- Design
- Retrospective single-centre case series
- Population
- 1,734 children having intracapsular tonsillotomy with adenoidectomy
- Primary outcome
- Operative time, post-operative bleeding and revision surgery
- Effect
- 22 vs 24 minutes; bleeding 1% vs 0.9% (OR 1.1, 95% CI 0.35 to 3.47)
A retrospective series from a large children's hospital (Otolaryngology–Head and Neck Surgery, 29 September) compared 1,734 intracapsular tonsillotomies with adenoidectomy performed between 2018 and 2024, 385 with coblation and 1,349 with the microdebrider. Mean age was about five years.
Median operating time was 22 minutes with coblation and 24 with the microdebrider. Post-tonsillectomy bleeding was about 1% with either (OR 1.1, 95% CI 0.35 to 3.47), and revision surgery 0.5% versus 1% (OR 0.85, 0.23 to 3.15). Younger age was associated with a higher chance of revision.
Both techniques gave low bleeding and revision rates, supporting intracapsular surgery generally. The choice between them can rest on surgeon familiarity and cost. Coblation was used by only two surgeons, so surgeon effects cannot be separated from technique.
- Choose between coblation and microdebrider for tonsillotomy based on familiarity and cost; outcomes were similar.
- Counsel parents of younger children that regrowth needing revision is more likely.
- Expect post-operative bleeding of about 1% after intracapsular tonsillotomy in children.
- Audit local bleeding and revision rates against these figures.
Why it matters
It reassures units adopting intracapsular surgery that the choice of instrument matters little for safety.
Don't overread it
With only two coblation surgeons and few events, the study cannot exclude modest differences between techniques.
The statistics, in plain English
With bleeding around 1%, the confidence intervals for both comparisons span from about a third to over three times the risk, so a real difference cannot be ruled out. The two-minute time saving is statistically significant but small.
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