- Design
- Retrospective comparative case series, single tertiary paediatric centre
- Population
- 5,576 tonsillotomies and 19,834 tonsillectomies in children, 2010-2025
- Primary outcome
- Later peritonsillar abscess
- Effect
- 0.16% after tonsillotomy vs 0.005% after tonsillectomy; mean 8.2 years later
A retrospective series from a tertiary paediatric hospital (Otolaryngology-Head and Neck Surgery, 17 October 2026) identified children who developed a peritonsillar abscess after tonsil surgery between 2010 and 2025. Among 5,576 intracapsular tonsillotomies and 19,834 tonsillectomies, nine abscesses followed tonsillotomy (0.16%) and one followed tonsillectomy (0.005%).
The abscesses appeared a mean of 8.2 years after surgery (range 1-12), at a mean age of about 14. Residual tonsil tissue was confirmed in seven of the ten children, and five had a revision tonsillectomy.
Tonsillotomy has clear short-term advantages - less pain and less post-operative bleeding - and this does not change that. But families should hear that the remaining tissue can cause trouble years later, and clinicians seeing a teenager with a severe sore throat should not assume a previous 'tonsillectomy' rules out a quinsy.
- Mention the small long-term risk of regrowth and abscess when consenting for tonsillotomy
- Record the technique - intracapsular or extracapsular - clearly in the operation note and discharge letter
- Consider peritonsillar abscess in a teenager with prior tonsillotomy and unilateral throat pain or trismus
- Consider revision tonsillectomy after an abscess in residual tissue
Why it matters
A 'previous tonsillectomy' in the notes may be a tonsillotomy, and that changes the differential years later.
Don't overread it
A case series with ten events - it does not outweigh tonsillotomy's short-term benefits.
The statistics, in plain English
0.16% is about 1 in 600 children after tonsillotomy. Only cases treated at the same hospital were counted, so the true rate may be higher if some went elsewhere. With ten cases in total, the comparison between techniques is imprecise.
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