Publications by authors named "Yuuya Kohzuka"

Patients with Down syndrome (DS) have a high incidence of obstructive sleep apnea (OSA) due to hypotonia, weight, underdeveloped midface, and relative macroglossia. This article presents three cases of young adults with DS, who were diagnosed with mild to severe OSA and unable to tolerate positive airway pressure therapy. These patients have been successfully treated with a custom-made mandibular advancement device (MAD) or dual treatment with MAD and bi-level positive airway pressure (PAP) therapy.

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We hypothesize that the control of tongue position using a newly developed tongue position retainer, where the tongue is held in a protruded position (i.e., intervention A) or in its resting position (i.

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Objective: To evaluate the long-term effectiveness, compliance, and side effects of tongue stabilizing devices (TSDs).

Methods: Thirty-nine patients were followed up after 12 and 30 months. The subjective effectiveness was assessed using the Epworth Sleepiness Scale (ESS), the Functional Outcomes Sleep Questionnaire (FOSQ-10), the Chalder Fatigue Scale (CFQ), and a sleep-related quality of life questionnaire (QoL).

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Study Objectives: To evaluate the short-term efficacy and self-reported outcomes of tongue-stabilizing device (TSD) therapy as compared to those of mandibular advancement device (MAD) therapy in an adult population diagnosed with obstructive sleep apnea.

Methods: This study is a parallel, nonrandomized clinical trial of the TSD and MAD therapies. The efficacy of both interventions was evaluated objectively by level 3 home sleep apnea testing and by self-report using the Epworth Sleepiness Scale, the Functional Outcomes of Sleep Questionnaire, the Chalder Fatigue Scale, and the 36-Item Short-Form Health Survey.

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Treatment-emergent central sleep apnea is a phenomenon that has been reported after many obstructive sleep apnea treatment modalities. We present a case of demonstrating treatment-emergent central sleep apnea while using the tongue stabilizing device therapy. This case adds to the evidence that showed the effect of the supine position on the severity of central sleep apnea and shows the advantage of polysomnography follow-up after oral appliance therapy for central apnea assessment.

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What We Already Know About This Topic: Dental procedures under sedation can cause hypoxic events and even death. However, the mechanism of such hypoxic events is not well understood.

What This Article Tells Us That Is New: Apnea and hypopnea occur frequently during dental procedures under sedation.

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Oral appliances (OAs) are becoming increasingly recognized not only as an alternative to but also possibly as an adjunct treatment modality for OSA. Compared with CPAP, the gold standard therapy, OAs are less efficacious but are more accepted and tolerated by patients, which, in turn, may lead to a comparable level of therapeutic effectiveness. Different OA designs currently exist, and more are constantly emerging.

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