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Aortic root morphometry revisited-Clinical implications for aortic valve interventions.

Damian Dudkiewicz1, Maciej Lis1, Artem Yakovliev2

  • 1HEART - Heart Embryology and Anatomy Research Team, Department of Anatomy, Jagiellonian University Medical College, Cracow, Poland.

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Summary

This study provides detailed morphometric data on the non-diseased aortic root, crucial for cardiac procedures. Findings reveal significant variations in aortic root dimensions and sinus sizes, with age and sex influencing these measurements.

Keywords:
aortaaortic anulusaortic cuspaortic diseaseaortic rootaortic sinusaortic valveaortic valve stenosisbasal ringcoaptation centersinotubular junctionsinus of Valsalva

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Area of Science:

  • Cardiovascular Anatomy
  • Cardiac Morphology
  • Surgical Anatomy

Background:

  • The aortic root's complex anatomy is critical for cardiac surgical and transcatheter interventions.
  • Accurate morphological data of the non-diseased aortic root is essential for procedural planning and device development.

Purpose of the Study:

  • To comprehensively describe the morphometry of the non-diseased human aortic root.
  • To establish baseline anatomical data for the aortic root, including dimensions and spatial relationships of its components.

Main Methods:

  • Morphometric analysis of 200 autopsied adult human hearts.
  • Meticulous macroscopic examination of aortic root anatomy, including cross-sectional areas and depths of sinuses.
  • Statistical analysis, including regression modeling, to identify predictors of aortic root dimensions.

Main Results:

  • The coaptation center plane exhibited the largest cross-sectional area (653.9 mm²), followed by the tubular plane (427.7 mm²) and basal ring (362.7 mm²).
  • The right coronary sinus was largest in area, while the noncoronary sinus was deepest.
  • Age and sex were significant predictors for the dimensions of the coaptation center plane, tubular plane, and basal ring.

Conclusions:

  • This study offers a detailed morphometric characterization of the non-diseased aortic root.
  • The findings provide a foundational dataset for understanding aortic root structure-function relationships and improving cardiac interventions.