Introduction
Tonsillectomy is one of the most common procedure in Otorhinolaryngology, and it is recommended when the following standard is met: more than seven episodes in the prior year, or more than five episodes annually in the past 2 years, or more than three episode in the past 3 years(1). Although tonsillectomy is considered a simple procedure, how to further improve its safety, efficiency, painlessness and operability is still a concern. The efficacy of different tonsillectomy techniques is controversial.
HS uses ultrasonic waves to vibrate the knife head, vaporize the fluid in the tissue, denature and coagulate the protein in the cell, and produce hemostatic effect while cutting the tissue(2). Coblation uses the formation of a plasma thin layer in a plasma radio frequency electric field. The charged particles in the plasma thin layer are accelerated to dissociate the molecular bonds in the tissue and form carbohydrates and oxides. Under relatively low temperature conditions (40℃-70℃) to achieve the purpose of ablation and coagulation(3).
The aim of this study is to comapre postoperative pain score and postoperative bleeding loss of HS, coblation and CD tonsillectomy to select the surgical technique with the least complications and to explore the best tonsillectomy technique in adult in terms of operative time, intraoperative bleeding loss, pseudomembrane growth and shedding time, and necrosis depth of specimen.