Morphometry of adult cricoid cartilage in Nepalese cadavers: a cross-sectional observational study

Authors

  • Dristi Shrestha People's Dental College and Hospital Pvt. Ltd.
  • Bidur Adhikari Lecturer, Department of Anatomy, Maharajgunj Medical Campus https://orcid.org/0000-0003-3304-6657
  • Manoranjan Dwa Nepal Armed Police Force Hospital, Kathmandu, Nepal
  • Nirju Ranjit Maharajgunj Medical Campus

DOI:

https://doi.org/10.61814/jkahs.v7i2.926

Keywords:

Cricoid cartilage, Nepalese population, endotracheal tube sizing, airway management, anatomical variations

Abstract

Background: Cricoid cartilage is crucial during endotracheal intubation, yet its dimensions in the Nepali population remain uncharacterized. This study aimed to measure cricoid cartilage dimensions in adult Nepalese.

Methods: A total of 105 cadavers (75 males, 30 females) were dissected at *** Medical Campus, Nepal. Measurements of outer and inner transverse and anteroposterior diameters, as well as heights of the cricoid arch and lamina, were taken using digital vernier calipers. Statistical analyses included gender comparisons and correlations with age.

Results: The mean age of the 105 cadavers studied was 34.11 years (SD = 12.08). The measurements of outer anteroposterior diameter, outer transverse diameter, inner anteroposterior diameter, inner transverse diameter, arch height and lamina height were respectively 22mm (SD=4), 21mm (SD=4), 18mm (SD=3), 17mm (SD=3), 9mm (SD=3) and 24mm (SD=4). Inner AP (p = 0.009) and inner TR (p = 0.021) measurements correlated significantly with age. Males had significantly larger cricoid cartilage dimensions than females (p < 0.001).

Conclusions: This study provided essential data for selecting appropriately sized endotracheal tubes in Nepalese patients, reducing airway complications. It underscored the need to tailor medical devices to local anatomical variations, supporting advancements in biomechanical modeling and medical research.

Author Biographies

Dristi Shrestha, People's Dental College and Hospital Pvt. Ltd.

Department of Anatomy

Manoranjan Dwa, Nepal Armed Police Force Hospital, Kathmandu, Nepal

Department of General Surgery

Nirju Ranjit, Maharajgunj Medical Campus

Department of Anatomy

Published

2024-08-31

How to Cite

1.
Shrestha D, Adhikari B, Dwa M, Ranjit N. Morphometry of adult cricoid cartilage in Nepalese cadavers: a cross-sectional observational study. Journal of Karnali Academy of Health Sciences [Internet]. 2024Aug.31 [cited 2024Oct.16];7(2). Available from: http://jkahs.org.np/jkahs/index.php/jkahs/article/view/926