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Musleh A, Abd El Maksoud WM, Dalboh A, Abbas KS, Alshehri S, Bawahab MA, Alqahtani AJ, Al-Malki AQ. Impact of Laparoscopic Sleeve Gastrectomy on Obstructive Sleep Apnea Symptoms Based on the STOP-BANG Questionnaire: A Prospective Study. Bariatr Surg Pract Patient Care 2023; 18:115-120. [DOI: 10.1089/bari.2022.0023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Affiliation(s)
- Abdullah Musleh
- Otorhinolaryngology Division, Surgery Department, King Khalid University College of Medicine, Abha, Saudi Arabia
| | | | - Abdullah Dalboh
- Surgery Department, King Khalid University College of Medicine, Abha, Saudi Arabia
| | - Khaled S. Abbas
- Surgery Department, King Khalid University College of Medicine, Abha, Saudi Arabia
| | - Sarah Alshehri
- Otorhinolaryngology Division, Surgery Department, King Khalid University College of Medicine, Abha, Saudi Arabia
| | - Mohammed A. Bawahab
- Surgery Department, King Khalid University College of Medicine, Abha, Saudi Arabia
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Tsai CY, Huang HT, Cheng HC, Wang J, Duh PJ, Hsu WH, Stettler M, Kuan YC, Lin YT, Hsu CR, Lee KY, Kang JH, Wu D, Lee HC, Wu CJ, Majumdar A, Liu WT. Screening for Obstructive Sleep Apnea Risk by Using Machine Learning Approaches and Anthropometric Features. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22228630. [PMID: 36433227 PMCID: PMC9694257 DOI: 10.3390/s22228630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/26/2022] [Accepted: 11/05/2022] [Indexed: 05/14/2023]
Abstract
Obstructive sleep apnea (OSA) is a global health concern and is typically diagnosed using in-laboratory polysomnography (PSG). However, PSG is highly time-consuming and labor-intensive. We, therefore, developed machine learning models based on easily accessed anthropometric features to screen for the risk of moderate to severe and severe OSA. We enrolled 3503 patients from Taiwan and determined their PSG parameters and anthropometric features. Subsequently, we compared the mean values among patients with different OSA severity and considered correlations among all participants. We developed models based on the following machine learning approaches: logistic regression, k-nearest neighbors, naïve Bayes, random forest (RF), support vector machine, and XGBoost. Collected data were first independently split into two data sets (training and validation: 80%; testing: 20%). Thereafter, we adopted the model with the highest accuracy in the training and validation stage to predict the testing set. We explored the importance of each feature in the OSA risk screening by calculating the Shapley values of each input variable. The RF model achieved the highest accuracy for moderate to severe (84.74%) and severe (72.61%) OSA. The level of visceral fat was found to be a predominant feature in the risk screening models of OSA with the aforementioned levels of severity. Our machine learning models can be employed to screen for OSA risk in the populations in Taiwan and in those with similar craniofacial structures.
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Affiliation(s)
- Cheng-Yu Tsai
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Huei-Tyng Huang
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, UK
| | - Hsueh-Chien Cheng
- Parasites and Microbes Programme, Wellcome Sanger Institute, Hinxton CB10 1RQ, UK
| | - Jieni Wang
- Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, UK
| | - Ping-Jung Duh
- Cognitive Neuroscience, Division of Psychology and Language Science, University College London, London WC1H 0AP, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
| | - Marc Stettler
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
| | - Yi-Chun Kuan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Yin-Tzu Lin
- Department of Medical Imaging and Intervention, Chang Gung Memorial Hospital at Linkou, Taoyuan 33305, Taiwan
| | - Chia-Rung Hsu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Kang-Yun Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Jiunn-Horng Kang
- Department of Physical Medicine and Rehabilitation, Taipei Medical University Hospital, Taipei 110301, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 110301, Taiwan
| | - Dean Wu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei 110301, Taiwan
- Dementia Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, Taipei Medical University Hospital, Taipei 110301, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
| | - Arnab Majumdar
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, UK
- Correspondence: (A.M.); (W.-T.L.)
| | - Wen-Te Liu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235041, Taiwan
- Research Center of Artificial Intelligence in Medicine, Taipei Medical University, Taipei 110301, Taiwan
- Correspondence: (A.M.); (W.-T.L.)
