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Theorell-Haglöw J, Zhou X, Wittert G, Adams R, Appleton S, Reynolds A, Ljunggren M, Marshall N. Does obstructive sleep apnea increase the risk of cancer and cancer mortality in combined community-based cohorts? J Sleep Res 2024; 33:e14089. [PMID: 37990480 DOI: 10.1111/jsr.14089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/06/2023] [Accepted: 10/17/2023] [Indexed: 11/23/2023]
Abstract
Obstructive sleep apnea (OSA) has been linked to cancer in several clinical and community-based cohorts. The effect in community-based studies free of clinical referral bias needs to be replicated. In this observational prospective cohort study, we pooled data from three community-based prospective cohorts (Uppsala Sleep and Health in Men cohort [UMEN]; Sleep and health in women [SHE]; Men Androgen Inflammation Lifestyle Environment and Stress Cohort [MAILES]; nTotal = 1467). All cohorts had objective data on obstructive sleep apnea and registry linkage data on cancer and cancer mortality. Analyses for different obstructive sleep apnea measures (apnea-hypopnea index [AHI], oxygen desaturation index [ODI], and minimal saturation) as risk factors for cancer incidence (all cancers) were performed using Cox proportional hazards models (follow-up 5-16 years). We did not find an overall increased risk of cancer after adjustment for age, sex, and BMI (HRAHI [95% CI] = 1.00 [0.98; 1.01] and HRODI [95% CI] = 0.99 [0.97; 1.01]). Stratifying by daytime sleepiness did not influence the association. Cancer mortality was not significantly associated with obstructive sleep apnea. Taken together, we did not observe an overall increased risk of cancer or cancer mortality in relation to obstructive sleep apnea, however, our confidence limits remain wide for important diagnostic categories of sleep apnea severity. The relationship between obstructive sleep apnea and cancer needs further investigation in a comprehensive multi-cohort approach with greater statistical precision. For future studies we may need to find and then combine every community-based cohort study that can provide a definitive answer to the question on the risk of cancer from obstructive sleep apnea in the general population.
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Affiliation(s)
- Jenny Theorell-Haglöw
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Xingwu Zhou
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
- Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden
| | - Gary Wittert
- School of Medicine, University of Adelaide, Adelaide, South Australia, Australia
- Freemasons Centre for Male Health and Wellbeing, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Robert Adams
- Freemasons Centre for Male Health and Wellbeing, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Flinders Health and Medical Research Institute - Sleep Health (Adelaide Institute for Sleep Health), College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Sarah Appleton
- Freemasons Centre for Male Health and Wellbeing, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
- Flinders Health and Medical Research Institute - Sleep Health (Adelaide Institute for Sleep Health), College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Amy Reynolds
- Flinders Health and Medical Research Institute - Sleep Health (Adelaide Institute for Sleep Health), College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Mirjam Ljunggren
- Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden
| | - Nathaniel Marshall
- Centre for Research and Understanding of Sleep (CIRUS), Woolcock Institute for Medical Research, Sydney, New South Wales, Australia
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Kader MA, Sainudeen S, Khan AAG, Arora S, Ronsivalle V, Marrapodi MM, Cicciù M, Minervini G. Prevalence of obstructive sleep apnoea syndrome in oncological patients: A systematic review and meta-analysis. J Oral Rehabil 2024; 51:1236-1249. [PMID: 38528326 DOI: 10.1111/joor.13681] [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] [Received: 10/02/2023] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Obstructive sleep apnoea syndrome (OSAS) has garnered increasing attention in recent years due to its potential association with cancer. This systematic review and meta-analysis aimed to assess the prevalence of OSAS in cancer patients through a comprehensive analysis of existing literature. METHODS This systematic review and meta-analysis, conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol, aimed to evaluate the prevalence of OSAS in cancer patients. A comprehensive search of electronic databases was performed to identify relevant studies published up to September 2021. Eligible studies reporting on the prevalence of OSAS in cancer patients, encompassing various study designs, were included in the analysis. Pooled estimates of the odds ratios (OR) with 95% confidence intervals (CIs) were calculated using a random effects model. Heterogeneity among the studies was assessed using the I2 statistic. RESULTS Seventeen studies fulfilled the inclusion criteria and were subsequently included in the review. The prevalence of OSAS in cancer patients was estimated to have an overall OR of 0.80 (95% CI: 0.75-0.85). In comparison with non-cancer patients, cancer patients had a statistically significant greater risk of OSAS, as indicated by the total estimated RR for the prevalence of OSAS in cancer patients, which was 0.89 (95% CI: 0.86-0.92). Nonetheless, there was a significant amount of heterogeneity (I2 = 96%) among the studies. CONCLUSION The overall data analysed in this review indicates that patients with cancer had far reduced likelihood of developing OSAS than individuals without cancer. However, the significant variation across the included studies highlights the need for additional investigation to fully clarify the complex association between OSAS and cancer incidence. These results emphasise how critical it is to identify OSAS as a possible comorbidity in cancer patients, one that should be taken into account for clinical management and ongoing research.
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Affiliation(s)
- Mohammed Abdul Kader
- Department of Restorative Dental Science, College of Dentistry, King Khalid University Abha, Abha, Saudi Arabia
| | - Shan Sainudeen
- Department of Restorative Dental Science, College of Dentistry, King Khalid University Abha, Abha, Saudi Arabia
| | - Abdul Ahad Ghaffar Khan
- Department of Oral and Maxillofacial Surgery, King Khalid University College of Dentistry, Abha, Saudi Arabia
| | - Suraj Arora
- Department of Restorative Dental Science, College of Dentistry, King Khalid University Abha, Abha, Saudi Arabia
| | - Vincenzo Ronsivalle
- Department of General Surgery and Medical-Surgical Specialties, School of Dentistry, University of Catania, Catania, Italy
| | - Maria Maddalena Marrapodi
- Department of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, Largo Madonna delle Grazie 1, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Marco Cicciù
- Department of General Surgery and Medical-Surgical Specialties, School of Dentistry, University of Catania, Catania, Italy
| | - Giuseppe Minervini
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India
- Multidisciplinary Department of Medical-Surgical and Dental Specialties, University of Campania "Luigi Vanvitelli", Naples, Italy
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Burch JB, Delage AF, Zhang H, McLain AC, Ray MA, Miller A, Adams SA, Hébert JR. Sleep disorders and cancer incidence: examining duration and severity of diagnosis among veterans. Front Oncol 2024; 14:1336487. [PMID: 38469244 PMCID: PMC10927008 DOI: 10.3389/fonc.2024.1336487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/29/2024] [Indexed: 03/13/2024] Open
Abstract
Introduction Sleep disruption affects biological processes that facilitate carcinogenesis. This retrospective cohort study used de-identified data from the Veterans Administration (VA) electronic medical record system to test the hypothesis that patients with diagnosed sleep disorders had an increased risk of prostate, breast, colorectal, or other cancers (1999-2010, N=663,869). This study builds upon existing evidence by examining whether patients with more severe or longer-duration diagnoses were at a greater risk of these cancers relative to those with a less severe or shorter duration sleep disorder. Methods Incident cancer cases were identified in the VA Tumor Registry and sleep disorders were defined by International Classification of Sleep Disorder codes. Analyses were performed using extended Cox regression with sleep disorder diagnosis as a time-varying covariate. Results Sleep disorders were present among 56,055 eligible patients (8% of the study population); sleep apnea (46%) and insomnia (40%) were the most common diagnoses. There were 18,181 cancer diagnoses (41% prostate, 12% colorectal, 1% female breast, 46% other). The hazard ratio (HR) for a cancer diagnosis was 1.45 (95% confidence interval [CI]: 1.37, 1.54) among those with any sleep disorder, after adjustment for age, sex, state of residence, and marital status. Risks increased with increasing sleep disorder duration (short [<1-2 years] HR: 1.04 [CI: 1.03-1.06], medium [>2-5 years] 1.23 [1.16-1.32]; long [>5-12 years] 1.52 [1.34-1.73]). Risks also increased with increasing sleep disorder severity using cumulative sleep disorder treatments as a surrogate exposure; African Americans with more severe disorders had greater risks relative to those with fewer treatments and other race groups. Results among patients with only sleep apnea, insomnia, or another sleep disorder were similar to those for all sleep disorders combined. Discussion The findings are consistent with other studies indicating that sleep disruption is a cancer risk factor. Optimal sleep and appropriate sleep disorder management are modifiable risk factors that may facilitate cancer prevention.
