1. Prosthetic mandibular advancement in the treatment of Obstructive Sleep Apnea Syndrome
- Author
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Hamdy Fouad Ali Marzouk and Ahmed Elasfour
- Subjects
medicine.medical_specialty ,Epiglottis ,Supine position ,business.industry ,medicine.medical_treatment ,Sleep apnea ,Apnea ,General Medicine ,medicine.disease ,Prosthesis ,respiratory tract diseases ,Surgery ,Obstructive sleep apnea ,medicine.anatomical_structure ,stomatognathic system ,Anesthesia ,medicine ,medicine.symptom ,Esophagus ,business ,Hypopnea - Abstract
Prosthetic mandibular advancement (PMA) prosthesis was based on the Esmarch maneuver, to advance the mandible and its attached muscles forwards about 5โ6 mm. It causes improvement of apnea/hypopnea index (AHI) and intraesophageal pressure ( P eso ) in patients with Obstructive Sleep Apnea Syndrome (OSAS). The effect of PMA on AHI, P eso , lowest oxygen saturation (SaO 2 %) and intensity of snoring sound was studied in 15 male patients proven to have OSAS. Their mean age was 56±13 years. Polysomnographic recording was done for 2 h in the afternoon whilst the patients slept in the supine position without PMA and 2 h with the patient wearing the prefabricated PMA prosthesis. Evaluation of the intraluminal negative pressure was done after the introduction of a soft silicone Gaeltec catheter® with four barosensors, adjusted at the epipharynx (S1), just below the uvula (S2), at the tip of the epiglottis (S3) and (S4) at the mid esophagus. Four patients (26.7%) showed a reduction in both AHI and P eso by more than 50% and six patients (40%) presented a reduction in AHI only by more than 50%, whereas five cases (33.3%) presented poor response. We concluded that PMA could be used conservatively alone or as an adjuvant to sleep apnea surgery in some cases according to their cephalometric measurements as well as their response on polysomnographic study.
- Published
- 2003
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