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Influence of Obstructive Sleep Apnoea Severity on Coronary Collateral Recruitment During Coronary Occlusion. Lung 2021; 199:409-416. [PMID: 34374863 DOI: 10.1007/s00408-021-00462-6] [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] [Received: 06/07/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Obstructive sleep apnoea (OSA) which results in hypoxia may affect the ability to recruit coronary collaterals. The aim of this study was to determine whether the severity of OSA affects collateral recruitment in patients with total coronary occlusions. METHODS Patients with total coronary artery occlusion were reviewed. Records from the sleep investigation laboratory were reviewed to identify those patients who had undergone diagnostic polysomnography. Robust coronary collaterals were those with Rentrop grade 2 or 3 collaterals. RESULTS Sixty-four patients with a total coronary occlusion had polysomnography performed, of whom 60 patients had OSA. Thirty-two patients (53.3%) had poor collaterals, whilst 28 (46.7%) had robust collaterals. Twenty-four (40%) patients had mild OSA, 10 (16.7%) had moderate OSA and 26 (43.3%) had severe OSA. Patients with robust collaterals were more likely to be males (96.4% vs 74.3%, p < 0.05) and have a history of hypercholesterolaemia (88.9% vs 51.6%, p < 0.01). Patients with robust collaterals had a lower apnoea-hypopnoea index (13.6 vs 45.5, p < 0.05), a higher MinSaO2 (85.4% vs 79.8%, p < 0.05), less time SaO2 < 90% (0 min vs 30.4 min, p < 0.05) and lower oxygen desaturation index (6.9 vs 26.8, p < 0.05). Those with moderate OSA had a higher mean Rentrop grade (1.6 ± 0.3) than those with mild OSA (1.5 ± 1.1) and severe OSA (0.6 ± 0.2). CONCLUSION The presence of more severe OSA is associated with poorer coronary collateral recruitment in patients with total coronary artery occlusion. The effect of treatment of OSA on subsequent ability to recruit collaterals and other cardioprotective mechanisms requires further research.
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Allahwala UK, Cistulli P, Ciofani JL, Dissanayake HU, Ward M, Weaver JC, Bhindi R. Influence of Obstructive Sleep Apnoea on Outcomes in Patients With ST Elevation Myocardial Infarction (STEMI): the Role of the Coronary Collateral Circulation. Heart Lung Circ 2021; 30:1883-1890. [PMID: 34366217 DOI: 10.1016/j.hlc.2021.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 06/07/2021] [Accepted: 07/06/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Obstructive sleep apnoea (OSA) occurs frequently in patients with coronary artery disease, with associated intermittent hypoxia a possible stimulus for coronary collateral recruitment through ischaemic preconditioning. We sought to determine whether OSA affects recruitment of coronary collaterals and prognosis of patients presenting with ST elevation myocardial infarction (STEMI). METHODS Patients with a STEMI undergoing percutaneous coronary intervention (PCI) from July 2010 to December 2019 were reviewed. Electronic medical records were accessed to determine documented patient history of OSA. Patients with robust collaterals were defined as Rentrop grade 2 or 3. RESULTS 1,863 patients were included, of which 143 (7.7%) patients had documented evidence of OSA in their health record. Patients with OSA had a higher body mass index (BMI) (30.2 kg/m2 vs 27 kg/m2, p<0.0001), greater rate of hypertension (61.1% vs 45.1%, p<0.0001), hypercholesterolaemia (47.4% vs 38.4%, p<0.05) and diabetes mellitus (22.6% vs 15.9%, p<0.05). Patients with OSA were more likely to have robust coronary collaterals (OR: 2.2 [95% CI: 1.5-3.2]) and a lower rate of left ventricular (LV) impairment (50.7% vs 63.1%, p<0.01), a higher LV ejection fraction (50.3% vs 46.7%, p<0.0001) and a lower peak troponin-I level (26,452 ng/L vs 39,469 ng/L, p<0.01). There were no differences in rates of in-hospital or longer term mortality, in patients with OSA compared to those without. CONCLUSIONS Patients with documented OSA presenting with STEMI appear to have more robust coronary collaterals observed on angiography which likely mediates lower myocardial necrosis. Broader implications of this finding on treatment require further investigation.
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Affiliation(s)
- Usaid K Allahwala
- Department of Cardiology, Royal North Shore Hospital, Sydney, NSW, Australia; The University of Sydney, Sydney, NSW, Australia.
| | - Peter Cistulli
- Centre for Sleep Health and Research, Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, Sydney, NSW, Australia; Sleep Research Group, Charles Perkins Centre, School of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Jonathan L Ciofani
- Department of Cardiology, Royal North Shore Hospital, Sydney, NSW, Australia. https://twitter.com/JonathanCiofani
| | - Hasthi U Dissanayake
- Sleep Research Group, Charles Perkins Centre, School of Medicine, University of Sydney, Sydney, NSW, Australia
| | - Michael Ward
- Department of Cardiology, Royal North Shore Hospital, Sydney, NSW, Australia; The University of Sydney, Sydney, NSW, Australia
| | - James C Weaver
- The University of Sydney, Sydney, NSW, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Ravinay Bhindi
- Department of Cardiology, Royal North Shore Hospital, Sydney, NSW, Australia; The University of Sydney, Sydney, NSW, Australia. https://twitter.com/Ravinay
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Lim R, Messineo L, Grunstein RR, Carberry JC, Eckert DJ. The noradrenergic agent reboxetine plus the antimuscarinic hyoscine butylbromide reduces sleep apnoea severity: a double-blind, placebo-controlled, randomised crossover trial. J Physiol 2021; 599:4183-4195. [PMID: 34174090 DOI: 10.1113/jp281912] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 06/23/2021] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS Recent animal and human physiology studies indicate that noradrenergic and muscarinic processes are key mechanisms that mediate pharyngeal muscle control during sleep. The noradrenergic agent reboxetine combined with the anti-muscarinic hyoscine butylbromide has recently been shown to improve upper airway function during sleep in healthy individuals. However, whether these findings translate to the clinically relevant patient population of people with obstructive sleep apnoea (OSA), and the effects of the agents on OSA severity, are unknown. We found that reboxetine plus hyoscine butylbromide reduced OSA severity, including overnight hypoxaemia, via increases in pharyngeal muscle responsiveness, improvements in respiratory control and airway collapsibility without changing the respiratory arousal threshold. These findings provide mechanistic insight into the role of noradrenergic and anti-muscarinic agents on upper airway stability and breathing during sleep and are important for pharmacotherapy development for OSA. ABSTRACT The noradrenergic agent reboxetine combined with the anti-muscarinic hyoscine butylbromide has recently been shown to improve upper airway function during sleep in healthy individuals. However, the effects of this drug combination on obstructive sleep apnoea (OSA) severity are unknown. Accordingly, this study aimed to determine if reboxetine plus hyoscine butylbromide reduces OSA severity. Secondary aims were to investigate the effects on key upper airway physiology and endotypic traits. Twelve people with OSA aged 52 ± 13 years, BMI = 30 ± 5 kg/m2 , completed a double-blind, randomised, placebo-controlled, crossover trial (ACTRN12617001326381). Two in-laboratory sleep studies with nasal mask, pneumotachograph, epiglottic pressure sensor and bipolar fine-wire electrodes into genioglossus and tensor palatini muscles were performed separated by approximately 1 week. Each participant received either reboxetine (4 mg) plus hyoscine butylbromide (20 mg), or placebo immediately prior to sleep. Polysomnography, upper airway physiology and endotypic estimates of OSA were compared between conditions. Reboxetine plus hyoscine butylbromide reduced the apnoea/hypopnoea index by (mean ± SD) 17 ± 17 events/h from 51 ± 30 to 33 ± 22 events/h (P = 0.005) and nadir oxygen saturation increased by 6 ± 5% from 82 ± 5 to 88 ± 2% (P = 0.002). The drug combination increased tonic genioglossus muscle responsiveness during non-REM sleep (median [25th, 75th centiles]: -0.007 [-0.0004, -0.07] vs. -0.12 [-0.02, -0.40] %maxEMG/cmH2 O, P = 0.02), lowered loop gain (0.43 ± 0.06 vs. 0.39 ± 0.07, P = 0.01), and improved airway collapsibility (90 [69, 95] vs. 93 [88, 96] %eupnoea, P = 0.02), without changing the arousal threshold (P = 0.39). These findings highlight the important role that noradrenergic and muscarinic processes have on upper airway function during sleep and the potential for pharmacotherapy to target these mechanisms to treat OSA.
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Affiliation(s)
- Richard Lim
- Neuroscience Research Australia (NeuRA), New South Wales, Sydney, Australia.,School of Medical Sciences, University of New South Wales, New South Wales, Sydney, Australia
| | - Ludovico Messineo
- Flinders Health and Medical Research Institute and Adelaide Institute for Sleep Health, Flinders University, Bedford Park, South Australia, Australia
| | - Ronald R Grunstein
- Woolcock Institute of Medical Research, Sydney Medical School, the University of Sydney, New South Wales, Glebe, Australia.,Department of Respiratory and Sleep Medicine, Royal Prince Alfred Hospital, New South Wales, Camperdown, Australia
| | - Jayne C Carberry
- Neuroscience Research Australia (NeuRA), New South Wales, Sydney, Australia.,Flinders Health and Medical Research Institute and Adelaide Institute for Sleep Health, Flinders University, Bedford Park, South Australia, Australia.,UCD School of Medicine, University College Dublin, Belfield, Dublin, Ireland
| | - Danny J Eckert
- Neuroscience Research Australia (NeuRA), New South Wales, Sydney, Australia.,School of Medical Sciences, University of New South Wales, New South Wales, Sydney, Australia.,Flinders Health and Medical Research Institute and Adelaide Institute for Sleep Health, Flinders University, Bedford Park, South Australia, Australia
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Dynamic sleep MRI in obstructive sleep apnea: a systematic review and meta-analysis. Eur Arch Otorhinolaryngol 2021; 279:595-607. [PMID: 34241671 PMCID: PMC8266991 DOI: 10.1007/s00405-021-06942-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 06/11/2021] [Indexed: 12/30/2022]
Abstract
Purpose The objective of this study is to systematically review the international literature for dynamic sleep magnetic resonance imaging (MRI) as a diagnostic tool in obstructive sleep apnea (OSA), to perform meta-analysis on the quantitative data from the review, and to discuss its implications in future research and potential clinical applications. Study design A comprehensive review of the literature was performed, followed by a detailed analysis of the relevant data that has been published on the topic. Methods Clinical key, Uptodate, Ovid, Ebscohost, Pubmed/MEDLINE, Scopus, Dynamed, Web of Science and The Cochrane Library were systematically searched. Once the search was completed, dynamic sleep MRI data were analyzed. Results Nineteen articles reported on 410 OSA patients and 79 controls that underwent dynamic sleep MRI and were included in this review. For meta-analysis of dynamic sleep MRI data, eight articles presented relevant data on 160 OSA patients. Obstruction was reported as follows: retropalatal (RP) 98%, retroglossal (RG) 41% and hypopharyngeal (HP) in 5%. Lateral pharyngeal wall (LPW) collapse was found in 35/73 (48%) patients. The combinations of RP + RG were observed in 24% and RP + RG + LPW in 16%. If sedation was used, 98% of study participants fell asleep compared to 66% of unsedated participants. Conclusions Dynamic sleep MRI has demonstrated that nearly all patients have retropalatal obstruction, retroglossal obstruction is common and hypopharyngeal obstruction is rare. Nearly all patients (98%) who are sedated are able to fall asleep during the MRI. There is significant heterogeneity in the literature and standardization is needed. Supplementary Information The online version contains supplementary material available at 10.1007/s00405-021-06942-y.
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OSA Upper Airways Surgery: A Targeted Approach. ACTA ACUST UNITED AC 2021; 57:medicina57070690. [PMID: 34356971 PMCID: PMC8305825 DOI: 10.3390/medicina57070690] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 01/12/2023]
Abstract
Obstructive sleep apnea syndrome (OSA) is a multi-factorial disorder, with quite complex endotypes, consisting of anatomical and non-anatomical pathophysiological factors. Continuous positive airway pressure (CPAP) is recognized as the first-line standard treatment for OSA, whereas upper airway (UA) surgery is often recommended for treating OSA patients who have refused or cannot tolerate CPAP. The main results achievable by the surgery are UA expansion, and/or stabilization, and/or removal of the obstructive tissue to different UA levels. The site and pattern of UA collapse identification is of upmost importance in selecting the customized surgical procedure to perform, as well as the identification of the relation between anatomical and non-anatomical factors in each patient. Medical history, sleep studies, clinical examination, UA endoscopy in awake and drug-induced sedation, and imaging help the otorhinolaryngologist in selecting the surgical candidate, identifying OSA patients with mild UA collapsibility or tissue UA obstruction, which allow achievement of the best surgical outcomes. Literature data reported that the latest palatal surgical procedures, such as expansion sphincter palatoplasty or barbed reposition palatoplasty, which achieve soft palatal and lateral pharyngeal wall remodeling and stiffening, improved the Apnea Hypopnea Index, but the outcome analyses are still limited by methodological bias and the limited number of patients' in each study. Otherwise, the latest literature data have also demonstrated the role of UA surgery in the improvement of non-anatomical factors, confirming that a multidisciplinary and multimodality diagnostic and therapeutical approach to OSA patients could allow the best selection of customized treatment options and outcomes.
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106
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Bosi M, Incerti Parenti S, Sanna A, Plazzi G, De Vito A, Alessandri-Bonetti G. Non-continuous positive airway pressure treatment options in obstructive sleep apnoea: A pathophysiological perspective. Sleep Med Rev 2021; 60:101521. [PMID: 34280847 DOI: 10.1016/j.smrv.2021.101521] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 06/02/2021] [Accepted: 06/24/2021] [Indexed: 12/16/2022]
Abstract
The phenotyping of the pathophysiology of obstructive sleep apnoea (OSA) lies at the core of tailored treatments and it is one of the most debated topics in sleep medicine research. Recent sophisticated techniques have broadened the horizon for gaining insight into the variability of the endotypic traits in patients with OSA which account for the heterogeneity in the clinical presentation of the disease and consequently, in the outcome of treatment. However, the implementation of these concepts into clinical practice is still a major challenge for both researchers and clinicians in order to develop tailored therapies targeted to specific endotypic traits that contribute to OSA in each individual patient. This review summarizes available scientific evidence in order to point out the links between endotypic traits (pharyngeal airway collapsibility, upper airway neuromuscular compensation, loop gain and arousal threshold) and the most common non-continuous positive airway pressure (CPAP) treatment options for OSA (mandibular advancement device, upper airway surgery, medication therapy, positional therapy) and to clarify to what extent endotypic traits could help to better predict the success of these therapies. A narrative guide is provided; current design limitations and future avenues of research are discussed, with clinical and research perspectives.