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Affiliation(s)
- James B. Burch
- Department of Epidemiology, School of Population Health, Virginia Commonwealth University, Richmond, VA, United States
| | - Alexandria F. Delage
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
- Palmetto GBA, Columbia, SC, United States
| | - Hongmei Zhang
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, United States
| | - Alexander C. McLain
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
| | - Meredith A. Ray
- Division of Epidemiology, Biostatistics, and Environmental Health, School of Public Health, University of Memphis, Memphis, TN, United States
| | - Austin Miller
- Alabama College of Osteopathic Medicine, Dothan, AL, United States
| | - Swann A. Adams
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
- Department of Biobehavioral Health and Nursing Science, College of Nursing, University of South Carolina, Columbia, SC, United States
| | - James R. Hébert
- Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC, United States
- South Carolina Statewide Cancer Prevention & Control Program, University of South Carolina, Columbia, SC, United States
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Cubillos-Zapata C, Troncoso-Acevedo F, Díaz-García E, Alfaro E, Gotera-Rivera C, Pérez-Warnisher T, Peces-Barba G, Seijo LM, García-Río F. Sleep apnoea increases biomarkers of immune evasion, lymphangiogenesis and tumour cell aggressiveness in high-risk patients and those with established lung cancer. ERJ Open Res 2024; 10:00777-2023. [PMID: 38375428 PMCID: PMC10875459 DOI: 10.1183/23120541.00777-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 11/15/2023] [Indexed: 02/21/2024] Open
Abstract
Background Intermittent hypoxaemia and obstructive sleep apnoea (OSA) have been linked to lung cancer through as yet unidentified pathophysiological mechanisms. This study evaluates the effect of OSA on serum levels of biomarkers of immunosurveillance, lymphangiogenesis and intrinsic tumour cell aggressiveness in high-risk individuals screened for lung cancer and patients with established lung cancer. Methods Serum samples from individuals participating in a lung cancer screening cohort (SAILS study) or with newly diagnosed lung cancer (SAIL study) were analysed. All patients underwent home sleep apnoea testing. Soluble levels of programmed cell death-1 (PD-1), programmed cell death ligand-1 (PD-L1), cytotoxic T-lymphocyte antigen-4, midkine (MDK), paraspeckle component-1 (PSPC1), transforming growth factor-β1 (TGF-β1), SMAD3, matrix metalloproteinase-2 and co-stimulus receptor of the tumour necrosis factor family of receptors (CD137) were determined by ELISA. Results The presence of moderate-to-severe OSA was associated with increased levels of PSPC1, MDK, PD-L1 and PD-1 in screened individuals, and with higher values of PSPC1, TGF-β1, PD-L1 and PD-1 in patients with established lung cancer. The findings correlated with nocturnal intermittent hypoxaemia indices. Conclusion Moderate-to-severe OSA is associated with increased expression of serum biomarkers of immune evasion, lymphangiogenesis and tumour cell aggressiveness in high-risk individuals screened for lung cancer and those with established disease.
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Affiliation(s)
- Carolina Cubillos-Zapata
- Grupo de Enfermedades Respiratorias, Servicio de Neumología, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
| | - Fernanda Troncoso-Acevedo
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Servicio de Neumología, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | - Elena Díaz-García
- Grupo de Enfermedades Respiratorias, Servicio de Neumología, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
| | - Enrique Alfaro
- Grupo de Enfermedades Respiratorias, Servicio de Neumología, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Carolina Gotera-Rivera
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Servicio de Neumología, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | | | - Germán Peces-Barba
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Servicio de Neumología, IIS-Fundación Jiménez Díaz, Madrid, Spain
| | - Luis M. Seijo
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Clínica Universidad de Navarra, Madrid, Spain
- L.M. Seijo and F. García-Río contributed equally to this article as lead authors and supervised the work
| | - Francisco García-Río
- Grupo de Enfermedades Respiratorias, Servicio de Neumología, Hospital Universitario La Paz-IdiPAZ, Madrid, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Respiratorias, Madrid, Spain
- Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- L.M. Seijo and F. García-Río contributed equally to this article as lead authors and supervised the work
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Park MJ, Han KD, Cho JH, Choi JH. Testicular Cancer Incidence among Obstructive Sleep Apnea (OSA) Patients: South Korean National Health Insurance Data. Cancers (Basel) 2023; 15:3273. [PMID: 37444382 DOI: 10.3390/cancers15133273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
Obstructive sleep apnea (OSA) has been linked to an increased risk of acquiring many types of cancer. No data on the prevalence of testicular cancer in OSA patients have been reported in the literature. The goal of the present investigation is to find out the impact of OSA on the incidence of testicular cancer based on the Korea National Health Insurance Service (KNHIS) dataset. A cohort of adult male patients newly registered with OSA in the KNHIS data from 2007 to 2014 who had no history of any previous cancer diagnosis was included. The main outcome measure was newly diagnosed testicular cancer in the National Medical Expenses Support Program. The control group was set at five times larger than the OSA group, and it was matched with age and sex. The cumulative incidence and hazard ratio (HR) for the development of testicular cancer were compared between the OSA and control groups. Further subgroup analysis was conducted in the three different age groups. In the study period, a total of 152,801 male adult patients newly diagnosed with OSA were included, whereas 764,005 individuals were recruited as the control group. The HR of OSA for developing testicular cancer was 1.58 (95% confidence interval [CI]: 0.92-2.60), showing no significant HR regardless of confounding adjustment. However, the subgroup analysis revealed a significantly increased HR to develop testicular cancer of 3.39 (95% CI: 1.08-10.06) in groups aged more than 65, whereas the age ranges of 20-40 and 40-64 showed no significance (1.19 (0.44-2.75) and 1.27 (0.50-2.80), respectively). OSA may not influence the incidence of testicular cancer in the general adult population. However, compared to younger males, males over 65 may be more susceptible to OSA when it comes to developing testicular cancer.
