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Kovbasyuk Z, Ramos-Cejudo J, Parekh A, Bubu OM, Ayappa IA, Varga AW, Chen MH, Johnson AD, Gutierrez-Jimenez E, Rapoport DM, Osorio RS. Obstructive Sleep Apnea, Platelet Aggregation, and Cardiovascular Risk. J Am Heart Assoc 2024; 13:e034079. [PMID: 39056328 DOI: 10.1161/jaha.123.034079] [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] [Received: 12/29/2023] [Accepted: 05/31/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND Although related, the precise mechanisms linking obstructive sleep apnea (OSA) and cardiovascular disease (CVD) are unclear. Platelets are mediators of CVD risk and thrombosis and prior studies suggested associations of OSA and platelet activity. The aim of this study is to assess the link between OSA, platelet activity, and CVD-related risk factors. METHODS AND RESULTS We studied the association of OSA-measures and platelet aggregation in participants dually enrolled in the SHHS (Sleep Heart and Health Study) and FHS (Framingham Heart Study). We applied linear regression models with adjustment for demographic and clinical covariates and explored interactions with OSA and CVD-related factors, including age, sex, body mass index, hypertension, OSA diagnosis (apnea-hypopnea index 4%≥5), and aspirin use. Our final sample was of 482 participants (60 years [14.00], 50.4% female). No associations were observed between apnea-hypopnea index 4% and platelet aggregation in the main sample. Stratified analysis revealed an association in aspirin users (n=65) for our primary exposure (apnea-hypopnea index 4%, β=0.523; P<0.001; n=65), and secondary exposures: hypoxic burden (β=0.358; P<0.001), minimum saturation (β=-0.519; P=0.026), and oxygen desaturation index 3% (β=74.672; P=0.002). No associations were detected in nonaspirin users (n=417). CONCLUSIONS No associations were detected between OSA and platelet aggregation in a community sample. Our finding that OSA associates with increased platelet aggregation in the aspirin group, most of whom use it for primary prevention of CVD, suggests that platelet aggregation may mediate the adverse impact of OSA on vascular health in individuals with existing CVD risk, supporting further investigation.
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Affiliation(s)
- Zanetta Kovbasyuk
- Healthy Brain Aging and Sleep Center Department of Psychiatry New York University Langone Medical Center New York City NY
| | - Jaime Ramos-Cejudo
- Division of Brain Aging Department of Psychiatry New York University Grossman School of Medicine New York City NY
| | - Ankit Parekh
- Division of Pulmonary Critical Care and Sleep Medicine Icahn School of Medicine at Mount Sinai New York City NY
| | - Omonigho M Bubu
- Healthy Brain Aging and Sleep Center Department of Psychiatry New York University Langone Medical Center New York City NY
| | - Indu A Ayappa
- Division of Pulmonary Critical Care and Sleep Medicine Icahn School of Medicine at Mount Sinai New York City NY
| | - Andrew W Varga
- Division of Pulmonary Critical Care and Sleep Medicine Icahn School of Medicine at Mount Sinai New York City NY
| | - Ming-Huei Chen
- Population Sciences Branch National Heart, Lung, and Blood Institute Framingham MA
| | - Andrew D Johnson
- Population Sciences Branch National Heart, Lung, and Blood Institute Framingham MA
| | | | - David M Rapoport
- Division of Brain Aging Department of Psychiatry New York University Grossman School of Medicine New York City NY
| | - Ricardo S Osorio
- Healthy Brain Aging and Sleep Center Department of Psychiatry New York University Langone Medical Center New York City NY
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2
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Chen B, Dong L, Zhang J, Hao Y, Chi W, Song D. Exploring shared pathways and the shared biomarker ERRFI1 in Obstructive sleep apnoea and atherosclerosis using integrated bioinformatics analysis. Sci Rep 2023; 13:15103. [PMID: 37699925 PMCID: PMC10497545 DOI: 10.1038/s41598-023-42184-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023] Open
Abstract
Obstructive sleep apnea (OSA) is an upper airway disorder occurring during sleep and is associated with atherosclerosis (AS). AS is a cardiovascular disease caused by environmental and genetic factors, with a high global mortality rate. This study investigated common pathways and potential biomarkers of OSA and AS. Microarray data were downloaded from the Gene Expression Omnibus (GEO) database and used to screen for differentially expressed genes (DEGs) in the OSA and AS datasets. A weighted gene co-expression network analysis (WGCNA) was used to identify the co-expression modules of OSA and AS. The least absolute shrinkage and selection operators (LASSO) were used to determine critical biomarkers. Immune cell infiltration analysis was used to investigate the correlation between immune cell infiltration and common biomarkers of OSA and AS. Results revealed that differentially expressed genes may be involved in inflammatory processes, chemokine signaling pathways, and molecular changes in cell adhesion. ERBB receptor feedback inhibitor 1 (ERRFI1) was the best-shared biomarker for OSA and AS. Immune infiltration analysis showed that ERRFI1 expression was correlated with immune cell changes. Changes in immune pathways, inflammatory processes, and cell adhesion molecules may underlie the pathogenesis of both diseases, and ERRFI1 may be a potential diagnostic marker for patients with OSA and AS.
