Lateral pharyngoplasty: Lateral pharyngoplasty is designed to prevent lateral pharyngeal wall collapse in obstructive sleep apnea, and a primary component for patient selection is sagittal collapse during Mueller’s maneuver. The procedure has been found to improve snoring, sleepiness and apnea. Patients with markedly enlarged tonsils and positional sleep apnea do better with lateral pharyngoplasty, said Dr. Li.
In expansion sphincter pharyngoplasty, the lateral pharyngeal walls are stiffened to prevent their collapse, said Kenny Pang, MD, director and consultant at the Asia Sleep Centre in Singapore. In 2007, Dr. Pang published a randomized trial comparing the procedure with UPPP in patients with mild to moderate OSA who had undergone an examination suggesting palatal collapse without markedly enlarged tonsils (Otolaryngol Head Neck Surg. 2007;137:110-114). The success rate was 78 percent for expansion sphincter pharyngoplasty (ESP) and 46 percent for UPPP, and there was a greater improvement in the apnea-hypopnea index in the ESP group. | ← Previous | | | Next → | Single Page