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Shiina K. Obstructive sleep apnea -related hypertension: a review of the literature and clinical management strategy. Hypertens Res 2024:10.1038/s41440-024-01852-y. [PMID: 39210083 DOI: 10.1038/s41440-024-01852-y] [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: 03/07/2024] [Revised: 07/24/2024] [Accepted: 07/30/2024] [Indexed: 09/04/2024]
Abstract
Obstructive Sleep Apnea (OSA) and hypertension have a high rate of co-occurrence, with OSA being a causative factor for hypertension. Sympathetic activity due to intermittent hypoxia and/or fragmented sleep is the most important mechanisms triggering the elevation in blood pressure in OSA. OSA-related hypertension is characterized by resistant hypertension, nocturnal hypertension, abnormal blood pressure variability, and vascular remodeling. In particular, the prevalence of OSA is high in patients with resistant hypertension, and the mechanism proposed includes vascular remodeling due to the exacerbation of arterial stiffness by OSA. Continuous positive airway pressure therapy is effective at lowering blood pressure, however, the magnitude of the decrease in blood pressure is relatively modest, therefore, patients often need to also take antihypertensive medications to achieve optimal blood pressure control. Antihypertensive medications targeting sympathetic pathways or the renin-angiotensin-aldosterone system have theoretical potential in OSA-related hypertension, Therefore, beta-blockers and renin-angiotensin system inhibitors may be effective in the management of OSA-related hypertension, but current evidence is limited. The characteristics of OSA-related hypertension, such as nocturnal hypertension and obesity-related hypertension, suggests potential for angiotensin receptor-neprilysin inhibitor (ARNI), sodium-glucose cotransporter 2 inhibitors (SGLT2i) and glucose-dependent insulinotropic polypeptide receptor/ glucagon-like peptide-1 receptor agonist (GIP/GLP-1 RA). Recently, OSA has been considered to be caused not only by upper airway anatomy but also by several non-anatomic mechanisms, such as responsiveness of the upper airway response, ventilatory control instability, and reduced sleep arousal threshold. Elucidating the phenotypic mechanisms of OSA may potentially advance more personalized hypertension treatment strategies in the future. Clinical characteristics and management strategy of OSA-related hypertension. OSA obstructive sleep apnea, BP blood pressure, ABPM ambulatory blood pressure monitoring, CPAP continuous positive airway pressure, LVH left ventricular hypertrophy, ARB: angiotensin II receptor blocker, SGLT2i Sodium-glucose cotransporter 2 inhibitors, ARNI angiotensin receptor-neprilysin inhibitor, CCB calcium channel blocker, GIP/GLP-1 RA glucose-dependent insulinotropic polypeptide receptor and glucagon-like peptide-1 receptor agonist.
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Affiliation(s)
- Kazuki Shiina
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan.
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2
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Fujita Y, Yamauchi M, Muro S. Assessment and management of continuous positive airway pressure therapy in patient with obstructive sleep apnea. Respir Investig 2024; 62:645-650. [PMID: 38759606 DOI: 10.1016/j.resinv.2024.05.004] [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: 12/27/2023] [Revised: 04/18/2024] [Accepted: 05/09/2024] [Indexed: 05/19/2024]
Abstract
Obstructive sleep apnea (OSA) causes excessive daytime sleepiness, impaired daytime functioning, and an increased risk of cardiovascular diseases. Continuous positive airway pressure (CPAP) is a highly effective therapy for moderate to severe OSA. Although CPAP adherence is commonly assessed using a 4-hthreshold, determining the optimal usage time based on clinical outcomes is crucial. While subjective sleepiness often improves with ≥4 h of CPAP usage, an extended duration (≥6 h) may be necessary to impact objective sleepiness. CPAP demonstrated a modest yet clinically meaningful dose-dependent effect on lowering blood pressure. For patients seeking antihypertensive benefits from CPAP therapy, the goal should extend beyond 4 h of use to maximize the therapeutic impact. Recognizing individual variations in sleep duration and responses to CPAP therapy is essential. The adoption of 'individualized goals for CPAP use,' outlining target times for specific outcomes, should also consider an individual's total sleep duration, including periods without CPAP. The impact of CPAP on clinical outcomes may vary, even with the same duration of CPAP use, depending on the period without CPAP use, particularly during the first or second half of sleep. Patients who remove or initiate CPAP midway or have a low CPAP usage frequency may require different forms of guidance. Tailoring patient education to address CPAP usage patterns may be necessary to enhanced satisfaction, self-efficacy, and adherence to therapy. Management of CPAP treatment should be personalized to meet individual needs and adapted based on specific response patterns for achieving treatment efficacy.
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Affiliation(s)
- Yukio Fujita
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan.
| | - Motoo Yamauchi
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan; Department of Clinical Pathophysiology of Nursing, Nara Medical University, Kashihara, Nara, 634-8522, Japan
| | - Shigeo Muro
- Department of Respiratory Medicine, Nara Medical University, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
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Nagai M, Dote K, Park S, Turana Y, Buranakitjaroen P, Cheng HM, Soenarta AA, Li Y, Kario K. Obstructive sleep apnea and non-dipper: epiphenomena or risks of Alzheimer's disease?: a review from the HOPE Asia Network. Hypertens Res 2024; 47:271-280. [PMID: 37875673 DOI: 10.1038/s41440-023-01440-6] [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: 03/26/2023] [Revised: 08/09/2023] [Accepted: 09/05/2023] [Indexed: 10/26/2023]
Abstract
Obstructive sleep apnea (OSA) and associated nocturnal blood pressure (BP) surges is associated with non-dipper. On the other hand, the relationship between neurodegenerative diseases and non-dipper hypertension has been reported. To date, few studies have evaluated the relationships of nocturnal BP dipping patterns and OSA in relation to neurodegenerative diseases, particularly Alzheimer's disease (AD). This review examines the etiology of the association between OSA and the non-dipper pattern of hypertension and how both are involved in the development of AD. To set the stage for this review, we first focus on the pathophysiology of AD, which is interrelated with sleep apnea and non-dipper through dysregulation of central autonomic network.
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Affiliation(s)
- Michiaki Nagai
- Cardiovascular Section, Department of Internal Medicine, Heart Rhythm Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
- Department of Cardiology, Hiroshima City Asa Hospital, Hiroshima, Japan.
| | - Keigo Dote
- Department of Cardiology, Hiroshima City Asa Hospital, Hiroshima, Japan
| | - Sungha Park
- Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea
| | - Yuda Turana
- Department of Neurology, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta, Indonesia
| | - Peera Buranakitjaroen
- Division of Hypertension, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Hao-Min Cheng
- Institute of Public Health and Community Medicine Research Center, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Ph.D. Program of Interdisciplinary Medicine (PIM), National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
- Department of Medical Education, Center for Evidence-Based Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Arieska Ann Soenarta
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, University of Indonesia, National Cardiovascular Center, Harapan Kita, Jakarta, Indonesia
| | - Yan Li
- Department of Cardiovascular Medicine, Shanghai Institute of Hypertension Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Kazuomi Kario
- Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan
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Tang A, Yang E, Ebinger JE. Non-Dipping Blood Pressure or Nocturnal Hypertension: Does One Matter More? Curr Hypertens Rep 2024; 26:21-30. [PMID: 37955827 PMCID: PMC10796526 DOI: 10.1007/s11906-023-01273-1] [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] [Accepted: 09/19/2023] [Indexed: 11/14/2023]
Abstract
PURPOSE OF REVIEW Nocturnal hypertension and non-dipping are both associated with increased cardiovascular risk; however, debate remains over which is a better prognosticator of cardiovascular outcomes. This review explores current literature on nocturnal hypertension and non-dipping to assess their relationship to cardiovascular disease and implications for clinical practice. RECENT FINDINGS While current data remain inconclusive, some suggest that nocturnal hypertension is a more reliable and clinically significant marker of cardiovascular risk than non-dipping status. Importantly, reducing nocturnal HTN and non-dipping through chronotherapy, specifically evening dosing of antihypertensives, has not been conclusively shown to provide long-term cardiovascular benefits. Recent data suggests that non-dipping, compared to nocturnal hypertension, may be falling out of favor as a prognostic indicator for adverse cardiovascular outcomes. However, additional information is needed to understand how aberrant nighttime blood pressure patterns modulate cardiovascular risk to guide clinical management.
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Affiliation(s)
- Amber Tang
- Department of Medicine, University of California, Los Angeles, CA, USA
| | - Eugene Yang
- Division of Cardiology, University of Washington School of Medicine, Seattle, WA, USA
| | - Joseph E Ebinger
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Park S, Ihm SH, Cho IJ, Kim DH, Park JH, Chung WB, Choi S, Lee HY, Kim HC, Sohn IS, Lee EM, Kim JH, Kim KI, Cho EJ, Sung KC, Shin J, Pyun WB. Statement on chronotherapy for the treatment of hypertension: consensus document from the Korean society of hypertension. Clin Hypertens 2023; 29:25. [PMID: 37653547 PMCID: PMC10472721 DOI: 10.1186/s40885-023-00249-2] [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: 05/16/2023] [Accepted: 08/11/2023] [Indexed: 09/02/2023] Open
Abstract
Nocturnal blood pressure (BP) has been shown to have a significant predictive value for cardiovascular disease. In some cases, it has a superior predictive value for future cardiovascular outcomes than daytime BP. As efficacy of BP medications wanes during nighttime and early morning, control of nocturnal hypertension and morning hypertension can be difficult. As such, chronotherapy, the dosing of BP medication in the evening, has been an ongoing topic of interest in the field of hypertension. Some studies have shown that chronotherapy is effective in reducing nocturnal BP, improving non dipping and rising patterns to dipping patterns, and improving cardiovascular prognosis. However, criticism and concerns have been raised regarding the design of these studies, such as the Hygia study, and the implausible clinical benefits in cardiovascular outcomes considering the degree of BP lowering from bedtime dosing. Studies have shown that there is no consistent evidence to suggest that routine administration of antihypertensive medications at bedtime can improve nocturnal BP and early morning BP control. However, in some cases of uncontrolled nocturnal hypertension and morning hypertension, such as in those with diabetes mellitus, chronic kidney disease, and obstructive sleep apnea, bedtime dosing has shown efficacy in reducing evening and early morning BP. The recently published the Treatment in Morning versus Evening (TIME) study failed to demonstrate benefit of bedtime dosing in reducing cardiovascular outcomes in patients with hypertension. With issues of the Hygia study and negative results from the TIME study, it is unclear at this time whether routine bedtime dosing is beneficial for reducing cardiovascular outcomes.