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Affiliation(s)
- Marcello Bosi
- Centro Disturbi del Sonno, Ospedali Privati Forlì, Forlì, Italy
| | - Serena Incerti Parenti
- Unit of Orthodontics and Sleep Dentistry, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Antonio Sanna
- Azienda USL Toscana Centro, Pneumology and Bronchial Endoscopy Unit, San Giuseppe Hospital, Empoli, FI, Italy
| | - Giuseppe Plazzi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy; Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio-Emilia, Modena, Italy
| | - Andrea De Vito
- Head & Neck Department, ENT Unit, Ravenna Hospital, Romagna Health Service, Italy
| | - Giulio Alessandri-Bonetti
- Unit of Orthodontics and Sleep Dentistry, Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy.
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107
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Ferrer-Lluis I, Castillo-Escario Y, Montserrat JM, Jané R. SleepPos App: An Automated Smartphone Application for Angle Based High Resolution Sleep Position Monitoring and Treatment. SENSORS 2021; 21:s21134531. [PMID: 34282793 PMCID: PMC8271412 DOI: 10.3390/s21134531] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 11/17/2022]
Abstract
Poor sleep quality or disturbed sleep is associated with multiple health conditions. Sleep position affects the severity and occurrence of these complications, and positional therapy is one of the less invasive treatments to deal with them. Sleep positions can be self-reported, which is unreliable, or determined by using specific devices, such as polysomnography, polygraphy or cameras, that can be expensive and difficult to employ at home. The aim of this study is to determine how smartphones could be used to monitor and treat sleep position at home. We divided our research into three tasks: (1) develop an Android smartphone application (‘SleepPos’ app) which monitors angle-based high-resolution sleep position and allows to simultaneously apply positional treatment; (2) test the smartphone application at home coupled with a pulse oximeter; and (3) explore the potential of this tool to detect the positional occurrence of desaturation events. The results show how the ‘SleepPos’ app successfully determined the sleep position and revealed positional patterns of occurrence of desaturation events. The ‘SleepPos’ app also succeeded in applying positional therapy and preventing the subjects from sleeping in the supine sleep position. This study demonstrates how smartphones are capable of reliably monitoring high-resolution sleep position and provide useful clinical information about the positional occurrence of desaturation events.
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Affiliation(s)
- Ignasi Ferrer-Lluis
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
- Correspondence: (I.F.-L.); (R.J.)
| | - Yolanda Castillo-Escario
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
| | - Josep Maria Montserrat
- Sleep Lab, Pneumology Service, Hospital Clínic de Barcelona, 08036 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain
| | - Raimon Jané
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain;
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
- Correspondence: (I.F.-L.); (R.J.)
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108
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Tan SN, Yang HC, Lim SC. Anatomy and Pathophysiology of Upper Airway Obstructive Sleep Apnoea: Review of the Current Literature. SLEEP MEDICINE RESEARCH 2021. [DOI: 10.17241/smr.2020.00829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Migueis DP, Lopes MC, Ignacio PSD, Thuler LCS, Araujo-Melo MH, Spruyt K, Lacerda GCB. A systematic review and meta-analysis of the cyclic alternating pattern across the lifespan. Sleep Med 2021; 85:25-37. [PMID: 34271180 DOI: 10.1016/j.sleep.2021.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/13/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Cyclic alternating pattern (CAP) is the electroencephalogram (EEG) pattern described as a marker of sleep instability and assessed by NREM transient episodes in sleep EEG. It has been associated with brain maturation. The aim of this review was to evaluate the normative data of CAP parameters according to the aging process in healthy subjects through a systematic review and meta-analysis. METHODS Two authors independently searched databases using PRISMA guidelines. Discrepancies were reconciled by a third reviewer. Subgroup analysis and tests for heterogeneity were conducted. RESULTS Of 286 studies, 10 submitted a total of 168 healthy individuals to CAP analysis. Scoring of CAP can begin at 3 months of life, when K-complexes, delta bursts, or spindles can be recognized. Rate of CAP increased with age, mainly during the first 2 years of life, then decreased in adolescence, and increased in the elderly. The A1 CAP subtype and CAP rate were high in school-aged children during slow-wave sleep (SWS). A1 CAP subtypes were significantly more numerous in adolescents compared with other groups, while the elderly showed the highest amounts of A2 and A3 CAP subtypes. Our meta-analysis registered the lowest CAP rate in infants younger than 2 years old and the highest in the elderly. CONCLUSIONS This review summarized the normative data of CAP in NREM sleep during the aging process. The CAP rate increased with age and sleep depth, especially during SWS. Parameters of CAP may reflect gender hormonal effects and neuroplasticity. More reports on CAP subtypes are needed for their reference values establishment.
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Affiliation(s)
- D P Migueis
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil; Antonio Pedro University Hospital / Fluminense Federal University, Niterói, Brazil.
| | - M C Lopes
- Child and Adolescent Affective Disorder Program (PRATA), Department and Institute of Psychiatry at University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - P S D Ignacio
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - L C S Thuler
- National Cancer Institute, Rio de Janeiro, Brazil
| | - M H Araujo-Melo
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - K Spruyt
- INSERM, Université de Paris, NeuroDiderot, France
| | - G C B Lacerda
- PPGNEURO, Gaffree and Guinle University Hospital / Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
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Sweetman A, Lack L, McEvoy RD, Smith S, Eckert DJ, Osman A, Carberry JC, Wallace D, Nguyen PD, Catcheside P. Bi-directional relationships between co-morbid insomnia and sleep apnea (COMISA). Sleep Med Rev 2021; 60:101519. [PMID: 34229295 DOI: 10.1016/j.smrv.2021.101519] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 06/06/2021] [Accepted: 06/11/2021] [Indexed: 02/07/2023]
Abstract
Insomnia and obstructive sleep apnea (OSA) commonly co-occur. Approximately 30-50% of patients with OSA report clinically significant insomnia symptoms, and 30-40% of patients with chronic insomnia fulfil diagnostic criteria for OSA. Compared to either insomnia or OSA alone, co-morbid insomnia and sleep apnea (COMISA) is associated with greater morbidity for patients, complex diagnostic decisions for clinicians, and reduced response to otherwise effective treatment approaches. Potential bi-directional causal relationships between the mechanisms and manifestations of insomnia and OSA could play an integral role in the development and management of COMISA. A greater understanding of these relationships is required to guide personalized diagnostic and treatment approaches for COMISA. This review summarizes the available evidence of bi-directional relationships between COMISA, including epidemiological research, case studies, single-arm treatment studies, randomized controlled treatment trials, and objective sleep study data. This evidence is integrated into a conceptual model of COMISA to help refine the understanding of potential bi-directional causal relationships between the two disorders. This theoretical framework is essential to help guide future research, improve diagnostic tools, determine novel therapeutic targets, and guide tailored sequenced and multi-faceted treatment approaches for this common, complex, and debilitating condition.
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Affiliation(s)
- Alexander Sweetman
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Leon Lack
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Education Psychology and Social Work, Flinders University, Adelaide, Australia.
| | - R Doug McEvoy
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Simon Smith
- Institute for Social Science Research (ISSR), The University of Queensland, Brisbane, 4027, Australia.
| | - Danny J Eckert
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Amal Osman
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
| | - Jayne C Carberry
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia; University College Dublin, School of Medicine, Dublin, Ireland.
| | - Douglas Wallace
- Department of Neurology, Sleep Medicine Division, University of Miami Miller School of Medicine, Miami, FL, USA; Neurology Service, Bruce W. Carter Department of Veterans Affairs Medical Center, Miami, FL, USA.
| | - Phuc D Nguyen
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Science and Engineering, Flinders University, Adelaide, Australia.
| | - Peter Catcheside
- The Adelaide Institute for Sleep Health: A Centre of Research Excellence, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, Adelaide, Australia.
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Peñacoba P, Llauger MA, Fortuna AM, Flor X, Sampol G, Pedro Pijoan AM, Grau N, Santiveri C, Juvanteny J, Aoiz JI, Bayó J, Lloberes P, Mayos M. Primary care and sleep unit agreement in management decisions for sleep apnea: a prospective study in Spain. J Clin Sleep Med 2021; 16:1579-1589. [PMID: 32279702 DOI: 10.5664/jcsm.8492] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
STUDY OBJECTIVES Involvement of primary care teams in the care of patients with OSA is a focus of interest. The study objective was to compare diagnostic and therapeutic agreement between decisions taken by primary care professionals and sleep unit specialists. METHODS This was a prospective multicenter study conducted at primary care and specialized care centers in the urban area of Barcelona, Spain. Men and women aged 18-75 years who visited the participating primary care centers for any reason were recruited. Both primary care physicians and sleep specialists made a diagnostic and therapeutic decision with clinical data and results of a home sleep apnea test. All patients were finally assessed with respiratory polygraphy or polysomnography as a gold-standard test. RESULTS A total of 229 patients underwent a home sleep apnea test and were evaluated at the primary care centers and the sleep units. Diagnostic agreement using the same tools and excluding indeterminate decisions was 69.8% (Cohen's kappa = 0.64; 95% confidence interval, 0.56-0.72). Agreement for therapeutic decisions (PAP vs conservative treatment) was obtained in 82.5% of patients (Cohen's kappa = 0.62; 95% confidence interval, 0.51-0.73), increasing to 92.5% (Cohen's kappa = 0.49, 95% confidence interval, 0.40-0.58) when indeterminate options were excluded. As compared with the final therapeutic decisions made at the sleep unit with respiratory polygraphy/polysomnography, primary care physicians agreed regarding 83.3% (Cohen's kappa = 0.62; 95% confidence interval, 0.49-0.74) of patients. CONCLUSIONS Primary care professionals may assume an important role in the management of OSA in coordination with sleep centers, identifying patients who require specific treatment and should be referred to specialized care. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Name: PASHOS Project: Advanced Platform for Sleep Apnea Syndrome Assessment; URL: https://clinicaltrials.gov/ct2/show/NCT02591979; Identifier: NCT02591979.
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Affiliation(s)
- Patricia Peñacoba
- Sleep Unit, Department of Respiratory Diseases, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Antònia Llauger
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,Equip d'Atenció Primària Encants, Centre d'Atenció Primària (CAP) Maragall, Institut Català de la Salut, Barcelona, Spain
| | - Ana M Fortuna
- Sleep Unit, Department of Respiratory Diseases, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Flor
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,CAP Chafarinas, Institut Català de la Salut, Barcelona, Spain
| | - Gabriel Sampol
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,Sleep Unit, Service of Pneumology, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Respiratorias, Instituto de Investigación Carlos III, Madrid, Spain
| | | | - Núria Grau
- Centro de Investigación Biomédica en Red Enfermedades Respiratorias, Instituto de Investigación Carlos III, Madrid, Spain.,Sleep Unit, Department of Respiratory Medicine, Parc de Salut Mar-IMIM, Hospital del Mar, Barcelona, Spain
| | - Carme Santiveri
- Service of Pneumology, Hospital Dos de Maig, Consorci Sanitari Integral, Barcelona, Spain
| | - Joan Juvanteny
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,CAP Trinitat Vella, Institut Català de la Salut, Barcelona, Spain
| | | | - Joan Bayó
- CAP El Clot, Institut Català de la Salut, Barcelona, Spain
| | - Patricia Lloberes
- Sleep Unit, Service of Pneumology, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Respiratorias, Instituto de Investigación Carlos III, Madrid, Spain
| | - Mercè Mayos
- Sleep Unit, Department of Respiratory Diseases, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red Enfermedades Respiratorias, Instituto de Investigación Carlos III, Madrid, Spain
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112
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Abstract
Epidemiological studies show a steady rise in the prevalence of obstructive sleep apnea (OSA). Untreated OSA is responsible for numerous chronic health conditions, motor vehicle, and workplace-related accidents leading to substantial economic burden both to the individual and society. Multiple causes for OSA and a wide range of consequences has made its diagnosis and treatment difficult. Obstructive sleep apnea may be caused by anatomical variation, increased collapsibility of the upper airway, low sleep arousal threshold, and exaggerated response to desaturation. Lifestyle changes, anatomical corrective surgeries, and oral appliances have been used but patient compliance is poor as it interferes in the daily routine. Neuromodulation is a promising functional modifying option that addresses the cause of obstructive sleep apnea at multiple levels.