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Affiliation(s)
- Bowen Chen
- Clinical Biobank, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Liping Dong
- Clinical Biobank, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jihua Zhang
- Department of Otolaryngology, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ying Hao
- Clinical Biobank, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Weiwei Chi
- Clinical Biobank, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Dongmei Song
- Clinical Biobank, The First Hospital of Hebei Medical University, Shijiazhuang, China.
- Department of Otolaryngology, The First Hospital of Hebei Medical University, Shijiazhuang, China.
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3
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Chen J, Cao Y, Li Z, Dong L. Association Between the Severity of Obstructive Sleep Apnea and the Risk Stratification of Acute Pulmonary Embolism. Clin Appl Thromb Hemost 2023; 29:10760296231175654. [PMID: 37365833 DOI: 10.1177/10760296231175654] [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: 06/28/2023] Open
Abstract
Obstructive sleep apnea (OSA) has been associated with the initiation and progression of cardiovascular disease. This study aimed to explore the relationship between the severity of OSA and the risk stratification of acute pulmonary embolism (PE). In this single-center cohort study, patients diagnosed with PE were evaluated for OSA via polygraphy monitoring. The simplified PE severity index (sPESI) and the number of patients requiring systemic thrombolysis were used to determine the severity of the disease. Echocardiography was performed on all participants. All patients were divided into 2 groups (OSA group and non-OSA group), and the patients in OSA group were then divided into 3 groups based on the severity of OSA. Patients with severe OSA had a significantly higher number of patients with sPESI ≥ 1 (P = .005). A higher proportion of patients with severe OSA require systemic thrombolysis (P = .010). Patients with apnea-hypopnea index (AHI) > 30/h had a much higher fibrinogen (P = .004) and D-dimer (P = .040) level than those in the non-OSA group. The levels of creatinine were significantly higher in patients with OSA (P = .040). Echocardiography showed a significant difference in left ventricular ejection fraction (LVEF) between patients in non-OSA and severe OSA groups (P = .035). And brain natriuretic peptide (BNP) also exhibited a progressive worsening related to the deepest desaturation and oxygen desaturation index. OSA, especially with AHI > 30/h, is correlated with the severity and prognosis of acute PE. This might be attributed to the prothrombotic effect, renal impairment, and cardiac dysfunction in patients with severe OSA.
