The Indian Journal of Pediatrics

, Volume 68, Issue 3, pp 243–245 | Cite as

Measurement of laryngeal dimensions in neonates

  • C. Subrahmanyam
  • N. Panda
  • S. Srinivasan
  • S. B. S. Mann
Original Article


Intimate knowledge of laryngeal anatomy and various laryngeal dimensions is crucial for successful airway management. Selection of a proper endotracheal tube is also a critical factor. Subglottic dimension is the most important measurement of larynx because of it being the narrowest part of the infant larynx. Data about various infantile laryngeal dimensions in Indian population is sparse. In this article, we present various laryngeal dimensions using 30 infantile laryngeal autopsy specimens and review of literature.

Key words

Laryngeal anatomy Subglottic anatomy Pediatric airway Endotracheal intubation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Sellars I and Keen EN. Laryngeal growth in infancy.J Laryngol and Otol 1990; 104: 622–625.Google Scholar
  2. 2.
    Too Chung MA and Green JR. The rate of growth of the cricoid cartilage.J Laryngol and Otol 1974; 88: 65–70.CrossRefGoogle Scholar
  3. 3.
    Hollinger PH and Johnson KC. Factors responsible for Laryngeal obstruction in infants.JAMA 1950; 143: 14–19.Google Scholar
  4. 4.
    Hawkins DB. Hyaline membrane disease of the neonate prolonged intubation in management: Effects on the larynx.Laryngoscope 1978; 88 : 201–223.PubMedGoogle Scholar
  5. 5.
    Quinley RF. Gould SJ. Subglottic stenosis, a clinico pathological study.Clinical Otolaryngology 1985; 10: 315–327.CrossRefGoogle Scholar
  6. 6.
    Eckenhoff J. Some anatomic considerations of the infant larynx influencing Endotracheal Anaesthesia.Anaesthesiology 1951; 12: 401–410.CrossRefGoogle Scholar
  7. 7.
    Fiscmann RA and Pashley NRT. A study of the premature neonatal airway.Otolaryngol and Head and Neck Surgery 1981; 89: 604–607.Google Scholar
  8. 8.
    Gabriel Tucker. Infant larynx. Direct laryngoscopic observations.JAMA 1932; 99: 1899–1902.Google Scholar
  9. 9.
    Joyce A Schild. Relationship of laryngeal dimensions to body size and gestational age in premature neonates and small infants.Laryngoscope 1984; 94:1284–90.PubMedCrossRefGoogle Scholar

Copyright information

© Dr. K C Chaudhuri Foundation 2001

Authors and Affiliations

  • C. Subrahmanyam
    • 1
  • N. Panda
    • 1
  • S. Srinivasan
    • 1
  • S. B. S. Mann
    • 1
  1. 1.Department of ENTPostgraduate Institute of Medical Education and ResearchChandigarh

Personalised recommendations