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Affiliation(s)
- Vikas Naik
- Department of Neurosurgery, Bangalore Medical College and Research Institute, Bengaluru, Karnataka, India
| | - Ninad Khandekar
- Department of Medicine, Government Medical College, Nagpur, Maharashtra, India
| | - Milind Deogaonkar
- Department of Functional Neurosurgery, West Virginia University Health Sciences, WV, USA
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113
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Heilbrunn ES, Ssentongo P, Chinchilli VM, Oh J, Ssentongo AE. Sudden death in individuals with obstructive sleep apnoea: a systematic review and meta-analysis. BMJ Open Respir Res 2021; 8:8/1/e000656. [PMID: 34108135 PMCID: PMC8191609 DOI: 10.1136/bmjresp-2020-000656] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 05/02/2021] [Indexed: 12/27/2022] Open
Abstract
Objectives Over 1 billion individuals worldwide experience some form of sleep apnoea, and this number is steadily rising. Obstructive sleep apnoea (OSA) can negatively influence one’s quality of life and potentially increase mortality risk. However, the association between OSA and mortality has not been reliably estimated. This meta-analysis estimates the risk of all-cause and cardiovascular mortality in individuals with OSA. Design Systematic review and meta-analysis. Data sources MEDLINE, Cochrane Library, Scopus and Joanna Briggs Institute Evidence-Based Practice databases were searched from inception through 1 January 2020. Eligibility criteria for selecting studies We included observational studies assessing the association of sudden deaths in individuals with and without OSA. Data extraction and synthesis Two independent reviewers (AES and ESH) extracted data and assessed the risk of bias using the Newcastle-Ottawa Scale quality assessment tool. Data were pooled using the random-effects models and reported as risk ratios (RRs) with 95% CIs. Heterogeneity was quantified with I2 statistic. Results We identified 22 observational studies (n=42 099 participants). The mean age was 62 years and 64% were men. OSA was associated with all-cause sudden death (RR=1.74, 95% CI: 1.44 to 2.10, I2=72%) and cardiovascular mortality (RR=1.94, 95% CI: 1.39 to 2.70, I2=32%). A marginally significant dose–response relationship between severity of OSA and the risk of death was observed (p for interaction=0.05): mild OSA (RR=1.16, 95% CI: 0.70 to 1.93), moderate OSA (RR=1.72, 95% CI: 1.11 to 2.67) and severe OSA (RR=2.87, 95% CI: 1.70 to 4.85). Meta-regression analysis showed that older age was a significant contributing factor in the relationship between OSA and mortality. The median study methodological quality was considered high. Conclusions OSA is a significant risk factor for all-cause mortality and cardiac mortality. Prevention and treatment strategies to optimise survival and quality of life in individuals with OSA are urgently needed. PROSPERO registration number CRD42020164941.
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Affiliation(s)
- Emily S Heilbrunn
- Public Health Sciences, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Paddy Ssentongo
- Public Health Sciences, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA.,Center for Neural Engineering, Penn State University, University Park, Pennsylvania, USA
| | - Vernon M Chinchilli
- Public Health Sciences, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
| | - John Oh
- Department Surgery, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Anna E Ssentongo
- Public Health Sciences, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA .,Department Surgery, Penn State Health Milton S Hershey Medical Center, Hershey, Pennsylvania, USA
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114
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Drummond SE, Burns DP, O'Connor KM, Clarke G, O'Halloran KD. The role of NADPH oxidase in chronic intermittent hypoxia-induced respiratory plasticity in adult male mice. Respir Physiol Neurobiol 2021; 292:103713. [PMID: 34116239 DOI: 10.1016/j.resp.2021.103713] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/18/2021] [Accepted: 06/06/2021] [Indexed: 10/21/2022]
Abstract
Reactive oxygen species (ROS) are proposed as mediators of chronic intermittent hypoxia (CIH)-induced respiratory plasticity. We sought to determine if NADPH oxidase 2 (NOX2)-derived ROS underpin CIH-induced maladaptive changes in respiratory control. Adult male mice (C57BL/6 J) were assigned to one of three groups: normoxic controls (sham); chronic intermittent hypoxia-exposed (CIH, 12 cycles/hour, 8 h/day for 14 days); and CIH + apocynin (NOX2 inhibitor, 2 mM) given in the drinking water throughout exposure to CIH. In addition, we studied sham and CIH-exposed NOX2-null mice (B6.129S-CybbTM1Din/J). Whole-body plethysmography was used to measure breathing and metabolic parameters. Ventilation (V̇I/V̇CO2) during normoxia was unaffected by CIH, but apnoea index was increased, which was prevented by apocynin, but not by NOX2 deletion. The ventilatory response to hypercapnia following exposure to CIH was potentiated in NOX2-null mice. Our results reveal ROS-dependent influences on the control of breathing and point to antioxidant intervention as a potential adjunctive therapeutic strategy in respiratory control disorders.
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Affiliation(s)
- Sarah E Drummond
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - David P Burns
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Karen M O'Connor
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Anatomy & Neuroscience, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland; Department of Psychiatry and Neurobehavioural Science, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland
| | - Ken D O'Halloran
- Department of Physiology, School of Medicine, College of Medicine & Health, University College Cork, Cork, Ireland; APC Microbiome Ireland, University College Cork, Cork, Ireland.
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115
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Predictors of obstructive sleep apnea misclassification when using total bed time versus total sleep time. Sci Rep 2021; 11:11481. [PMID: 34075091 PMCID: PMC8169653 DOI: 10.1038/s41598-021-90818-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/18/2021] [Indexed: 11/28/2022] Open
Abstract
Obstructive sleep apnea (OSA) is a highly prevalent condition worldwide. Untreated, it is associated with multiple medical complications as well as a reduced quality of life. Home sleep apnea tests are increasingly used for its diagnosis and evaluation of severity, but using total bed time rather than total sleep time may underestimate OSA severity. We aim to uncover the extent and predictors of OSA misclassification when using total bed time. A retrospective observational study was conducted using data from the sleep laboratory of the National University Hospital, Singapore, a tertiary hospital with 1200 beds. Misclassification of OSA was defined as any OSA severity that was less severe using total bed time versus total sleep time. Logistic regression was used to identify predictors of OSA misclassification. A total of 1621 patients were studied (mean age 45.6 ± 15.9 years; 73.4% male). 300 (18.5%) patients were misclassified. Risk factors for OSA misclassification included age (OR 1.02, 95% CI 1.01–1.03, P = 0.001) and body-mass index (BMI) (OR 0.97, 95% CI 0.95–0.99, P = 0.015). Risk for misclassification was significant in patients aged ≥ 57 years old, with BMI < 32.3 kg/m2. Using total bed time rather than total sleep time to quantify OSA severity was associated with a significant risk of misclassification, particularly in patients aged ≥ 57 years old, with BMI < 32.3 kg/m2.
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116
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Allahwala UK, Cistulli PA, Ekmejian A, Mughal N, Dissanayake HU, Ward M, Weaver JC, Bhindi R. Relation of Obstructive Sleep Apnea in Patients With a Coronary Chronic Total Occlusion to Coronary Collaterals and Mortality. Am J Cardiol 2021; 148:30-35. [PMID: 33675771 DOI: 10.1016/j.amjcard.2021.02.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/16/2021] [Accepted: 02/23/2021] [Indexed: 01/03/2023]
Abstract
A chronic total occlusion (CTO) is frequently identified in patients undergoing coronary angiography. The prognostic implications of intermittent hypoxia from obstructive sleep apnea (OSA) on patients with a CTO, and effects on collateral recruitment are unknown. The aim of this study was to determine the prevalence, vascular effects, and prognostic implications of the presence of OSA in patients with a CTO. Patients with a CTO between July 2010 and December 2019 were reviewed. Electronic medical records were accessed to determine documented patient history of OSA, demographics, and clinical course. Patients with robust collateral recruitment were defined as Rentrop grade 2 or 3. A total of 948 patients were included in the study, of which 127 (13.4%) had a documented history of OSA. These patients were younger (67.0 years vs 70.6 years, p < 0.01), had a higher body mass index (29.6 kg/m2 vs 26.7 kg/m2, p < 0.0001), higher rates of hypertension (91.3% vs 83.2%, p < 0.05), higher rates of smokers (63.3% vs 49.0%, p < 0.01) and more use of β-blockers (79% vs 68.5%, p < 0.05) and statins (92.7% vs 82.1%, p < 0.01). A documented history of OSA was independently associated with robust collaterals (OR 3.0 95%CI 1.5 to 5.8, p < 0.01) and lower mortality (HR 0.3 95% CI 0.1 to 0.7, p < 0.01) with a mean survival of 10.8 years, as compared to 8.1 years (log rank p < 0.0001). In conclusion, in patients with a CTO, documented OSA is independently associated with more robust coronary collaterals and lower mortality. The possible cardioprotective implications of intermittent hypoxia in OSA, as well as treatment effect requires further investigation.
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Affiliation(s)
- Usaid K Allahwala
- Department of Cardiology, Royal North Shore Hospital, Sydney, Australia; The University of Sydney, Sydney, Australia.
| | - Peter A Cistulli
- Centre for Sleep Health and Research, Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, Sydney, Australia; Sleep Research Group, Charles Perkins Centre, School of Medicine, University of Sydney, Sydney, Australia
| | - Avedis Ekmejian
- Department of Cardiology, Royal North Shore Hospital, Sydney, Australia
| | - Nadeem Mughal
- Department of Cardiology, Royal North Shore Hospital, Sydney, Australia
| | - Hasthi U Dissanayake
- Sleep Research Group, Charles Perkins Centre, School of Medicine, University of Sydney, Sydney, Australia
| | - Michael Ward
- Department of Cardiology, Royal North Shore Hospital, Sydney, Australia; The University of Sydney, Sydney, Australia
| | - James C Weaver
- The University of Sydney, Sydney, Australia; Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
| | - Ravinay Bhindi
- Department of Cardiology, Royal North Shore Hospital, Sydney, Australia; The University of Sydney, Sydney, Australia
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117
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Ferrer-Lluis I, Castillo-Escario Y, Montserrat JM, Jané R. Enhanced Monitoring of Sleep Position in Sleep Apnea Patients: Smartphone Triaxial Accelerometry Compared with Video-Validated Position from Polysomnography. SENSORS 2021; 21:s21113689. [PMID: 34073215 PMCID: PMC8198328 DOI: 10.3390/s21113689] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/13/2021] [Accepted: 05/20/2021] [Indexed: 12/11/2022]
Abstract
Poor sleep quality is a risk factor for multiple mental, cardiovascular, and cerebrovascular diseases. Certain sleep positions or excessive position changes can be related to some diseases and poor sleep quality. Nevertheless, sleep position is usually classified into four discrete values: supine, prone, left and right. An increase in sleep position resolution is necessary to better assess sleep position dynamics and to interpret more accurately intermediate sleep positions. This research aims to study the feasibility of smartphones as sleep position monitors by (1) developing algorithms to retrieve the sleep position angle from smartphone accelerometry; (2) monitoring the sleep position angle in patients with obstructive sleep apnea (OSA); (3) comparing the discretized sleep angle versus the four classic sleep positions obtained by the video-validated polysomnography (PSG); and (4) analyzing the presence of positional OSA (pOSA) related to its sleep angle of occurrence. Results from 19 OSA patients reveal that a higher resolution sleep position would help to better diagnose and treat patients with position-dependent diseases such as pOSA. They also show that smartphones are promising mHealth tools for enhanced position monitoring at hospitals and home, as they can provide sleep position with higher resolution than the gold-standard video-validated PSG.
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Affiliation(s)
- Ignasi Ferrer-Lluis
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; (Y.C.-E.)
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
- Correspondence: (I.F.-L.); (R.J.)
| | - Yolanda Castillo-Escario
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; (Y.C.-E.)
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
| | - Josep Maria Montserrat
- Sleep Lab, Pneumology Service, Hospital Clínic de Barcelona, 08036 Barcelona, Spain; (J.M.M.)
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), 28029 Madrid, Spain
| | - Raimon Jané
- Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; (Y.C.-E.)
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBERBBN), 28029 Madrid, Spain
- Department of Automatic Control (ESAII), Universitat Politècnica de Catalunya-Barcelona Tech (UPC), 08028 Barcelona, Spain
- Correspondence: (I.F.-L.); (R.J.)
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118
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McCarthy K, Saripella A, Selvanathan J, Nagappa M, Englesakis M, Wang D, Peng P, Chung F. Positive airway pressure therapy for chronic pain in patients with obstructive sleep apnea-a systematic review. Sleep Breath 2021; 26:47-55. [PMID: 34021465 DOI: 10.1007/s11325-021-02363-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 03/06/2021] [Accepted: 03/24/2021] [Indexed: 11/29/2022]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is prevalent in patients with chronic non-cancer pain. OSA may lead to low sleep quality and an increase in pain sensitivity. Patients reporting greater sleep impairment tend to experience higher pain intensity and vice versa. Positive airway pressure (PAP) is the current gold standard treatment for OSA. This review aims to evaluate the efficacy of PAP therapy in patients with comorbid chronic pain and OSA in influencing pain outcomes like pain intensity, tolerance, threshold, and sensitivity. METHODS We performed a systematic literature search for studies published after 1990, utilizing the following databases: Medline, Medline In-Process/ePubs, Embase, Cochrane CENTRAL, and the Cochrane Database of Systematic Reviews. Search terms included "chronic pain," "sleep disorders," and "positive airway pressure." RESULTS Of 1982 initial studies, ten studies met the study inclusion criteria. Seven of these studies examined the effect of PAP therapy on chronic pain, of which five demonstrated improved pain outcomes, specifically, headache pain. The effect of PAP therapy on chronic non-headache pain was found to be inconclusive. When examining the three studies that did not involve chronic pain patients, PAP therapy effectively increased pain threshold and tolerance in two studies (p = 0.03 and p = 0.01). CONCLUSION An association exists between PAP therapy and decreased chronic headache outcomes in patients with OSA. Additionally, research shows that PAP therapy may increase pain tolerance and threshold. Future high-quality evidence is required to further investigate the association between PAP and non-headache chronic pain.
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Affiliation(s)
- Kristian McCarthy
- Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, MCL 2-405, 399 Bathurst St, Toronto, M5T 2S8, ON, Canada
| | - Aparna Saripella
- Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, MCL 2-405, 399 Bathurst St, Toronto, M5T 2S8, ON, Canada
| | - Janannii Selvanathan
- Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, MCL 2-405, 399 Bathurst St, Toronto, M5T 2S8, ON, Canada
| | - Mahesh Nagappa
- Department of Anesthesia and Perioperative Medicine, London Health Sciences Centre and St. Joseph Health Care, Western University, London, Ontario, Canada
| | - Marina Englesakis
- Library and Information Services, University Health Network, Toronto, Canada
| | - David Wang
- Centre for Integrated Research and Understanding of Sleep (CIRUS), Woolcock Institute of Medical Research, Sydney Medical School, The University of Sydney, Sydney, Australia.,Department of Respiratory and Sleep Medicine, Royal Prince Alfred Hospital, The University of Sydney, Sydney, Australia
| | - Philip Peng
- Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, MCL 2-405, 399 Bathurst St, Toronto, M5T 2S8, ON, Canada
| | - Frances Chung
- Department of Anesthesiology and Pain Management, Toronto Western Hospital, University Health Network, MCL 2-405, 399 Bathurst St, Toronto, M5T 2S8, ON, Canada.