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Affiliation(s)
- Jiayue Chen
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Yaoqian Cao
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Zhishu Li
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Lixia Dong
- Department of Respiratory and Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
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4
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Chen M, Wang B, Huang J, Zhao J, Chen J, Chen G. The role of platelet-related parameters for the prediction of NAFLD in OSAHS patients. BMC Pulm Med 2022; 22:487. [PMID: 36566219 DOI: 10.1186/s12890-022-02291-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
PURPOSE As the detection of non-alcoholic fatty liver disease (NAFLD) is imperative for the prevention of its complications, we aimed to explore the predictive value of platelet to lymphocyte count ratio (PLR) and white blood cell count to mean platelet volume ratio (WBC/MPV) in relation to the occurrence of NAFLD among patients with obstructive sleep apnea-hypopnea syndrome (OSAHS). METHODS This was a cross-sectional study consisting of 351 patients with OSAHS (279 with and 72 without NAFLD). The logistic regression analysis was performed to estimate associations between PLR, WBC/MPV, and NAFLD. Finally, the receiver operating characteristic curve (ROC curve) was used to analyze the efficacy of PLR and WBC/MPV in NAFLD prediction. RESULTS Compared to the OSAHS-only group, there was a rising trend in AHI and TS90% in the OSAHS + NAFLD group. And the logistic regression analysis identified average oxygen saturation (MaSO2), WBC/MPV and PLR as predicted factors (odds ratio [OR] = 1.134, P = 0.031; OR = 7.559, P = 0.018, OR = 0.980, P < 0.001, respectively) for NAFLD in OSAHS patients. Moreover, compared with WBC/MPV, PLR, FLI, and APRI, a combination of WBC/MPV and PLR presented the largest AUC for the detection of NAFLD in BMI < 28 kg/m2 (0.753, 95% CI 0.684-0.822), and in age ≥ 60 years subgroup (0.786, 95% CI 0.692-0.880) in ROC analysis. Meanwhile, a combination of WBC/MPV and PLR presented the second largest AUC for the detection of NAFLD in all subjects (0.743, 95% CI 0.708-0.831), as well as in the age < 60 years subgroup (0.729, 95% CI 0.652-0.806), only ranked after FLI, suggesting the combination of WBC/MPV and PLR has a good predictive value for NAFLD in OSAHS patients. CONCLUSION We confirmed that the levels of WBC/MPV, PLR, and MaSO2 were closely related to the occurrence of NAFLD among OSAHS patients. Furthermore, our results highlighted the clinical combination of WBC/MPV and PLR levels could act as a simple and effective biomarker for screening NAFLD in patients with OSAHS.
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Affiliation(s)
- Menglan Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China
| | - Biying Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China
| | - Jiefeng Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China
| | - Jianming Zhao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China
| | - Jia Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China.,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China
| | - Gongping Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China. .,Fujian Provincial Sleep-Disordered Breathing Clinic Center, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China. .,Institute of Respiratory Disease, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian Province, People's Republic of China. .,Department of Respiratory and Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, 350212, Fujian Province, People's Republic of China.
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Luo B, Li Y, Zhu M, Cui J, Liu Y, Liu Y. Intermittent Hypoxia and Atherosclerosis: From Molecular Mechanisms to the Therapeutic Treatment. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1438470. [PMID: 35965683 PMCID: PMC9365608 DOI: 10.1155/2022/1438470] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/12/2022] [Accepted: 07/20/2022] [Indexed: 12/24/2022]
Abstract
Intermittent hypoxia (IH) has a dual nature. On the one hand, chronic IH (CIH) is an important pathologic feature of obstructive sleep apnea (OSA) syndrome (OSAS), and many studies have confirmed that OSA-related CIH (OSA-CIH) has atherogenic effects involving complex and interacting mechanisms. Limited preventive and treatment methods are currently available for this condition. On the other hand, non-OSA-related IH has beneficial or detrimental effects on the body, depending on the degree, duration, and cyclic cycle of hypoxia. It includes two main states: intermittent hypoxia in a simulated plateau environment and intermittent hypoxia in a normobaric environment. In this paper, we compare the two types of IH and summarizes the pathologic mechanisms and research advances in the treatment of OSA-CIH-induced atherosclerosis (AS), to provide evidence for the systematic prevention and treatment of OSAS-related AS.
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Affiliation(s)
- Binyu Luo
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Yiwen Li
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Mengmeng Zhu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jing Cui
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Yanfei Liu
- The Second Department of Gerontology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Yue Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
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6
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Practical Considerations of Dissolved Oxygen Levels for Platelet Function under Hypoxia. Int J Mol Sci 2021; 22:ijms222413223. [PMID: 34948023 PMCID: PMC8703370 DOI: 10.3390/ijms222413223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 11/17/2022] Open
Abstract
Investigating human platelet function in low-oxygen environments is important in multiple settings, including hypobaric hypoxia (e.g., high altitude), sea level hypoxia-related disease, and thrombus stability. These studies often involve drawing blood from which platelets are isolated and analysed at atmospheric conditions or re-exposed to low oxygen levels in hypoxia chambers before testing. However, it remains unknown how the in vitro handling of the samples itself changes their dissolved oxygen concentration, which might affect platelet function and experimental results. Here, we prepared healthy donor platelet-rich plasma and washed platelet (WP) suspensions and exposed them to 2% oxygen. We found that the use of hypoxia pre-equilibrated tubes, higher platelet concentrations (>2 × 108/mL versus 2 × 107/mL), smaller volumes (600 µL versus 3 mL), and presence of plasma reduced the time for samples to reach 2% oxygen. Notably, oxygen levels decreased below 2% in most suspensions, but also in WP maintained at atmospheric 21% oxygen. Additionally, platelet spreading on fibrinogen was decreased when using hypoxic fibrinogen-coated culture plates regardless of the oxygen percentage (2% or 21%) in which platelet incubation took place. Thus, sample handling and experimental conditions should be carefully monitored in platelet-hypoxia studies as they might compromise results interpretation and comparison across studies.