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Affiliation(s)
- Sungha Park
- Division of Cardiology, Severance Cardiovascular Hospital, Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang-Hyun Ihm
- Division of cardiology, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea & Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
- Division of Cardiology, Department of Internal Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Korea.
| | - In-Jeong Cho
- Division of Cardiology, Department of Internal Medicine, Ewha Womans University Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Korea
| | - Dae-Hee Kim
- Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Hyeong Park
- Department of Cardiology in Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Korea
| | - Woo-Baek Chung
- Division of Cardiology, Department of Internal Medicine, Seoul St Mary's Hospital, The Catholic University, Seoul, South Korea
| | - Seonghoon Choi
- Cardiology, Department of Internal Medicine, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Hae Young Lee
- Division of Cardiology, Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Hyeon Chang Kim
- Department of Preventive Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Il Suk Sohn
- Department of Cardiology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Eun Mi Lee
- Division of Cardiology, Department of Internal Medicine, Wonkwang University Sanbon Hospital, Gunpo, Gyeonggi-do, Republic of Korea
| | - Ju Han Kim
- Department of Cardiology, Chonnam National University Hospital, Gwangju, Korea
| | - Kwang-Il Kim
- Department of Internal Medicine, Director of Geriatric center, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam-Si, Gyeonggi-Do, Korea
| | - Eun Joo Cho
- Division of Cardiology, Department of Internal Medicine, Yeouido St. Mary's Hospital, The Catholic University College of Medicine, Seoul, Korea
| | - Ki-Chul Sung
- Division of Cardiology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jinho Shin
- Division of Cardiology, Department of Internal Medicine, Hanyang University Seoul Hospital, Seoul, Korea
| | - Wook Bum Pyun
- Division of cardiology, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Republic of Korea & Catholic Research Institute for Intractable Cardiovascular Disease, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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6
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Chang JL, Goldberg AN, Alt JA, Alzoubaidi M, Ashbrook L, Auckley D, Ayappa I, Bakhtiar H, Barrera JE, Bartley BL, Billings ME, Boon MS, Bosschieter P, Braverman I, Brodie K, Cabrera-Muffly C, Caesar R, Cahali MB, Cai Y, Cao M, Capasso R, Caples SM, Chahine LM, Chang CP, Chang KW, Chaudhary N, Cheong CSJ, Chowdhuri S, Cistulli PA, Claman D, Collen J, Coughlin KC, Creamer J, Davis EM, Dupuy-McCauley KL, Durr ML, Dutt M, Ali ME, Elkassabany NM, Epstein LJ, Fiala JA, Freedman N, Gill K, Boyd Gillespie M, Golisch L, Gooneratne N, Gottlieb DJ, Green KK, Gulati A, Gurubhagavatula I, Hayward N, Hoff PT, Hoffmann OM, Holfinger SJ, Hsia J, Huntley C, Huoh KC, Huyett P, Inala S, Ishman SL, Jella TK, Jobanputra AM, Johnson AP, Junna MR, Kado JT, Kaffenberger TM, Kapur VK, Kezirian EJ, Khan M, Kirsch DB, Kominsky A, Kryger M, Krystal AD, Kushida CA, Kuzniar TJ, Lam DJ, Lettieri CJ, Lim DC, Lin HC, Liu SY, MacKay SG, Magalang UJ, Malhotra A, Mansukhani MP, Maurer JT, May AM, Mitchell RB, Mokhlesi B, Mullins AE, Nada EM, Naik S, Nokes B, Olson MD, Pack AI, Pang EB, Pang KP, Patil SP, Van de Perck E, Piccirillo JF, Pien GW, Piper AJ, Plawecki A, Quigg M, Ravesloot MJ, Redline S, Rotenberg BW, Ryden A, Sarmiento KF, Sbeih F, Schell AE, Schmickl CN, Schotland HM, Schwab RJ, Seo J, Shah N, Shelgikar AV, Shochat I, Soose RJ, Steele TO, Stephens E, Stepnowsky C, Strohl KP, Sutherland K, Suurna MV, Thaler E, Thapa S, Vanderveken OM, de Vries N, Weaver EM, Weir ID, Wolfe LF, Tucker Woodson B, Won CH, Xu J, Yalamanchi P, Yaremchuk K, Yeghiazarians Y, Yu JL, Zeidler M, Rosen IM. International Consensus Statement on Obstructive Sleep Apnea. Int Forum Allergy Rhinol 2023; 13:1061-1482. [PMID: 36068685 PMCID: PMC10359192 DOI: 10.1002/alr.23079] [Citation(s) in RCA: 62] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND Evaluation and interpretation of the literature on obstructive sleep apnea (OSA) allows for consolidation and determination of the key factors important for clinical management of the adult OSA patient. Toward this goal, an international collaborative of multidisciplinary experts in sleep apnea evaluation and treatment have produced the International Consensus statement on Obstructive Sleep Apnea (ICS:OSA). METHODS Using previously defined methodology, focal topics in OSA were assigned as literature review (LR), evidence-based review (EBR), or evidence-based review with recommendations (EBR-R) formats. Each topic incorporated the available and relevant evidence which was summarized and graded on study quality. Each topic and section underwent iterative review and the ICS:OSA was created and reviewed by all authors for consensus. RESULTS The ICS:OSA addresses OSA syndrome definitions, pathophysiology, epidemiology, risk factors for disease, screening methods, diagnostic testing types, multiple treatment modalities, and effects of OSA treatment on multiple OSA-associated comorbidities. Specific focus on outcomes with positive airway pressure (PAP) and surgical treatments were evaluated. CONCLUSION This review of the literature consolidates the available knowledge and identifies the limitations of the current evidence on OSA. This effort aims to create a resource for OSA evidence-based practice and identify future research needs. Knowledge gaps and research opportunities include improving the metrics of OSA disease, determining the optimal OSA screening paradigms, developing strategies for PAP adherence and longitudinal care, enhancing selection of PAP alternatives and surgery, understanding health risk outcomes, and translating evidence into individualized approaches to therapy.
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Affiliation(s)
- Jolie L. Chang
- University of California, San Francisco, California, USA
| | | | | | | | - Liza Ashbrook
- University of California, San Francisco, California, USA
| | | | - Indu Ayappa
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | | | | | - Maurits S. Boon
- Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Pien Bosschieter
- Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Itzhak Braverman
- Hillel Yaffe Medical Center, Hadera Technion, Faculty of Medicine, Hadera, Israel
| | - Kara Brodie
- University of California, San Francisco, California, USA
| | | | - Ray Caesar
- Stone Oak Orthodontics, San Antonio, Texas, USA
| | | | - Yi Cai
- University of California, San Francisco, California, USA
| | | | | | | | | | | | | | | | | | - Susmita Chowdhuri
- Wayne State University and John D. Dingell VA Medical Center, Detroit, Michigan, USA
| | - Peter A. Cistulli
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - David Claman
- University of California, San Francisco, California, USA
| | - Jacob Collen
- Uniformed Services University, Bethesda, Maryland, USA
| | | | | | - Eric M. Davis
- University of Virginia, Charlottesville, Virginia, USA
| | | | | | - Mohan Dutt
- University of Michigan, Ann Arbor, Michigan, USA
| | - Mazen El Ali
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | - Kirat Gill
- Stanford University, Palo Alto, California, USA
| | | | - Lea Golisch
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | | | | | | | - Arushi Gulati
- University of California, San Francisco, California, USA
| | | | | | - Paul T. Hoff
- University of Michigan, Ann Arbor, Michigan, USA
| | - Oliver M.G. Hoffmann
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | | | - Jennifer Hsia
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Colin Huntley
- Sidney Kimmel Medical Center at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | | | - Sanjana Inala
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | | | | | | | | | | | | | | | - Meena Khan
- Ohio State University, Columbus, Ohio, USA
| | | | - Alan Kominsky
- Cleveland Clinic Head and Neck Institute, Cleveland, Ohio, USA
| | - Meir Kryger
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | | | | | - Derek J. Lam
- Oregon Health and Science University, Portland, Oregon, USA
| | | | | | | | | | | | | | - Atul Malhotra
- University of California, San Diego, California, USA
| | | | - Joachim T. Maurer
- University Hospital Mannheim, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Anna M. May
- Case Western Reserve University, Cleveland, Ohio, USA
| | - Ron B. Mitchell
- University of Texas, Southwestern and Children’s Medical Center Dallas, Texas, USA
| | | | | | | | | | - Brandon Nokes
- University of California, San Diego, California, USA
| | | | - Allan I. Pack
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | - Mark Quigg
- University of Virginia, Charlottesville, Virginia, USA
| | | | - Susan Redline
- Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Armand Ryden
- Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, USA
| | | | - Firas Sbeih
- Cleveland Clinic Head and Neck Institute, Cleveland, Ohio, USA
| | | | | | | | | | - Jiyeon Seo
- University of California, Los Angeles, California, USA
| | - Neomi Shah
- Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | | | - Ryan J. Soose
- University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Erika Stephens
- University of California, San Francisco, California, USA
| | | | | | | | | | - Erica Thaler
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sritika Thapa
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | - Nico de Vries
- Academic Centre for Dentistry Amsterdam, Amsterdam, The Netherlands
| | | | - Ian D. Weir
- Yale School of Medicine, New Haven, Connecticut, USA
| | | | | | | | - Josie Xu
- University of Toronto, Ontario, Canada
| | | | | | | | | | | | - Ilene M. Rosen
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Altay S, Fırat S, Peker Y. A Narrative Review of the Association of Obstructive Sleep Apnea with Hypertension: How to Treat Both When They Coexist? J Clin Med 2023; 12:4144. [PMID: 37373837 DOI: 10.3390/jcm12124144] [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: 05/14/2023] [Revised: 06/07/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Hypertension (HT) is a worldwide public health issue and an essential risk factor for cardiovascular and cerebrovascular diseases. Obstructive sleep apnea (OSA) is a condition characterized by recurrent episodes of apnea and hypopnea as a consequence of partial or complete obstruction of the upper airways due to anatomic and/or functional disturbances. There is mounting evidence of a relationship between OSA and HT. In patients with OSA, HT is predominantly nocturnal and characterized by high diastolic blood pressure and usually by a nondipping pattern. Optimizing the blood pressure control is recommended in the current guidelines as the first treatment option in hypertensive patients with OSA. Continuous positive airway pressure (CPAP) therapy may reduce blood pressure, albeit only slightly as a stand-alone treatment. CPAP, as an add-on treatment to antihypertensive medication, appears to be an efficient treatment modality when both conditions coexist. This narrative review aims to summarize the current perspectives on the association of OSA with HT and the treatment options available for adults with OSA-related HT.
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Affiliation(s)
- Servet Altay
- Department of Cardiology, Trakya University School of Medicine, Edirne 22030, Turkey
| | - Selma Fırat
- Department of Pulmonary Medicine, University of Health Sciences, Atatürk Sanatorium Education and Research Hospital, Ankara 06280, Turkey
| | - Yüksel Peker
- Department of Pulmonary Medicine, Koç University School of Medicine, Istanbul 34450, Turkey
- Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Boston, MA 02115, USA
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
- Department of Clinical Sciences, Respiratory Medicine and Allergology, Faculty of Medicine, Lund University, 22002 Lund, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden
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8
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Huart J, Persu A, Lengelé JP, Krzesinski JM, Jouret F, Stergiou GS. Pathophysiology of the Nondipping Blood Pressure Pattern. Hypertension 2023; 80:719-729. [PMID: 36606502 DOI: 10.1161/hypertensionaha.122.19996] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The nondipping blood pressure (BP) pattern corresponds to a disruption in the circadian BP rhythm with an insufficient decrease in BP levels during nighttime sleep as observed using 24-hour ambulatory BP monitoring. Patients with nondipping BP pattern have poorer renal and cardiovascular outcomes, independent of their average 24-hour BP levels. The pathophysiology of nondipping BP is complex and involves numerous mechanisms: perturbations of (1) the circadian rhythm, (2) the autonomic nervous system, and (3) water and sodium regulation. This review provides an outline of the pathways potentially involved in the nondipping BP profile in different conditions. A recent hypothesis is also discussed involving the role of gut microbiota in the dipping/nondipping patterns, via the fecal diet-derived short chain fatty acids.
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Affiliation(s)
- Justine Huart
- Division of Nephrology, University of Liège Hospital (ULiège CHU), University of Liège, Belgium (J.H., J.-M.K., F.J.).,Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège, Belgium (J.H., J.-M.K., F.J.)
| | - Alexandre Persu
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires Saint-Luc and Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium (A.P., J.-P.L.)
| | - Jean-Philippe Lengelé
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires Saint-Luc and Pole of Cardiovascular Research, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium (A.P., J.-P.L.).,Department of Nephrology, Grand Hôpital de Charleroi, Gilly, Belgium (J.-P.L.)
| | - Jean-Marie Krzesinski
- Division of Nephrology, University of Liège Hospital (ULiège CHU), University of Liège, Belgium (J.H., J.-M.K., F.J.).,Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège, Belgium (J.H., J.-M.K., F.J.)
| | - François Jouret
- Division of Nephrology, University of Liège Hospital (ULiège CHU), University of Liège, Belgium (J.H., J.-M.K., F.J.).,Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), Cardiovascular Sciences, University of Liège, Belgium (J.H., J.-M.K., F.J.)
| | - George S Stergiou
- Hypertension Center STRIDE-7, National and Kapodistrian University of Athens, School of Medicine, Third Department of Medicine, Sotiria Hospital, Athens, Greece (G.S.S.)