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119
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Hanif U, Leary E, Schneider L, Paulsen R, Morse AM, Blackman A, Schweitzer P, Kushida CA, Liu S, Jennum P, Sorensen H, Mignot E. Estimation of Apnea-Hypopnea Index using Deep Learning on 3D Craniofacial Scans. IEEE J Biomed Health Inform 2021; 25:4185-4194. [PMID: 33961569 DOI: 10.1109/jbhi.2021.3078127] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Obstructive sleep apnea (OSA) is characterized by decreased breathing events that occur through the night, with severity reported as the apnea-hypopnea index (AHI), which is associated with certain craniofacial features. In this study, we used data from 1366 patients collected as part of Stanford Technology Analytics and Genomics in Sleep (STAGES) across 11 US and Canadian sleep clinics and analyzed 3D craniofacial scans with the goal of predicting AHI, as measured using gold standard nocturnal polysomnography (PSG). First, the algorithm detects pre-specified landmarks on mesh objects and aligns scans in 3D space. Subsequently, 2D images and depth maps are generated by rendering and rotating scans by 45-degree increments. Resulting images were stacked as channels and used as input to multi-view convolutional neural networks, which were trained and validated in a supervised manner to predict AHI values derived from PSGs. The proposed model achieved a mean absolute error of 11.38 events/hour, a Pearson correlation coefficient of 0.4, and accuracy for predicting OSA of 67% using 10-fold cross-validation. The model improved further by adding patient demographics and variables from questionnaires. We also show that the model performed at the level of three sleep medicine specialists, who used clinical experience to predict AHI based on 3D scan displays. Finally, we created topographic displays of the most important facial features used by the model to predict AHI, showing importance of the neck and chin area. The proposed algorithm has potential to serve as an inexpensive and efficient screening tool for individuals with suspected OSA.
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120
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Aishah A, Lim R, Sands SA, Taranto-Montemurro L, Wellman A, Carberry JC, Eckert DJ. Different antimuscarinics when combined with atomoxetine have differential effects on obstructive sleep apnea severity. J Appl Physiol (1985) 2021; 130:1373-1382. [PMID: 33734828 PMCID: PMC8424567 DOI: 10.1152/japplphysiol.01074.2020] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The combination of the noradrenergic agent atomoxetine plus the antimuscarinic oxybutynin has recently been shown to improve upper airway physiology and reduce obstructive sleep apnea (OSA) severity. However, the effects of different antimuscarinics when combined with atomoxetine is limited. This study aimed to determine the effects of atomoxetine combined with two different antimuscarinics with varying M-subtype receptor selectivity on OSA severity and upper airway physiology. Ten people with predominantly severe OSA completed a double-blind, randomized, placebo-controlled, cross-over trial. Participants completed three overnight in-laboratory sleep studies after either 80 mg atomoxetine + 5 mg solifenacin succinate (ato-sol) or 80 mg atomoxetine + 2 mg biperiden hydrochloride (ato-bip) or placebo. OSA severity, ventilatory stability (loop gain), respiratory-arousal threshold (via epiglottic manometry), next-day subjective sleepiness [Karolinska Sleepiness Scale (KSS)], and alertness were compared between conditions. Neither drug combination altered the apnea/hypopnea index versus placebo (P = 0.63). Ato-sol caused a shift toward milder respiratory events with reduced frequency of obstructive apneas (13 ± 14 vs. 22 ± 17 events/h; means ± SD, P = 0.04) and increased hypopneas during nonrapid eye movement (NREM) (38 ± 21 vs. 24 ± 18 events/h, P = 0.006) with improved nadir oxygenation versus placebo (83 ± 4 vs. 80 ± 8%, P = 0.03). Both combinations reduced loop gain by ∼10% versus placebo; sleep efficiency and arousal threshold were unaltered. Ato-bip reduced next-day sleepiness versus placebo (KSS = 4.3 ± 2.2 vs. 5.6 ± 1.6, P = 0.03). Atomoxetine + biperiden hydrochloride reduces perceived sleepiness, and atomoxetine + solifenacin modestly improves upper airway function in people with OSA but to a lesser extent versus recently published atomoxetine + oxybutynin (broad M-subtype receptor selectivity) findings. These results provide novel mechanistic insight into the role of noradrenergic and antimuscarinic agents on sleep and breathing and are important for pharmacotherapy development for OSA.NEW & NOTEWORTHY In contrast to recent findings of major reductions in OSA severity when atomoxetine is combined with a nonspecific antimuscarinic, oxybutynin (broad M-subtype receptor selectivity), addition of solifenacin succinate (M2 and M3 muscarinic receptor selectivity) or biperiden (M1 muscarinic receptor selectivity) with atomoxetine had modest effects on upper airway function during sleep, which provide mechanistic insight into the role of noradrenergic and antimuscarinic agents on sleep and breathing and are important for pharmacotherapy development for OSA.
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Affiliation(s)
- Atqiya Aishah
- 1Neuroscience Research Australia, Faculty of Medicine,
University of New South Wales, Sydney, New South Wales, Australia
| | - Richard Lim
- 1Neuroscience Research Australia, Faculty of Medicine,
University of New South Wales, Sydney, New South Wales, Australia
| | - Scott A. Sands
- 2Division of Sleep Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Luigi Taranto-Montemurro
- 2Division of Sleep Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Andrew Wellman
- 2Division of Sleep Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jayne C. Carberry
- 1Neuroscience Research Australia, Faculty of Medicine,
University of New South Wales, Sydney, New South Wales, Australia,3Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute, Flinders University, Adelaide, South Australia, Australia
| | - Danny J. Eckert
- 1Neuroscience Research Australia, Faculty of Medicine,
University of New South Wales, Sydney, New South Wales, Australia,3Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute, Flinders University, Adelaide, South Australia, Australia
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Cortese R, Khalyfa A, Bao R, Gozal D. Gestational sleep apnea perturbations induce metabolic disorders by divergent epigenomic regulation. Epigenomics 2021; 13:751-765. [PMID: 33929266 DOI: 10.2217/epi-2020-0435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Late-gestational sleep fragmentation (LG-SF) and intermittent hypoxia (LG-IH), two hallmarks of obstructive sleep apnea, lead to metabolic dysfunction in the offspring. We investigated specific biological processes that are epigenetically regulated by LG-SF and LG-IH. Materials & methods: We analyzed DNA methylation profiles in offspring visceral white adipose tissues by MeDIP-chip followed by pathway analysis. Results: We detected 1187 differentially methylated loci (p < 0.01) between LG-SF and LG-IH. Epigenetically regulated genes in LG-SF offspring were associated with lipid and glucose metabolism, whereas those in LG-IH were related to inflammatory signaling and cell proliferation. Conclusion: While LG-SF and LG-IH will result in equivalent phenotypic alterations in offspring, each paradigm appears to operate through epigenetic regulation of different biological processes.
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Affiliation(s)
- Rene Cortese
- Department of Child Health, Child Health Research Institute, School of Medicine, University of Missouri, Columbia, MO 65212, USA
| | - Abdelnaby Khalyfa
- Department of Child Health, Child Health Research Institute, School of Medicine, University of Missouri, Columbia, MO 65212, USA
| | - Riyue Bao
- Hillman Cancer Center, UPMC, Pittsburgh, PA 15232, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - David Gozal
- Department of Child Health, Child Health Research Institute, School of Medicine, University of Missouri, Columbia, MO 65212, USA
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Tanayapong P, Kuna ST. Sleep disordered breathing as a cause and consequence of stroke: A review of pathophysiological and clinical relationships. Sleep Med Rev 2021; 59:101499. [PMID: 34020180 DOI: 10.1016/j.smrv.2021.101499] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/12/2021] [Accepted: 04/25/2021] [Indexed: 12/22/2022]
Abstract
Stroke is the leading cause of death and disability globally. Sleep disordered breathing (SDB), a potentially modifiable risk factor of stroke, is highly prevalent in stroke survivors. Evidence supports a causal, bidirectional relationship between SDB and stroke. SDB may increase the risk of stroke occurrence and recurrence, and worsen stroke outcome. While SDB is associated with an increased incidence of hypertension and cardiac arrhythmias, both of which are traditional stroke risk factors, SDB is also an independent risk factor for stroke. A number of characteristics of SDB may increase stroke risk, including intermittent hypoxemia, sympathetic activation, changes in cerebral autoregulation, oxidative stress, systemic inflammation, hypercoagulability, and endothelial dysfunction. On the other hand, stroke may also cause new SDB or aggravate preexisting SDB. Continuous positive airway pressure treatment of SDB may have a beneficial role in reducing stroke risk and improving neurological outcome after stroke. The treatment should be considered as early as possible, particularly when SDB is present post-stroke. The goal of this review is to highlight the strong link between SDB and stroke and to raise awareness for practitioners to consider the possibility of SDB being present in all stroke survivors.
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Affiliation(s)
- Pongsakorn Tanayapong
- Division of Neurology, Department of Medicine, Phramongkutklao Hospital, Bangkok, Thailand; Neurology Center, Vibhavadi Hospital, Bangkok, Thailand.
| | - Samuel T Kuna
- Department of Medicine, Corporal Michael J. Crescenz VA, Medical Center, Philadelphia, PA, United States; Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Schar MS, Omari TI, Woods CM, Ferris LF, Doeltgen SH, Lushington K, Kontos A, Athanasiadis T, Cock C, Chai Coetzer CL, Eckert DJ, Ooi EH. Altered swallowing biomechanics in people with moderate-severe obstructive sleep apnea. J Clin Sleep Med 2021; 17:1793-1803. [PMID: 33904392 DOI: 10.5664/jcsm.9286] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Dysphagia is a common but under-recognized complication of obstructive sleep apnea (OSA). However, the mechanisms remain poorly described. Accordingly, the aim of this study was to assess swallowing symptoms and use high-resolution pharyngeal manometry (HRPM) to quantify swallowing biomechanics in patients with moderate-severe OSA. METHODS Nineteen adults (4 female, mean age 46±26-68y) with moderate-severe OSA underwent HRPM testing with 5,10 & 20 ml volumes of thin and extremely thick liquids. Data were compared to 19 age- and sex-matched healthy controls (mean age 46±27-68y). Symptomatic dysphagia was assessed using the Sydney Swallow Questionnaire (SSQ). Swallow metrics were analyzed using the online application swallowgateway.com. General linear mixed model analysis was performed to investigate potential differences between people with moderate-severe OSA and controls. Data presented are means (95% CI). RESULTS 26% (5/19) of the OSA group but none of the controls reported symptomatic dysphagia (SSQ>234). Compared to healthy controls, the OSA group had increased upper esophageal sphincter (UES) relaxation pressure (-2 [-1] vs. 2 [1]mmHg, F = 32.1, p <0.0001), reduced UES opening (6 vs. 5mS, F = 23.6, p<0.0001) and increased hypopharyngeal intrabolus pressure (2 [1] vs 7 [1]mmHg, F= 19.0, p <0.05). Additionally, upper pharyngeal pressures were higher, particularly at the velopharynx (88 [12] vs. 144 [12]mmHg.cm.s, F = 69.6, p<0.0001). CONCLUSIONS HRPM identified altered swallowing biomechanics in people with moderate-severe OSA, which is consistent with a subclinical presentation. Potential contributing mechanisms include UES dysfunction with associated upstream changes of increased hypopharyngeal distension pressure and velopharyngeal contractility.
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Affiliation(s)
- Mistyka S Schar
- Department of Speech Pathology & Audiology, Flinders Medical Centre.,Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University
| | - Taher I Omari
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University
| | - Charmaine M Woods
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University.,Otolaryngology Head & Neck Surgery Unit, Flinders Medical Centre
| | - Lara F Ferris
- College of Nursing & Health Sciences, Caring Futures Institute, Flinders University
| | - Sebastian H Doeltgen
- College of Nursing & Health Sciences, Caring Futures Institute, Flinders University
| | - Kurt Lushington
- Psychology, Justice & Society Academic Unit, University of South Australia
| | - Anna Kontos
- Department of Respiratory and Sleep Medicine, Women's and Children's Hospital
| | - Theodore Athanasiadis
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University.,Otolaryngology Head & Neck Surgery Unit, Flinders Medical Centre
| | - Charles Cock
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University.,Department of Gastroenterology & Hepatology, Flinders Medical Centre
| | - Ching-Li Chai Coetzer
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University.,Respiratory & Sleep Services, Flinders Medical Centre
| | - Danny J Eckert
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University
| | - Eng H Ooi
- Flinders Health and Medical Research Institute, College of Medicine & Public Health, Flinders University.,Otolaryngology Head & Neck Surgery Unit, Flinders Medical Centre
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The Usefulness of Modified Mallampati Score and CT Upper Airway Volume Measurements in Diagnosing OSA among Patients with Breathing-Related Sleep Disorders. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11093764] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background: Obstructive sleep apnea (OSA) is a condition causing restriction of the airflow through the upper airways during sleep, despite preserved inspiratory muscle activity. This may lead to the development of secondary hypertension, ischemic heart disease, myocardial infarction, and arrhythmia. Moreover, the prevalence of OSA is on the rise. Methods: Comparison of scores from the Berlin Questionnaire, modified Mallampati scores (MMP), pulse oximetry readings and Upper Airway Volume (UAV) data obtained from CBCT (Cone Beam Computed Tomography). The study group of 129 patients of both sexes reporting sleep-related breathing problems completed the Berlin Questionnaire, had their oxygen saturation (SpO2) measured with a PO40 pulse oximeter, and oropharyngeal tissues assessed according to MMP. CBCT scans were put into 3D Amira TM 3D computer analysisto obtain UAV values. Results: Snoring was associated with significantly higher BMI compared to non-snoring patients. Furthermore, snoring patients had higher heart rate, modified Mallampati score, and lower UAV than the non-snoring group. The multifactorial analysis showed MMP as a useful indicator of the risk of snoring (OR = 7.468 (3863–14, 507, p < 0.001)). Conclusions: The composition of MMP together with UAV and the Berlin questionnaire might be reliable indicators to assess the risk of snoring.
