioventricular node artery supplied the posterior interventricular septum in 100% of cases.
- It supplied the atrioventricular node in 90% and the penetrating bundle in 64% of specimens.
- Branches to the interatrial septum were observed in 44% of hearts.
Conclusions:
- The arterial supply to the atrioventricular conducting pathway exhibits variability.
- Understanding these variations aids in predicting cardiac tissue involvement during myocardial infarction.