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Affiliation(s)
- Marn Joon Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University Hospital, School of Medicine, Inha University, 27 Inhang-ro, Jung-gu, Incheon 22332, Republic of Korea
| | - Kyung-Do Han
- Department of Statistics and Actuarial Science, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Republic of Korea
| | - Jae Hoon Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Konkuk University, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, Republic of Korea
| | - Ji Ho Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Bucheon Hospital, Soonchunhyang University, 170 Jomaru-ro, Bucheon 14584, Republic of Korea
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Bade BC, Faiz SA, Ha DM, Tan M, Barton-Burke M, Cheville AL, Escalante CP, Gozal D, Granger CL, Presley CJ, Smith SM, Chamberlaine DM, Long JM, Malone DJ, Pirl WF, Robinson HL, Yasufuku K, Rivera MP. Cancer-related Fatigue in Lung Cancer: A Research Agenda: An Official American Thoracic Society Research Statement. Am J Respir Crit Care Med 2023; 207:e6-e28. [PMID: 36856560 PMCID: PMC10870898 DOI: 10.1164/rccm.202210-1963st] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
Background: Fatigue is the most common symptom among cancer survivors. Cancer-related fatigue (CRF) may occur at any point in the cancer care continuum. Multiple factors contribute to CRF development and severity, including cancer type, treatments, presence of other symptoms, comorbidities, and medication side effects. Clinically, increasing physical activity, enhancing sleep quality, and recognizing sleep disorders are integral to managing CRF. Unfortunately, CRF is infrequently recognized, evaluated, or treated in lung cancer survivors despite more frequent and severe symptoms than in other cancers. Therefore, increased awareness and understanding of CRF are needed to improve health-related quality of life in lung cancer survivors. Objectives: 1) To identify and prioritize knowledge and research gaps and 2) to develop and prioritize research questions to evaluate mechanistic, diagnostic, and therapeutic approaches to CRF among lung cancer survivors. Methods: We convened a multidisciplinary panel to review the available literature on CRF, focusing on the impacts of physical activity, rehabilitation, and sleep disturbances in lung cancer. We used a three-round modified Delphi process to prioritize research questions. Results: This statement identifies knowledge gaps in the 1) detection and diagnostic evaluation of CRF in lung cancer survivors; 2) timing, goals, and implementation of physical activity and rehabilitation; and 3) evaluation and treatment of sleep disturbances and disorders to reduce CRF. Finally, we present the panel's initial 32 research questions and seven final prioritized questions. Conclusions: This statement offers a prioritized research agenda to 1) advance clinical and research efforts and 2) increase awareness of CRF in lung cancer survivors.
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Impact of obstructive sleep apnea on cancer risk: a systematic review and meta-analysis. Sleep Breath 2022; 27:843-852. [DOI: 10.1007/s11325-022-02695-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 07/30/2022] [Accepted: 08/04/2022] [Indexed: 10/14/2022]
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Tan BKJ, Teo YH, Tan NKW, Yap DWT, Sundar R, Lee CH, See A, Toh ST. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med 2022; 18:1427-1440. [PMID: 34755597 PMCID: PMC9059590 DOI: 10.5664/jcsm.9772] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
STUDY OBJECTIVES Biological models suggest that obstructive sleep apnea (OSA) is potentially carcinogenic. We aimed to clarify the inconsistent epidemiological literature by considering various traditional and novel OSA severity indices. METHODS We systematically searched PubMed, Embase, Scopus, and the Cochrane Library for observational or randomized studies of associations of OSA, measured by diagnostic codes or any index, each with all-cancer incidence or mortality in adults, compared with participants with no/mild OSA. Two reviewers independently selected studies, extracted data, and evaluated study bias using the Newcastle-Ottawa scale and quality of evidence using GRADE (Grading of Recommendations Assessment, Development, and Evaluation). We performed inverse variance-weighted, random-effects meta-analyses and sensitivity analyses. RESULTS We included 20 observational studies (5,340,965 participants), all with moderate/low bias, from 1,698 records. Based on T90 (sleep duration with oxygen saturation < 90%), patients with OSA who had moderate (T90 > 1.2%, hazard ratio [HR] = 1.28, 95% confidence interval [CI] = 1.07-1.54) and severe nocturnal hypoxemia (T90 > 12%, HR = 1.43, 95% CI = 1.16-1.76) experienced 30%-40% higher pooled all-cancer risk than normoxemic patients, after multiple adjustment for covariates including obesity. Furthermore, severe nocturnal hypoxemia nearly tripled all-cancer mortality (HR = 2.66, 95% CI = 1.21-5.85). Patients with apnea-hypopnea index-defined severe OSA, but not moderate OSA, had higher all-cancer risk (HR = 1.18, 95% CI = 1.03-1.35) but similar all-cancer mortality as patients without OSA. An OSA diagnosis was not associated with all-cancer risk. Evidence quality ranged from low to moderate. Insufficient evidence was available on the oxygen desaturation index, lowest/median saturation, and arousal index. CONCLUSIONS In patients with OSA, nocturnal hypoxemia is independently associated with all-cancer risk and mortality. Future studies should explore if risk differs by cancer type, and whether cancer screening and OSA treatment are beneficial. SYSTEMATIC REVIEW REGISTRATION Registry: PROSPERO; URL: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=220836; Identifier: CRD42021220836. CITATION Tan BKJ, Teo YH, Tan NKW, et al. Association of obstructive sleep apnea and nocturnal hypoxemia with all-cancer incidence and mortality: a systematic review and meta-analysis. J Clin Sleep Med. 2022;18(5):1427-1440.
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Affiliation(s)
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | - Raghav Sundar
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Hematology-Oncology, National University Cancer Institute, National University Hospital, Singapore,Cancer and Stem Cell Biology Program, Duke-National University of Singapore Medical School, Singapore,The N.1 Institute for Health, National University of Singapore, Singapore,Singapore Gastric Cancer Consortium
| | - Chi Hang Lee
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Cardiology, National University Health System, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Singapore,Surgery Academic Clinical Program, SingHealth, Singapore,SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore,Address correspondence to: Song Tar Toh, MBBS, MMed (ORL), MMed (Sleep Medicine), FAMS (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322; ; and Anna See, MBBS, MMed (ORL), Department of Otorhinolaryngology–Head and Neck Surgery, Singapore General Hospital, Outram Road, Singapore 169608; Tel: +65 6222 3322;
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Xiong H, Lao M, Wang L, Xu Y, Pei G, Lu B, Shi Q, Chen J, Zhang S, Ou Q. The Incidence of Cancer Is Increased in Hospitalized Adult Patients With Obstructive Sleep Apnea in China: A Retrospective Cohort Study. Front Oncol 2022; 12:856121. [PMID: 35433429 PMCID: PMC9008763 DOI: 10.3389/fonc.2022.856121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 02/28/2022] [Indexed: 12/24/2022] Open
Abstract
Background The association between obstructive sleep apnea (OSA) and the incidence and mortality of cancer remain unclear, especially in Asian populations. Thus, this study was conducted to explore the relationship between OSA and the incidence and mortality of cancer in hospitalized patients. Methods This retrospective cohort study evaluated inpatients from Guangdong Provincial People’s Hospital for suspected OSA between January 2005 and December 2015. Cancer incidence, all-cause mortality, and cancer mortality and were determined using data from the hospital information system and Centers for Disease Control. Between-group comparisons were carried out by performing a chi-square test and analysis of variance. Kaplan–Meier analysis and the Cox proportional risk model were applied to investigate the association between OSA and cancer incidence and mortality. Results Of the 4,623 hospitalized patients included, 3,786 (81.9%) patients were diagnosed with OSA. After a median follow-up of 9.1 years (interquartile range, 9.79–11.44), the incidence of cancer was 6.6% (251/3,786), with lung cancer having the highest incidence at 1.6% (60/3,786). The mortality rate of OSA patients was higher than that of non-OSA patients (16.83% vs.12.78%, p=0.008), but the relationship between apnea-hypopnea index (AHI), oxygen saturation less than 90% (TSat90), and cancer mortality was not statistically significant (p>0.05).The mortality rate for all types of cancer was 2.8% (105/3,786), with lung cancer having the highest mortality rate at 0.8% (32/3,786). The cumulative incidence of cancer in the severe OSA group was 8.2%, which was higher than that in the normal, mild, and moderate OSA groups (P=0.010). Further, the Cox proportional risk regression model showed a progressive enhancement in the risk of cancer incidence as the AHI increased (adjusted hazard ratio [HR]: 1.009 [95% confidence interval (CI): 1.003–1.016], P=0.005). Based on subgroup analysis, the risk of cancer increased as the AHI increased in patients aged <65 years (adjusted HR: 1.019 [95% CI: 1.007–1.031], P=0.002). In addition, the cancer incidence was significantly higher in the severe OSA group than in the normal, mild, and moderate OSA groups (adjusted HR: 2.825 [95% CI: 1.358–5.878], P=0.019). Conclusion The incidence of cancer is higher in patients with OSA than in non-OSA patients and is significantly positively associated with the severity of OSA. Particularly, for OSA patients aged <65 years, lung cancer is the main cause of death in those with new-onset cancer. Mortality was higher in OSA patients than in non-OSA patients.