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Shah FA, Moronta S, Braford M, Greene N. Obstructive Sleep Apnea and Pulmonary Hypertension: A Review of Literature. Cureus 2021; 13:e14575. [PMID: 34035997 PMCID: PMC8135661 DOI: 10.7759/cureus.14575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Obstructive sleep apnea (OSA) is a disease process involving recurrent pharyngeal collapse during sleep, resulting in apneic episodes. Clinically, symptoms can include snoring, sudden awakening with a choking-like sensation, excessive somnolence, non-restorative sleep, difficulty in starting or maintaining sleep, and fatigue. It results in impaired gas exchange, subsequently causing various cardiovascular, metabolic, and neurocognitive pathologies. Historically, OSA has been underdiagnosed and undertreated, especially in women. OSA is associated with WHO (World Health Organization) class III pulmonary hypertension (PH) or PH due to lung disease. PH is a concerning complication of OSA and thought to occur in roughly 20% of individuals with OSA. The pathogenesis of PH in OSA can include pulmonary artery vasoconstriction and remodeling. Patients suffering from OSA who develop PH tend to have worse cardiovascular and pulmonary changes. We present a thorough review of the literature examining the interplay between OSA and PH.
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Affiliation(s)
- Farhan A Shah
- Internal Medicine, Lewis Gale Medical Center, Salem, USA
| | - Shaidy Moronta
- Internal Medicine, Edward Via College of Osteopathic Medicine, Salem, USA
| | - Michalla Braford
- Internal Medicine, Edward Via College of Osteopathic Medicine, Salem, USA
| | - Nelson Greene
- Pulmonary and Critical Care, Lewis Gale Medical Center, Salem, USA
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Orr JE, Ayappa I, Eckert DJ, Feldman JL, Jackson CL, Javaheri S, Khayat RN, Martin JL, Mehra R, Naughton MT, Randerath WJ, Sands SA, Somers VK, Badr MS. Research Priorities for Patients with Heart Failure and Central Sleep Apnea. An Official American Thoracic Society Research Statement. Am J Respir Crit Care Med 2021; 203:e11-e24. [PMID: 33719931 PMCID: PMC7958519 DOI: 10.1164/rccm.202101-0190st] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: Central sleep apnea (CSA) is common among patients with heart failure and has been strongly linked to adverse outcomes. However, progress toward improving outcomes for such patients has been limited. The purpose of this official statement from the American Thoracic Society is to identify key areas to prioritize for future research regarding CSA in heart failure. Methods: An international multidisciplinary group with expertise in sleep medicine, pulmonary medicine, heart failure, clinical research, and health outcomes was convened. The group met at the American Thoracic Society 2019 International Conference to determine research priority areas. A statement summarizing the findings of the group was subsequently authored using input from all members. Results: The workgroup identified 11 specific research priorities in several key areas: 1) control of breathing and pathophysiology leading to CSA, 2) variability across individuals and over time, 3) techniques to examine CSA pathogenesis and outcomes, 4) impact of device and pharmacological treatment, and 5) implementing CSA treatment for all individuals Conclusions: Advancing care for patients with CSA in the context of heart failure will require progress in the arenas of translational (basic through clinical), epidemiological, and patient-centered outcome research. Given the increasing prevalence of heart failure and its associated substantial burden to individuals, society, and the healthcare system, targeted research to improve knowledge of CSA pathogenesis and treatment is a priority.
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Al-Qattan H, Al-Omairah H, Al-Hashash K, Al-Mutairi F, Al-Mutairat M, Al-Ajmi M, Mohammad A, Alterki A, Ziyab AH. Prevalence, Risk Factors, and Comorbidities of Obstructive Sleep Apnea Risk Among a Working Population in Kuwait: A Cross-Sectional Study. Front Neurol 2021; 12:620799. [PMID: 33889122 PMCID: PMC8056027 DOI: 10.3389/fneur.2021.620799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 03/10/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Obstructive sleep apnea (OSA) affects a considerable proportion of adults globally and is associated with elevated morbidity and mortality. Given the lack of epidemiologic data on the burden of OSA in Kuwait, this study sought to estimate its prevalence, associated risk factors, and comorbid conditions among a working population in Kuwait. Methods: This was a cross-sectional study of a sample of working adults (n = 651) from public institutions in Kuwait. High/low risk for OSA was ascertained according to the Berlin Questionnaire criteria. Participants self-reported their coexisting health conditions. Associations were assessed using Poisson regression with robust variance estimation; adjusted prevalence ratios (aPRs) and 95% confidence intervals (CIs) were estimated. Results: Overall, 20.0% (130/651) of participants were classified as being at high risk for OSA, with more male than female subjects being at high risk (24.0% [56/233] vs. 17.7% [74/418], P = 0.053), though this difference did not gain statistical significance. Moreover, a high risk for OSA was more common among older and obese subjects. Factors associated with increased prevalence of a high risk for OSA included current smoking status (aPR = 1.58, 95% CI: 1.02-2.06), longer hours spent watching television (1.76, 1.10-2.81), and lower self-perceived physical health (2.11, 1.15-3.87). However, decreasing trends in the prevalence of high risk for OSA were observed with frequent engagement in vigorous physical activity and longer nightly sleep duration. Compared to those at a low risk for OSA, the subjects at high risk for OSA were more likely to have insomnia disorder (2.83, 1.81-4.41), diabetes (1.94, 1.15-3.27), hypertension (3.00, 1.75-5.16), and depression (4.47, 1.80-11.08). Conclusion: This study estimated that 1/5 of working adults in Kuwait were at high risk for OSA, and the prevalence varied according to personal characteristics and lifestyle factors. Also, a high risk for OSA classification was associated with multiple comorbid health conditions.
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Affiliation(s)
- Husain Al-Qattan
- Department of Nuclear Medicine, Adan Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Hamad Al-Omairah
- Department of Ophthalmology, Al-Bahar Eye Center, Ministry of Health, Kuwait City, Kuwait
| | - Khaled Al-Hashash
- Department of Obstructive and Gynecology, Maternity Hospital, Ministry of Health, Kuwait City, Kuwait
| | - Fahad Al-Mutairi
- Department of Internal Medicine, Farwaniya Hospital, Ministry of Health, Kuwait City, Kuwait
| | | | - Mohammad Al-Ajmi
- Al-Shuhada Health Center, Ministry of Health, Kuwait City, Kuwait
| | - Anwar Mohammad
- Department of Biochemistry and Molecular Biology, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Abdulmohsen Alterki
- Department of Otolaryngology, Head, and Neck Surgery, Zain and Al-Sabah Hospitals, Ministry of Health, Kuwait City, Kuwait
- Medical Division, Dasman Diabetes Institute, Kuwait City, Kuwait
| | - Ali H. Ziyab
- Department of Community Medicine and Behavioral Sciences, Faculty of Medicine, Kuwait University, Kuwait City, Kuwait
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Koka V, De Vito A, Roisman G, Petitjean M, Filograna Pignatelli GR, Padovani D, Randerath W. Orofacial Myofunctional Therapy in Obstructive Sleep Apnea Syndrome: A Pathophysiological Perspective. ACTA ACUST UNITED AC 2021; 57:medicina57040323. [PMID: 33915707 PMCID: PMC8066493 DOI: 10.3390/medicina57040323] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 01/02/2023]
Abstract
Obstructive sleep apnea (OSA) syndrome is a multi-factorial disorder. Recently identified pathophysiological contributing factors include airway collapsibility, poor pharyngeal muscle responsiveness, a low arousal threshold, and a high loop gain. Understanding the pathophysiology is of pivotal importance to select the most effective treatment option. It is well documented that conventional treatments (continuous positive airway pressure (CPAP), upper airway surgery, and dental appliance) may not always be successful in the presence of non-anatomical traits, especially in mild to moderate OSA. Orofacial myofunctional therapy (OMT) consists of isotonic and isometric exercises targeted to oral and oropharyngeal structures, with the aim of increasing muscle tone, endurance, and coordinated movements of pharyngeal and peripharyngeal muscles. Recent studies have demonstrated the efficacy of OMT in reducing snoring, apnea-hypopnea index, and daytime sleepiness, and improving oxygen saturations and sleep quality. Myofunctional therapy helps to reposition the tongue, improve nasal breathing, and increase muscle tone in pediatric and adult OSA patients. Studies have shown that OMT prevents residual OSA in children after adenotonsillectomy and helps adherence in CPAP-treated OSA patients. Randomized multi-institutional studies will be necessary in the future to determine the effectiveness of OMT in a single or combined modality targeted approach in the treatment of OSA. In this narrative review, we present up-to-date literature data, focusing on the role of OSA pathophysiology concepts concerning pharyngeal anatomical collapsibility and muscle responsiveness, underlying the response to OMT in OSA patients.
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Affiliation(s)
- Venkata Koka
- Department of Sleep Medicine, Hospital Antoine Beclere, 92140 Clamart, France; (G.R.); (M.P.)
- Correspondence: (V.K.); (A.D.V.)
| | - Andrea De Vito
- Ear Nose Throat (ENT) Unit, Head & Neck Department, Santa Maria delle Croci Hospital, Romagna Health Service, 48121 Ravenna, Italy; (G.R.F.P.); (D.P.)
- Correspondence: (V.K.); (A.D.V.)
| | - Gabriel Roisman
- Department of Sleep Medicine, Hospital Antoine Beclere, 92140 Clamart, France; (G.R.); (M.P.)
| | - Michel Petitjean
- Department of Sleep Medicine, Hospital Antoine Beclere, 92140 Clamart, France; (G.R.); (M.P.)
| | - Giulio Romano Filograna Pignatelli
- Ear Nose Throat (ENT) Unit, Head & Neck Department, Santa Maria delle Croci Hospital, Romagna Health Service, 48121 Ravenna, Italy; (G.R.F.P.); (D.P.)
| | - Davide Padovani
- Ear Nose Throat (ENT) Unit, Head & Neck Department, Santa Maria delle Croci Hospital, Romagna Health Service, 48121 Ravenna, Italy; (G.R.F.P.); (D.P.)
| | - Winfried Randerath
- Clinic of Pneumology and Allergology, Center for Sleep Medicine and Respiratory Care, Institute for Pneumology at the University Witten/Herdecke, 42699 Solingen, Germany;
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Sweetman A, Melaku YA, Lack L, Reynolds A, Gill TK, Adams R, Appleton S. Prevalence and associations of co-morbid insomnia and sleep apnoea in an Australian population-based sample. Sleep Med 2021; 82:9-17. [PMID: 33873104 DOI: 10.1016/j.sleep.2021.03.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/17/2021] [Accepted: 03/22/2021] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Insomnia and obstructive sleep apnoea (OSA) are the two most prevalent sleep disorders, and frequently co-occur (COMISA) in sleep clinic samples. However, few studies have investigated the prevalence or associations of COMISA in the general population. METHODS We used population-based online survey data from 2044 Australian adults. The prevalence and associations of insomnia, OSA and COMISA were investigated according to symptom-level, and disorder-level definitions. Insomnia was defined according to chronic difficulties initiating and/or maintaining sleep (DIMS; symptom-level), and ICSD-3 chronic insomnia disorder (disorder-level). OSA was defined according to self-reported frequent obstructive events, snoring or doctor-diagnosed OSA (symptom-level), and doctor-diagnosed OSA (disorder-level). COMISA was defined if both conditions were met (for symptom-level, and disorder-level threshold). Associations with other conditions, and general health were investigated with Poisson regression analyses. RESULTS Chronic insomnia occurred more frequently among participants with doctor-diagnosed OSA (22.3%), compared to those without (14.3%, p = 0.010). Doctor-diagnosed OSA was more common among participants with chronic insomnia (10.2%) compared to those without (6.2%; p = 0.010). DIMS also occurred more frequently among participants with OSA symptoms (66.6%), compared to those without (47.2%; p < 0.001). Participants with symptom-level COMISA reported increased co-morbid conditions, and worse general health compared to participants with symptoms of insomnia-alone, OSA-alone, or neither insomnia/OSA. CONCLUSIONS COMISA at symptom and disorder level were common and associated with increased medical and psychiatric co-morbidity, as well as poor general health. More investigation is required to understand bi-directional associations underpinning the high co-morbidity, and improve diagnostic and treatment approaches for COMISA to reduce associated morbidity.
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Affiliation(s)
- Alexander Sweetman
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia; National Centre for Sleep Health Services Research: A NHMRC Centre of Research Excellence, Flinders University, Adelaide, SA, Australia.
| | - Yohannes Adama Melaku
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia
| | - Leon Lack
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia; College of Education, Psychology and Social Work, Flinders University, SA, 5042, Australia; National Centre for Sleep Health Services Research: A NHMRC Centre of Research Excellence, Flinders University, Adelaide, SA, Australia
| | - Amy Reynolds
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia; Appleton Institute, CQUniversity Australia, SA, 5034, Australia
| | - Tiffany K Gill
- Adelaide Medical School, The University of Adelaide, Adelaide, SA, 5000, Australia
| | - Robert Adams
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia; National Centre for Sleep Health Services Research: A NHMRC Centre of Research Excellence, Flinders University, Adelaide, SA, Australia
| | - Sarah Appleton
- The Adelaide Institute for Sleep Health, Flinders Health and Medical Research Institute: Sleep Health, College of Medicine and Public Health, Flinders University, SA, 5042, Australia
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Decreased expression of PPARγ is associated with aortic endothelial cell apoptosis in intermittently hypoxic rats. Sleep Breath 2021; 25:2241-2250. [PMID: 33751408 DOI: 10.1007/s11325-021-02319-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/03/2021] [Accepted: 02/08/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Increasing medical researche shows that endothelial dysfunction is one of the important causes of various cardiovascular diseases related to chronic intermittent hypoxia (CIH). This study aimed to identify target proteins in CIH-related vascular dysfunction. METHODS A comparative proteomics analysis was conducted in aortic samples of rats treated with CIH and controls with normoxia. Bioinformatics analyses were performed to determine the potential roles of major proteins. The expressions of target proteins were measured by western blotting. Cell apoptotic ratio was detected by flow cytometer. RESULTS A total of 3,593 proteins in aortic tissues of rats were quantified. Ninety-two upregulated proteins and 468 downregulated proteins were identified when the cutoff of fold change was set at 1.5 (CIH vs. normoxia). The results of bioinformatics analysis revealed that the differentially expressed proteins were enriched in the processes of energy metabolism and lipid metabolism. The reduced expression level of peroxisome proliferator-activated receptor γ (PPARγ) protein was identified in thoracic aortic tissues of rats with CIH by proteomics analysis and western blotting. In intermittent hypoxia-treated rat aortic endothelial cells, PPARγ protein levels were reduced, and the apoptosis rate and caspase-3 and Bax protein levels were markedly elevated. Importantly, forced expression of PPARγ by rosiglitazone in intermittent hypoxia-treated rat aortic endothelial cells not only attenuated caspase-3 and Bax protein levels but also reduced the rate of apoptosis. CONCLUSION PPARγ is critical in endothelial dysfunction of rats with CIH. Additional studies on these differentially expressed proteins associated with CIH-related endothelial dysfunction are necessary.