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7
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Probable Change of Sleep Parameters after Resection and Reconstruction Surgeries in Patients with Oral Cavity or Oropharyngeal Cancers. BIOMED RESEARCH INTERNATIONAL 2021; 2021:7408497. [PMID: 34631887 PMCID: PMC8500743 DOI: 10.1155/2021/7408497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 09/22/2021] [Indexed: 11/17/2022]
Abstract
In patients of oral cavity or oropharyngeal cancers, resection of the tumor and reconstruction of the defect may reduce the framework, add a bulky flap, alter the tissue flexibility, and contribute to postoperative obstructive sleep apnea (OSA). Postoperative OSA and the potential consequences may decrease the survival rate and reduce patients' quality of life. It is unclear whether the surgery is associated with postoperative OSA. Here, we compared the polysomnographies (PSGs) before and after the surgery in 15 patients of oral cavity or oropharyngeal cancers (out of 68 patients of head and neck cancers) without a chemo- or radio-therapy. Each patient received the second PSG before the start of any indicated adjuvant therapy to prevent its interference. There were 14 men and 1 woman, with a mean age and a standard deviation (SD, same in the following) of 56.2 ± 12.8 years. There were 6 tongue cancers, 5 buccal cancers, 2 tonsil cancer, 1 lower gum cancer, and 1 trigone cancer. The results show that the surgery changed sleep parameters insignificantly in apnea-hypopnea index (AHI), mean oxyhemoglobin saturation of pulse oximetry (SpO2), minimum SpO2, mean desaturation, and desaturation index but increased mean heart rate in the patients with free flaps. These results hint that the effect of surgery on developing OSA was small in this sample, with a longer plate or a larger framework for a bulkier free flap. It needs future studies with a large sample size to generalize this first observation.
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Zolotoff C, Bertoletti L, Gozal D, Mismetti V, Flandrin P, Roche F, Perek N. Obstructive Sleep Apnea, Hypercoagulability, and the Blood-Brain Barrier. J Clin Med 2021; 10:jcm10143099. [PMID: 34300265 PMCID: PMC8304023 DOI: 10.3390/jcm10143099] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 02/07/2023] Open
Abstract
Obstructive sleep apnea (OSA) is characterized by repeated episodes of intermittent hypoxia (IH) and is recognized as an independent risk factor for vascular diseases that are mediated by a multitude of mechanistic pathophysiological cascades including procoagulant factors. The pro-coagulant state contributes to the development of blood clots and to the increase in the permeability of the blood-brain barrier (BBB). Such alteration of BBB may alter brain function and increase the risk of neurodegenerative diseases. We aim to provide a narrative review of the relationship between the hypercoagulable state, observed in OSA and characterized by increased coagulation factor activity, as well as platelet activation, and the underlying neural dysfunction, as related to disruption of the BBB. We aim to provide a critical overview of the existing evidence about the effect of OSA on the coagulation balance (characterized by increased coagulation factor activity and platelet activation) as on the BBB. Then, we will present the emerging data on the effect of BBB disruption on the risk of underlying neural dysfunction. Finally, we will discuss the potential of OSA therapy on the coagulation balance and the improvement of BBB.
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Affiliation(s)
- Cindy Zolotoff
- U1059, Sainbiose, Dysfonction Vasculaire et Hémostase, Université de Lyon, Université Jean Monnet Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France; (L.B.); (F.R.); (N.P.)
- Correspondence: ; Tel.: +33-477-421-452
| | - Laurent Bertoletti
- U1059, Sainbiose, Dysfonction Vasculaire et Hémostase, Université de Lyon, Université Jean Monnet Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France; (L.B.); (F.R.); (N.P.)