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Affiliation(s)
- Hailin Xiong
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Miaochan Lao
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Longlong Wang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Yanxia Xu
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Guo Pei
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Bin Lu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
| | - Qianping Shi
- Huizhou Municipal Central Hospital of Guangdong Province, Huizhou, China
| | - Jialian Chen
- Huizhou Municipal Central Hospital of Guangdong Province, Huizhou, China
| | - Shuyi Zhang
- Huizhou Municipal Central Hospital of Guangdong Province, Huizhou, China
| | - Qiong Ou
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Geriatrics Institute, Guangzhou, China
- *Correspondence: Qiong Ou,
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Cao Y, Ning P, Li Q, Wu S. Cancer and obstructive sleep apnea: An updated meta-analysis. Medicine (Baltimore) 2022; 101:e28930. [PMID: 35451384 PMCID: PMC8913079 DOI: 10.1097/md.0000000000028930] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 02/08/2022] [Indexed: 01/04/2023] Open
Abstract
OBJECTIVE The relationship between cancers and obstructive sleep apnea (OSA) has been discussed for decades. However, the previous meta-analysis led to opposite conclusions. To further investigate this controversial issue, we performed this systematic review and meta-analysis update. METHODS PubMed, Embase, and the Cochrane Library were systematically searched and studies on "cancer and OSA" were all included. Two reviewers independently searched articles, extracted data, and assessed the quality of included studies. Moreover, the overall incidence of cancer and OSA in corresponding populations was calculated. RESULTS Of the 1434 titles identified, 22 articles involving more than 32.1 million patients were included in this meta-analysis. An overall incidence of OSA positive individuals in cancer was 46 (95%CI, 27-67)%, and the prevalence of cancers in OSA patients reached 1.53 (95%CI, 1.01-2.31) times higher than non-OSA individuals. CONCLUSION This meta-analysis indicated that there was a high prevalence of OSA in cancer patients, and individuals with OSA were more likely to develop tumors, and the incidence was related to the severity of OSA.
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Affiliation(s)
- Yuan Cao
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Pu Ning
- Department of Pulmonary and Critical Care Medicine, The Second Affiliated Hospital of Medical College, Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Qiao Li
- Clinical Laboratory, The Affiliated Children Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Shuang Wu
- Clinical Laboratory, The Affiliated Children Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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11
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Yap DWT, Tan NKW, Tan BKJ, Teo YH, Tan VKM, See A, Toh ST. The Association of Obstructive Sleep Apnea With Breast Cancer Incidence and Mortality: A Systematic Review and Meta-analysis. J Breast Cancer 2022; 25:149-163. [PMID: 35380020 PMCID: PMC9250875 DOI: 10.4048/jbc.2022.25.e11] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 01/08/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Emerging evidence from animal models suggests that intermittent hypoxia due to obstructive sleep apnea (OSA) is a risk factor for breast cancer. Despite their biological plausibility, human epidemiological studies have reported conflicting results. Therefore, we conducted a meta-analysis to delineate this relationship. Methods We searched the PubMed, Embase, Scopus, and Cochrane Library databases for eligible studies from inception until June 6, 2021. Two reviewers selected randomized trials or observational studies reporting the association between OSA and breast cancer incidence compared with those without OSA. Two reviewers extracted relevant data and assessed the quality of evidence using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework and Newcastle-Ottawa Scale (NOS). We pooled the maximally covariate-adjusted hazard ratios (HRs) using a random-effects inverse variance-weighted meta-analysis and performed pre-specified subgroup analyses. Results We included six studies out of 1,707 records, comprising a combined cohort of 5,165,200 patients. All studies used the International Classification of Diseases codes to classify OSA and breast cancer. OSA patients had a 36% increased breast cancer risk (HR, 1.36; 95% confidence interval [CI], 1.03–1.80; N = 6, I2 = 96%) compared to those without OSA. Most studies adjusted for confounders, such as age, sex, obesity, diabetes mellitus, alcohol use, and hypertension. Subgroup analyses for studies with (1) multivariate adjustment and (2) at least five years of follow-up yielded HRs of 1.35 (95% CI, 0.98–1.87; N = 5, I2 = 96%) and 1.57 (95% CI, 1.14–2.18; N = 4; I2 = 90%), respectively. One Mendelian randomization study suggested a causal relationship, with a two-fold increase in the odds of breast cancer in patients with OSA. Conclusion This meta-analysis suggested that OSA is a risk factor for breast cancer. Future studies should explore the dose-response relationship between OSA and breast cancer, and whether treatment may mitigate breast cancer risk or progression.
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Affiliation(s)
- Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital (SGH), Singapore
- Division of Surgery & Surgical Oncology, National Cancer Centre Singapore
- SingHealth Duke-NUS Breast Centre, SingHealth, Singapore
| | - Anna See
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
- Department of Otorhinolaryngology–Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
- SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore
- Duke-NUS Medical School, Singapore
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12
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Tan NKW, Yap DWT, Tan BKJ, Teo YH, Tan EKH, Chan JY, Lee HY, See A, Toh ST. The association of obstructive sleep apnea with melanoma incidence and mortality: a meta-analysis of 5,276,451 patients. Sleep Med 2021; 88:213-220. [PMID: 34794048 DOI: 10.1016/j.sleep.2021.10.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/21/2021] [Accepted: 10/23/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Melanoma is the most aggressive and lethal form of skin cancer. While emerging in-vivo evidence suggests that intermittent hypoxia, a hallmark feature of obstructive sleep apnea (OSA), may induce melanoma tumorigenesis, the epidemiological association between OSA and melanoma has been inconsistent. METHODS We performed a literature search of PubMed, Embase, Scopus and Cochrane Library from inception until 6 June 2021. Two reviewers independently selected randomized trials or observational studies that reported the association of OSA with melanoma incidence or mortality in adults, in comparison to participants with no OSA. Two reviewers independently extracted relevant data and assessed the quality of evidence using the GRADE framework and the Newcastle-Ottawa Scale (NOS). We pooled data using an inverse variance-weighted meta-analysis and ran pre-specified subgrourp analyses. RESULTS The meta-analysis included six studies out of 1897 records, comprising a combined cohort of 5,276,451 patients. All studies were adjusted for covariates, with majority of studies adjusting for age (N=5) and sex (N = 4). Compared to those without OSA, patients with OSA had 71% higher pooled hazards of melanoma (HR = 1.71; 95% CI: 1.08-2.69, I2 = 99%). Subgroup analyses for studies with (1) median follow-up duration of at least five years, (2) prospective study design, (3) adjustment for obesity yielded HRs of 1.88 (95%CI:1.32-2.67, N = 5), 1.11 (95%CI:0.77-1.60, N = 2) and 1.52 (95%CI:0.75-3.08, N = 3) respectively. One study investigating the relationship between OSA and melanoma mortality detected no association. There were insufficient studies to assess publication bias. CONCLUSIONS Meta-analysis of mainly retrospective observational studies, with significant heterogeneity, suggests increased melanoma incidence in OSA patients. Future studies should prospectively explore the differential risk of melanoma for varying OSA severity, and whether timely OSA treatment may mitigate this risk.
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Affiliation(s)
- Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Dominic Wei Ting Yap
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Yao Hao Teo
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | | | - Jason Yongsheng Chan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore; Duke-NUS Medical School, Singapore
| | - Haur Yueh Lee
- Department of Dermatology, Singapore General Hospital, Singapore; Duke-NUS Medical School, Singapore
| | - Anna See
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Song Tar Toh
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore; Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore; SingHealth Duke-NUS Sleep Centre, SingHealth, Singapore; Duke-NUS Medical School, Singapore.
