Examination of Change in Sleep-disordered Breathing before and after Orthognatic Surgery-Part 1 Change of the Apnea Hypopnea Index-

Abstract

We investigated risk factors for obstructive sleep ap-nea hypopnea syndrome (OSAHS) induced by orthog-nathic surgery for the treatment of malocclusion, and analyzed preoperative and postoperative findings. In Part 1, we reported on the relationship between polysomno-graphic findings and direction of jaw movement before and after orthognathic surgery. In this study (Part 2), we investigated the relationship between the pharyngeal airway space on lateral cephalometric radiographs and polysomnographic findings in the cases studied in Part 1. •• OE¾ ‚í ‚ê ‚í ‚ê ‚Í ™ù • ‡ ‚Ì ‰ñ •oe ‚ð-Ú "I ‚AE ‚µ ‚½ Š{ ‹¸•‹¸•³ Žè •p ‚Ì •p 'O OEã ‚Å ‚Ì Še OEŸ •¸,•f •¸ •€-Ú ‚ð‰ð •Í ‚µ,Š{ ‹¸•‹¸•³ Žè •p ‚É ‚ae ‚é •Â •Ç OE^