Improving surgical results in velopharyngeal surgery: our experience in the last decade.

Background And Purpose: The surgical techniques used to treat velopharyngeal collapse in obstructive sleep apnoea patients have evolved over recent years. Our aim was to determine whether these new techniques have better surgical results.

Materials And Methods: This is a retrospective study of moderate to severe obstructive sleep apnoea patients surgically treated from 2006 to 2018. Only adult patients with no compliance to positive airway pressure and without simultaneous multilevel surgery were included. During this period, 4 different techniques were performed: uvulopalatopharyngoplasty, lateral pharyngoplasty, expansion pharyngoplasty and barbed reposition pharyngoplasty. Success rates as defined by Sher, as well as postoperative AHI<10/h and mean relative AHI reduction (MRR) were compared.

Results: 82 patients were included. AHI was significantly reduced from 43.4±24/h to 15.6±18.6/h. No significant changes in body mass index were observed. Hypoxaemia time, oxygen desaturation index, and Epworth sleepiness scale values improved after surgery. The best success rates were obtained performing barbed reposition pharyngoplasty (78.26% measured by Sher's criteria, 65.22% by AHI<10/h criteria and 74.1% by the MRR). The differences observed were statistically significant.

Conclusions: Barbed reposition pharyngoplasty is a recently introduced technique that showed superiority over the other palatal surgery techniques in this cohort.