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13
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Justeau G, Bailly S, Gervès-Pinquié C, Trzepizur W, Meslier N, Goupil F, Pigeanne T, Launois S, Leclair-Visonneau L, Masson P, Bizieux-Thaminy A, Racineux JL, Gozal D, Gagnadoux F. Cancer risk in patients with sleep apnoea following adherent 5-year CPAP therapy. Eur Respir J 2021; 59:13993003.01935-2021. [PMID: 34475228 DOI: 10.1183/13993003.01935-2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/10/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND Increasing evidence suggests that obstructive sleep apnoea (OSA) contributes to cancer risk; however, limited data are available on the impact of continuous positive airway pressure (CPAP) therapy on cancer incidence. We aimed to determine whether adherence to CPAP therapy is associated with a reduction in all-cancer incidence compared to non-adherent patients with OSA. METHODS The study relied on the data collected by the multicentre study Pays de la Loire Sleep Cohort, linked to health administrative data, such as to identify new-onset cancer. We included patients who were prescribed CPAP for OSA, with no history of cancer before the diagnostic sleep study or during the first year of CPAP. Patients with documented CPAP use for at least 4 h per night were defined as adherent. Those who discontinued or used CPAP less than 4 h at night constituted the non-adherent group. A propensity-score inverse probability of treatment weighting analysis was performed to assess the effect of CPAP adherence on cancer risk. RESULTS After a median [inter-quartile range] follow-up of 5.4 [3.1-8.0] years, 437 (9.7%) of 4,499 patients developed cancer, 194 (10.7%) in the non-adherent group (n=1817) and 243 (9.1%) in adherent patients (n=2682). The final weighted model showed no significant impact of CPAP adherence on all-cause cancer risk (sub distribution hazard ratio [95% confidence interval]): 0.94 [0.78; 1.14]). CONCLUSIONS Adherence to CPAP therapy in OSA patients was not associated with a reduction in all-cancer incidence. Whether adherent CPAP therapy of OSA might reduce the risk of specific cancer sites should be further evaluated.
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Affiliation(s)
- Grégoire Justeau
- Department of Respiratory and Sleep Medicine, Angers University hospital, Angers, France.,INSERM Unit 1063, Angers, France
| | - Sebastien Bailly
- University Grenoble Alpes, Inserm, CHU Grenoble Alpes, HP2, Grenoble, France
| | | | - Wojciech Trzepizur
- Department of Respiratory and Sleep Medicine, Angers University hospital, Angers, France.,INSERM Unit 1063, Angers, France
| | - Nicole Meslier
- Department of Respiratory and Sleep Medicine, Angers University hospital, Angers, France.,INSERM Unit 1063, Angers, France
| | - François Goupil
- Department of Respiratory Diseases, Le Mans General Hospital, Le Mans, France
| | - Thierry Pigeanne
- Respiratory Unit, Pôle santé des Olonnes, Olonne sur Mer, France
| | | | | | - Philippe Masson
- Department of Respiratory Diseases, Cholet General Hospital, Cholet, France
| | - Acya Bizieux-Thaminy
- Department of Respiratory Diseases, La Roche sur Yon General Hospital, La Roche sur Yon, France
| | | | - David Gozal
- ays de la Loire Respiratory Health Research Institute, Beaucouzé, France
| | - Frédéric Gagnadoux
- Department of Respiratory and Sleep Medicine, Angers University hospital, Angers, France .,INSERM Unit 1063, Angers, France
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Guo Y, Chen Y, Yang Q, Hou F, Liu X, Ma Y. Multi-Scale Permutation Entropy: A Potential Measure for the Impact of Sleep Medication on Brain Dynamics of Patients with Insomnia. ENTROPY (BASEL, SWITZERLAND) 2021; 23:1101. [PMID: 34573726 PMCID: PMC8472826 DOI: 10.3390/e23091101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/21/2021] [Accepted: 08/22/2021] [Indexed: 11/23/2022]
Abstract
Insomnia is a common sleep disorder that is closely associated with the occurrence and deterioration of cardiovascular disease, depression and other diseases. The evaluation of pharmacological treatments for insomnia brings significant clinical implications. In this study, a total of 20 patients with mild insomnia and 75 healthy subjects as controls (HC) were included to explore alterations of electroencephalogram (EEG) complexity associated with insomnia and its pharmacological treatment by using multi-scale permutation entropy (MPE). All participants were recorded for two nights of polysomnography (PSG). The patients with mild insomnia received a placebo on the first night (Placebo) and temazepam on the second night (Temazepam), while the HCs had no sleep-related medication intake for either night. EEG recordings from each night were extracted and analyzed using MPE. The results showed that MPE decreased significantly from pre-lights-off to the period during sleep transition and then to the period after sleep onset, and also during the deepening of sleep stage in the HC group. Furthermore, results from the insomnia subjects showed that MPE values were significantly lower for the Temazepam night compared to MPE values for the Placebo night. Moreover, MPE values for the Temazepam night showed no correlation with age or gender. Our results indicated that EEG complexity, measured by MPE, may be utilized as an alternative approach to measure the impact of sleep medication on brain dynamics.
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Affiliation(s)
- Yanping Guo
- School of Electrical & Mechanical Engineering and Automation, Nanhang Jincheng College, Nanjing 211156, China;
| | - Yingying Chen
- School of Science, China Pharmaceutical University, Nanjing 210009, China; (Y.C.); (Q.Y.); (F.H.)
- School of Software, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qianru Yang
- School of Science, China Pharmaceutical University, Nanjing 210009, China; (Y.C.); (Q.Y.); (F.H.)
| | - Fengzhen Hou
- School of Science, China Pharmaceutical University, Nanjing 210009, China; (Y.C.); (Q.Y.); (F.H.)
| | - Xinyu Liu
- School of Science, China Pharmaceutical University, Nanjing 210009, China; (Y.C.); (Q.Y.); (F.H.)
| | - Yan Ma
- Osher Center for Integrative Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02215, USA;
- Beth Israel Deaconess Medical Center, Division of Interdisciplinary Medicine and Biotechnology, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
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15
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Cheng L, Guo H, Zhang Z, Yao Y, Yao Q. Obstructive sleep apnea and incidence of malignant tumors: a meta-analysis. Sleep Med 2021; 84:195-204. [PMID: 34166986 DOI: 10.1016/j.sleep.2021.05.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES This paper assessed the connection between obstructive sleep apnea (OSA) and the incidence of malignant tumors. METHODS PubMed, Cochrane, Scopus, Health Source Nursing Academic Edition, EMBASE, and Web of Sciences were searched until the date of July 25, 2020. The analysis included an assessment of the overall incidence of OSA malignancies, the incidence of OSA malignancies by age and gender, and the incidence of different types of malignancies in patients with OSA. The total rate and the corresponding 95% confidence interval (CI) of the incidence of malignant tumors in patients with OSA were calculated. Patients with OSA were classified according to age, gender, and different types of malignant tumors for meta-analysis. RESULTS A total of 12 studies involving 862,820 participants were included in this meta-analysis. Random effect model analysis showed that the total incidence of malignant tumors in patients with OSA was 0.046% (95% CI: 0.027-0.065, P < 0.001), higher than that of malignant tumors in the general population. According to the analytical results classified by gender, the incidence of malignant tumor in female patients with OSA was 4.0% (95% CI: 0.014-0.066), higher than that in male patients at 3.5% (95% CI: 0.012-0.058). The analytical results classified by age showed that the incidence of malignant tumors in patients with OSA aged below 60 years was 1.8% (95% CI: 0.000-0.036), lower than that in patients aged above 60 years at 4.3% (95% CI: 0.002-0.084). The analytical results classified by the types of malignant tumors showed that the incidences of breast cancer, lung cancer, colorectal cancer, prostate cancer, kidney cancer, pancreatic cancer, and melanoma in patients with OSA were 0.5% (95% CI: 0.001-0.008), 0.5% (95% CI: 0.002-0.009), 0.5% (95% CI: 0.003-0.008), 1.1% (95% CI: 0.002-0.021), 0.3% (95% CI: 0.001-0.005), 0.1% (95% CI: 0.001-0.002), and 0.4% (95% CI: 0.003-0.005), respectively. Among them, the incidence of prostate cancer was the highest, followed by breast cancer, lung cancer, colorectal cancer, melanoma, and kidney cancer, whereas the incidence of pancreatic cancer was the lowest. However, the incidence of specific malignant tumors in patients with OSA did not have a significant increase compared with that in the general population. CONCLUSIONS The analytical results of this meta-analysis suggested that OSA may be associated with an overall increase in the incidence of malignancies based on the currently available data, but the connection with specific types of malignancies was not significant. Further studies are needed to explore this association in the future.