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Torres-Castro R, Vasconcello-Castillo L, Puppo H, Cabrera-Aguilera I, Otto-Yáñez M, Rosales-Fuentes J, Vilaró J. Effects of Exercise in Patients with Obstructive Sleep Apnoea. Clocks Sleep 2021; 3:227-235. [PMID: 33802403 PMCID: PMC7931110 DOI: 10.3390/clockssleep3010013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/21/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022] Open
Abstract
Obstructive sleep apnoea (OSA) constitutes a public health problem, with various systemic consequences that can increase cardiovascular morbidity and mortality as well as increase healthcare expenditure. This review discusses the rationale and effects of using general physical exercise, oropharyngeal exercises, and respiratory muscle training as an adjunctive treatment for patients with sleep apnoea. The recommended treatment for OSA is the use of continuous positive airway pressure, which is a therapy that prevents apnoea events by keeping the airways open. In the last decade, coadjuvant treatments that aim to support weight loss (including diet and physical exercise) and oropharyngeal exercises have been proposed to lower the apnoea/hypopnoea index among patients with OSA. Based on the available evidence, health professionals could decide to incorporate these therapeutic strategies to manage patients with sleep apnoea.
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Affiliation(s)
- Rodrigo Torres-Castro
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380453, Chile; (L.V.-C.); (H.P.); (J.R.-F.)
- Correspondence: ; Tel.: +56-229-786-513
| | - Luis Vasconcello-Castillo
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380453, Chile; (L.V.-C.); (H.P.); (J.R.-F.)
| | - Homero Puppo
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380453, Chile; (L.V.-C.); (H.P.); (J.R.-F.)
| | | | - Matías Otto-Yáñez
- Kinesiology School, Universidad Autónoma de Chile, Santiago 7500912, Chile;
| | - Javiera Rosales-Fuentes
- Department of Physical Therapy, Faculty of Medicine, University of Chile, Santiago 8380453, Chile; (L.V.-C.); (H.P.); (J.R.-F.)
| | - Jordi Vilaró
- Grupo de Investigación Global Research on Wellbeing (GRoW), Facultad de Ciencias de la Salud Blanquerna, Universitat Ramón Llull, 08025 Barcelona, Spain;
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Deng M, Huang YT, Xu JQ, Ke X, Dong YF, Cheng XS. Association Between Intermittent Hypoxia and Left Ventricular Remodeling in Patients With Obstructive Sleep Apnea-Hypopnea Syndrome. Front Physiol 2021; 11:608347. [PMID: 33643059 PMCID: PMC7907614 DOI: 10.3389/fphys.2020.608347] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 12/18/2020] [Indexed: 11/13/2022] Open
Abstract
The present study was undertaken to examine the association between intermittent hypoxia and left ventricular (LV) remodeling and explore which parameter of intermittent hypoxia is most relevant to LV remodeling in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). Two hundred eighty six patients underwent polysomnographic examination were enrolled. Based on apnea-hypoxia index (AHI), patients were divided into no, mild, moderate and severe OSAHS groups. Between-group differences in LV remodeling and the association between parameters of intermittent hypoxia and LV remodeling was evaluated. Patients with severe OSAHS were more likely to have hypertension, and higher values of LV mass (LVM) and LVM index (LVMI). In univariate regression analysis, male, body mass index (BMI), systolic and diastolic blood pressure (BP), statins, antihypertensive drugs, creatinine, and parameters of intermittent hypoxia (AHI, obstructive apnea index [OAI], lowest oxygen saturation [LSpO2], oxygen desaturation index [ODI], time spent below oxygen saturation of 90% [TS90%], and mean nocturnal oxygen saturation [MSpO2]) were associated with LVMI. After multivariate regression analyses, only male gender, BMI, systolic BP, creatinine, and ODI remained significantly associated with LVMI. Compared to those without LV hypertrophy (LVH), patients with LVH had higher ODI. Compared to patients with normal LV, concentric remodeling and eccentric LVH, those with concentric LVH had higher ODI. In conclusion, intermittent hypoxia was significantly associated with left ventricular remodeling; and among various parameters of intermittent hypoxia, ODI was the most relevant to LV remodeling.
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Affiliation(s)
- Ming Deng
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China.,Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yi-Teng Huang
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China
| | - Jian-Qing Xu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Huazhong University of Science and Technology Union Shenzhen Hospital, Shenzhen, China
| | - Xiao Ke
- Department of Cardiology, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, China
| | - Yi-Fei Dong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiao-Shu Cheng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
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Bolshakova SE, Madaeva IM, Berdina ON, Bugun OV, Rychkova LV. Ultrasound techniques in the diagnosis of vascular structural changes and blood flow velocity in patients with obstructive sleep apnea. КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2021. [DOI: 10.15829/1728-8800-2021-2645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- S. E. Bolshakova
- Scientific Center of Family Health Problems and Human Reproduction
| | - I. M. Madaeva
- Scientific Center of Family Health Problems and Human Reproduction
| | - O. N. Berdina
- Scientific Center of Family Health Problems and Human Reproduction
| | - O. V. Bugun
- Scientific Center of Family Health Problems and Human Reproduction
| | - L. V. Rychkova
- Scientific Center of Family Health Problems and Human Reproduction
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Jeon B, Luyster FS, Callan JA, Chasens ER. Depressive Symptoms in Comorbid Obstructive Sleep Apnea and Insomnia: An Integrative Review. West J Nurs Res 2021:193945921989656. [PMID: 33533324 PMCID: PMC8329133 DOI: 10.1177/0193945921989656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The purpose of this integrative review was to synthesize evidence concerning the relationship between comorbid obstructive sleep apnea and insomnia (OSA+I), and depressive symptoms. OSA and insomnia are common sleep disorders, recently comorbid OSA+I has been recognized as prevalent in adults. Although each sleep disorder increases the risk and severity of depressive symptoms, the effect of comorbid OSA+I on depressive symptoms remains unclear. A systematic search of PubMed, CINAHL, and PsycINFO identified 15 data-based studies. All the studies were observational with either a cross-sectional (n = 14) or a case-control design (n = 1). Study quality was assessed. Most of the studies (n = 14) indicated that comorbid OSA+I had an additive role on depressive symptoms. Insomnia appeared to have a more important role than OSA in increasing the severity of depressive symptoms in persons with comorbid OSA+I.
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Affiliation(s)
- Bomin Jeon
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA
| | - Faith S Luyster
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA
| | - Judith A Callan
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA
| | - Eileen R Chasens
- School of Nursing, University of Pittsburgh, Pittsburgh, PA, USA
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Endothelin-1 and LOX-1 as Markers of Endothelial Dysfunction in Obstructive Sleep Apnea Patients. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18031319. [PMID: 33535693 PMCID: PMC7908073 DOI: 10.3390/ijerph18031319] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 01/20/2021] [Accepted: 01/28/2021] [Indexed: 12/15/2022]
Abstract
INTRODUCTION The search of biochemical markers of endothelial dysfunction: lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1)-involved in atherosclerotic plaques formation-and endothelin-1 (ET-1)-potent vasoconstrictor-might help in detecting obstructive sleep apnea (OSA) patients at high risk of cardiovascular diseases. MATERIAL AND METHODS In 71 OSA patients (apnoea/hypopnoea index, AHI 28.2 ± 17.9/hour) and in 21 healthy controls the serum levels of LOX-1 and ET-1 were measured. RESULTS There were increased levels of ET-1 (1.58 ± 0.65 vs. 1.09 ± 0.38 pg/mL; p < 0.001) but not of LOX-1 in OSA patients as compared with healthy controls. In the patients' group ET-1 levels negatively correlated with serum LDL levels. LOX-1 levels positively correlated with fasting glucose levels and were higher in the patients with than without diabetes. Neither ET-1 nor LOX-1 correlated with OSA severity. In mild OSA patients, there was a negative correlation between LOX-1 and mean arterial oxygen saturation during sleep. In severe OSA patients, there was a positive correlation between LOX-1 levels and uric acid. CONCLUSION There is endothelial dysfunction in OSA patients as indicated by increased serum levels of ET-1 and possibly endothelial dysfunction in diabetic OSA patients as indicated by increased serum levels of LOX-1 and its correlation with fasting glucose levels.
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McKeown P, O’Connor-Reina C, Plaza G. Breathing Re-Education and Phenotypes of Sleep Apnea: A Review. J Clin Med 2021; 10:jcm10030471. [PMID: 33530621 PMCID: PMC7865730 DOI: 10.3390/jcm10030471] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 12/13/2022] Open
Abstract
Four phenotypes of obstructive sleep apnea hypopnea syndrome (OSAHS) have been identified. Only one of these is anatomical. As such, anatomically based treatments for OSAHS may not fully resolve the condition. Equally, compliance and uptake of gold-standard treatments is inadequate. This has led to interest in novel therapies that provide the basis for personalized treatment protocols. This review examines each of the four phenotypes of OSAHS and explores how these could be targeted using breathing re-education from three dimensions of functional breathing: biochemical, biomechanical and resonant frequency. Breathing re-education and myofunctional therapy may be helpful for patients across all four phenotypes of OSAHS. More research is urgently needed to investigate the therapeutic benefits of restoring nasal breathing and functional breathing patterns across all three dimensions in order to provide a treatment approach that is tailored to the individual patient.
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Affiliation(s)
- Patrick McKeown
- Buteyko Clinic International, Loughwell, Moycullen, Co., H91 H4C1 Galway, Ireland;
| | - Carlos O’Connor-Reina
- Otorhinolaryngology Department, Hospital Quironsalud Marbella, 29603 Marbella, Spain;
- Otorhinolaryngology Department, Hospital Quironsalud Campo de Gibraltar, 11379 Palmones, Spain
| | - Guillermo Plaza
- Otorhinolaryngology Department, Hospital Universitario de Fuenlabrada, Universidad Rey Juan Carlos, 28042 Madrid, Spain
- Otorhinolaryngology Department, Hospital Sanitas la Zarzuela, 28023 Madrid, Spain
- Correspondence:
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de Barros Phys JL, Rodrigues WC, Marão AC, de Oliveira Antunes LC, Trindade SHK, Weber SAT. Impact of CPAP treatment for a short period in moderate-to-severe OSAS patients: a randomized double-blind clinical trial. Braz J Otorhinolaryngol 2021; 88:917-924. [PMID: 33563569 DOI: 10.1016/j.bjorl.2020.12.011] [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] [Received: 08/28/2020] [Revised: 10/06/2020] [Accepted: 12/15/2020] [Indexed: 11/02/2022] Open
Abstract
INTRODUCTION Obesity is the most frequent reversible aggravating factor of obstructive sleep apnea syndrome, OSAS, with physical activity very important for its control. Continuous positive air pressure during sleep is the "gold standard" treatment for OSAS. OBJECTIVE we aimed to investigate if the use of CPAP for a short period (7 days), would improve sleep quality, daytime sleepiness, and the disposition for physical activity. METHODS Eighty OSAS patients were randomly assigned as follows: group I - CPAP with a steady pressure of 4 cm H2O; group II - ideal therapeutic pressure. After filling out the questionnaires related to the studied variables (International physical activity questionnaire long-form, Epworth sleepiness scale, Pittsburgh sleep quality index), patients underwent a baseline pulmonary function test and CPAP titration. After CPAP therapy for 4≥ hours a night for 7 consecutive days, patients returned and filled out new (International physical activity questionnaire long-form, Epworth sleepiness scale, Pittsburgh sleep quality index) forms. New spirometry was carried out. RESULTS 39 patients completed the study. The mean age was 52 ± 11 years old and 28 patients (71.79%) were obese. Both groups were similar for all variables studied at baseline. After CPAP use, patients of group II presented more significant improvements (p < 0.05) for sleep quality and diurnal sleepiness. Time spent with physical activities did not change. Spirometric data were at normal range at baseline. Solely the variable FEF 25%-75% was significantly enhanced (p < 0.05) in group II. CONCLUSION CPAP therapy for 1 week, with ideal pressure, improves daytime sleepiness and sleep quality, enhances pulmonary function, but does not change the mean time spent with physical activities.
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Affiliation(s)
| | - Willian Caetano Rodrigues
- Universidade Estadual Paulista (UNESP), Faculdade de Medicina, Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Botucatu, SP, Brazil.
| | - Antônio Carlos Marão
- Universidade Estadual Paulista (UNESP), Faculdade de Medicina, Botucatu, SP, Brazil
| | | | | | - Silke Anna Theresa Weber
- Universidade Estadual Paulista (UNESP), Faculdade de Medicina, Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Divisão de Otorrinolaringologia, Botucatu, SP, Brazil
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Tan SN, Abdullah B. Phenotypes of Obstructive Sleep Apnea and Direct Targeted Therapy: A Literature Review. CURRENT RESPIRATORY MEDICINE REVIEWS 2021. [DOI: 10.2174/1573398x16999201016095352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Obstructive sleep apnea (OSA) is a heterogenous chronic disorder causing hypoxemia,
excessive daytime sleepiness, non-refreshing sleep, nocturia, morning headache, irritability, and
memory loss. Cardiovascular disease, cognitive impairment, metabolic disorders, and depression
are its long-term consequences. The difficulty in treating patients is due to poor compliance, failure
to obtain the desired outcome, and complication arising from the multimodality treatment. Direct
targeted therapy may overcome these issues. Identification of its phenotypes improves understanding
of the disease mechanism, the risk for adverse effects, and predicting response to targeted therapy.
