Assessing the Relationship Between Infection Frequency and Risk of Post-Tonsillectomy Hemorrhage

Area of Science:

• Otolaryngology
• Pediatric Surgery

Background:

• Recurrent tonsillitis is a common condition in children, often treated with tonsillectomy.
• Post-tonsillectomy hemorrhage (PTH) is a known complication, and factors influencing its risk are crucial for patient management.

Purpose of the Study:

• To investigate the association between the frequency of tonsillitis episodes and the risk of post-tonsillectomy hemorrhage (PTH) in pediatric patients.
• To identify risk factors for PTH in children undergoing tonsillectomy for recurrent tonsillitis.

Main Methods:

• Retrospective chart review of 424 pediatric patients who underwent tonsillectomy in 2017.
• Patients were stratified into two cohorts based on tonsillitis frequency (≥7 infections/year vs. <7 infections/year).
• Bivariate analyses, Kaplan-Meier curves, and regression models were used to assess PTH risk and timing.

Main Results:

• Overall PTH incidence was 8.73%. Patients meeting the 7+ infections/year criteria showed a non-significant trend towards higher PTH odds (OR: 1.42).
• Secondary hemorrhage was more common (94.59% of PTH cases), with a median onset of 6 days post-surgery.
• Pediatric patients with neuromuscular conditions exhibited significantly higher odds of PTH (OR: 4.75, P=.0276).

Conclusions:

• The frequency of tonsillitis, defined by the 1-year criteria, was not a significant predictor of post-tonsillectomy hemorrhage in this cohort.
• Neuromuscular conditions represent a significant risk factor for PTH in pediatric tonsillectomy patients.
• Further research is warranted to elucidate the relationship between infection frequency and PTH risk.