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Affiliation(s)
- Linjie Cheng
- Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Hai Guo
- Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China; Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Zhenlian Zhang
- Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yangyang Yao
- Department of Anesthesiology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Qiaoling Yao
- Department of Physiology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, Xinjiang, China.
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Beydoun HA, Beydoun MA, Weiss J, Hossain S, Huang S, Alemu BT, Zonderman AB. Insomnia as a predictor of diagnosed memory problems: 2006-2016 Health and Retirement Study. Sleep Med 2021; 80:158-166. [PMID: 33601227 PMCID: PMC11000697 DOI: 10.1016/j.sleep.2021.01.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/04/2021] [Accepted: 01/26/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To evaluate the longitudinal relationship in insomnia symptoms over time with incident memory problems and dementia diagnoses among U.S. adults aged 65 years and older. METHODS Secondary analyses were performed on 9518 elderly participants (≥65 years) who completed the 2006 wave of the Health and Retirement Study (HRS) and were followed-up to determine if insomnia symptom scores (2006-2014) were associated with time-to-onset of [1] physician-diagnosed "memory-related disease", "Alzheimer's disease" and/or "dementia, senility or any other serious memory impairment" and [2] diagnosis of dementia based on HRS-specific criteria. Cox proportional hazards models were constructed adjusting for socio-demographic, lifestyle, and health characteristics. RESULTS In fully adjusted models, severe insomnia symptoms were associated with increased risk of physician-diagnosed memory problems. Individuals reporting any change (increase or decrease) in insomnia symptoms during the 2006-2010 period were more likely to be diagnosed with dementia based on HRS criteria. Finally, those who experienced an increase in the severity of insomnia symptoms over time exhibited 41-72% increased risks of physician-diagnosed memory problems and 45-58% increased risks of dementia diagnosis based on HRS criteria. CONCLUSIONS When severe insomnia symptoms increased over time, physician-diagnosed memory problems and dementia diagnoses also increased among U.S. elderly people over a 10-year follow-up period. More studies are required to confirm these findings using large prospective cohort designs and validated tools.
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Affiliation(s)
- Hind A Beydoun
- Department of Research Programs, Fort Belvoir Community Hospital, Fort Belvoir, VA, USA, 22060.
| | - May A Beydoun
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA, 21225.
| | - Jordan Weiss
- Department of Demography, UC Berkeley, Berkeley, CA, USA.
| | - Sharmin Hossain
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA, 21225.
| | - Shuyan Huang
- Fort Belvoir Troop Command, Fort Belvoir, VA, USA, 22060.
| | - Brook T Alemu
- Health Sciences Program, School of Health Sciences, Western Carolina University, Cullowhee, NC, USA, 28723.
| | - Alan B Zonderman
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA, 21225.
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17
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OSA-Related Hypoxemia and Cancer Risk. Chest 2020; 158:2264-2265. [PMID: 33280745 DOI: 10.1016/j.chest.2020.08.2046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 11/20/2022] Open
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Kendzerska T, Povitz M, Leung RS, Boulos MI, McIsaac DI, Murray BJ, Bryson GL, Talarico R, Hilton JF, Malhotra A, Gershon AS. Obstructive Sleep Apnea and Incident Cancer: A Large Retrospective Multicenter Clinical Cohort Study. Cancer Epidemiol Biomarkers Prev 2020; 30:295-304. [PMID: 33268490 DOI: 10.1158/1055-9965.epi-20-0975] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/01/2020] [Accepted: 11/20/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND To examine the association between the severity of obstructive sleep apnea (OSA) and nocturnal hypoxemia with incident cancer. METHODS This was a multicenter retrospective clinical cohort study using linked clinical and provincial health administrative data on consecutive adults who underwent a diagnostic sleep study between 1994 and 2017 in four academic hospitals (Canada) who were free of cancer at baseline. Cancer status was derived from the Ontario Cancer Registry. Cox cause-specific regressions were utilized to address the objective and to calculate the 10-year absolute risk difference (ARD) in the marginal probability of incident cancer and the number needed to harm (NNH). RESULTS Of 33,997 individuals considered, 33,711 with no missing OSA severity were included: median age, 50 years; 58% male; and 23% with severe OSA (apnea-hypopnea index >30). Of the 18,458 individuals with information on sleep time spent with oxygen saturation (SaO2) <90%, 5% spent >30% of sleep with SaO2 <90% (severe nocturnal hypoxemia). Over a median of 7 years, 2,498 of 33,711 (7%) individuals developed cancer, with an incidence rate of 10.3 (10.0-10.8) per 1,000 person-years. Controlling for confounders, severe OSA was associated with a 15% increased hazard of developing cancer compared with no OSA (HR = 1.15, 1.02-1.30; ARD = 1.28%, 0.20-2.37; and NNH = 78). Severe hypoxemia was associated with about 30% increased hazard (HR = 1.32, 1.08-1.61; ARD = 2.38%, 0.47-4.31; and NNH = 42). CONCLUSIONS In a large cohort of individuals with suspected OSA free of cancer at baseline, the severity of OSA and nocturnal hypoxemia was independently associated with incident cancer. IMPACT These findings suggest the need for more targeted cancer risk awareness in individuals with OSA.
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Affiliation(s)
- Tetyana Kendzerska
- Department of Medicine, The Ottawa Hospital/University of Ottawa, Ottawa, Ontario, Canada.
