Cautery-assisted palatal stiffening operation for the treatment of obstructive sleep apnea syndrome

Cautery-assisted palatal stiffening operation (CAPSO) is a recently develop ed single office-based procedure performed with local anesthesia for the tr eatment of palatal snoring. A midline strip of soft palate mucosa is remove d, and the wound is allowed to heal by secondary intention, The flaccid pal ate is stiffened, and palatal snoring ceases. This prospective study evalua ted the ability of CAPSO to treat obstructive sleep apnea syndrome (OSAS). Twenty-five consecutive patients with OSAS underwent CAPSO. Responders were defined as patients who had a reduction in apnea-hypopnea index (AHI) of 5 0% or more and an AHI of 10 or less after surgery By these strict criteria, 40% of patients were considered to have responded to CAPSO. Mean AHI impro ved from 25.1 +/- 12.9 to 16.6 +/- 15.0 (P = 0.010). The Epworth Sleepiness Scale, a subjective measure of daytime sleepiness, improved from 12.7 +/- 5.6 to 8.8 +/- 4.6 (P < 0.001). These results indicate that CAPSO is as eff ective as other palatal surgeries in the management of OSAS.