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* From the Departments of Respiratory Medicine (Drs. B. Fleury, Rakotonanahary, and Lebeau) and Otolaryngology (Drs. Petelle, Vincent, and Meyer), Hôpital Saint Antoine (Assistance Publique Hôpitaux de Paris-Université Paris VI), Paris, France; and Institut National de la Santé et de la Recherche Médicale unit 537 (Dr. N.P. Fleury), Le Kremlin Bicêtre, France.
Correspondence to: Bernard Fleury, MD, Service de Pneumologie, 184, Rue du Faubourg Saint Antoine, 75012, Paris, France; e-mail: bernard.fleury{at}sat.ap-hop-paris.fr
Background: Oral appliances (OAs) have been used for the treatment of obstructive sleep apnea syndrome (OSAS), with different degrees of effectiveness having been shown in previous studies. But, in the absence of a consensual recommendation, the method of the determination of effective mandibular advancement varies from one study to another.
Study objective: We prospectively evaluated an OA titration protocol based on a combined analysis of symptomatic benefit and oximetric recording to guide the progressive mandibular advancement.
Setting: University hospital sleep disorders center.
Patients: Forty patients with OSAS (mean [±SD] apnea-hypopnea index [AHI], 46 ± 21 events per hour) found on baseline polysomnography, who were intolerant of nasal continuous positive airway pressure, completed all aspects of the study.
Methods: Two acrylic appliances connected by Herbst attachments were constructed. The mandible was advanced 1 mm every week until there was a resolution of the symptoms and a reduction in the oxygen desaturation index (ie, the number of desaturations yielding a > 3% fall in pulse oximetric saturation per hour of recording) [ODI] of <10 events per hour of recording or a maximum comfortable limit of advancement was obtained. The final response to OA was evaluated by full polysomnography recording.
Results: A complete response (ie, mean AHI, 5 ± 3 events per hour; mean snoring reduction [SR], 91 ± 13%; mean Epworth sleepiness scale [ESS] score, 5 ± 3) was obtained in 63.6% of patients, and a limited response (ie, mean AHI, 21 ± 11 events per hour; mean SR, 88 ± 15%; mean ESS, 6 ± 3) was obtained in 18.2% of patients. Twenty-five percent of mandibular advancements were motivated by an abnormal ODI (ie, 21 ± 10 events per hour) despite resolution of the symptoms, while 20% were motivated by persistent symptoms with a normal ODI (ie, 6 ± 2 events per hour). After a mean duration of 17 ± 4 months, 34 patients declared that they had used the OA 5 ± 2 days a week for 89 ± 19% of their sleep time.
Conclusions: A combination of the patient’s subjective evaluation and oximetric score improves the effectiveness of the OA titration procedure.
Key Words: obstructive sleep apnea • oral appliance • treatment
This article has been cited by other articles:
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  V. Krishnan, N. A. Collop, and S. C. Scherr An Evaluation of a Titration Strategy for Prescription of Oral Appliances for Obstructive Sleep Apnea Chest, May 1, 2008; 133(5): 1135 - 1141. [Abstract] [Full Text] [PDF]
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 P. A. Cistulli and H. Gotsopoulos Single-Night Titration of Oral Appliance Therapy for Obstructive Sleep Apnea: A Step Forward? Am. J. Respir. Crit. Care Med., August 15, 2004; 170(4): 353 - 354. [Full Text] [PDF]
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