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Tsai CY, Liu WT, Lin YT, Lin SY, Houghton R, Hsu WH, Wu D, Lee HC, Wu CJ, Li LYJ, Hsu SM, Lo CC, Lo K, Chen YR, Lin FC, Majumdar A. Machine learning approaches for screening the risk of obstructive sleep apnea in the Taiwan population based on body profile. Inform Health Soc Care 2021; 47:373-388. [PMID: 34886766 DOI: 10.1080/17538157.2021.2007930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
(a) Objective: Obstructive sleep apnea syndrome (OSAS) is typically diagnosed through polysomnography (PSG). However, PSG incurs high medical costs. This study developed new models for screening the risk of moderate-to-severe OSAS (apnea-hypopnea index, AHI ≥15) and severe OSAS (AHI ≥30) in various age groups and sexes by using anthropometric features in the Taiwan population.(b) Participants: Data were derived from 10,391 northern Taiwan patients who underwent PSG.(c) Methods: Patients' characteristics - namely age, sex, body mass index (BMI), neck circumference, and waist circumference - was obtained. To develop an age- and sex-independent model, various approaches - namely logistic regression, k-nearest neighbor, naive Bayes, random forest (RF), and support vector machine - were trained for four groups based on sex and age (men or women; aged <50 or ≥50 years). Dataset was separated independently (training:70%; validation: 10%; testing: 20%) and Cross-validated grid search was applied for model optimization. Models demonstrating the highest overall accuracy in validation outcomes for the four groups were used to predict the testing dataset.(d) Results: The RF models showed the highest overall accuracy. BMI was the most influential parameter in both types of OSAS severity screening models.(e) Conclusion: The established models can be applied to screen OSAS risk in the Taiwan population and those with similar craniofacial features.
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Affiliation(s)
- Cheng-Yu Tsai
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Te Liu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan
| | - Yin-Tzu Lin
- Department of General Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Shang-Yang Lin
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Robert Houghton
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
| | - Wen-Hua Hsu
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Dean Wu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Dizziness and Balance Disorder Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Hsin-Chien Lee
- Department of Psychiatry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry and Psychiatric Research Center, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Psychiatry, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Cheng-Jung Wu
- Department of Otolaryngology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Biomedical Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan
| | - Lok Yee Joyce Li
- Department of Medicine, Shin Kong Wu-Ho-Su Memorial Hospital, Taipei, Taiwan
| | - Shin-Mei Hsu
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Chen-Chen Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Kang Lo
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - You-Rong Chen
- Sleep Center, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Feng-Ching Lin
- Division of Integrated Diagnostic and Therapeutics, National Taiwan University Hospital, Taipei, Taiwan.,Department of Nursing, Cardinal Tien Junior College of Healthcare and Management, Taipei, Taiwan
| | - Arnab Majumdar
- Centre for Transport Studies, Department of Civil and Environmental Engineering, Imperial College London, London, UK
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Espiritu J, Ordaz E, Dettenmeier P. Evaluation of a Desensitization Program for Continuous Positive Airway Pressure–Intolerant Patients. J Nurse Pract 2020. [DOI: 10.1016/j.nurpra.2020.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Vallejo-Balen A, Zabala-Parra SI, Amado S. Tratamiento quirúrgico por otorrinolaringología en el síndrome de apnea-hipopnea obstructiva del sueño (SAHOS). REVISTA DE LA FACULTAD DE MEDICINA 2017. [DOI: 10.15446/revfacmed.v65n1sup.59667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
El síndrome de apnea-hipopnea obstructiva del sueño (SAHOS) se caracteriza por la obstrucción parcial o el colapso total de la vía aérea superior, de manera intermitente y repetitiva, por lo que, en un principio, se vio el manejo quirúrgico como una alternativa curativa para esta patología. Sin embargo, en la actualidad se reconoce que la cirugía, aun sin lograr tasas de efectividad muy altas de manera consistente, sí mejora la tolerancia y adaptación a la terapia de presión positiva, la cual sigue siendo la primera línea de manejo.Así, el primer paso antes de pensar en cualquier procedimiento quirúrgico es un adecuado diagnóstico topográfico, de modo que siempre se debe realizar una nasofibrolaringoscopia para identificar el o los sitios de obstrucción. Además, se sabe que el 75% de los pacientes presentan obstrucciones en múltiples niveles y que, cuando el abordaje se hace multinivel, se logra corregir el SAHOS hasta en un 95%. Entre los procedimientos vigentes se encuentran cirugías de nariz, paladar blando, amígdalas, base de lengua, estimulación del nervio hipogloso y procedimientos del esqueleto facial, así como procedimientos coadyuvantes, entre los que están radiofrecuencia e implantes de paladar.