- Service de Médecine Vasculaire et Thérapeutique, CHU Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France
| | - David Gozal
- Department of Child Health and the Child Health Research Institute, MU Women’s and Children’s Hospital, University of Missouri, Columbia, MO 65201, USA;
| | - Valentine Mismetti
- Service de Pneumologie et d’Oncologie Thoracique, CHU Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France;
| | - Pascale Flandrin
- Laboratoire d’Hématologie, Hôpital Nord, CHU Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France;
| | - Frédéric Roche
- U1059, Sainbiose, Dysfonction Vasculaire et Hémostase, Université de Lyon, Université Jean Monnet Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France; (L.B.); (F.R.); (N.P.)
- Service de Physiologie Clinique et de l’Exercice, Centre VISAS, CHU Saint Etienne, F-42270 Saint-Priest-en-Jarez, France
| | - Nathalie Perek
- U1059, Sainbiose, Dysfonction Vasculaire et Hémostase, Université de Lyon, Université Jean Monnet Saint-Étienne, F-42270 Saint-Priest-en-Jarez, France; (L.B.); (F.R.); (N.P.)
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Voulgaris A, Archontogeorgis K, Steiropoulos P, Papanas N. Cardiovascular Disease in Patients with Chronic Obstructive Pulmonary Disease, Obstructive Sleep Apnoea Syndrome and Overlap Syndrome. Curr Vasc Pharmacol 2021; 19:285-300. [PMID: 32188387 DOI: 10.2174/1570161118666200318103553] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and obstructive sleep apnoea syndrome (OSAS) are among the most prevalent chronic respiratory disorders. Accumulating data suggest that there is a significant burden of cardiovascular disease (CVD) in patients with COPD and OSAS, affecting negatively patients' quality of life and survival. Overlap syndrome (OS), i.e. the co-existence of both COPD and OSAS in the same patient, has an additional impact on the cardiovascular system multiplying the risk of morbidity and mortality. The underlying mechanisms for the development of CVD in patients with either OSAS or COPD and OS are not entirely elucidated. Several mechanisms, in addition to smoking and obesity, may be implicated, including systemic inflammation, increased sympathetic activity, oxidative stress and endothelial dysfunction. Early diagnosis and proper management of these patients might reduce cardiovascular risk and improve patients' survival. In this review, we summarize the current knowledge regarding epidemiological aspects, pathophysiological mechanisms and present point-to-point specific associations between COPD, OSAS, OS and components of CVD, namely, pulmonary hypertension, coronary artery disease, peripheral arterial disease and stroke.
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Affiliation(s)
- A Voulgaris
- MSc Programme in Sleep Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - K Archontogeorgis
- MSc Programme in Sleep Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - P Steiropoulos
- MSc Programme in Sleep Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - N Papanas
- Diabetes Centre, Second Department of Internal Medicine, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
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10
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Mochol J, Gawrys J, Gajecki D, Szahidewicz-Krupska E, Martynowicz H, Doroszko A. Cardiovascular Disorders Triggered by Obstructive Sleep Apnea-A Focus on Endothelium and Blood Components. Int J Mol Sci 2021; 22:5139. [PMID: 34066288 PMCID: PMC8152030 DOI: 10.3390/ijms22105139] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/19/2022] Open
Abstract
Obstructive sleep apnea (OSA) is known to be an independent cardiovascular risk factor. Among arousal from sleep, increased thoracic pressure and enhanced sympathetic activation, intermittent hypoxia is now considered as one of the most important pathophysiological mechanisms contributing to the development of endothelial dysfunction. Nevertheless, not much is known about blood components, which justifies the current review. This review focuses on molecular mechanisms triggered by sleep apnea. The recurrent periods of hypoxemia followed by reoxygenation promote reactive oxygen species (ROS) overproduction and increase inflammatory response. In this review paper we also intend to summarize the effect of treatment with continuous positive airway pressure (CPAP) on changes in the profile of the endothelial function and its subsequent potential clinical advantage in lowering cardiovascular risk in other comorbidities such as diabetes, atherosclerosis, hypertension, atrial fibrillation. Moreover, this paper is aimed at explaining how the presence of OSA may affect platelet function and exert effects on rheological activity of erythrocytes, which could also be the key to explaining an increased risk of stroke.
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Affiliation(s)
| | | | | | | | | | - Adrian Doroszko
- Department of Internal Medicine, Hypertension and Clinical Oncology, Faculty of Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland; (J.M.); (J.G.); (D.G.); (E.S.-K.); (H.M.)