Phenotyping of OSA allows treating patients according to their inherent disease and not based
on a “one size fits all” method, which may not be applicable for all patients. This approach may improve
patients’ compliance with treatment, minimize the associated morbidities, and consequently
improve their quality of life.
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Affiliation(s)
- Shi Nee Tan
- Department of Otorhinolaryngology Head & Neck Surgery, Hospital Tawau, Sabah, Malaysia
| | - Baharudin Abdullah
- Department of Otorhinolaryngology-Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kubang Kerian, Kelantan, Malaysia
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Erridge S, Moussa O, McIntyre C, Hariri A, Tolley N, Kotecha B, Purkayastha S. Obstructive Sleep Apnea in Obese Patients: a UK Population Analysis. Obes Surg 2021; 31:1986-1993. [PMID: 33423181 PMCID: PMC8041687 DOI: 10.1007/s11695-020-05196-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/25/2020] [Accepted: 12/29/2020] [Indexed: 11/29/2022]
Abstract
Background Obstructive sleep apnea (OSA) is an increasingly common disorder associated with increased cardiovascular disease, mortality, reduced productivity, and an increased risk of road traffic accidents. A significant proportion of patients with OSA in the UK are undiagnosed. This study aims to identify risk factors for OSA in an obese cohort. Method A population-based study was conducted of obese patients (BMI ≥ 30 kg/m2) from the Clinical Practice Research Datalink (CPRD). A logistic regression model was used to calculate odds ratios (ORs) for developing OSA according to other clinicopathological characteristics. Multivariate analysis was conducted of individual factors that affect the propensity to develop OSA. Statistical significance was defined as p < 0.050. Results From 276,600 obese patients identified during a data extraction of the CPRD in July 2017, the prevalence of OSA was 5.4%. The following risk factors were found to be independently associated with increased likelihood of OSA: male sex (OR = 3.273; p < 0.001), BMI class II (OR = 1.640; p < 0.001), BMI class III (OR = 3.768; p < 0.001), smoking (OR = 1.179; p < 0.001), COPD (OR = 1.722; p < 0.001), GERD (OR = 1.557; p < 0.001), hypothyroidism (OR = 1.311; p < 0.001), acromegaly (OR = 3.543; p < 0.001), and benzodiazepine use (OR = 1.492; p < 0.001). Bariatric surgery was associated with reduced risk of OSA amongst this obese population (OR = 0.260; p < 0.001). Conclusions In obese patients, there are numerous comorbidities that are associated with increased likelihood of OSA. These factors can help prompt clinicians to identify undiagnosed OSA. Bariatric surgery appears to be protective against developing OSA.
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Affiliation(s)
- S Erridge
- Division of Surgery, Department of Surgery & Cancer, Imperial College London, Academic Surgical Unit, 10th Floor QEQM, St Mary's Hospital, South Wharf Road, London, W2 1NY, UK.
| | - O Moussa
- Division of Surgery, Department of Surgery & Cancer, Imperial College London, Academic Surgical Unit, 10th Floor QEQM, St Mary's Hospital, South Wharf Road, London, W2 1NY, UK
| | - C McIntyre
- Division of Surgery, Department of Surgery & Cancer, Imperial College London, Academic Surgical Unit, 10th Floor QEQM, St Mary's Hospital, South Wharf Road, London, W2 1NY, UK
| | - A Hariri
- Department of Otolaryngology, Head and Neck Surgery, Imperial College Healthcare NHS Trust, London, W2 1NY, UK
| | - N Tolley
- Department of Otolaryngology, Head and Neck Surgery, Imperial College Healthcare NHS Trust, London, W2 1NY, UK
| | - B Kotecha
- Department of Otolaryngology, Head and Neck Surgery, Royal National Throat, Nose and Ear Hospital, Gray's Inn Road, London, WC1X 8DA, UK
| | - S Purkayastha
- Division of Surgery, Department of Surgery & Cancer, Imperial College London, Academic Surgical Unit, 10th Floor QEQM, St Mary's Hospital, South Wharf Road, London, W2 1NY, UK
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Elgart M, Redline S, Sofer T. Machine and Deep Learning in Molecular and Genetic Aspects of Sleep Research. Neurotherapeutics 2021; 18:228-243. [PMID: 33829409 PMCID: PMC8116376 DOI: 10.1007/s13311-021-01014-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 12/11/2022] Open
Abstract
Epidemiological sleep research strives to identify the interactions and causal mechanisms by which sleep affects human health, and to design intervention strategies for improving sleep throughout the lifespan. These goals can be advanced by further focusing on the environmental and genetic etiology of sleep disorders, and by development of risk stratification algorithms, to identify people who are at risk or are affected by, sleep disorders. These studies rely on comprehensive sleep-related data which often contains complex multi-dimensional physiological and molecular measurements across multiple timepoints. Thus, sleep research is well-suited for the application of computational approaches that can handle high-dimensional data. Here, we survey recent advances in machine and deep learning together with the availability of large human cohort studies with sleep data that can jointly drive the next breakthroughs in the sleep-research field. We describe sleep-related data types and datasets, and present some of the tasks in the field that can be targets for algorithmic approaches, as well as the challenges and opportunities in pursuing them.
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Affiliation(s)
- Michael Elgart
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
| | - Susan Redline
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
| | - Tamar Sofer
- Division of Sleep and Circadian Disorders, Brigham and Women’s Hospital, Boston, MA USA
- Department of Medicine, Harvard Medical School, Boston, MA USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA USA
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Neruntarat C, Khuancharee K, Saengthong P. Barbed Reposition Pharyngoplasty versus Expansion Sphincter Pharyngoplasty: A Meta-Analysis. Laryngoscope 2020; 131:1420-1428. [PMID: 33368308 DOI: 10.1002/lary.29357] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE This study was to compare barbed reposition pharyngoplasty (BRP) and expansion sphincter pharyngoplasty (ESP) in the treatment of obstructive sleep apnea (OSA). METHODS Relevant 907 articles were searched from various databases until August 2020, including PubMed, MEDLINE, EMBASE, Cochrane Library, Web of Science and Scopus, and reference lists. RESULTS Four studies with a total of 208 participants were included. The mean reduction of apnea-hypopnea index (AHI) in the BRP group was 74.03% and the mean reduction of AHI in the ESP group was 60.17%. The mean success rate in the BRP group and the ESP group was 84.96% and 79.87%, respectively. The mean difference (MD) of the change in AHI between groups was not significantly different (MD = -1.24 event/hr, 95% CI [-11.86, 9.36], P = .82). There was no significant difference in postoperative AHI, postoperative Epworth Sleepiness Scale, pain, hospital stay, time to oral diet, and the change in oxygen desaturation index in both groups whereas the analgesic requirement was lower in the BRP group. Operative time was lower in the BRP group (MD = 21.72 minutes, 95% CI [18.85, 24.60], P < .0001). CONCLUSION The outcomes in both procedures are comparable in the improvement of OSA with palatal collapse. BRP is superior to ESP in term of surgical time. However, randomized clinical controlled trials with multicenter cooperation and long-term follow-up are essential to further demonstrate the efficacy of these procedures. Laryngoscope, 131:1420-1428, 2021.
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Affiliation(s)
- Chairat Neruntarat
- Department of Otolaryngology, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Kitsarawut Khuancharee
- Department of Preventive and Social Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Petcharat Saengthong
- Department of Otorhinolaryngology Head and Neck Surgery, Police General Hospital, Bangkok, Thailand
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Gaspar LS, Sousa C, Álvaro AR, Cavadas C, Mendes AF. Common risk factors and therapeutic targets in obstructive sleep apnea and osteoarthritis: An unexpectable link? Pharmacol Res 2020; 164:105369. [PMID: 33352231 DOI: 10.1016/j.phrs.2020.105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/11/2020] [Accepted: 12/09/2020] [Indexed: 10/22/2022]
Abstract
Osteoarthritis (OA) and Obstructive Sleep Apnea (OSA) are two highly prevalent chronic diseases for which effective therapies are urgently needed. Recent epidemiologic studies, although scarce, suggest that the concomitant occurrence of OA and OSA is associated with more severe manifestations of both diseases. Moreover, OA and OSA share risk factors, such as aging and metabolic disturbances, and co-morbidities, including cardiovascular and metabolic diseases, sleep deprivation and depression. Whether this coincidental occurrence is fortuitous or involves cause-effect relationships is unknown. This review aims at collating and integrating present knowledge on both diseases by providing a brief overview of their epidemiology and pathophysiology, analyzing current evidences relating OA and OSA and discussing potential common mechanisms by which they can aggravate each other. Such mechanisms constitute potential therapeutic targets whose pharmacological modulation may provide more efficient ways of reducing the consequences of OA and OSA and, thus, lessen the huge individual and social burden that they impose.
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Affiliation(s)
- Laetitia S Gaspar
- Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal; PhD Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Cátia Sousa
- Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Ana Rita Álvaro
- Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Cláudia Cavadas
- Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.
| | - Alexandrina Ferreira Mendes
- Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal.
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Araújo MV, Norton A. Cognitive Impairment and Depressive Symptoms in a Patient With Obstructive Sleep Apnea: Full Recovery After CPAP Treatment. Cureus 2020; 12:e12152. [PMID: 33489564 PMCID: PMC7813525 DOI: 10.7759/cureus.12152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2020] [Indexed: 11/05/2022] Open
Abstract
Obstructive sleep apnea syndrome (OSA) is associated with neuropsychiatric symptoms, including cognitive impairment and depression. It is important to be aware of this association since these comorbid symptoms may be misdiagnosed as a primary psychiatric condition. We report a case of a 60-year-old man with depressive symptoms and cognitive impairment, with important deficits in memory and great functional impairment. There was no response to many antidepressant trials and, later, he underwent polysomnography and was diagnosed with severe OSA. The patient started treatment with continuous positive airway pressure (CPAP) and showed progressive improvement in depressive and cognitive symptoms. During one year of follow-up, there was no recurrence of psychiatric symptoms and the patient was able to stop antidepressants and to recover his functionality. This case highlights the importance of searching for OSA signals when assessing patients with depressive and cognitive symptoms, since they may improve with OSA adequate treatment.
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Diligent and disagreeable? The influence of personality on continuous positive airway pressure (CPAP) adherence for obstructive sleep apnea. Heliyon 2020; 6:e05594. [PMID: 33305033 PMCID: PMC7708936 DOI: 10.1016/j.heliyon.2020.e05594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/08/2020] [Accepted: 11/20/2020] [Indexed: 11/22/2022] Open
Abstract
CPAP is an effective treatment for obstructive sleep apnea (OSA), though low adherence rates limit its benefits. Previous research has linked personality to a range of health behaviours including CPAP adherence. In keeping with these findings it was hypothesised that CPAP adherence would be positively correlated with conscientiousness and negatively correlated with emotionality. The present study also tested for an interaction between conscientiousness and emotionality as well as investigating the relationship between personality facets and adherence. Participants were 110 adults, diagnosed with OSA. After approximately one month's treatment, average nightly usage for the previous week was downloaded from the CPAP device. Participants also completed the HEXACO Personality Inventory – revised. Contrary to expectation, there was no significant relationship between CPAP adherence and conscientiousness or emotionality and no significant interaction. However, the diligence facet of conscientiousness showed a significant positive correlation with CPAP adherence (r = .23, p < .05). Unanticipated negative correlations were also found between CPAP adherence and agreeableness and two of its facets: gentleness (r = –.33, p < .01) and patience (r = –.22, p < .05). The results provide support for an association between CPAP adherence and personality. It is recommended that future research focus on facet level measurement, in particular the personality facets associated with conscientiousness and agreeableness.
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Elfil M, Bahbah EI, Attia MM, Eldokmak M, Koo BB. Impact of Obstructive Sleep Apnea on Cognitive and Motor Functions in Parkinson's Disease. Mov Disord 2020; 36:570-580. [PMID: 33296545 DOI: 10.1002/mds.28412] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/29/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Parkinson's disease (PD) is a chronic neurodegenerative disorder that presents with motor and non-motor manifestations. Amongst the non-motor features, various forms of sleep disturbances can occur, and obstructive sleep apnea (OSA) is considered to be a common comorbidity. We conducted this systematic review and meta-analysis to assess the impact of OSA on cognitive and motor functions in PD. METHODS The information sources of for this systematic review and meta-analysis were PubMed, SCOPUS, Web of Science, and ScienceDirect. Studies meeting the following criteria were included: (1) studies including idiopathic PD patients, (2) studies using polysomnography to categorize PD patients into PD with OSA and PD without OSA, and (3) studies with observational designs (case-control, cohort, or cross-sectional). Data analysis was performed using RevMan. RESULTS Our meta-analysis showed that OSA was associated with significantly lower scores of Montreal Cognitive Assessments (MoCA) (mean difference (MD) = -0.70, 95% confidence interval (CI) [-1.28, -0.13], P = 0.01) and Mini-Mental State Examination (MMSE) (MD = -0.69, 95% CI [-1.17, -0.21], P = 0.005). Moreover, the score of the motor part of the Unified Parkinson's Disease Rating Scale (UPDRS III) was significantly higher in PD patients with OSA as compared with those without OSA (MD = 1.63, 95% CI [0.03, 3.23], P = 0.049). CONCLUSIONS OSA is associated with increased severity of PD-associated cognitive dysfunction and motor symptoms. However, further studies are needed to corroborate these findings, assess the underlying mechanisms by which OSA influences the motor and cognitive functions in PD, and investigate whether OSA can accelerate the neurodegenerative process of PD. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Mohamed Elfil
- Department of Neurological Sciences, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Eshak I Bahbah
- Faculty of Medicine, Al-Azhar University, Damietta, Egypt
| | | | - Mohamed Eldokmak
- Department of Neurology, SUNY Downstate Health Sciences University, Brooklyn, New York, USA
| | - Brian B Koo
- Department of Neurology, Yale University, New Haven, Connecticut, USA.,Center for Neuroepidemiology and Clinical Neurologic Research, New Haven, Connecticut, USA.,Department of Neurology, Connecticut Veterans Affairs Healthcare System, West Haven, Connecticut, USA
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146
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Xi J, Wang J, Si XA, Zheng S, Donepudi R, Dong H. Extracting signature responses from respiratory flows: Low-dimensional analyses on Direct Numerical Simulation-predicted wakes of a flapping uvula. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2020; 36:e3406. [PMID: 33070467 DOI: 10.1002/cnm.3406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/05/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Uvula-induced snoring and associated obstructive sleep apnea is a complex phenomenon characterized by vibrating structures and highly transient vortex dynamics. This study aimed to extract signature features of uvula wake flows of different pathological origins and develop a linear reduced-order surrogate model for flow control. Six airway models were developed with two uvula kinematics and three pharynx constriction levels. A direct numerical simulation (DNS) flow solver based on the immersed boundary method was utilized to resolve the wake flows induced by the flapping uvula. Key spatial and temporal responses of the flow to uvula kinematics and pharynx constriction were investigated using continuous wavelet transform (CWT), proper orthogonal decomposition (POD), and dynamic mode decomposition (DMD). Results showed highly complex patterns in flow topologies. CWT analysis revealed multiscale correlations in both time and space between the flapping uvular and wake flows. POD analysis successfully separated the flows among the six models by projecting the datasets in the vector space spanned by the first three eigenmodes. Perceivable differences were also captured in the time evolution of the DMD modes among the six models. A linear reduced-order surrogate model was constructed from the predominant eigenmodes obtained from the DMD analysis and predicted vortex patterns from this surrogate model agreed well with the corresponding DNS simulations. The computational and analytical platform presented in this study could bring a variety of applications in breathing-related disorders and beyond. The computational efficiency of surrogate modeling makes it well suited for flow control, forecasting, and uncertainty analyses.