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Torres HM, Valladares-Neto J, Torres ÉM, Freitas RZ, Silva MAG. Effect of Genioplasty on the Pharyngeal Airway Space Following Maxillomandibular Advancement Surgery. J Oral Maxillofac Surg 2017; 75:189.e1-189.e12. [DOI: 10.1016/j.joms.2016.09.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 08/22/2016] [Accepted: 09/04/2016] [Indexed: 11/17/2022]
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Loke W, Girvan T, Ingmundson P, Verrett R, Schoolfield J, Mealey BL. Investigating the association between obstructive sleep apnea and periodontitis. J Periodontol 2014; 86:232-43. [PMID: 25299385 DOI: 10.1902/jop.2014.140229] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a sleep disorder characterized by disruptions of normal sleep architecture. Chronic periodontitis is a chronic disease of the periodontium that elicits a general inflammatory response to local dental plaque. It has been suggested that periodontal disease may increase in severity with increasingly severe OSA because both disease entities share common inflammatory pathways, acting synergistically to alter the host response. The aim of this study is to analyze the association between severity of OSA and the prevalence/severity of periodontitis. METHODS One hundred patients from a large veterans administration sleep study center (n = 26 normal, n = 21 mild, n = 19 moderate, n = 34 severe) diagnosed with an overnight polysomnogram underwent a comprehensive periodontal examination. Periodontal parameters measured included the following: 1) mean periodontal probing depth (PD); 2) clinical attachment level (CAL); 3) gingival recession; and 4) percentage of sites with bleeding on probing, plaque, PD ≥5 mm, and CAL ≥3 mm. RESULTS Seventy-three percent of the sampled population had moderate/severe periodontal disease. χ(2) analyses revealed no significant differences in the prevalence of periodontal disease between the apnea-hypopnea index (AHI) groups, with a negligible Spearman correlation coefficient of 0.246 between AHI severity and periodontal disease severity categories. Analysis of covariance indicated a significant association between AHI severity categories and percentage of sites with plaque, after adjusting for age. Multivariable logistic regression analysis predicting moderate/severe periodontitis with AHI score, age, and smoking status indicated a significant association with age (P = 0.028) but no significant association with the other two predictors. CONCLUSION OSA was not significantly associated with the prevalence of moderate/severe periodontitis and the periodontal parameters examined, except percentage plaque.
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Affiliation(s)
- Weiqiang Loke
- Department of Periodontics, University of Texas Health Science Center at San Antonio Dental School, San Antonio, TX
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Feres MC, Cintra FD, Rizzi CF, Mello-Fujita L, Lino de Souza AA, Tufik S, Poyares D. Evaluation and validation of a method for determining platelet catecholamine in patients with obstructive sleep apnea and arterial hypertension. PLoS One 2014; 9:e98407. [PMID: 24911183 PMCID: PMC4049580 DOI: 10.1371/journal.pone.0098407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 05/02/2014] [Indexed: 11/23/2022] Open
Abstract
Background Measurements of plasma and urinary catecholamine are susceptible to confounding factors that influence the results, complicating the interpretation of sympathetic nervous system (SNS) activity in the Obstructive sleep apnea (OSA) and arterial hypertension (HYP) conditions. Objective In this study, we validated a test for platelet catecholamine and compared the catecholamine levels (adrenaline and noradrenaline) in urine, plasma and platelets in patients with OSA and HYP compared with controls. Methods In the validation, 30 healthy, nonsmoking volunteers who were not currently undergoing treatment or medication were selected as the control group. One hundred fifty-four individuals (114 OSA, 40 non-OSA) were consecutively selected from the outpatient clinic of the Sleep Institute and underwent clinical, polysomnographic and laboratory evaluation, including the urinary, plasma and platelet levels of adrenaline (AD) and noradrenaline (NA). Patients were then allocated to groups according to the presence of OSA and/or hypertension. Results A logistic regression model, controlled for age and BMI, showed that urinary AD and urinary NA were risk factors in the OSA+HYP group and the HYP group; however, the model showed higher levels of platelet NA for OSA without HYP. After 1 year of CPAP (continuous upper airway pressure) treatment, patients (n = 9) presented lower levels of urinary NA (p = 0.04) and platelet NA (p = 0.05). Conclusion Urinary NA and AD levels were significantly associated with the condition of hypertension with and without OSA, whereas platelet NA with OSA without comorbidity. These findings suggest that platelet catecholamine levels might reflect nocturnal sympathetic activation in OSA patients without hypertension.