- ICES (formerly the Institute for Clinical Evaluative Sciences), Ottawa, Toronto, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Marcus Povitz
- Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Richard S Leung
- Department of Medicine, the University of Toronto, Toronto, Ontario, Canada
- St. Michael's Hospital, Toronto, Ontario, Canada
| | - Mark I Boulos
- Department of Medicine, the University of Toronto, Toronto, Ontario, Canada
- Division of Neurology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Daniel I McIsaac
- ICES (formerly the Institute for Clinical Evaluative Sciences), Ottawa, Toronto, Ontario, Canada
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Departments of Anesthesiology and Pain Medicine, The Ottawa Hospital/University of Ottawa, Ottawa, Ontario, Canada
| | - Brian J Murray
- Department of Medicine, the University of Toronto, Toronto, Ontario, Canada
- Division of Neurology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Gregory L Bryson
- Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Departments of Anesthesiology and Pain Medicine, The Ottawa Hospital/University of Ottawa, Ottawa, Ontario, Canada
| | - Robert Talarico
- ICES (formerly the Institute for Clinical Evaluative Sciences), Ottawa, Toronto, Ontario, Canada
| | - John F Hilton
- Department of Medicine, The Ottawa Hospital/University of Ottawa, Ottawa, Ontario, Canada
| | - Atul Malhotra
- Department of Medicine, the University of California, San Diego, California
| | - Andrea S Gershon
- ICES (formerly the Institute for Clinical Evaluative Sciences), Ottawa, Toronto, Ontario, Canada
- Department of Medicine, the University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Hurley S, Goldberg D, Von Behren J, Clague DeHart J, Wang S, Reynolds P. Sleep deficiency and breast cancer risk among postmenopausal women in the California teachers study (CTS). Cancer Causes Control 2020; 31:1115-1128. [PMID: 32981009 PMCID: PMC8519507 DOI: 10.1007/s10552-020-01349-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 09/16/2020] [Indexed: 11/15/2022]
Abstract
PURPOSE There is provocative, yet inconsistent, evidence that sleep deficiency may influence the development of breast cancer. The purpose of this study was to evaluate the risk of breast cancer associated with sleep deficiency among postmenopausal women in the California Teachers Study (CTS). METHODS We conducted a case-control study of 2,856 invasive breast cancer cases and 38,649 cancer-free controls, nested within the CTS. Self-administered questionnaires were used to ascertain several components of sleep deficiency, including quality, latency, duration, disturbance and use of sleep medications. Additionally, a Global Sleep Index (GSI) was created by summing the individual sleep components and categorizing into quartiles. Multivariable logistic regression analyses were used to estimate odds ratios and 95% confidence intervals (OR, 95% CI). RESULTS Increased breast cancer risks were associated with sleep deficiency. With the exception of duration, linear increases in risk were associated with all the other individual components of sleep deficiency (p-trend ≤ 0.002). The OR for the highest GSI quartile vs. lowest was 1.24, 95% CI 1.12-1.38; p-trend < 0.001). CONCLUSIONS Sleep deficiency may be a risk factor for breast cancer. Additional prospective studies and those aimed at elucidating underlying mechanism are warranted.
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Affiliation(s)
- S Hurley
- Department of Epidemiology and Biostatistics, University of California San Francisco, Berkeley, CA, USA.
| | - D Goldberg
- Department of Epidemiology and Biostatistics, University of California San Francisco, Berkeley, CA, USA
| | - J Von Behren
- Department of Epidemiology and Biostatistics, University of California San Francisco, Berkeley, CA, USA
| | - J Clague DeHart
- School of Community and Global Health, Claremont Graduate University, Claremont, CA, USA
| | - S Wang
- Division of Health Analytics, Department of Computational and Quantitative Medicine, City of Hope Comprehensive Cancer Center, Beckman Research Institute, Duarte, CA, USA
| | - P Reynolds
- Department of Epidemiology and Biostatistics, University of California San Francisco, Berkeley, CA, USA
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Abstract
PURPOSE OF REVIEW Obstructive sleep apnea (OSA) has been recognized as a risk factor for cancer mainly through hypoxia, based on studies that did not distinguish among cancer types. The purpose of this review is to discuss the most recent data on epidemiology and pathophysiology of the OSA-cancer association. RECENT FINDINGS According to epidemiological studies, OSA may have different influences on each type of cancer, either increasing or decreasing its incidence and aggressiveness. Time spent with oxygen saturation below 90% appears the polysomnographic variable most strongly associated with unfavorable effects on cancer. Experimental studies support the role of hypoxia as an important risk factor for cancer growth and aggressiveness, especially when it shows an intermittent pattern. These effects are largely mediated by the hypoxia-inducible factor, which controls the synthesis of molecules with effects on inflammation, immune surveillance and cell proliferation. Sleep fragmentation participates in increasing cancer risk. Modulating effects of age remain controversial. SUMMARY Effects of OSA on cancer may largely vary among neoplastic diseases, both in their magnitude and direction. The worse risk associated with intermittent rather than persistent hypoxia, and the effects of OSA therapy on cancer natural history are still poorly known, and deserve new careful studies.
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Brzecka A, Sarul K, Dyła T, Avila-Rodriguez M, Cabezas-Perez R, Chubarev VN, Minyaeva NN, Klochkov SG, Neganova ME, Mikhaleva LM, Somasundaram SG, Kirkland CE, Tarasov VV, Aliev G. The Association of Sleep Disorders, Obesity and Sleep-Related Hypoxia with Cancer. Curr Genomics 2020; 21:444-453. [PMID: 33093806 PMCID: PMC7536792 DOI: 10.2174/1389202921999200403151720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 07/31/2019] [Accepted: 03/16/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Sleep disorders have emerged as potential cancer risk factors. OBJECTIVE This review discusses the relationships between sleep, obesity, and breathing disorders with concomitant risks of developing cancer. RESULTS Sleep disorders result in abnormal expression of clock genes, decreased immunity, and melatonin release disruption. Therefore, these disorders may contribute to cancer development. Moreover, in sleep breathing disorder, which is frequently experienced by obese persons, the sufferer experiences intermittent hypoxia that may stimulate cancer cell proliferation. DISCUSSION During short- or long- duration sleep, sleep-wake rhythm disruption may occur. Insomnia and obstructive sleep apnea increase cancer risks. In short sleepers, an increased risk of stomach cancer, esophageal squamous cell cancer, and breast cancer was observed. Among long sleepers (>9 hours), the risk of some hematologic malignancies is elevated. CONCLUSION Several factors including insomnia, circadian disruption, obesity, and intermittent hypoxia in obstructive sleep apnea are contributing risk factors for increased risk of several types of cancers. However, further studies are needed to determine the more significant of these risk factors and their interactions.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Gjumrakch Aliev
- Address correspondence to this author at the GALLY International Research Institute, 7733 Louis Pasteur Drive, #330, San Antonio, TX, 78229, USA; Tel: +1(440) 263-7461; +7-964-493-1515; E-mails: and
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22
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Abstract
Sleep-disordered breathing (SDB) includes disorders of breathing that affect airway patency, which impair children's sleep and lead to negative consequences. Obstructive sleep apnea, hypoventilation and upper airway resistance syndrome are common causes of morbidity and mortality in childhood. These clinical practice guidelines, intended for use by pediatricians and primary care clinicians, provide a clear recommendation for the diagnosis and management of sleep-disordered breathing, focusing on the most serious disorder, obstructive sleep apnea syndrome (OSAS). These clinical guidelines formulate clear recommendations to identify patients with suspected OSAS. Further, the manuscript will highlight the potential consequences of SBD in children, and how to overcome such difficulties, what could be the therapeutic options, a 12 recommendations and what are the future direction for pediatric sleep medicine.
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Affiliation(s)
- Abdullah Al-Shamrani
- Pediatric Respiratory and Sleep Medicine, Pediatric Department, Prince Sultan Military Medical City, Riyadh, Kingdom of Saudi Arabia. E-mail.
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23
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Justeau G, Gervès-Pinquié C, Le Vaillant M, Trzepizur W, Meslier N, Goupil F, Pigeanne T, Launois S, Leclair-Visonneau L, Masson P, Bizieux-Thaminy A, Humeau MP, Gosselin C, Blanchard M, Urban T, Gagnadoux F. Association Between Nocturnal Hypoxemia and Cancer Incidence in Patients Investigated for OSA: Data From a Large Multicenter French Cohort. Chest 2020; 158:2610-2620. [PMID: 32629036 DOI: 10.1016/j.chest.2020.06.055] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previous studies have yielded inconsistent findings regarding the association between OSA and cancer in humans. RESEARCH QUESTION Is there an association between indexes of sleep-disordered breathing severity and cancer incidence in patients investigated for suspected OSA? STUDY DESIGN AND METHODS Data from a large multicenter cohort of cancer-free patients investigated for OSA were linked to health administrative data to identify new-onset cancer. Kaplan-Meier survival analysis and Cox proportional hazards models were used to evaluate the association of cancer incidence with OSA severity and nocturnal hypoxemia. RESULTS After a median follow-up period of 5.8 years (interquartile range, 3.8-7.8), 718 of 8,748 patients (8.2%) had received a diagnosis of cancer. On unadjusted Kaplan-Meier survival analyses, cancer incidence was associated with increasing severity of OSA (log-rank test, P < .0005) and nocturnal hypoxemia (log-rank test, P < .0001 for both oxygen desaturation index and percent night time with oxygen saturation < 90% [T90]). After adjustment for anthropomorphic data, smoking and alcohol consumption, comorbid cardiac, metabolic, and respiratory diseases, marital status, type of sleep study, and study site, only T90 was associated with cancer incidence (adjusted hazard ratio, 1.33; 95% CI, 1.05-1.68 for T90 ≥ 13% vs < 0.01%; P = .02). On stratified analyses, the association between T90 and cancer appeared stronger in older patients with obesity and no adequate OSA therapy. Among the most frequent cancer sites, nocturnal hypoxemia was associated with lung and breast malignancies. INTERPRETATION Nocturnal hypoxemia was associated with all-cancer incidence in patients investigated for OSA. Whether OSA therapy might reduce the risk of cancer needs further evaluation.
