[Anatomic study of the aortic ring position in relation to the mitral ring]

Area of Science:

• Cardiovascular Anatomy
• Cardiac Morphology

Background:

• Understanding the spatial relationship between the aortic and mitral rings is crucial for cardiac anatomy.
• Previous studies have not extensively detailed the variations in these relationships within normal hearts.

Purpose of the Study:

• To evaluate the anatomical relations between the aortic and mitral rings in a cohort of human hearts.
• To identify potential variations in the positioning of these cardiac structures.

Main Methods:

• One hundred adult human hearts were analyzed.
• Reference points on the aortic ring (commissure between non-coronary/left coronary sinus) and mitral ring (midpoint between anterior and posterior trigones) were used.
• Aortic ring position relative to mitral ring reference points was categorized as middle, anterior, or posterior.

Main Results:

• A middle position was observed in 47% of hearts, while anterior and much anterior positions accounted for 22% and 27%, respectively.
• Only 4% of hearts exhibited a posterior position.
• No significant correlations were found between the position of the rings and participant sex or age.
• A trend towards a more posterior position was noted in hearts from Black individuals compared to other groups.

Conclusions:

• The study demonstrates that variations in the relative positions of the aortic and mitral rings are common in normal adult hearts.
• These anatomical variations do not appear to be influenced by sex or age in the studied population.
• Further research may be warranted to explore ethnic differences in aortic-mitral ring relationships.