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Affiliation(s)
- Marcia C. Feres
- Psychobiology Department of Universidade Federal de São Paulo, Sao Paulo, SP, Brazil
- * E-mail:
| | - Fatima D. Cintra
- Cardiology Department of Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Camila F. Rizzi
- Psychobiology Department of Universidade Federal de São Paulo, Sao Paulo, SP, Brazil
| | - Luciane Mello-Fujita
- Psychobiology Department of Universidade Federal de São Paulo, Sao Paulo, SP, Brazil
| | | | - Sergio Tufik
- Psychobiology Department of Universidade Federal de São Paulo, Sao Paulo, SP, Brazil
- Associação Fundo de Incentivo a Pesquisa – AFIP- São Paulo, São Paulo, SP, Brazil
| | - Dalva Poyares
- Psychobiology Department of Universidade Federal de São Paulo, Sao Paulo, SP, Brazil
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Korayem MM, Witmans M, MacLean J, Heo G, El-Hakim H, Flores-Mir C, Major PW. Craniofacial morphology in pediatric patients with persistent obstructive sleep apnea with or without positive airway pressure therapy: a cross-sectional cephalometric comparison with controls. Am J Orthod Dentofacial Orthop 2013; 144:78-85. [PMID: 23810049 DOI: 10.1016/j.ajodo.2013.02.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 02/01/2013] [Accepted: 02/01/2013] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Compression on the midface with nasal mask-delivered positive airway pressure (PAP) therapy in growing patients might contribute to midface retrusion. The objective of this study was to investigate the association between long-term PAP use and craniofacial morphologic pattern in children with persistent obstructive sleep apnea. METHODS Images generated with cone-beam volumetric imaging were used to complete lateral cephalometric analyses of anteroposterior projection of the midface region. The study group included 12 subjects (10 boys, 2 girls; mean age, 9.0 years) who used PAP therapy for at least 6 months and at least 6 hours per night. Measurements from this group were compared with those of a control group of 11 subjects (5 boys, 6 girls; mean age, 9.6 years) with obstructive sleep apnea who did not have PAP. Measurements were taken at 1 time point. RESULTS No significant differences were identified between the groups for any cephalometric variable. Multivariate linear regression analysis also did not identify a significant association between the number of months of PAP therapy and the cephalometric variables. Cephalometric data for both groups were pooled for comparison with appropriate published normative values for age and sex. Anterior cranial base length, overall anteroposterior length of the maxillary base, and mandibular body length were significantly shorter than normal in the subjects compared with published normative values. CONCLUSIONS No association was demonstrated between midface projection and PAP use in growing patients. When compared with normative data for anterior cranial base, children with obstructive sleep apnea had shorter maxillary and mandibular lengths.
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Affiliation(s)
- Mohammed M Korayem
- Clinical instructor, Division of Orthodontics, School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
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Fletcher A, Choi J, Awadalla M, Potash AE, Wallen TJ, Fletcher S, Chang EH. The effect of geniglossal advancement on airway flow using a computational flow dynamics model. Laryngoscope 2013; 123:3227-32. [PMID: 23686418 DOI: 10.1002/lary.24203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 04/23/2013] [Accepted: 04/23/2013] [Indexed: 11/10/2022]
Abstract
OBJECTIVES/HYPOTHESIS Obstructive sleep apnea (OSA) is a sleep disorder caused by partial or complete collapse of the pharyngeal airway. Genioglossal advancement (GGA) is a well-tolerated surgical procedure intended to address hypopharyngeal collapse, yet there are few studies that monitor changes in airflow dynamics at this site. Computation fluid dynamics (CFD) utilizes airflow simulation to predict changes in airflow after anatomic manipulation. STUDY DESIGN We investigated the change in volume and airflow dynamics of the pharyngeal airway after GGA in a cadaveric model. METHODS We performed serial GGA from 1 mm (control) to 3, 7, and 9 mm on a lightly preserved cadaver. After each intervention, we performed high-resolution computed tomography scans, reconstructed the pharyngeal airway, and quantified airspace volume and CFD analysis with both laminar and large eddy simulation models. RESULTS Airway volume increased with linear GGA. In both CFD simulation models, velocity increased and pressure decreased after 9-mm advancement secondary to increased airway diameter and less abrupt changes in airway geometry. CONCLUSIONS These results suggest that GGA may be effective in increasing airway volume and flow to address hypopharyngeal obstruction in OSA.