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9
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Ohira A, Yamakawa T, Iwahashi N, Tanaka S, Sugiyama M, Harada M, Ichikawa M, Akiyama T, Orime K, Terauchi Y. Association of continuous positive airway pressure therapy on cardiac hypertrophy in patients with sleep apnea comorbid with type 2 diabetes mellitus. Endocr J 2023; 70:47-58. [PMID: 36089339 DOI: 10.1507/endocrj.ej22-0308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Previous reports indicated the therapeutic effect of chronic continuous positive airway pressure (CPAP) therapy on cardiac hypertrophy due to sleep apnea syndrome. However, little is known for cases involving diabetic complications. This retrospective observational study examined the effects of CPAP therapy on left ventricular hypertrophy (LVH) in patients with obstructive sleep apnea syndrome (OSAS) and type 2 diabetes mellitus (T2DM). For all cases, the observation period was 3 years from the time when the patient was introduced to CPAP therapy. Overall, 123 patients were divided into a good CPAP group (CPAP ≥4 h/day, n = 63) and non-adherence group (CPAP <4 h/day, n = 60). The mean CPAP usage times were 5.58 ± 1.23 and 1.03 ± 1.17 h/day in the good CPAP and non-adherence groups, respectively. Regression tendencies of the thickness of the left ventricular posterior (-0.30 ± 1.19 mm) and interventricular septal walls (-0.48 ± 1.22 mm) were observed in the good CPAP group. Hypertrophic tendencies of the left ventricular posterior wall (+0.59 ± 1.44 mm) and interventricular septal wall thickness (+0.59 ± 1.43) were observed in the non-adherence group. Left ventricular posterior wall thickness (coefficient: -0.254, p = 0.0376) and interventricular septal wall thickness (coefficient: -0.426, p = 0.0006) were more likely to be greater in the non-adherence group than in the good CPAP group. Patients in the non-adherence group with an apnea hypopnea index ≥30 had increased left ventricular posterior wall thickness (coefficient: -0.263, p = 0.0673) and interventricular septal wall thickness (coefficient: -0.450, p = 0.0011). In conclusion, appropriate CPAP therapy is an effective treatment for LVH in patients with T2DM and OSAS, especially for severe cases.
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Affiliation(s)
- Akeo Ohira
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Tadashi Yamakawa
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Noriaki Iwahashi
- Division of Cardiology, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | | | - Mai Sugiyama
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Marina Harada
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Masahiro Ichikawa
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Tomoaki Akiyama
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Kazuki Orime
- Department of Endocrinology and Diabetes, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Yasuo Terauchi
- Department of Endocrinology and Metabolism, Yokohama City University School of Medicine, Yokohama 236-0004, Japan
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10
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Gibson M, Yiallourou S, Pase MP. The Association Between 24-Hour Blood Pressure Profiles and Dementia. J Alzheimers Dis 2023; 94:1303-1322. [PMID: 37458039 DOI: 10.3233/jad-230400] [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: 07/18/2023]
Abstract
Midlife hypertension increases risk for dementia. Around one third of adults have diagnosed hypertension; however, many adults are undiagnosed, or remain hypertensive despite diagnosis or treatment. Since blood pressure (BP) follows a circadian rhythm, ambulatory BP monitoring allows for the assessment of BP over a 24-hour period and provides an important tool for improving the diagnosis and management of hypertension. The measurement of 24-hour BP profiles, especially nocturnal BP, demonstrate better predictive ability for cardiovascular disease and mortality than office measurement. However, few studies have examined 24-hour BP profiles with respect to dementia risk. This is an important topic since improvements in BP management could facilitate the primary prevention of vascular cognitive impairment and dementia. Therefore, this review discusses the evidence linking BP to dementia, with a focus on whether the implementation of 24-hour BP measurements can improve risk prediction and prevention strategies. Pathways linking nocturnal BP to dementia are also discussed as are risk reduction strategies. Overall, limited research suggests an association between 24-hour BP elevation and poorer cognition, cerebral small vessel disease, and dementia. However, most studies were cross-sectional. Further evidence is needed to substantiate 24-hour BP profiles, over and above office BP, as predictors of vascular cognitive impairment and incident dementia.
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Affiliation(s)
- Madeline Gibson
- The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Stephanie Yiallourou
- The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
| | - Matthew P Pase
- The Turner Institute for Brain and Mental Health, Monash University, Clayton, VIC, Australia
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
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11
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Bisogni V, Maiolino G, Pengo MF. Editorial: Sleep disorders, hypertension and cardiovascular diseases. Front Cardiovasc Med 2022; 9:1110487. [PMID: 36601068 PMCID: PMC9806424 DOI: 10.3389/fcvm.2022.1110487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Affiliation(s)
- Valeria Bisogni
- Unit of Internal Medicine, Terni University Hospital, Terni, Italy,*Correspondence: Valeria Bisogni ✉
| | - Giuseppe Maiolino
- Clinica Medica 3, Department of Medicine – DIMED, University of Padua, Padua, Italy
| | - Martino F. Pengo
- Department of Cardiovascular, Neural and Metabolic Sciences, IRCCS Istituto Auxologico Italiano, Milan, Italy,Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
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12
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Pengo MF, Gozal D, Martinez-Garcia MA. Should we treat with continuous positive airway pressure severe non-sleepy obstructive sleep apnea individuals without underlying cardiovascular disease? Sleep 2022; 45:6677982. [PMID: 36029295 DOI: 10.1093/sleep/zsac208] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/12/2022] [Indexed: 12/14/2022] Open
Abstract
The majority of the current international obstructive sleep apnea (OSA) guidelines base the recommendation to treat OSA with continuous positive airway pressure (CPAP) on the presence of symptoms (principally, albeit not exclusively on daytime hypersomnolence). In nonsleepy patients, even with severe OSA, controversies remain, as clear evidence supporting CPAP treatment of this subgroup of OSA patients is lacking. However, given the nonnegligible proportion of non-sleepy OSA patients, clinicians often face a serious dilemma since CPAP treatment in these patients may prove to be not cost-effective. Here, we propose a simple three-step-based algorithm that attempts to better phenotype non-sleepy OSA patients prior to reaching a CPAP treatment decision while also considering a series of clinically relevant elements in the process that may improve with CPAP therapy. Such algorithm focuses on the presence of several OSA symptoms that are susceptible to benefit from treatment and also relies on OSA phenotypes that need to be considered in an effort to achieve optimal cardiovascular prevention. Here, we attempt to establish a framework for clinicians who are evaluating severe nonsleepy OSA patients in their practices. However, the algorithm proposal needs to be extensively validated before being systematically implemented in clinical settings.
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Affiliation(s)
| | - David Gozal
- Department of Child Health and Child Health Research Institute, University of Missouri School of Medicine, Columbia, MO, USA.,Department of Medical Pharmacology and Physiology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Miguel Angel Martinez-Garcia
- Respiratory Department, Hospital Universitario y Politécnico La Fe, Valencia, Spain.,Centro de Investigación Biomédica en Red (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
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13
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Forshaw PE, Correia ATL, Roden LC, Lambert EV, Rae DE. Sleep characteristics associated with nocturnal blood pressure nondipping in healthy individuals: a systematic review. Blood Press Monit 2022; 27:357-370. [PMID: 36094364 DOI: 10.1097/mbp.0000000000000619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The current literature investigating nocturnal blood pressure (BP) nondipping has largely focused on clinical populations, however, conditions such as hypertension, obstructive sleep apnoea and insomnia are recognized confounding factors for BP dipping. The exact mechanisms responsible for BP nondipping remain unclear, therefore, there is a need to investigate BP nondipping in healthy individuals to better understand the underlying mechanisms. This review identifies sleep characteristics that may contribute to BP nondipping in healthy individuals. It is anticipated that an understanding of the sleep characteristics that contribute to BP nondipping may inform future sleep-related behavioral interventions to ultimately reducing the burden of cardiovascular disease. METHODS The PubMed, Scopus and Web of Science databases were searched for relevant, English language, peer-reviewed publications (from inception to March 2022). The search identified 550 studies. After duplicates were removed, the titles and abstracts of the remaining 306 studies were screened. Of these, 250 studies were excluded leaving 56 studies to test for eligibility. Thirty-nine studies were excluded such that 17 studies fully met the inclusion criteria for the review. RESULTS Findings from this review indicate that short sleep duration, more sleep fragmentation, less sleep depth and increased variability in sleep timing may be associated with BP nondipping in healthy individuals. CONCLUSION While there is no evidence-based approach for the treatment of nocturnal BP nondipping, it seems promising that addressing one's sleep health may be an important starting point to reduce the prevalence of BP nondipping and perhaps the progression to cardiovascular disease.
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Affiliation(s)
- Philippa Eileen Forshaw
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Arron Taylor Lund Correia
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Laura Catherine Roden
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
- Centre for Sport, Exercise and Life Sciences, School of Life Sciences, Faculty of Health and Life Sciences, Coventry University, United Kingdom
| | - Estelle Victoria Lambert
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Dale Elizabeth Rae
- Health through Physical Activity Lifestyle and Sport Research Centre & Division of Physiological Sciences, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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14
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Assessment of hypertension in obstructive sleep apnea by ambulatory blood pressure monitoring: a systematic review and meta-analysis. Blood Press Monit 2022; 27:285-296. [PMID: 35866496 DOI: 10.1097/mbp.0000000000000613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Among obstructive sleep apnea (OSA) patients, there exists a high prevalence of hypertension. Determining the optimal blood pressure (BP) monitoring modality in this population will lead to a better understanding of hypertension profiles and a more accurate diagnosis of hypertension. PubMed, Ovid/Medline, Web of Science, Scopus, Cochrane Library, and CINAHL databases were screened, and the relevant articles regarding BP monitoring in OSA patient population were selected. Studies evaluating both ambulatory (ABPM) and office BP measurements were selected to be analyzed for the hypertension diagnosis specificity of ABPM measurement in OSA patients compared with office measurements. If reported, additional information regarding white-coat, masked hypertension, and circadian BP pattern prevalence was included. A cumulative analysis of five studies revealed a prevalence of hypertension based on BP to be 44%, whereas a cumulative analysis of four studies revealed a prevalence of hypertension based on ABPM to be 66%. Excluding a study with the nighttime assessment of hypertension reduced the cumulative prevalence of hypertension in OSA patients to 59%. The cumulative prevalence of Studies demonstrated the prevalence of masked and white-coat hypertension to be 34 and 9%, respectively. As a higher prevalence of hypertension was detected by ABPM and nighttime measurement, it can be deduced that ABPM is more sensitive in determining OSA patients with hypertension, and that nighttime ABPM further increases this sensitivity. The presence of masked and white-coat hypertension in OSA patients underlines the importance of correct hypertension diagnosis as it affects further management in this population with increased cardiovascular risk.
