Abstract
The role of Drug-induced sleep endoscopy as a selection tool for surgical management of obstructive sleep apnoea syndrome. Source of data: Polysomnography proved OSA patients, who are planned for surgery in dept. of ENT AND HEAD& NECK, JSS Hospital, Mysore. Study design: A prospective clinical study. Method: 30 Polysomnography proved OSA patients, age between 20 and 60 years have been selected for Drug Induced Sleep Endoscopy (DISE) after taking informed consent for proposed surgery. Inj propofol infusion given throughout the DISE procedure and upper airway nasal endoscopy performed for assessment of site of collapse (Retropalatal, Retrolingual, Hypopharyngral), type of collapse (circumferential, lateral) and severity of obstruction, Lowest SpO2, apnoeic episodes and DISE findings were recorded. Out of these thirty patients 90% were male and 10% were female, observed that 66.7% of males and 40.7% of females belonged to 31–40 age group, and BMI of 63.3% of patient population were overweight, 20% were obese and 5% were normal. Mean fall in SpO2 was 90.20 ± 2.77 in normal subjects, 83.05 ± 5.14 in overweight subjects and 68.83 ± 9.11 in obese subjects. Normal subjects had 0.4 ± 0.9 apnoeic episodes, overweight subjects had 0.9 ± 1.6 episodes and obese subjects had 4.0 ± 2 apnoeic episodes. We observed that 40% had retropalatal airway collapse, 23.3% had airway obstruction at the base of the tongue, 20% had airway obstruction with floppy epiglottis, 12% multiple level collapse, 6.7% of patient population had grade 4 enlarged tonsils, 3.3% had lateral pharyngeal wall collapse, and 0% hypopharyngeal collapse. Out of 30, 29 Patients underwent surgery (Expansion sphincter pharyngo plasty—14, Hyoid advancement—4, Uuvulopalatoplasty—10, Epiglottic surgery—6, Zeta pharyngoplasty—2, midline glossectomy—3, Endoscopic septoplasty—5, Inferio turbinoplasty—2, LASSER Assisted lingual tonsillectomy—1), All these 29 patient were followed for 3 months, at the end of 3rd month again Each subject was evaluated with a baseline Epworth Sleepiness Scale and LEVEL-3 PSG, the results were impressive with statistically significant. DISE is a dynamic, safe, and easy-to-perform technique that visualizes, the anatomical sites of snoring or apneas for assessment site of collapse (Retropalatal, Retrolingual, Hypopharyngral), type of collapse (Circumferential, Lateral) and severity of obstruction and guides the design of a tailor-made treatment plan for a OSA SURGEON in individual cases, which will improves perioperative outcome.
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All procedures performed in this studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Bharathi, M.B., Rajendra Prasad, J. & Satish, K. Drug-Induced Sleep Endoscopy as a Selection Tool for Surgical Management of Obstructive Sleep Apnoea Syndrome: Our Personal Experience. Indian J Otolaryngol Head Neck Surg 69, 313–318 (2017). https://doi.org/10.1007/s12070-017-1113-6
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DOI: https://doi.org/10.1007/s12070-017-1113-6