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Factors Influencing Post-Operative Oral Intake Following Tonsillectomy in Children with OSA

Michael Nicolette1, Yekaterina Shapiro2, Kathy Zhang2

  • 1Cooper Medical School of Rowan University, Camden, NJ, USA.

The Annals of Otology, Rhinology, and Laryngology
|April 9, 2026
PubMed

Insights

Factors like older age, higher BMI, and longer operative times correlate with reduced oral intake after pediatric tonsillectomy for obstructive sleep apnea (OSA). However, post-operative oral intake did not significantly impact dehydration risk within 30 days.

Area of Science:

  • Otolaryngology
  • Pediatric Surgery
  • Sleep Medicine

Background:

  • Tonsillectomy is a common procedure for pediatric Obstructive Sleep Apnea (OSA).
  • Adequate oral intake post-tonsillectomy is crucial for recovery and preventing complications.
  • Dehydration is a potential risk following tonsillectomy, particularly in children.

Purpose of the Study:

  • To identify factors influencing oral intake in the first 24 hours after pediatric tonsillectomy for OSA.
  • To assess the impact of early post-operative oral intake on dehydration within 30 days.

Main Methods:

  • Retrospective cohort study of 357 pediatric patients undergoing tonsillectomy for OSA.
  • Analysis of patient records to identify factors associated with 24-hour post-operative oral intake (controlled for body weight).
  • Primary outcomes included 24-hour oral intake and 30-day post-operative dehydration events (ED visits/phone calls).

Main Results:

  • Higher BMI, older age, longer operative time, longer anesthesia duration, higher apnea-hypopnea index (AHI), increased pain scores, and the presence of a resident were associated with lower oral intake.
  • Post-operative oral intake did not significantly affect the incidence of dehydration events within 30 days.

Conclusions:

  • Several patient and surgical factors significantly influence immediate post-tonsillectomy oral intake in children with OSA.
  • Early post-operative oral intake volume was not found to be a significant predictor of 30-day dehydration risk.
Abstract

Keywords:
adenoidectomydehydrationobstructiveoral intakesleep apneatonsillectomy

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