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15
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Futenma K, Takaesu Y, Nakamura M, Hayashida K, Takeuchi N, Inoue Y. Metabolic-Syndrome-Related Comorbidities in Narcolepsy Spectrum Disorders: A Preliminary Cross-Sectional Study in Japan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19106285. [PMID: 35627822 PMCID: PMC9141676 DOI: 10.3390/ijerph19106285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 11/17/2022]
Abstract
Narcolepsy types 1 (NT1) and 2 (NT2) and idiopathic hypersomnia (IH) are thought to be a disease continuum known as narcolepsy spectrum disorders (NSDs). This study aimed to assess the prevalence of and factors associated with metabolic-syndrome-related disorders (MRDs) among patients with NSD. Japanese patients with NSD (NT1, n = 94; NT2, n = 83; and IH, n = 57) aged ≥35 years were enrolled in this cross-sectional study. MRD was defined as having at least one of the following conditions: hypertension, diabetes, or dyslipidemia. Demographic variables and MRD incidence were compared among patients in the respective NSD categories. Multivariate logistic regression analysis was used to investigate the factors associated with MRDs. Patients with NT1 had a higher body mass index (BMI) and incidence of MRD than that had by those with NT2 or IH. Age, BMI, and the presence of OSA were significantly associated with the incidence of MRD in NSDs. Age and BMI in NT1, BMI and human leukocyte antigen (HLA)-DQB1*06:02 positivity in NT2, and only age in IH were factors associated with the incidence of MRD. Obesity should be carefully monitored in narcolepsy; however, NT2 with HLA-DQB1*06:02 positive should be followed up for the development of MRD even without obesity.
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Affiliation(s)
- Kunihiro Futenma
- Department of Neuropsychiatry, Graduate School of Medicine, University of the Ryukyus, 207, Uehara, Nishihara-cho, Nakagami-gun, Okinawa 903-0215, Japan;
- Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shinjuku-ku, Tokyo 151-0053, Japan; (M.N.); (N.T.)
- Correspondence: (K.F.); (Y.I.); Tel.: +81-98-895-1157 (K.F.); +81-3-6804-8995 (Y.I.)
| | - Yoshikazu Takaesu
- Department of Neuropsychiatry, Graduate School of Medicine, University of the Ryukyus, 207, Uehara, Nishihara-cho, Nakagami-gun, Okinawa 903-0215, Japan;
- Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shinjuku-ku, Tokyo 151-0053, Japan; (M.N.); (N.T.)
| | - Masaki Nakamura
- Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shinjuku-ku, Tokyo 151-0053, Japan; (M.N.); (N.T.)
- Department of Somnology, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
- Aoyama-Omotesando Sleep Stress Clinic, Aoyama Rise Square 3F, 5-1-22 Minamiaoyama, Minato-ku, Tokyo 107-0062, Japan
| | - Kenichi Hayashida
- Sleep Support Clinic, Miranbeena 1F, 1-18-8 Higashioi, Shinagawa-Ku, Tokyo 140-0011, Japan;
| | - Noboru Takeuchi
- Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shinjuku-ku, Tokyo 151-0053, Japan; (M.N.); (N.T.)
- Department of Somnology, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
- Department of Neuropsychiatry, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan
| | - Yuichi Inoue
- Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shinjuku-ku, Tokyo 151-0053, Japan; (M.N.); (N.T.)
- Department of Somnology, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
- Correspondence: (K.F.); (Y.I.); Tel.: +81-98-895-1157 (K.F.); +81-3-6804-8995 (Y.I.)
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16
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Padgett CA, Butcher JT, Haigh SB, Speese AC, Corley ZL, Rosewater CL, Sellers HG, Larion S, Mintz JD, Fulton DJR, Stepp DW. Obesity Induces Disruption of Microvascular Endothelial Circadian Rhythm. Front Physiol 2022; 13:887559. [PMID: 35600313 PMCID: PMC9119407 DOI: 10.3389/fphys.2022.887559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Obese individuals are at significantly elevated risk of developing cardiovascular disease (CVD). Additionally, obesity has been associated with disrupted circadian rhythm, manifesting in abnormal sleeping and feeding patterns. To date, the mechanisms linking obesity, circadian disruption, and CVD are incompletely understood, and insight into novel mechanistic pathways is desperately needed to improve therapeutic potential and decrease morbidity and mortality. The objective of this study was to investigate the roles of metabolic and circadian disruptions in obesity and assess their contributions in promoting vascular disease. Lean (db/+) and obese (db/db) mice were subjected to 12 weeks of constant darkness to differentiate diurnal and circadian rhythms, and were assessed for changes in metabolism, gene expression, and vascular function. Expression of endothelial nitric oxide synthase (eNOS), an essential enzyme for vascular health, was blunted in obesity and correlated with the oscillatory loss of the novel regulator cezanne (OTUD7B). Lean mice subjected to constant darkness displayed marked reduction in vasodilatory capacity, while endothelial dysfunction of obese mice was not further compounded by diurnal insult. Endothelial gene expression of essential circadian clock components was altered in obesity, but imperfectly phenocopied in lean mice housed in constant darkness, suggesting overlapping but separate mechanisms driving endothelial dysfunction in obesity and circadian disruption. Taken together, these data provide insight into the nature of endothelial circadian rhythm in obesity and suggest a distinct mechanism by which obesity causes a unique circadian defect in the vasculature.
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Affiliation(s)
| | - Joshua T. Butcher
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, United States
| | | | | | | | | | | | - Sebastian Larion
- Division of Gastroenterology and Hepatology, Department of Medicine, College of Medicine, Medical University of South Carolina, Charleston, SC, United States
| | | | - David J. R. Fulton
- Vascular Biology Center, Augusta, GA, United States,Department of Pharmacology and Toxicology, Augusta, GA, United States
| | - David W. Stepp
- Vascular Biology Center, Augusta, GA, United States,Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA, United States,*Correspondence: David W. Stepp,
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17
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Zhao YY, Wang R, Gleason KJ, Lewis EF, Quan SF, Toth CM, Song Y, Morrical M, Rueschman M, Mittleman MA, Redline S. Effect of continuous positive airway pressure treatment on ambulatory blood pressures in high-risk sleep apnea patients: a randomized controlled trial. J Clin Sleep Med 2022; 18:1899-1907. [PMID: 35459446 PMCID: PMC9340589 DOI: 10.5664/jcsm.10012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES The long-term effect of continuous positive airway pressure (CPAP) on 24-hour blood pressure (BP) in high-risk patients with obstructive sleep apnea (OSA) is uncertain. We aimed to determine the effect of CPAP treatment on ambulatory BP in individuals with moderate or severe OSA and cardiovascular disease (CVD) or multiple CVD risk factors without severe sleepiness. METHODS In this randomized, controlled, parallel group study, 169 participants were randomly assigned to CPAP treatment or the control group. The primary outcome was the change in mean 24-hour systolic BP between groups from baseline to the average of 6 and 12 month measurements using mixed effect linear regression models. RESULTS The 24-hour systolic BP did not significantly differ by group, although there was a trend of decrease in the CPAP group (treatment effect -2.7 mm Hg [95% confidence interval -5.9 to 0.6]; P=0.105) compared with control. CPAP had the greatest effect on nighttime systolic BP (treatment effect -5.9 mm Hg [95% confidence interval -9.9 to -1.9]; P=0.004). Similar improvements in other nocturnal BP indices were observed. CONCLUSIONS In high risk patients with moderate-severe OSA without severe sleepiness, CPAP resulted in modest BP improvements over 6 to 12 months of follow-up, with possibly larger effects for nocturnal BP. Use of office blood pressure may under-estimate the effect of CPAP on BP profile in patients with OSA. CLINICAL TRIAL REGISTRATION Registry: ClinicalTrials.gov; Title: Sleep Apnea Intervention for Cardiovascular Disease Reduction; Identifier: NCT01261390; URL: https://clinicaltrials.gov/ct2/show/NCT01261390.
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Affiliation(s)
- Ying Y Zhao
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA.,Department of Medicine, Joseph Brant Hospital, Burlington, Ontario, Canada
| | - Rui Wang
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA.,Harvard Medical School, Boston, MA.,Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Kevin J Gleason
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Eldrin F Lewis
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, California
| | - Stuart F Quan
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA.,Harvard Medical School, Boston, MA
| | - Claudia M Toth
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA.,Harvard Medical School, Boston, MA
| | - Yue Song
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Michael Morrical
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Michael Rueschman
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA
| | - Murray A Mittleman
- Harvard Medical School, Boston, MA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
| | - Susan Redline
- Division of Sleep Medicine and Circadian Disorders, Department of Medicine, Brigham and Women's Hospital, Boston, MA.,Harvard Medical School, Boston, MA.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA.,Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
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18
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Glucose profiles in obstructive sleep apnea and type 2 diabetes mellitus. Sleep Med 2022; 95:105-111. [DOI: 10.1016/j.sleep.2022.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/22/2022] [Accepted: 04/13/2022] [Indexed: 10/18/2022]
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19
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Akashiba T, Inoue Y, Uchimura N, Ohi M, Kasai T, Kawana F, Sakurai S, Takegami M, Tachikawa R, Tanigawa T, Chiba S, Chin K, Tsuiki S, Tonogi M, Nakamura H, Nakayama T, Narui K, Yagi T, Yamauchi M, Yamashiro Y, Yoshida M, Oga T, Tomita Y, Hamada S, Murase K, Mori H, Wada H, Uchiyama M, Ogawa H, Sato K, Nakata S, Mishima K, Momomura SI. Sleep Apnea Syndrome (SAS) Clinical Practice Guidelines 2020. Respir Investig 2022; 60:3-32. [PMID: 34986992 DOI: 10.1016/j.resinv.2021.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 11/25/2022]
Abstract
The prevalence of sleep disordered breathing (SDB) is reportedly very high. Among SDBs, the incidence of obstructive sleep apnea (OSA) is higher than previously believed, with patients having moderate-to-severe OSA accounting for approximately 20% of adult males and 10% of postmenopausal women not only in Western countries but also in Eastern countries, including Japan. Since 1998, when health insurance coverage became available, the number of patients using continuous positive airway pressure (CPAP) therapy for sleep apnea has increased sharply, with the number of patients about to exceed 500,000 in Japan. Although the "Guidelines for Diagnosis and Treatment of Sleep Apnea Syndrome (SAS) in Adults" was published in 2005, a new guideline was prepared in order to indicate the standard medical care based on the latest trends, as supervised by and in cooperation with the Japanese Respiratory Society and the "Survey and Research on Refractory Respiratory Diseases and Pulmonary Hypertension" Group, of Ministry of Health, Labor and Welfare and other related academic societies, including the Japanese Society of Sleep Research, in addition to referring to the previous guidelines. Because sleep apnea is an interdisciplinary field covering many areas, this guideline was prepared including 36 clinical questions (CQs). In the English version, therapies and managements for SAS, which were written from CQ16 to 36, were shown. The Japanese version was published in July 2020 and permitted as well as published as one of the Medical Information Network Distribution Service (Minds) clinical practice guidelines in Japan in July 2021.