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Affiliation(s)
- Jinxiang Xi
- Department of Biomedical Engineering, University of Massachusetts, Lowell, Massachusetts, USA
| | - Junshi Wang
- Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia, USA
| | - Xiuhua April Si
- Department of Aerospace, Industrial, and Mechanical Engineering, California Baptist University, Riverside, California, USA
| | - Shaokuan Zheng
- Department of Radiology, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Ramesh Donepudi
- Sleep and Neurodiagnostic Center, Lowell General Hospital, Lowell, Massachusetts, USA
| | - Haibo Dong
- Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia, USA
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Cuadrado GR, Álvarez RF, Huertas JH, Lopez MJV, Urrutia MI, Clara PC. Measurement of upper airway resistances: A simple way to assess its collapsibility? Sleep Breath 2020; 24:1531-1535. [DOI: 10.1007/s11325-020-02026-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 01/25/2020] [Accepted: 01/30/2020] [Indexed: 10/24/2022]
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De Meyer MMD, Vanderveken OM, De Weerdt S, Marks LAM, Cárcamo BA, Chavez AM, Matamoros FA, Jacquet W. Use of mandibular advancement devices for the treatment of primary snoring with or without obstructive sleep apnea (OSA): A systematic review. Sleep Med Rev 2020; 56:101407. [PMID: 33326914 DOI: 10.1016/j.smrv.2020.101407] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/17/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023]
Abstract
The aim of this review was to systematically evaluate the available scientific evidence on the benefit of mandibular advancement devices (MADs) in the treatment of primary snoring (PS). From 905 initially identified articles, 18 were selected. Papers that provided indirect information regarding obstructive sleep apnea syndrome (OSAS) and/or sleep breathing disorders (SBD) were included. Information was obtained on monoblock and duoblock appliances from the selected studies. The devices were most commonly able to achieve 50%-70% of the maximum mandibular protrusion. The frequently used outcome measurements were the apnea-hypopnea index, Epworth sleepiness scale, and oxygen desaturation index, which all yielded positive post-treatment results. The most common side effects were temporomandibular joint pain and excessive salivation, which improved with time. Our findings indicated that the use of MADs, even with varying designs, improved outcomes in all the reported patient populations (PS, OSAS, and SBD). Despite the lack of studies on PS, the available evidence supports the use of MADs for treatment of PS. Snoring should be treated from a preventive and psychosocial perspective to avoid progression to more severe diseases that could have a significant medical and economic impact.
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Affiliation(s)
- Micheline M D De Meyer
- Oral Health in Special Needs, Sleep Breathing Disorders, Oral Health Sciences, Ghent University Hospital, Gent, Belgium; Department of Dentistry, Radboud University Medical Center and Radboud Institute for Health Sciences, Nijmegen, the Netherlands; Department of Pneumology, UZ Brussels, Brussels, Belgium; Faculty of Dentistry, University of Concepción, Concepción, Chile; Department of Educational Sciences EDWE-LOCI, Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, Brussels, Belgium; Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Belgium.
| | - Olivier M Vanderveken
- Department of Ear, Nose, and Throat, Head and Neck Surgery, Antwerp University Hospital, Edegem, Belgium; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | | | - Luc A M Marks
- Special Care in Dentistry, Oral Health Sciences, Ghent University Hospital, Gent, Belgium
| | | | - Andrés M Chavez
- Faculty of Dentistry, University of Concepción, Concepción, Chile
| | | | - Wolfgang Jacquet
- Special Care in Dentistry, Oral Health Sciences, Ghent University Hospital, Gent, Belgium; Department of Oral Health Sciences ORHE, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium; Department of Educational Sciences EDWE-LOCI, Faculty of Psychology and Educational Sciences, Vrije Universiteit Brussel, Brussels, Belgium; Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Ghent University, Belgium
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Markun LC, Sampat A. Clinician-Focused Overview and Developments in Polysomnography. CURRENT SLEEP MEDICINE REPORTS 2020; 6:309-321. [PMID: 33251088 PMCID: PMC7683038 DOI: 10.1007/s40675-020-00197-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 12/13/2022]
Abstract
Purpose of Review Polysomnography (PSG) represents a fundamental diagnostic tool used in the evaluation of sleep disorders. It represents a simultaneous recording of sleep staging, eye movements, electromyographic tone, respiratory parameters, and electrocardiogram. It is particularly helpful in the assessment of sleep-disordered breathing and its management, propensity for excessive sleepiness, complex behaviors during sleep, including motor disturbances of sleep, sleep-related epilepsy, and parasomnias. This review is intended to summarize the indications for PSG, the limitations and challenges of this diagnostic tool, indications for home sleep apnea testing options, and new developments and trends in polysomnography. Recent Findings The polysomnogram is fundamentally important in the evaluation of sleep-disordered breathing in the setting of cardiovascular comorbidities and neurologic conditions such as neuromuscular disease, stroke, and epilepsy and in the evaluation of dream enactment behavior in the setting of REM sleep behavior disorder (RBD). Because RBD is predictive of neurodegenerative disorders, recent data highlights the importance of PSG in corroborating the diagnosis of RBD and identifying people who may be at risk. However, due to cost as well as limitations in access to care, further testing has been developed and implemented including the home sleep apnea test (HSAT). The evolution of consumer wearable devices has also been a growing trend in sleep medicine; however, few have received appropriate validation. Summary PSG has been used in both the clinical and research settings and remains the gold standard clinical diagnostic test for suspected obstructive sleep apnea (OSA) or central sleep apnea (CSA). Clinicians must be familiar with the basic indications for a PSG but also recognize when it is absolutely required. At this time, the PSG is essential in the evaluation of nocturnal hypoventilation disorders of sleep, periodic limb movements of sleep, and central nervous system hypersomnia (in the absence of CSF hypocretin) when combined with the multiple sleep latency test (MSLT) and is probably the only way to help differentiate among complex behaviors during sleep, especially in the setting of RBD. The capacity to establish an early diagnostic risk of potential dementia would be of critical importance once neuroprotective agents become available.
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Affiliation(s)
- Leslie C. Markun
- Division of Sleep Medicine, UC Davis Department of Neurology, 4860 Y Street, Suite 3700, Sacramento, CA 95817 USA
| | - Ajay Sampat
- Division of Sleep Medicine, UC Davis Department of Neurology, 4860 Y Street, Suite 3700, Sacramento, CA 95817 USA
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Rueda JR, Mugueta-Aguinaga I, Vilaró J, Rueda-Etxebarria M. Myofunctional therapy (oropharyngeal exercises) for obstructive sleep apnoea. Cochrane Database Syst Rev 2020; 11:CD013449. [PMID: 33141943 PMCID: PMC8094400 DOI: 10.1002/14651858.cd013449.pub2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Obstructive sleep apnoea (OSA) is a syndrome characterised by episodes of apnoea (complete cessation of breathing) or hypopnoea (insufficient breathing) during sleep. Classical symptoms of the disease - such as snoring, unsatisfactory rest and daytime sleepiness - are experienced mainly by men; women report more unspecific symptoms such as low energy or fatigue, tiredness, initial insomnia and morning headaches. OSA is associated with an increased risk of occupational injuries, metabolic diseases, cardiovascular diseases, mortality, and being involved in traffic accidents. Continuous positive airway pressure (CPAP) - delivered by a machine which uses a hose and mask or nosepiece to deliver constant and steady air pressure- is considered the first treatment option for most people with OSA. However, adherence to treatment is often suboptimal. Myofunctional therapy could be an alternative for many patients. Myofunctional therapy consists of combinations of oropharyngeal exercises - i.e. mouth and throat exercises. These combinations typically include both isotonic and isometric exercises involving several muscles and areas of the mouth, pharynx and upper respiratory tract, to work on functions such as speaking, breathing, blowing, sucking, chewing and swallowing. OBJECTIVES To evaluate the benefits and harms of myofunctional therapy (oropharyngeal exercises) for the treatment of obstructive sleep apnoea. SEARCH METHODS We identified randomised controlled trials (RCTs) from the Cochrane Airways Trials Register (date of last search 1 May 2020). We found other trials at web-based clinical trials registers. SELECTION CRITERIA We included RCTs that recruited adults and children with a diagnosis of OSA. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. We assessed our confidence in the evidence by using GRADE recommendations. Primary outcomes were daytime sleepiness, morbidity and mortality. MAIN RESULTS We found nine studies eligible for inclusion in this review and nine ongoing studies. The nine included RCTs analysed a total of 347 participants, 69 of them women and 13 children. The adults' mean ages ranged from 46 to 51, daytime sleepiness scores from eight to 14, and severity of the condition from mild to severe OSA. The studies' duration ranged from two to four months. None of the studies assessed accidents, cardiovascular diseases or mortality outcomes. We sought data about adverse events, but none of the included studies reported these. In adults, compared to sham therapy, myofunctional therapy: probably reduces daytime sleepiness (Epworth Sleepiness Scale (ESS), MD (mean difference) -4.52 points, 95% Confidence Interval (CI) -6.67 to -2.36; two studies, 82 participants; moderate-certainty evidence); may increase sleep quality (MD -3.90 points, 95% CI -6.31 to -1.49; one study, 31 participants; low-certainty evidence); may result in a large reduction in Apnoea-Hypopnoea Index (AHI, MD -13.20 points, 95% CI -18.48 to -7.93; two studies, 82 participants; low-certainty evidence); may have little to no effect in reduction of snoring frequency but the evidence is very uncertain (Standardised Mean Difference (SMD) -0.53 points, 95% CI -1.03 to -0.03; two studies, 67 participants; very low-certainty evidence); and probably reduces subjective snoring intensity slightly (MD -1.9 points, 95% CI -3.69 to -0.11 one study, 51 participants; moderate-certainty evidence). Compared to waiting list, myofunctional therapy may: reduce daytime sleepiness (ESS, change from baseline MD -3.00 points, 95% CI -5.47 to -0.53; one study, 25 participants; low-certainty evidence); result in little to no difference in sleep quality (MD -0.70 points, 95% CI -2.01 to 0.61; one study, 25 participants; low-certainty evidence); and reduce AHI (MD -6.20 points, 95% CI -11.94 to -0.46; one study, 25 participants; low-certainty evidence). Compared to CPAP, myofunctional therapy may result in little to no difference in daytime sleepiness (MD 0.30 points, 95% CI -1.65 to 2.25; one study, 54 participants; low-certainty evidence); and may increase AHI (MD 9.60 points, 95% CI 2.46 to 16.74; one study, 54 participants; low-certainty evidence). Compared to CPAP plus myofunctional therapy, myofunctional therapy alone may result in little to no difference in daytime sleepiness (MD 0.20 points, 95% CI -2.56 to 2.96; one study, 49 participants; low-certainty evidence) and may increase AHI (MD 10.50 points, 95% CI 3.43 to 17.57; one study, 49 participants; low-certainty evidence). Compared to respiratory exercises plus nasal dilator strip, myofunctional therapy may result in little to no difference in daytime sleepiness (MD 0.20 points, 95% CI -2.46 to 2.86; one study, 58 participants; low-certainty evidence); probably increases sleep quality slightly (-1.94 points, 95% CI -3.17 to -0.72; two studies, 97 participants; moderate-certainty evidence); and may result in little to no difference in AHI (MD -3.80 points, 95% CI -9.05 to 1.45; one study, 58 participants; low-certainty evidence). Compared to standard medical treatment, myofunctional therapy may reduce daytime sleepiness (MD -6.40 points, 95% CI -9.82 to -2.98; one study, 26 participants; low-certainty evidence) and may increase sleep quality (MD -3.10 points, 95% CI -5.12 to -1.08; one study, 26 participants; low-certainty evidence). In children, compared to nasal washing alone, myofunctional therapy and nasal washing may result in little to no difference in AHI (MD 3.00, 95% CI -0.26 to 6.26; one study, 13 participants; low-certainty evidence). AUTHORS' CONCLUSIONS Compared to sham therapy, myofunctional therapy probably reduces daytime sleepiness and may increase sleep quality in the short term. The certainty of the evidence for all comparisons ranges from moderate to very low, mainly due to lack of blinding of the assessors of subjective outcomes, incomplete outcome data and imprecision. More studies are needed. In future studies, outcome assessors should be blinded. New trials should recruit more participants, including more women and children, and have longer treatment and follow-up periods.
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Affiliation(s)
- José-Ramón Rueda
- Department of Preventive Medicine and Public Health, University of the Basque Country, Leioa, Spain
| | - Iranzu Mugueta-Aguinaga
- Respiratory Physiotherapy Unit, Rehabilitation Service, Pneumology, Biocruces Health Research Institute, Cruces University Hospital, Barakaldo, Spain
| | - Jordi Vilaró
- Department of Health Sciences, Ramon Lull University, Barcelona, Spain
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