Comparison of posttonsillectomy pain using the ultrasonic scalpel, coblator, and electrocautery
Abstract
OBJECTIVE: To compare postoperative tonsillectomy pain between 3 commonly used surgical devices: the Harmonic Ultrasonic Scalpel (Ethicon Endo-Surgery, Cincinnati, OH), the Coblator (ArthroCare Corp, Sunnyvale, CA), and electrocautery.
STUDY DESIGN AND SETTING: A prospective, randomized trial. One hundred thirty-four patients were randomly assigned to receive a tonsillectomy with 1 of 3 surgical devices. All patients were asked to fill out a postoperative diary.
RESULTS: Statistically significant differences in pain scores were revealed between the Coblator and electrocautery (P = 0.02) and between the Coblator and the Ultrasonic Scalpel (P = 0.003), with the Coblator having lower pain scores. Electrocautery and the Ultrasonic Scalpel did not differ significantly from each other. The Coblation method showed a strong trend toward quicker return to normal diet.
CONCLUSION: Patients undergoing tonsillectomy with the Coblator device reported less pain over a 10-day period than patients undergoing tonsillectomy with electrocautery or the Ultrasonic Scalpel. Pain after tonsillectomy remains a major issue for our patients. The choice of surgical instrument appears to be one way to reduce this pain.
EBM RATING: A-1b.
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design.
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