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Affiliation(s)
| | - Yuichi Inoue
- Department of Somnology, Tokyo Medical University, Tokyo, Japan
| | - Naohisa Uchimura
- Department of Neuropsychiatry, Kurume University School of Medicine, Fukuoka, Japan
| | - Motoharu Ohi
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Fusae Kawana
- Department of Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shigeru Sakurai
- Division of Behavioral Sleep Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Misa Takegami
- Department of Preventive Medicine and Epidemiologic Informatics, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Rho Tachikawa
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Takeshi Tanigawa
- Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shintaro Chiba
- Ota Memorial Sleep Center, Ota General Hospital, Kanagawa, Japan
| | - Kazuo Chin
- Department of Sleep Medicine and Respiratory Care, Division of Sleep Medicine, Nihon University of Medicine, Tokyo, Japan; Department of Human Disease Genomics, Center for Genomic Medicine, Graduate School Medicine, Kyoto University, Japan.
| | | | - Morio Tonogi
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
| | | | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Koji Narui
- Sleep Center, Toranomon Hospital, Tokyo, Japan
| | - Tomoko Yagi
- Ota Memorial Sleep Center, Ota General Hospital, Kanagawa, Japan
| | - Motoo Yamauchi
- Department of Respiratory Medicine, Nara Medical University, Nara, Japan
| | | | - Masahiro Yoshida
- Department of Hemodialysis and Surgery, Ichikawa Hospital, International University of Health and Welfare, Chiba, Japan
| | - Toru Oga
- Department of Respiratory Medicine, Kawasaki Medical School, Okayama, Japan
| | - Yasuhiro Tomita
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Satoshi Hamada
- Department of Advanced Medicine for Respiratory Failure, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kimihiko Murase
- Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroyuki Mori
- Department of Neuropsychiatry, Kurume University School of Medicine, Fukuoka, Japan
| | - Hiroo Wada
- Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Makoto Uchiyama
- Department of Psychiatry, Nihon University School of Medicine, Tokyo, Japan
| | - Hiromasa Ogawa
- Department of Occupational Health, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kazumichi Sato
- Department of Dental and Oral Surgery, International University of Health and Welfare, Chiba, Japan
| | - Seiichi Nakata
- Department of Otorhinolaryngology, Second Hospital, Fujita Health University School of Medicine, Aichi, Japan
| | - Kazuo Mishima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Shin-Ichi Momomura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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20
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Akashiba T, Inoue Y, Uchimura N, Ohi M, Kasai T, Kawana F, Sakurai S, Takegami M, Tachikawa R, Tanigawa T, Chiba S, Chin K, Tsuiki S, Tonogi M, Nakamura H, Nakayama T, Narui K, Yagi T, Yamauchi M, Yamashiro Y, Yoshida M, Oga T, Tomita Y, Hamada S, Murase K, Mori H, Wada H, Uchiyama M, Ogawa H, Sato K, Nakata S, Mishima K, Momomura SI. Sleep Apnea Syndrome (SAS) Clinical Practice Guidelines 2020. Sleep Biol Rhythms 2022; 20:5-37. [PMID: 38469064 PMCID: PMC10900032 DOI: 10.1007/s41105-021-00353-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 10/28/2021] [Indexed: 12/17/2022]
Abstract
The prevalence of sleep-disordered breathing (SDB) is reportedly very high. Among SDBs, the incidence of obstructive sleep apnea (OSA) is higher than previously believed, with patients having moderate-to-severe OSA accounting for approximately 20% of adult males and 10% of postmenopausal women not only in Western countries but also in Eastern countries, including Japan. Since 1998, when health insurance coverage became available, the number of patients using continuous positive airway pressure (CPAP) therapy for sleep apnea has increased sharply, with the number of patients about to exceed 500,000 in Japan. Although the "Guidelines for Diagnosis and Treatment of Sleep Apnea Syndrome (SAS) in Adults" was published in 2005, a new guideline was prepared to indicate the standard medical care based on the latest trends, as supervised by and in cooperation with the Japanese Respiratory Society and the "Survey and Research on Refractory Respiratory Diseases and Pulmonary Hypertension" Group, of Ministry of Health, Labor and Welfare and other related academic societies, including the Japanese Society of Sleep Research, in addition to referring to the previous guidelines. Since sleep apnea is an interdisciplinary field covering many areas, this guideline was prepared including 36 clinical questions (CQs). In the English version, therapies and managements for SAS, which were written from CQ16 to 36, were shown. The Japanese version was published in July 2020 and permitted as well as published as one of the Medical Information Network Distribution Service (Minds) clinical practice guidelines in Japan in July 2021.
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Affiliation(s)
| | - Yuichi Inoue
- Department of Somnology, Tokyo Medical University, Tokyo, Japan
| | - Naohisa Uchimura
- Department of Neuropsychiatry, Kurume University School of Medicine, Fukuoka, Japan
| | - Motoharu Ohi
- Sleep Medical Center, Osaka Kaisei Hospital, Osaka, Japan
| | - Takatoshi Kasai
- Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Fusae Kawana
- Department of Cardiovascular Respiratory Sleep Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shigeru Sakurai
- Division of Behavioral Sleep Medicine, Iwate Medical University School of Medicine, Iwate, Japan
| | - Misa Takegami
- Department of Preventive Medicine and Epidemiologic Informatics, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Ryo Tachikawa
- Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Hyogo, Japan
| | - Takeshi Tanigawa
- Department of Public Health, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shintaro Chiba
- Ota Memorial Sleep Center, Ota General Hospital, Kanagawa, Japan
| | - Kazuo Chin
- Department of Sleep Medicine and Respiratory Care, Division of Sleep Medicine, Nihon University of Medicine, 30-1 Oyaguchikami-cho, Itabashi-ku, Tokyo, 173-8610 Japan
- Department of Human Disease Genomics, Center for Genomic Medicine, Graduate School Medicine, Kyoto University, Kyoto, Japan
| | | | - Morio Tonogi
- Department of Oral and Maxillofacial Surgery, Nihon University School of Dentistry, Tokyo, Japan
| | | | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Koji Narui
- Sleep Center, Toranomon Hospital, Tokyo, Japan
| | - Tomoko Yagi
- Ota Memorial Sleep Center, Ota General Hospital, Kanagawa, Japan
| | - Motoo Yamauchi
- Department of Respiratory Medicine, Nara Medical University, Nara, Japan
| | | | - Masahiro Yoshida
- Department of Hemodialysis and Surgery, Ichikawa Hospital, International University of Health and Welfare, Chiba, Japan
| | - Toru Oga
- Department of Respiratory Medicine, Kawasaki Medical School, Okayama, Japan
| | - Yasuhiro Tomita
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Satoshi Hamada
- Department of Advanced Medicine for Respiratory Failure, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kimihiko Murase
- Department of Respiratory Care and Sleep Control Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hiroyuki Mori
- Department of Neuropsychiatry, Kurume University School of Medicine, Fukuoka, Japan
| | - Hiroo Wada
- Department of Somnology, Tokyo Medical University, Tokyo, Japan
| | - Makoto Uchiyama
- Department of Psychiatry, Nihon University School of Medicine, Tokyo, Japan
| | - Hiromasa Ogawa
- Department of Occupational Health, Tohoku University Graduate School of Medicine, Miyagi, Japan
| | - Kazumichi Sato
- Department of Dental and Oral Surgery, International University of Health and Welfare, Chiba, Japan
| | - Seiichi Nakata
- Department of Otorhinolaryngology, Second Hospital, Fujita Health University School of Medicine, Aichi, Japan
| | - Kazuo Mishima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Shin-Ichi Momomura
- Division of Cardiovascular Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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21
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Barnett HM, Davis AP, Khot SP. Stroke and breathing. HANDBOOK OF CLINICAL NEUROLOGY 2022; 189:201-222. [PMID: 36031305 DOI: 10.1016/b978-0-323-91532-8.00016-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Stroke remains a leading cause of neurologic disability with wide ranging effects, including a variety of respiratory abnormalities. Stroke may influence the central control of the respiratory drive and breathing pattern, airway protection and maintenance, and the respiratory mechanics of inspiration and expiration. In the acute phase of stroke, the central control of breathing is affected by changes in consciousness, cerebral edema, and direct damage to brainstem respiratory centers, resulting in abnormalities in respiratory pattern and loss of airway protection. Common acute complications related to respiratory dysfunction include dysphagia, aspiration, and pneumonia. Respiratory control centers are located in the brainstem, and brainstem stroke causes specific patterns of respiratory dysfunction. Depending on the exact location and extent of stroke, respiratory failure may occur. While major respiratory abnormalities often improve over time, sleep-disordered breathing remains common in the subacute and chronic phases and worsens outcomes. Respiratory mechanics are impaired in hemiplegic or hemiparetic stroke, contributing to worse cardiopulmonary health in stroke survivors. Interventions to address the respiratory complications are under researched, and further investigation in this area is critical to improving outcomes among stroke survivors.
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Affiliation(s)
- Heather M Barnett
- Department of Rehabilitation Medicine, University of Washington, Seattle, WA, United States
| | - Arielle P Davis
- Department of Neurology, University of Washington, Seattle, WA, United States
| | - Sandeep P Khot
- Department of Neurology, University of Washington, Seattle, WA, United States.
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22
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Sutherland K, Dissanayake HU, Trzepizur W, Gagnadoux F, Cistulli PA. Circadian blood pressure profile and blood pressure changes following oral appliance therapy for obstructive sleep apnoea. J Hypertens 2021; 39:2272-2280. [PMID: 34149014 DOI: 10.1097/hjh.0000000000002914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Oral appliance therapy for obstructive sleep apnoea (OSA) reduces blood pressure (BP) but there is little information on relationship to circadian BP pattern (nocturnal BP dipping or non-dipping). The aims of this study were to determine whether nocturnal dipping pattern influences BP changes following oral appliance therapy, and to determine the effect of oral appliance therapy on circadian BP pattern. METHODS Participants in two randomized trials of oral appliance therapy (1-2 months) with 24-h ambulatory BP monitoring (ABPM) data were included (N = 152). Nocturnal BP Dippers (nocturnal/diurnal SBP ratio <0.9) and non-dippers were compared for BP changes following oral appliance therapy and the effect of oral appliance therapy on nocturnal BP dipping was assessed. RESULTS Of 152 participants, 64.5% were dippers. Dippers were on average younger and less likely to be hypertensive (42 vs. 82.7%, P < 0.001). Nondippers showed greater reduction in nocturnal BP measures, related to higher BP measures at baseline. There was no difference in the relationship between treatment effectiveness and BP changes between groups. Oral appliance therapy converted only 23% of baseline non-dippers to a nocturnal dipping profile. CONCLUSION Baseline circadian BP profile influenced the BP response to oral appliance therapy, largely because of higher baseline BP in the non-dipper subgroup. Oral appliance therapy did not convert OSA patients to a more favourable circadian BP profile. Further work is required to understand the effect of oral appliance therapy on circadian BP profile and of the individuals who will receive cardiovascular benefit from oral appliance therapy.
