A comparison of the outcomes of tonsillectomy and expansion sphincter pharyngoplasty operations in patients with obstructive sleep apnea.

Objective: To compare the efficacy of tonsillectomy and expansion sphincter pharyngoplasty (ESP) in the surgical treatment of obstructive sleep apnea (OSA).

Methods: OSA patients with Friedman grade III-IV tonsil hypertrophy diagnosed with polysomnography were separated into two groups according to the surgery performed, as the classic tonsillectomy group (Group 1) and the ESP group (Group 2). The primary endpoint of the study was to determine the Apnea-Hypopnea Index (AHI) value.