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Affiliation(s)
- Aaron Fletcher
- Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, U.S.A
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Goodson BL, Wung SF, Archbold KH. Obstructive sleep apnea hypopnea syndrome and metabolic syndrome: a synergistic cardiovascular risk factor. ACTA ACUST UNITED AC 2012. [PMID: 23190127 DOI: 10.1111/j.1745-7599.2012.00771.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE Cardiovascular disease (CVD) is the leading cause of morbidity and mortality for adults in the United States. One risk factor for CVD is metabolic syndrome, which encompasses obesity, hypertension, insulin resistance, proinflammatory state, and prothrombotic state. A lesser-understood risk factor is obstructive sleep apnea hypopnea syndrome (OSAHS). This article explores the physiological consequences of the interaction between OSAHS and metabolic syndrome on the cardiovascular system. DATA SOURCES Search terms "metabolic syndrome,""obstructive sleep apnea,""cardiovascular disease,""diabetes,""obesity," and "atherosclerosis," were used. Studies involving children were excluded. CONCLUSIONS Both metabolic syndrome and OSAHS have significant impact on the cardiovascular system; however, when both conditions are present together, the impact is synergistic and CVD risk is multiplied. Treatment with continuous positive airway pressure (CPAP) reduces the global burden of CVD risk. IMPLICATIONS FOR PRACTICE Providers need to screen patients routinely for both metabolic syndrome and OSAHS. Treatment should include CPAP, weight reduction, oral appliances, and/or upper airway surgeries with concurrent management for metabolic syndrome. Future research should further elucidate the mechanisms of action by which OSAHA and metabolic syndrome contribute to CVD. This understanding can lead to more stringent guidelines on the management of metabolic syndrome and OSAHS.
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Chen H, Lowe AA. Updates in oral appliance therapy for snoring and obstructive sleep apnea. Sleep Breath 2012; 17:473-86. [DOI: 10.1007/s11325-012-0712-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 01/27/2012] [Accepted: 04/16/2012] [Indexed: 10/28/2022]
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Lettieri CJ, Paolino N, Eliasson AH, Shah AA, Holley AB. Comparison of adjustable and fixed oral appliances for the treatment of obstructive sleep apnea. J Clin Sleep Med 2012; 7:439-45. [PMID: 22003337 DOI: 10.5664/jcsm.1300] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES To compare the efficacy of adjustable and fixed oral appliances for the treatment of OSA. METHODS Retrospective review of consecutive patients with OSA treated with either adjustable or fixed oral appliances. Polysomnography was conducted before and during therapy. Effective treatment was defined as an apnea-hypopnea index (AHI) < 5 events/h or < 10 events/h with resolution of sleepiness (Epworth < 10). We compared efficacy rates between fixed and adjustable appliances and sought to identify factors associated with greater success. RESULTS We included 805 patients, 602 (74.8%) treated with an adjustable and 203 (25.2%) a fixed oral appliances. Among the cohort, 86.4% were men; mean age was 41.3 ± 9.2 years. Mean AHI was 30.7 ± 25.6, with 34.1% having mild (AHI 5-14.9), 29.2% moderate (AHI 15-29.9), and 36.8% severe (AHI ≥ 30) OSA. Successful therapy was significantly more common with adjustable appliances. Obstructive events were reduced to < 5/h in 56.8% with adjustable compared to 47.0% with fixed appliances (p = 0.02). Similarly, a reduction of events to < 10 with resolution of sleepiness occurred in 66.4% with adjustable appliances versus 44.9% with fixed appliances (p < 0.001). For both devices, success was more common in younger patients, with lower BMI and less severe disease. CONCLUSIONS Adjustable devices produced greater reductions in obstructive events and were more likely to provide successful therapy, especially in moderate-severe OSA. Fixed appliances were effective in mild disease, but were less successful in those with higher AHIs. Given these findings, the baseline AHI should be considered when selecting the type of oral appliance.