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Affiliation(s)
- Kate Sutherland
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Hasthi U Dissanayake
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Wojciech Trzepizur
- University of Angers, INSERM UMR 1063 'SOPAM'
- Department of Respiratory and Sleep Medicine, University Hospital of Angers, Angers, France
| | - Frederic Gagnadoux
- University of Angers, INSERM UMR 1063 'SOPAM'
- Department of Respiratory and Sleep Medicine, University Hospital of Angers, Angers, France
| | - Peter A Cistulli
- Sleep Research Group, Charles Perkins Centre & Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown
- Department of Respiratory & Sleep Medicine, Royal North Shore Hospital, St Leonards, New South Wales, Australia
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23
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Cazco MDP, Lorenzi-Filho G. Síndrome de apnea obstructiva del sueño y sus consecuencias cardiovasculares. REVISTA MÉDICA CLÍNICA LAS CONDES 2021. [DOI: 10.1016/j.rmclc.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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Crinion SJ, Kleinerova J, Kent B, Nolan G, Taylor CT, Ryan S, McNicholas WT. Non-dipping nocturnal blood pressure correlates with obstructive sleep apnoea severity in normotensive subjects and may reverse with therapy. ERJ Open Res 2021; 7:00338-2021. [PMID: 34409095 PMCID: PMC8365144 DOI: 10.1183/23120541.00338-2021] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/09/2021] [Indexed: 11/09/2022] Open
Abstract
Background Obstructive sleep apnoea (OSA) is strongly associated with systemic hypertension, but there are limited data on the relationship with blood pressure (BP) in normotensive subjects. Here, we examined the relationship of OSA with nocturnal BP in a documented diurnal normotensive cohort, explored potential intermediate pathways and assessed the effects on BP of continuous positive airways pressure (CPAP) therapy. Methods 65 males referred for assessment of possible OSA and normotensive on 24-hour BP monitoring underwent overnight inpatient polysomnography (age 41±7 years, body mass index (BMI) 34±6 kg·m−2, apnoea–hypopnoea index (AHI) 14 (interquartile range 5–26)). Urine and serum were assessed for markers of sympathetic activation, renin–angiotensin–aldosterone system activity, oxidative stress, endothelial function and systemic inflammation. In a subset of patients, 24-hour BP monitoring was repeated after CPAP therapy. Results Within this normotensive cohort, night-time systolic and diastolic BP and nocturnal BP dip were highest in the fourth OSA severity quartile (p<0.05). Nocturnal BP dip correlated with AHI (r=−0.327, p<0.05) and oxygen desaturation index (ODI) (r=−0.371, p<0.05), but only ODI was an independent predictor of BP dip (B=–0.351, p<0.01) and non-dipping status (B=0.046, p<0.05). Overnight urinary norepinephrine correlated with nocturnal systolic BP (r=0.387, p<0.01) with a trend towards correlation with systolic dipping (p=0.087). In 20 CPAP-treated patients, night-time systolic BP decreased (p<0.05) and mean nocturnal BP dip increased (p≤0.05). Conclusion In this normotensive cohort, OSA severity was associated with higher nocturnal BP, which improved following CPAP therapy, and intermittent hypoxia was the most important OSA-related variable in this relationship. There is a strong association in a normotensive cohort between OSA and nocturnal blood pressure, with intermittent hypoxia as an important mechanistic pathwayhttps://bit.ly/2SFvWiB
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Affiliation(s)
- Sophie J Crinion
- Respirology and Sleep Medicine, Kingston Health Sciences Centre, Kingston, Canada.,Dept of Medicine, Queen's University, Kingston, Canada
| | - Jana Kleinerova
- Dept of Respiratory Medicine, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Brian Kent
- Dept of Respiratory Medicine, St James' Hospital, Dublin, Ireland
| | - Geraldine Nolan
- Dept of Respiratory and Sleep Medicine, St Vincent's University Hospital, Dublin, Ireland
| | - Cormac T Taylor
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Silke Ryan
- Dept of Respiratory and Sleep Medicine, St Vincent's University Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland.,These authors contributed equally
| | - Walter T McNicholas
- Dept of Respiratory and Sleep Medicine, St Vincent's University Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland.,These authors contributed equally
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25
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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: 16] [Impact Index Per Article: 5.3] [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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26
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Harris SS, Schwerd-Kleine T, Lee BI, Busche MA. The Reciprocal Interaction Between Sleep and Alzheimer's Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1344:169-188. [PMID: 34773232 DOI: 10.1007/978-3-030-81147-1_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
It is becoming increasingly recognized that patients with a variety of neurodegenerative diseases exhibit disordered sleep/wake patterns. While sleep impairments have typically been thought of as sequelae of underlying neurodegenerative processes in sleep-wake cycle regulating brain regions, including the brainstem, hypothalamus, and basal forebrain, emerging evidence now indicates that sleep deficits may also act as pathophysiological drivers of brain-wide disease progression. Specifically, recent work has indicated that impaired sleep can impact on neuronal activity, brain clearance mechanisms, pathological build-up of proteins, and inflammation. Altered sleep patterns may therefore be novel (potentially reversible) dynamic functional markers of proteinopathies and modifiable targets for early therapeutic intervention using non-invasive stimulation and behavioral techniques. Here we highlight research describing a potentially reciprocal interaction between impaired sleep and circadian patterns and the accumulation of pathological signs and features in Alzheimer's disease, the most prevalent neurodegenerative disease in the elderly.
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Affiliation(s)
| | | | - Byung Il Lee
- UK Dementia Research Institute at UCL, London, UK
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27
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Abstract
Hypertension is a highly common condition with well-established adverse consequences. Ambulatory blood pressure monitoring has repeatedly been shown to better predict cardiovascular outcomes and mortality, compared to single office visit blood pressure. Non-dipping of sleep-time blood pressure is an independent marker for increased cardiovascular risk. We review blood pressure variability and the challenges of blood pressure monitoring during sleep. Although pathological sleep such as obstructive sleep apnea has been associated with non-dipping of sleep-time blood pressure, blood pressure is not routinely measured during sleep due to lack of unobtrusive blood pressure monitoring technology. Second, we review existing noninvasive continuous blood pressure monitoring technologies. Lastly, we propose including sleep-time blood pressure monitoring during sleep studies and including sleep studies in patients undergoing ambulatory blood pressure monitoring.
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Abstract
Sleep disorders, such as sleep-disordered breathing (SDB), insomnia or restless legs syndrome (RLS), are common in the general population and after stroke. In some cases, sleep disturbances are pre-existing, but can also appear de novo as a direct consequence of brain damage or due to stroke-related complications. Furthermore, some sleep conditions may act as a risk factor of stroke. This review explores the available evidence of the two-way relationship between sleep and stroke. Cardiovascular physiological changes during sleep are described, as well as the evidence on the relationship between stroke and sleep duration, SDB, RLS, insomnia, excessive daytime sleepiness (EDS), and circadian rhythm alterations. Potential changes on sleep architecture, and the links that may exist between sleep and functional outcomes after stroke are also discussed. Importantly, sleep-related disturbances may be associated with worse stroke recovery outcomes and increased cerebrovascular morbidity. It is therefore relevant that the bidirectional association between stroke and sleep is taken into consideration by clinicians taking care of these patients. Future research may focus on this mutual relationship for a better understanding of the impact of stroke on sleep, the importance of sleep in stroke incidence and recovery, and have further evidence on treatment strategies that may improve functional outcome after stroke.
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Affiliation(s)
| | - Saima Bashir
- Stroke Unit, Department of Neurology, Hospital Universitari Dr. Josep Trueta de Girona, IDIBGI, Girona, Spain
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29
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Exploring the Mediators that Promote Carotid Body Dysfunction in Type 2 Diabetes and Obesity Related Syndromes. Int J Mol Sci 2020; 21:ijms21155545. [PMID: 32756352 PMCID: PMC7432672 DOI: 10.3390/ijms21155545] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/26/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022] Open
Abstract
Carotid bodies (CBs) are peripheral chemoreceptors that sense changes in blood O2, CO2, and pH levels. Apart from ventilatory control, these organs are deeply involved in the homeostatic regulation of carbohydrates and lipid metabolism and inflammation. It has been described that CB dysfunction is involved in the genesis of metabolic diseases and that CB overactivation is present in animal models of metabolic disease and in prediabetes patients. Additionally, resection of the CB-sensitive nerve, the carotid sinus nerve (CSN), or CB ablation in animals prevents and reverses diet-induced insulin resistance and glucose intolerance as well as sympathoadrenal overactivity, meaning that the beneficial effects of decreasing CB activity on glucose homeostasis are modulated by target-related efferent sympathetic nerves, through a reflex initiated in the CBs. In agreement with our pre-clinical data, hyperbaric oxygen therapy, which reduces CB activity, improves glucose homeostasis in type 2 diabetes patients. Insulin, leptin, and pro-inflammatory cytokines activate the CB. In this manuscript, we review in a concise manner the putative pathways linking CB chemoreceptor deregulation with the pathogenesis of metabolic diseases and discuss and present new data that highlight the roles of hyperinsulinemia, hyperleptinemia, and chronic inflammation as major factors contributing to CB dysfunction in metabolic disorders.
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30
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Gauda EB, Conde S, Bassi M, Zoccal DB, Almeida Colombari DS, Colombari E, Despotovic N. Leptin: Master Regulator of Biological Functions that Affects Breathing. Compr Physiol 2020; 10:1047-1083. [PMID: 32941688 DOI: 10.1002/cphy.c190031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Obesity is a global epidemic in developed countries accounting for many of the metabolic and cardiorespiratory morbidities that occur in adults. These morbidities include type 2 diabetes, sleep-disordered breathing (SDB), obstructive sleep apnea, chronic intermittent hypoxia, and hypertension. Leptin, produced by adipocytes, is a master regulator of metabolism and of many other biological functions including central and peripheral circuits that control breathing. By binding to receptors on cells and neurons in the brainstem, hypothalamus, and carotid body, leptin links energy and metabolism to breathing. In this comprehensive article, we review the central and peripheral locations of leptin's actions that affect cardiorespiratory responses during health and disease, with a particular focus on obesity, SDB, and its effects during early development. Obesity-induced hyperleptinemia is associated with centrally mediated hypoventilation with decrease CO2 sensitivity. On the other hand, hyperleptinemia augments peripheral chemoreflexes to hypoxia and induces sympathoexcitation. Thus, "leptin resistance" in obesity is relative. We delineate the circuits responsible for these divergent effects, including signaling pathways. We review the unique effects of leptin during development on organogenesis, feeding behavior, and cardiorespiratory responses, and how undernutrition and overnutrition during critical periods of development can lead to cardiorespiratory comorbidities in adulthood. We conclude with suggestions for future directions to improve our understanding of leptin dysregulation and associated clinical diseases and possible therapeutic targets. Lastly, we briefly discuss the yin and the yang, specifically the contribution of relative adiponectin deficiency in adults with hyperleptinemia to the development of metabolic and cardiovascular disease. © 2020 American Physiological Society. Compr Physiol 10:1047-1083, 2020.
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Affiliation(s)
- Estelle B Gauda
- Division of Neonatology, Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Silvia Conde
- CEDOC, NOVA Medical School, Faculdade de Ciências Médicas, Lisboa, Portugal
| | - Mirian Bassi
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Daniel B Zoccal
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Debora Simoes Almeida Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Eduardo Colombari
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Nikola Despotovic
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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Clinical and polysomnographic features of hypertension in obstructive sleep apnea: A single-center cross-sectional study. Anatol J Cardiol 2020; 23:334-341. [PMID: 32478693 PMCID: PMC7414240 DOI: 10.14744/anatoljcardiol.2020.71429] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Objective: Obstructive sleep apnea (OSA) is associated with elevated blood pressure (BP) and increases the risk of developing cardiovascular diseases. This study aimed to determine the clinical and polysomnographic features of OSA that are significantly associated with hypertension (HT). Methods: This is a prospective study that enrolled patients diagnosed with OSA in Ankara University Faculty of Medicine from January 2015 to June 2016. The patients were categorized into normotensives (n=125) and hypertensives (n=141). BP was taken at the evening before and the morning after polysomnography (PSG). The polysomnographic findings of normotensive and hypertensive patients were compared, and independent risk factors that are associated with HT were analyzed. Results: Hypertensive patients exhibited older age and higher Epworth sleepiness scale (ESS), apnea–hypopnea index (AHI), mean apnea duration, arousal index, and oxygen desaturation index (ODI) than normotensive patients. Nocturnal oxygen desaturation (NOD) was more frequent and the percentage of the duration of NOD to total sleep time (TST) was higher in hypertensive than normotensive patients. Multivariate analyses revealed that age (OR: 1.095, 95% CI 1.053 to 1.139, p<0.001), ESS (OR: 1.186, 95% CI 1.071 to 1.313, p=0.001), mean apnea duration (OR: 1.072, 95% CI 1.032 to 1.113, p=0.002), ODI (OR: 1.062, 95% CI 1.025 to 1.101, p=0.001), and NOD (OR: 2.439, 95% CI 1.170 to 5.086, p=0.017) were independent risk factors for HT in OSA. Conclusion: This study suggests that age, ESS, parameters of oxygenation, and apnea duration were associated with HT in patients with OSA. Hence, patients with OSA with these findings should be evaluated for HT.
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Macumber I, Flynn JT. Does treatment-resistant hypertension exist in children? A review of the evidence. Pediatr Nephrol 2020; 35:969-976. [PMID: 31147776 DOI: 10.1007/s00467-019-04268-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/20/2019] [Accepted: 04/18/2019] [Indexed: 12/23/2022]
Abstract
Treatment-resistant hypertension (TRH) is a well-described condition in adult patients that is associated with poor clinical outcomes. While case reports of hypertension resistant to therapy in children have been published, it is unclear if TRH truly exists in childhood. This educational review will briefly summarize recent evidence and recommendations for TRH in adults, as well as will review the literature regarding medically resistant hypertension in children and adolescents. Finally, we propose a clinical approach for evaluation hypertensive children and adolescents with apparent treatment resistance.
