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Related Experiment Videos

Cervical posture and nasal breathing in infancy

A Shatz1, B Arensburg, J Hiss

  • 1Shaare Zedek Medical Centre, Zamenhof Central Multispecialty Clinic, Tel Aviv, Israel.

Acta Anatomica
|January 1, 1994
PubMed
Summary
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Neonatal obligatory nose breathing is challenged by infants surviving airway obstruction. Cervical extension facilitates oral breathing by opening key sphincters, potentially linking infant sleep posture to sudden infant death syndrome.

Area of Science:

  • Neonatal physiology
  • Pediatric airway anatomy
  • Respiratory regulation

Background:

  • The prevailing theory posits that neonates are 'obligatory' nose breathers.
  • Infant survival with conditions like choanal atresia or pyriform aperture stenosis challenges this notion.
  • Understanding neonatal airway dynamics is crucial for infant health and safety.

Purpose of the Study:

  • To investigate anatomical parameters influencing neonatal airway patency and obstruction.
  • To challenge the theory of obligatory nasal breathing in neonates.
  • To explore the mechanism facilitating the switch between nasal and oral breathing in infants.

Main Methods:

  • Analysis of midsagittal anatomical sections of fetal and adult necks.
  • Examination of head and neck radiographs from infants.

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  • Correlation of anatomical findings with infant breathing patterns.

    • Main Results:

    • Infants can successfully breathe orally despite nasal obstruction.
    • A key anatomical factor enabling oral breathing is cervical extension, creating neck lordosis.
    • This cervical extension opens the veloglossal and veloepiglottic sphincters, facilitating oral airflow.

    Conclusions:

    • The theory of 'obligatory' nose breathing in neonates requires re-evaluation.
    • Cervical extension is a critical anatomical mechanism for enabling oral breathing in infants.
    • This physiological mechanism may offer insights into the relationship between infant sleep posture and sudden infant death syndrome (SIDS).