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  • Title: Emergence of Central Sleep Apnea Events After Maxillomandibular Advancement Surgery for Obstructive Sleep Apnea.
    Author: Goodday RH, Fay MB.
    Journal: J Oral Maxillofac Surg; 2019 Nov; 77(11):2303-2307. PubMed ID: 31302064.
    Abstract:
    PURPOSE: Central sleep apnea (CSA) can develop after the treatment of obstructive sleep apnea (OSA) with continuous positive airway pressure (CPAP). No studies have identified whether treatment of OSA with maxillomandibular advancement surgery (MMA) can result in CSA. The purpose of our study was to determine the incidence and clinical significance of CSA emerging after MMA surgery to treat OSA. PATIENTS AND METHODS: A retrospective review was conducted of all patients who had undergone MMA surgery for OSA at the Department of Oral and Maxillofacial Surgery at the QEII Health Sciences Centre (Halifax, NS, Canada) from 1996 through 2016. All patients with preoperative level 1 polysomnography and follow-up level 1 study results available at least 6 months postoperatively were included the present study. The pre- and postoperative central apnea index (CAI) results were compared. RESULTS: A total of 113 patients (84 men and 29 women) with an average age of 44.0 years were included in the present study. In 35 patients (31.0%), the emergence of CSA events were recorded on postoperative polysomnograms. Only 2 of the 113 patients experienced the emergence of clinically significant postoperative CSA (CAI >5). In our patient cohort, gender (P = .085), patient age (P = .238), and preoperative (P = .716) and postoperative (P = .209) Apnea-Hypopnea Index (AHI) results correlated with the postoperative development of CSA events after MMA surgery. The mean AHI values had decreased from 41.4 to 8.7 in all patients treated with MMA in our study. CONCLUSIONS: The emergence of CSA events occurred in 31% of patients after OSA treatment with MMA surgery. The rate of clinically significant CSA events emerging after MMA surgery in our study was 1.8%. These findings help to support the use of MMA surgery for OSA as a reasonable treatment alternative for patients unable to tolerate CPAP.
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