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Affiliation(s)
- Ian Macumber
- Connecticut Children's Medical Center, 282 Washington St, Hartford, CT, 06106, USA.
| | - Joseph T Flynn
- Seattle Children's Hospital, 4800 Sand Point Way NE, Seattle, WA, 98105, USA
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Ottaviani G, Buja LM. Pathology of unexpected sudden cardiac death: Obstructive sleep apnea is part of the challenge. Cardiovasc Pathol 2020; 47:107221. [PMID: 32371340 DOI: 10.1016/j.carpath.2020.107221] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 01/03/2023] Open
Abstract
Unexpected sudden cardiac death (SCD), sudden infant death syndrome (SIDS) and sudden intrauterine unexplained death (SIUD) are major unsolved, devastating forms of death that occur frequently. Obstructive sleep apnea (OSA) has been associated with increased cardiovascular and cerebrovascular morbidity and mortality, including sudden cardiac death (SCD). This editorial will review the pathology of SCD, including sudden infant death syndrome (SIDS) and sudden intrauterine unexplained death (SIUD); OSA with its cardiovascular consequences; the possible link between SCD and OSA, discussing the potential mechanisms underlying these two frequent, but yet overlooked pathologies. Finally, the possible preventive benefits of treating OSA and identifying patients at common risk for OSA and SCD and SIDS-SIUD to prevent unexpected deaths will be discussed. Post-mortem examination is of great importance in every case of SCD sine materia, with examination of the brainstem and cardiac conduction system on serial sections, when general autopsy fails, but it should be stressed that also the investigations of patients suffering from OSA should focus on the possibility of pathological findings in common with cases of SCD.
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Affiliation(s)
- Giulia Ottaviani
- Lino Rossi Research Center, Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via della Commenda, 19, 20122 Milan, Italy; Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - L Maximilian Buja
- Department of Pathology and Laboratory Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, USA
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Affiliation(s)
| | - Naima Covassin
- Department of Cardiovascular Diseases (N.C., V.K.S.), Mayo Clinic, Rochester, MN
| | - Virend K Somers
- Department of Cardiovascular Diseases (N.C., V.K.S.), Mayo Clinic, Rochester, MN
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Prevalence, Characteristics, and Association of Obstructive Sleep Apnea with Blood Pressure Control in Patients with Resistant Hypertension. Ann Am Thorac Soc 2019; 16:1414-1421. [DOI: 10.1513/annalsats.201901-053oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Ash GI. Revisions of Medicare reimbursement policy for ambulatory blood pressure monitoring and the role of qualitative analysis. J Clin Hypertens (Greenwich) 2019; 21:1810-1812. [PMID: 31642575 DOI: 10.1111/jch.13715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 09/22/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Garrett I Ash
- Veterans Affairs Connecticut Healthcare System, West Haven, CT, USA.,Yale School of Medicine Center for Medical Informatics, New Haven, CT, USA
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Abstract
OBJECTIVE Abnormalities in circadian blood pressure (BP) variation, particularly increase in nocturnal BP, have been reported to be risk factors for cardiovascular disease, although the factors associated with BP abnormalities are not fully understood. This study aimed to clarify possible associations of sleep characteristics, including sleep fragmentation, sleep disordered breathing, and nocturia, with sleep BP by simultaneous multiday measurements. METHODS A cross-sectional study evaluated 5959 community participants having home-measured data on nocturnal BP change (sleep BP - awaking BP), sleep characteristics, and sleep disordered breathing. Sleep characteristics including the fragmentation index were assessed using wrist-wearable actigraphy, whereas sleep disordered breathing was assessed by 3% oxygen desaturation index obtained using a finger-type monitor. The number of nocturnal urinations was recorded in a sleep diary. RESULTS Mean nocturnal SBP change was -8.5 ± 7.9%. A 3% oxygen desaturation index was associated with the BP change independently of the basic covariates (β = 0.051, P = 0.001), although the association became insignificant (P = 0.196) after adjusting the fragmentation index (β = 0.105, P < 0.001). The association of the fragmentation index was also insignificant (P = 0.153) after adjusting measurement season (middle season: β = 0.163, P < 0.001; summer season: β = 0.249, P < 0.001). In contrast, the frequency of urination showed strong and independent association (β = 0.140, P < 0.001), with smaller nocturnal BP drop in participants with frequent urination. CONCLUSION Subjective sleep estimates and frequent nocturnal urination may represent a potential risk for circadian BP abnormalities.
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Sapiña-Beltrán E, Torres G, Benítez I, Santamaría-Martos F, Durán-Cantolla J, Egea C, Sánchez-de-la-Torre M, Barbé F, Dalmases M. Differential blood pressure response to continuous positive airway pressure treatment according to the circadian pattern in hypertensive patients with obstructive sleep apnoea. Eur Respir J 2019; 54:13993003.00098-2019. [PMID: 31097515 DOI: 10.1183/13993003.00098-2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/21/2019] [Indexed: 01/08/2023]
Abstract
Continuous positive airway pressure (CPAP) has a heterogeneous effect on blood pressure (BP) in hypertensive patients. However, the effect of CPAP on BP in hypertensive subjects regarding circadian BP pattern has never been explored. This study aimed to assess the effect of CPAP on BP, taking into consideration the circadian BP pattern in untreated hypertensive patients.This study is a post hoc analysis of the Spanish Cohort for the Study of the Effect of CPAP in Hypertension (CEPECTA), a multicentre, randomised trial of CPAP versus sham-CPAP in patients with new-onset systemic hypertension and an apnoea-hypopnoea index >15 events·h-1 We included patients for whom 24-h ambulatory BP monitoring (ABPM) data were available at baseline and 12 weeks after the intervention. Subjects were classified based on the dipping ratio (dipper/non-dipper). We evaluated the effect of CPAP on ABPM parameters after 12 weeks of treatment.Overall, 272 hypertensive subjects were included in the analysis (113 dippers and 159 non-dippers). Baseline clinical and polysomnographic variables were similar between the groups. CPAP treatment in non-dipper patients was associated with reductions in 24-h ambulatory BP variables and night-time ambulatory BP measurements. However, a nonsignificant effect was reported in the dipper group. The differential effects of CPAP between the groups were -2.99 mmHg (95% CI -5.92-- -0.06 mmHg) for the mean 24-h ambulatory BP and -5.35 mmHg (95% CI -9.01- -1.69 mmHg) for the mean night-time ambulatory BP.Our results show a differential effect of CPAP treatment on BP in hypertensive patients depending on the circadian pattern. Only non-dipper patients benefited from CPAP treatment in terms of BP reduction.
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Affiliation(s)
- Esther Sapiña-Beltrán
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Gerard Torres
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain
| | - Iván Benítez
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Fernando Santamaría-Martos
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain
| | - Joaquín Durán-Cantolla
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Bioaraba Research Institute, OSI Araba University Hospital, Dept of Medicine of Basque Country University, Vitoria-Gasteiz, Spain
| | - Carlos Egea
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain.,Unidad Funcional de Sueño, Bioaraba Research Institute, OSI Araba University Hospital, Dept of Medicine of Basque Country University, Vitoria-Gasteiz, Spain
| | - Manuel Sánchez-de-la-Torre
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Ferrán Barbé
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Mireia Dalmases
- Hospital Universitari Arnau de Vilanova and Santa Maria, Group of Translational Research in Respiratory Medicine, IRB Lleida, Universitat de Lleida, Lleida, Spain .,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
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Mansukhani MP, Kolla BP, Somers VK. Hypertension and Cognitive Decline: Implications of Obstructive Sleep Apnea. Front Cardiovasc Med 2019; 6:96. [PMID: 31355211 PMCID: PMC6636426 DOI: 10.3389/fcvm.2019.00096] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 06/25/2019] [Indexed: 12/16/2022] Open
Abstract
Hypertension and dementia are highly prevalent in the general population. Hypertension has been shown to be a risk factor for Alzheimer's dementia and vascular dementia. Sleep apnea, another common disorder, is strongly associated with hypertension and recent evidence suggests that it may also be linked with cognitive decline and dementia. It is possible that sleep apnea is the final common pathway linking hypertension to the development of dementia. This hypothesis merits further exploration as sleep apnea is readily treatable and such therapy could foreseeably delay or prevent the onset of dementia. At present, there is a paucity of therapeutic modalities that can prevent or arrest cognitive decline. In this review, we describe the associations between hypertension, dementia and sleep apnea, the pathophysiologic mechanisms underlying these associations, and the literature examining the impact of treatment of hypertension and sleep apnea on cognition. Potential areas of future investigation that may help advance our understanding of the magnitude and direction of the interaction between these conditions and the effects of treatment of high blood pressure and sleep apnea on cognition are highlighted.
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Affiliation(s)
| | - Bhanu Prakash Kolla
- Center for Sleep Medicine, Mayo Clinic, Rochester, MN, United States.,Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, United States
| | - Virend K Somers
- Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, United States
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41
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Disturbed Sleep as a Mechanism of Race Differences in Nocturnal Blood Pressure Non-Dipping. Curr Hypertens Rep 2019; 21:51. [DOI: 10.1007/s11906-019-0954-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Affiliation(s)
- Sandeep P Khot
- From the Department of Neurology, University of Washington School of Medicine, Seattle (S.P.K.)
| | - Lewis B Morgenstern
- Stroke Program, Medical School, and the Center for Social Epidemiology and Population Health, School of Public Health, University of Michigan, Ann Arbor (L.B.M.)
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Sapiña-Beltrán E, Santamaria-Martos F, Benítez I, Torres G, Masa JF, Sánchez-de-la-Torre M, Barbé F, Dalmases M. Normotensive patients with obstructive sleep apnoea: changes in 24-h ambulatory blood pressure monitoring with continuous positive airway pressure treatment. J Hypertens 2019; 37:720-727. [PMID: 30817452 DOI: 10.1097/hjh.0000000000001934] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Continuous positive airway pressure (CPAP) treatment reduces blood pressure (BP) in obstructive sleep apnoea (OSA) and hypertensive patients, but there is a lack of data about the effects of CPAP on the BP in normotensive patients. OBJECTIVE The aim of the study was to evaluate BP changes in normotensive OSA individuals receiving CPAP treatment. METHODS We selected 131 normotensive outpatients with an apnoea/hypopnoea index (AHI) greater than 15 events/hour who required CPAP treatment. All patients underwent a sleep study and 24-h ambulatory BP monitoring (ABPM) at baseline and after 6 months. In addition, the patients were assessed for the presence of baseline masked hypertension, defined as office BP less than 140/90 mmHg and increased BP on 24-h ABPM (mean 24-h BP ≥130/80 mmHg). RESULTS After 6 months of CPAP treatment, a mild reduction in all 24-h ABPM variables was observed, but only the mean 24-h DBP [-1.39 mmHg, 95% confidence interval (95% CI), -2.50 to -0.27], mean daytime DBP (-1.39 mmHg, 95% CI -2.56 to -0.22) and the mean 24-h ambulatory BP (-1.80 mmHg, 95% CI, -3.16 to -0.44) reached statistical significance. The reduction was primarily due to BP changes in individuals with masked hypertension who displayed a mean BP reduction of -4.78 mmHg (-7.25 to -2.30 mmHg). Consistent with a circadian BP pattern, a reduction in mean nocturnal BP of -4.73 mmHg (-7.39 to -2.06 mmHg) was observed at 6 months in nondippers; in contrast, the mean nocturnal BP in dippers increased by 2.61 mmHg (0.60-4.62 mmHg). CONCLUSION Our findings suggest that the CPAP effects may be different in normotensive outpatients depending on the presence of undiagnosed masked hypertension and the dipping pattern. Therefore, it is important to consider measuring ABPM in this type of patient.
