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Updated: Feb 18, 2026

CO2-Lasertonsillotomy Under Local Anesthesia in Adults
Published on: November 6, 2019
The debate continues: a prospective, randomised, single-blind study comparing Coblation and bipolar tonsillectomy
D Wiltshire1, M Cronin1, N Lintern2
1Department of Otolaryngology, Head and Neck Surgery,Ipswich Hospital,Australia.
Objectives:
Tonsillectomy is a common procedure with significant post-operative pain. This study was designed to compare post-operative pain, returns to a normal diet and normal activity, and duration of regular analgesic use in Coblation and bipolar tonsillectomy patients.
Methods:
A total of 137 patients, aged 2-50 years, presenting to a single institution for tonsillectomy or adenotonsillectomy were recruited. Pain level, diet, analgesic use, return to normal activity and haemorrhage data were collected.
Results:
Coblation tonsillectomy was associated with significantly less pain than bipolar tonsillectomy on post-operative days 1 (p = 0.005), 2 (p = 0.006) and 3 (p = 0.010). Mean pain scores were also significantly lower in the Coblation group (p = 0.039). Coblation patients had a significantly faster return to normal activity than bipolar tonsillectomy patients (p < 0.001).
Conclusion:
Coblation tonsillectomy is a less painful technique compared to bipolar tonsillectomy in the immediate post-operative period and in the overall post-operative period. This allows a faster return to normal activity and decreased analgesic requirements.

