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[Anatomic study of the aortic ring position in relation to the mitral ring]
F B Jatene1, M Z Ibarra, R Monteiro
1Instituto do Coração do Hospital das Clínicas, FMUSP.
Insights
The relationship between aortic and mitral rings varies in normal hearts, with most showing a middle or anterior position. These variations are not linked to age or sex but may differ in Black individuals.
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.
Purpose:
Evaluate the relations between aortic and mitral rings.
Methods:
One hundred hearts were studied, in 84% men, 61% white and 85% were between 11 and 40 years old. The commissure between non coronary/left coronary sinus in the aortic ring and the middle point between anterior (AT) and posterior trigone (PT) in the mitral ring were used as references. When these points were coincident the position was middle; when the aortic point (AP) was closer the PT the position was posterior and when the AP was closer the AT the position was anterior or much anterior.
Results:
Forty seven (47%) showed middle position, twenty seven (27%) much anterior, twenty two (22%) anterior and only four (4%) posterior. These aren't related to sex and age. The hearts of black people showed more posterior position than the others.
Conclusion:
Variations in aortic/mitral rings relations may be observed in normal hearts.