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Affiliation(s)
- Esther Sapiña-Beltrán
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
| | - Fernando Santamaria-Martos
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
| | - Ivan Benítez
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
| | - Gerard Torres
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
| | - Juan F Masa
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid
- Hospital San Pedro de Alcántara, Cáceres, Spain
| | - Manuel Sánchez-de-la-Torre
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid
| | - Ferran Barbé
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid
| | - Mireia Dalmases
- Group of Translational Research in Respiratory Medicine, Hospital Universitari Arnau de Vilanova and Santa Maria, IRBLleida, UdL, Lleida
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid
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Matsumoto T, Tabara Y, Murase K, Setoh K, Kawaguchi T, Nagashima S, Kosugi S, Nakayama T, Wakamura T, Hirai T, Matsuda F, Chin K. Association between sleep disturbance and nocturnal blood pressure profiles by a linear mixed model analysis: the Nagahama study. Sleep Med 2019; 61:104-109. [PMID: 31402214 DOI: 10.1016/j.sleep.2019.01.049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/04/2019] [Accepted: 01/28/2019] [Indexed: 02/08/2023]
Abstract
OBJECTIVES We aimed to analyze associations of sleep disturbance, including sleep disordered breathing, sleep fragmentation, and sleep efficiency, with abnormal nocturnal blood pressure (BP) profiles that may be risk factors for adverse cardiovascular outcomes. METHODS The study included 5854 community residents with 20,725 multi-day measurements. Sleep fragmentation and efficiency were evaluated using a wrist-worn activity monitor. Sleep disordered breathing was assessed using the 3% oxygen desaturation index corrected for actigraphy-determined sleep duration. A timer-equipped standard cuff-oscillometric device was used for home and sleep BP monitoring. RESULTS Mean nocturnal systolic BP (SBP) change was -8.6 ± 9.7% (-11.1 ± 12.6 mmHg), and inter-day correlation coefficient of the nocturnal SBP change was 0.443. Results of a linear mixed model analysis using daily measured values identified lower sleep efficiency (coefficient = -0.130, p < 0.001) as a determinant for decreased nocturnal SBP dipping beyond the interday variations of these parameters. Number of nocturnal urinations was another strong determinant (coefficient = 1.191, p < 0.001), although the association of sleep efficiency was independent of nocturnal urination, awake SBP, and sleep disordered breathing (coefficient = -0.102, p < 0.001). Sleep efficiency was also independently associated with sleep SBP level (coefficient = -0.138, p < 0.001). Estimated differences in nocturnal SBP dipping and sleep SBP level as a function of the degree of sleep efficiency (less than 80%) reached 1.63% (1.09-2.17%) and 2.16 mmHg (1.49-2.82%), respectively. CONCLUSION More attention should be paid to sleep efficiency as a factor in maintaining circadian BP rhythm.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yasuharu Tabara
- Center for Gnomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Kimihiko Murase
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuya Setoh
- Center for Gnomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takahisa Kawaguchi
- Center for Gnomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shunsuke Nagashima
- Department of Human Health Science, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shinji Kosugi
- Department of Medical Ethics and Medical Genetics, Kyoto University School of Public Health, Kyoto, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Tomoko Wakamura
- Department of Human Health Science, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Toyohiro Hirai
- Department of Respiratory Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Fumihiko Matsuda
- Center for Gnomic Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kazuo Chin
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Pang KP, Pang SB, Rotenberg B. Clinical Outcomes in OSA—SLEEP GOAL—a More Holistic Approach. CURRENT OTORHINOLARYNGOLOGY REPORTS 2019. [DOI: 10.1007/s40136-019-00223-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Chadda KR, Ajijola OA, Vaseghi M, Shivkumar K, Huang CLH, Jeevaratnam K. Ageing, the autonomic nervous system and arrhythmia: From brain to heart. Ageing Res Rev 2018; 48:40-50. [PMID: 30300712 DOI: 10.1016/j.arr.2018.09.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/21/2018] [Accepted: 09/30/2018] [Indexed: 02/08/2023]
Abstract
An ageing myocardium possesses significant electrophysiological alterations that predisposes the elderly patient to arrhythmic risk. Whilst these alterations are intrinsic to the cardiac myocytes, they are modulated by the cardiac autonomic nervous system (ANS) and consequently, ageing of the cardiac ANS is fundamental to the development of arrhythmias. A systems-based approach that incorporates the influence of the cardiac ANS could lead to better mechanistic understanding of how arrhythmogenic triggers and substrates interact spatially and temporally to produce sustained arrhythmia and why its incidence increases with age. Despite the existence of physiological oscillations of ANS activity on the heart, pathological oscillations can lead to defective activation and recovery properties of the myocardium. Such changes can be attributable to the decrease in functionality and structural alterations to ANS specific receptors in the myocardium with age. These altered ANS adaptive responses can occur either as a normal ageing process or accelerated in the presence of specific cardiac pathologies, such as genetic mutations or neurodegenerative conditions. Targeted intervention that seek to manipulate the ageing ANS influence on the myocardium may prove to be an efficacious approach for the management of arrhythmia in the ageing population.
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Affiliation(s)
- Karan R Chadda
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7AL, United Kingdom; Physiological Laboratory, University of Cambridge, Downing Street, Cambridge, CB2 3EG, United Kingdom
| | - Olujimi A Ajijola
- UCLA Cardiac Arrhythmia Center, UCLA Health System/David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Marmar Vaseghi
- UCLA Cardiac Arrhythmia Center, UCLA Health System/David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Kalyanam Shivkumar
- UCLA Cardiac Arrhythmia Center, UCLA Health System/David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Christopher L-H Huang
- Physiological Laboratory, University of Cambridge, Downing Street, Cambridge, CB2 3EG, United Kingdom; Department of Biochemistry, Hopkins Building, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
| | - Kamalan Jeevaratnam
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7AL, United Kingdom; Physiological Laboratory, University of Cambridge, Downing Street, Cambridge, CB2 3EG, United Kingdom.
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Somuncu MU, Karakurt ST, Karakurt H, Serbest NG, Cetin MS, Bulut U. The additive effects of OSA and nondipping status on early markers of subclinical atherosclerosis in normotensive patients: a cross-sectional study. Hypertens Res 2018; 42:195-203. [PMID: 30504820 DOI: 10.1038/s41440-018-0143-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/26/2018] [Accepted: 06/06/2018] [Indexed: 11/09/2022]
Abstract
The additive effect of hypertension on carotid atherosclerosis in patients with obstructive sleep apnea (OSA) is well-established; however, the effect of the nondipping pattern has not yet been evaluated. In this study, we aim to assess the effect of the nondipping pattern on carotid atherosclerosis, which is quantified as carotid intima-media thickness (CIMT), and on the high-risk carotid profile in normotensive patients with OSA. We included 189 patients with OSA in this cross-sectional study. We followed a 2 × 2 factorial design to create groups according to the presence of OSA and nondipping pattern. All patients underwent carotid ultrasonography to quantify their CIMT and presence of plaques. Patients who had CIMT ≥ 0.9 mm and/or carotid plaques were classified as having a high-risk carotid profile. Patients in the OSA/nondipper group had a 26% higher CIMT and five times the prevalence of a high-risk carotid profile compared to patients in the non-OSA/dipper group. CIMT was correlated with age, the apnea-hypopnea index (AHI), minimum oxygen saturation, and nighttime systolic blood pressure (SBP). Independent of age, diabetes, and AHI, a one mmHg increase in nighttime SBP was associated with a 0.22 mm increase in CIMT and a 4% increase in odds for the high-risk carotid profile. Similarly, independent of age and diabetes, being in the OSA/nondipper group was associated with 6.7 times increased odds for a high-risk carotid profile than being in the non-OSA/dipper group. Modeling with both the nondipping status and presence of OSA produced an 8% higher discriminative value than modeling with neither of these parameters. We found an additive effect of the nondipping pattern on carotid atherosclerosis in normotensive patients with OSA. Our findings suggested that in addition to having established hypertension, a nondipping pattern in normotensive patients with OSA may aggravate atherosclerosis.
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Affiliation(s)
- Mustafa Umut Somuncu
- Department of Cardiology, Bulent Ecevit University Faculty of Medicine, Zonguldak, Turkey.
| | - Seda Tukenmez Karakurt
- Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | - Huseyin Karakurt
- Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
| | | | - Mehmet Serkan Cetin
- Department of Cardiology, Bulent Ecevit University Faculty of Medicine, Zonguldak, Turkey
| | - Umit Bulut
- Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul, Turkey
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Blood pressure variability and obstructive sleep apnea. A question of phenotype? Hypertens Res 2018; 42:27-28. [DOI: 10.1038/s41440-018-0134-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 01/30/2023]
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de Zambotti M, Trinder J, Silvani A, Colrain IM, Baker FC. Dynamic coupling between the central and autonomic nervous systems during sleep: A review. Neurosci Biobehav Rev 2018; 90:84-103. [PMID: 29608990 PMCID: PMC5993613 DOI: 10.1016/j.neubiorev.2018.03.027] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 02/16/2018] [Accepted: 03/24/2018] [Indexed: 12/19/2022]
Abstract
Sleep is characterized by coordinated cortical and cardiac oscillations reflecting communication between the central (CNS) and autonomic (ANS) nervous systems. Here, we review fluctuations in ANS activity in association with CNS-defined sleep stages and cycles, and with phasic cortical events during sleep (e.g., arousals, K-complexes). Recent novel analytic methods reveal a dynamic organization of integrated physiological networks during sleep and indicate how multiple factors (e.g., sleep structure, age, sleep disorders) affect "CNS-ANS coupling". However, these data are mostly correlational and there is a lack of clarity of the underlying physiology, making it challenging to interpret causality and direction of coupling. Experimental manipulations (e.g., evoking K-complexes or arousals) provide information on the precise temporal sequence of cortical-cardiac activity, and are useful for investigating physiological pathways underlying CNS-ANS coupling. With the emergence of new analytical approaches and a renewed interest in ANS and CNS communication during sleep, future work may reveal novel insights into sleep and cardiovascular interactions during health and disease, in which coupling could be adversely impacted.
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Affiliation(s)
| | - John Trinder
- Melbourne School of Psychological Sciences, University of Melbourne, Parkville, Victoria, Australia.
| | - Alessandro Silvani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy.
| | - Ian M Colrain
- Center for Health Sciences, SRI International, Menlo Park, CA, USA; Melbourne School of Psychological Sciences, University of Melbourne, Parkville, Victoria, Australia.
| | - Fiona C Baker
- Center for Health Sciences, SRI International, Menlo Park, CA, USA; Brain Function Research Group, School of Physiology, University of the Witwatersrand, Johannesburg, South Africa.
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50
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Clinical Conditions and Predictive Markers of Non-Dipper Profile in Hypertensive Patients. ACTA MEDICA MARISIENSIS 2018. [DOI: 10.2478/amma-2018-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Hypertension remains one of the primary causes of premature cardiovascular mortality representing a major independent risk factor.
The importance of ambulatory blood pressure monitoring in clinical evaluation of hypertensive patients, beyond diagnosis, is the identification of circadian dipping/non-dipping profile. The non-dipper pattern in hypertensive and normotensive patients is associated with significant target organ damage and worse outcomes, as an increased cardiovascular risk condition. Non-dipping pattern has been found to be associated with specific clinical conditions. Obesity, diabetes mellitus, metabolic syndrome, obstructive sleep apnea syndrome, chronic kidney disease, autonomic and baroreflex dysfunctions, salt sensitivity, hormonal changes, gender and age were extensively studied. Research efforts are focused on recognizing and exploring predictive markers of abnormal blood pressure circadian pattern. Previous studies acknowledge that red cell distribution width, mean platelet volume, fibrinogen level, C-reactive protein, serum uric acid and gamma-glutamyltransferase, are independently significant and positive associated to non-dipping pattern. Moreover, research on new biomarkers are conducted: Chitinase 3-Like-Protein 1, atrial and B-type natriuretic peptide, brain-derived neurotrophic factor, chemerin, sphingomyelin and the G972R polymorphism of the insulin receptor substrate-1 gene. This review summarizes the current knowledge of different clinical conditions and biomarkers associated with the non-dipper profile in hypertensive patients.
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