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Affiliation(s)
- Grégoire Justeau
- Department of Respiratory and Sleep Medicine, Angers University Hospital, Angers
| | | | - Marc Le Vaillant
- Pays de la Loire Respiratory Health Research Institute, Beaucouzé
| | - Wojciech Trzepizur
- Department of Respiratory and Sleep Medicine, Angers University Hospital, Angers; INSERM Unit 1063, Angers
| | - Nicole Meslier
- Department of Respiratory and Sleep Medicine, Angers University Hospital, Angers; INSERM Unit 1063, Angers
| | - François Goupil
- Department of Respiratory Diseases, Le Mans General Hospital, Le Mans
| | | | | | | | - Philippe Masson
- Department of Respiratory Diseases, Cholet General Hospital, Cholet
| | - Acya Bizieux-Thaminy
- Department of Respiratory Diseases, La Roche sur Yon General Hospital, La Roche sur Yon
| | | | | | | | - Thierry Urban
- Department of Respiratory and Sleep Medicine, Angers University Hospital, Angers
| | - Frédéric Gagnadoux
- Department of Respiratory and Sleep Medicine, Angers University Hospital, Angers; INSERM Unit 1063, Angers.
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Epidemiological characteristics of obstructive sleep apnea in a hospital-based historical cohort in Lebanon. PLoS One 2020; 15:e0231528. [PMID: 32413035 PMCID: PMC7228052 DOI: 10.1371/journal.pone.0231528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 03/26/2020] [Indexed: 11/29/2022] Open
Abstract
The objective of our study was to characterize and analyze the associations between OSA (obstructive sleep apnea) and other clinical variables in adult patients referred for sleep evaluation by polysomnography at a referral center in Beirut, Lebanon, in terms of sociodemographic features, symptoms presentation and comorbidities, and evaluate the burden of comorbidities associated with this disease. All individuals with suspected Sleep Apnea referred (January 2010-September 2017) for a one-night polysomnography were included. Demographics, self-reported symptoms and comorbidities were documented. The relationship between OSA severity and the presence of symptoms and comorbidities were evaluated using multivariate logistic regression. Overall, 663 subjects were assessed. Of these, 57.3% were referred from chest physicians, and sleep test results were abnormal in 589 subjects (88.8%) of whom 526 patients (89.3%) fulfilled diagnostic criteria for OSA; 76.3% were men and women were on average older. OSA was severe in 43.2% and more severe in men. Almost all patients were symptomatic with ~2–4 symptoms per patient and women presented with symptoms that are more atypical. Comorbidities were significantly higher in women. In the multivariate analysis, age, male sex, obesity, symptoms of snoring, excessive daytime somnolence and witnessed apneas were associated with OSA severity. Only age and obesity were associated with self-reported diagnosis of hypertension and diabetes. This is the first study in Lebanon to explore the characteristics of patients with polysomnography-diagnosed OSA. High prevalence of severe OSA and low referral rates in the medical community support promoting awareness for an earlier diagnosis and more personalized approach in this country.
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Sillah A, Faria F, Watson NF, Gozal D, Phipps AI. Five-year relative survival in sleep apnea patients with a subsequent cancer diagnosis. J Clin Sleep Med 2020; 16:667-673. [PMID: 32022671 DOI: 10.5664/jcsm.8312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
STUDY OBJECTIVES In vitro and animal studies suggest that intermittent hypoxia characterizing sleep apnea contributes to accelerated cancer progression. However, the impact of sleep apnea on survival subsequent to cancer diagnosis is unknown. METHODS We identified a cohort of 1,575 adults diagnosed with sleep apnea between 2005 and 2014 with a subsequent cancer diagnosis via linkage of the University of Washington Medicine system and a population-based cancer registry serving the same Seattle-Puget Sound region. We computed age-standardized 5-year relative survival after cancer diagnosis for all cancers combined, and for specific cancer sites, for both the sleep apnea cohort and the general Seattle-Puget Sound population, and we used US life tables as the reference population. Relative survival was estimated by sex, cancer stage, and health care engagement. RESULTS Five-year overall relative survival for cancer was more favorable in the sleep apnea cohort than in the general population [83.6%, 95% confidence interval (CI): 79.8%-86.8% vs 71.6%, 95% CI: 71.3%-71.9%]; this pattern was applicable to most specific cancer sites. However, 5-year relative survival was slightly less favorable in the sleep apnea cohort among patients with melanoma (97.7%, 95% CI: 84.6%-99.7% vs 99.2%, 95% CI: 98.8%-99.5%) and cancer of the corpus uteri (84.0%, 95% CI: 58.2%-94.5% vs 84.6%, 95% CI: 83.1%-86.0%). CONCLUSIONS The fact that survival after cancer, overall and for most cancer sites, was more favorable in patients with sleep apnea warrants larger community-based studies to further tease out effects of sleep apnea and treatment on site-specific survival for different cancer types, particularly in patients with melanoma or uterine cancer.
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Affiliation(s)
- Arthur Sillah
- Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington.,Epidemiology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Faiza Faria
- Institute of Public Health Genetics, University of Washington School of Public Health, Seattle, Washington
| | - Nathaniel F Watson
- University of Washington School of Medicine, Department of Neurology and University of Washington Sleep Medicine Center, Seattle, Washington
| | - David Gozal
- Department of Child Health, University of Missouri School of Medicine, Columbia, Missouri
| | - Amanda I Phipps
- Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington.,Epidemiology Program, Fred Hutchinson Cancer Research Center, Seattle, Washington
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Obstructive sleep apnea syndrome and causal relationship with female breast cancer: a mendelian randomization study. Aging (Albany NY) 2020; 12:4082-4092. [PMID: 32112550 PMCID: PMC7093176 DOI: 10.18632/aging.102725] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 01/02/2020] [Indexed: 12/14/2022]
Abstract
Although observational studies have reported a positive association between obstructive sleep apnea syndrome (OSAS) and breast cancer (BC) risk, causality remains inconclusive. We aim to explore whether OSAS is associated with etiology of BC by conducting a two-sample Mendelian randomization (MR) study in a Chinese population and Asian population from the Breast Cancer Association Consortium (BCAC). We found a detrimental causal effect of OSAS on BC risk in the primary analysis of our samples (IVW OR, 2.47 for BC risk per log-odds increment in OSAS risk, 95% CI = 1.86-3.27; P = 3.6×10-10). This was very similar to results of the direct observational case-control study between OSAS and BC risk (OR = 2.80; 95% CI = 2.24-3.50; P =1.4×10-19). Replication in the Asian population of the BCAC study also supported our results (IVW OR, 1.33 for BC risk per log-odds increment in OSAS risk, 95% CI = 1.13-1.56; P = 0.0006). Sensitivity analyses confirmed the robustness of our findings. We provide novel evidence that genetically determined higher risk of OSAS has a causal effect on higher risk of BC. Further studies focused on the mechanisms of the relationship between OSAS and breast carcinogenesis are needed.
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