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The diameters of common carotid artery and its branches in newborns

Umit S Sehirli1, A Yalin, C M Tulay

  • 1Department of Anatomy, Marmara University School of Medicine, 34668 Haydarpasa, Istanbul, Turkey. usehirli@marmara.edu.tr

Surgical and Radiologic Anatomy : SRA
|October 21, 2005
PubMed

Insights

This study measured common carotid artery (CCA) and its branches (ICA, ECA) in newborns. Results show ratios align with optimal values for preventing atherosclerosis, crucial for early cardiovascular health.

Area of Science:

  • Anatomy
  • Vascular Biology
  • Pediatric Medicine

Background:

  • The common carotid artery (CCA) bifurcation is clinically significant for interventions and atherosclerosis.
  • While adult carotid artery dimensions are studied, newborn data is scarce.
  • Atherosclerosis begins early, making neonatal anatomy crucial.

Purpose of the Study:

  • To determine the anatomical dimensions of the CCA and its branches (internal carotid artery - ICA, external carotid artery - ECA) in newborns.
  • To calculate key arterial ratios and compare them to optimal values for vascular health.
  • To identify potential sex or side-based differences in neonatal carotid artery anatomy.

Main Methods:

  • Dissection of 20 fixed newborn cadavers (11 male, 9 female).
  • Measurement of internal diameters of CCA, ICA, and ECA using light microscopy.
  • Calculation of ECA/CCA, ICA/CCA, ICA/ECA, and outflow to inflow area ratios.

Main Results:

  • The mean outflow to inflow area ratio was 1.14 ± 0.28, closely matching the optimal ratio of 1.15.
  • Calculated ratios were: ECA/CCA (0.78 ± 0.12), ICA/CCA (0.71 ± 0.13), and ICA/ECA (0.93 ± 0.16).
  • No statistically significant differences were found between sexes or sides.

Conclusions:

  • Neonatal carotid artery dimensions and ratios are consistent with optimal values for preventing early atherosclerotic changes.
  • These findings provide essential anatomical data for the newborn period, aiding in understanding early vascular development and disease.
  • The study highlights the importance of early anatomical knowledge for pediatric vascular health.

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