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Affiliation(s)
- Christopher J Lettieri
- Pulmonary, Critical Care, and Sleep Medicine, Walter Reed Army Medical Center, Washington, DC 20307, USA.
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Antonopoulos CN, Sergentanis TN, Daskalopoulou SS, Petridou ET. Nasal continuous positive airway pressure (nCPAP) treatment for obstructive sleep apnea, road traffic accidents and driving simulator performance: a meta-analysis. Sleep Med Rev 2010; 15:301-10. [PMID: 21195643 DOI: 10.1016/j.smrv.2010.10.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 10/27/2010] [Accepted: 10/28/2010] [Indexed: 01/08/2023]
Abstract
We used meta-analysis to synthesize current evidence regarding the effect of nasal continuous positive airway pressure (nCPAP) on road traffic accidents in patients with obstructive sleep apnea (OSA) as well as on their performance in driving simulator. The primary outcomes were real accidents, near miss accidents, and accident-related events in the driving simulator. Pooled odds ratios (ORs), incidence rate ratios (IRRs) and standardized mean differences (SMDs) were appropriately calculated through fixed or random effects models after assessing between-study heterogeneity. Furthermore, risk differences (RDs) and numbers needed to treat (NNTs) were estimated for real and near miss accidents. Meta-regression analysis was performed to examine the effect of moderator variables and publication bias was also evaluated. Ten studies on real accidents (1221 patients), five studies on near miss accidents (769 patients) and six studies on the performance in driving simulator (110 patients) were included. A statistically significant reduction in real accidents (OR=0.21, 95% CI=0.12-0.35, random effects model; IRR=0.45, 95% CI=0.34-0.59, fixed effects model) and near miss accidents (OR=0.09, 95% CI=0.04-0.21, random effects model; IRR=0.23, 95% CI=0.08-0.67, random effects model) was observed. Likewise, a significant reduction in accident-related events was observed in the driving simulator (SMD=-1.20, 95% CI=-1.75 to -0.64, random effects). The RD for real accidents was -0.22 (95% CI=-0.32 to -0.13, random effects), with NNT equal to five patients (95% CI=3-8), whereas for near miss accidents the RD was -0.47 (95% CI=-0.69 to -0.25, random effects), with NNT equal to two patients (95% CI=1-4). For near miss accidents, meta-regression analysis suggested that nCPAP seemed more effective among patients entering the studies with higher baseline accident rates. In conclusion, all three meta-analyses demonstrated a sizeable protective effect of nCPAP on road traffic accidents, both in real life and virtual environment.
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Affiliation(s)
- Constantine N Antonopoulos
- Center for Research and Prevention of Injuries (CEREPRI), Department of Hygiene, Epidemiology and Medical Statistics, Athens University Medical School, 75 Mikras Asias Str., 11527 Athens, Greece.
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Xie H, Leung KL, Chen L, Chan YS, Ng PC, Fok TF, Wing YK, Ke Y, Li AM, Yung WH. Brain-derived neurotrophic factor rescues and prevents chronic intermittent hypoxia-induced impairment of hippocampal long-term synaptic plasticity. Neurobiol Dis 2010; 40:155-62. [PMID: 20553872 DOI: 10.1016/j.nbd.2010.05.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Revised: 05/11/2010] [Accepted: 05/17/2010] [Indexed: 01/24/2023] Open
Abstract
Obstructive sleep apnea (OSA) is a common sleep and breathing disorder characterized by repeated episodes of hypoxemia. OSA causes neurocognitive deficits including perception and memory impairment but the underlying mechanisms are unknown. Here we show that in a mouse model of OSA, chronic intermittent hypoxia treatment impairs both early- and late-phase long-term potentiation (LTP) in the hippocampus. In intermittent hypoxia-treated mice the excitability of CA1 neurons was reduced and hippocampal brain-derived neurotrophic factor (BDNF) was down-regulated. We further showed that exogenous application of BDNF restored the magnitude of LTP in hippocampal slices from hypoxia-treated mice. In addition, microinjection of BDNF into the brain of the hypoxic mice prevented the impairment in LTP. These data suggest that intermittent hypoxia impairs hippocampal neuronal excitability and reduces the expression of BDNF leading to deficits in LTP and memory formation. Thus, BDNF level may be a novel therapeutic target for alleviating OSA-induced neurocognitive deficits.
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Affiliation(s)
- Hui Xie
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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