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11
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Bikov A, Meszaros M, Schwarz EI. Coagulation and Fibrinolysis in Obstructive Sleep Apnoea. Int J Mol Sci 2021; 22:ijms22062834. [PMID: 33799528 PMCID: PMC8000922 DOI: 10.3390/ijms22062834] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 12/29/2022] Open
Abstract
Obstructive sleep apnoea (OSA) is a common disease which is characterised by repetitive collapse of the upper airways during sleep resulting in chronic intermittent hypoxaemia and frequent microarousals, consequently leading to sympathetic overflow, enhanced oxidative stress, systemic inflammation, and metabolic disturbances. OSA is associated with increased risk for cardiovascular morbidity and mortality, and accelerated coagulation, platelet activation, and impaired fibrinolysis serve the link between OSA and cardiovascular disease. In this article we briefly describe physiological coagulation and fibrinolysis focusing on processes which could be altered in OSA. Then, we discuss how OSA-associated disturbances, such as hypoxaemia, sympathetic system activation, and systemic inflammation, affect these processes. Finally, we critically review the literature on OSA-related changes in markers of coagulation and fibrinolysis, discuss potential reasons for discrepancies, and comment on the clinical implications and future research needs.
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Affiliation(s)
- Andras Bikov
- North West Lung Centre, Manchester University NHS Foundation Trust, Manchester M23 9LT, UK
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, Manchester M13 9MT, UK
- Correspondence: ; Tel.: +44-161-291-2493; Fax: +44-161-291-5730
| | - Martina Meszaros
- Department of Pulmonology, Semmelweis University, 1083 Budapest, Hungary;
- Department of Pulmonology and Sleep Disorders Centre, University Hospital Zurich, 8006 Zurich, Switzerland;
| | - Esther Irene Schwarz
- Department of Pulmonology and Sleep Disorders Centre, University Hospital Zurich, 8006 Zurich, Switzerland;
- Centre of Competence Sleep & Health Zurich, University of Zurich, 8091 Zurich, Switzerland
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12
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A Non-Framework Multilevel Surgery May Reduce Mean Heart Rate in Patients with Very Severe Obstructive Apnea Having Confined Retroglossal Space and Framework. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228094] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An elevated mean heart rate in untreated patients of obstructive sleep apnea (OSA) may lead to a higher risk of mortality and the development of various cardiovascular diseases. The elevation may positively relate to the severity of OSA and present in both wakefulness and sleep. A reduction in heart rate has been presented in reports of treating OSA patients with continuous positive airway pressure (CPAP). However, patients with very severe OSA may refuse use of CPAP devices and advocated surgeries, such as direct skeletal surgery or tracheostomy. It is unclear whether the non-framework multilevel surgery we reported previously can overcome the unfavorable anatomy and reduce mean heart rate, which serves as a risk factor of mortality. Here, we show that multilevel surgery reduced the mean heart rate from 68.6 to 62.7 with a mean reduction of 5.9 beats/min. The results suggest that the surgery may reduce the risk of consequences and mortality associated with an elevated mean heart rate, such as various cardiovascular diseases. We disclose these findings, along with the variations and possible risks to our future patients with very severe OSA who refuse or cannot use a CPAP device or reject direct skeletal surgery.
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13
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Tokuda H, Kusunose M, Senda K, Kojima K, Onuma T, Kojima A, Mizutani D, Enomoto Y, Iwama T, Iida H, Kozawa O. The release of phosphorylated-HSP27 from activated platelets of obstructive sleep apnea syndrome (OSAS) patients. Respir Investig 2020; 58:117-127. [PMID: 31838041 DOI: 10.1016/j.resinv.2019.10.006] [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: 07/17/2019] [Revised: 10/17/2019] [Accepted: 10/31/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Obstructive sleep apnea syndrome (OSAS) is a well known risk of arterial thrombosis that results in cardiovascular morbidity. It has been reported that platelet aggregability is enhanced in patients with OSAS. In the present study, we investigated whether phosphorylated-HSP27 is released from the activated platelets of OSAS patients. METHODS Patients diagnosed with OSAS (n = 21) were recruited, and platelet-rich plasma (PRP) was stimulated by ADP, ristosetin, collagen, and thrombin receptor-activating peptide. Platelet aggregation was measured using an aggregometer with a laser-scattering system. The levels of protein phosphorylation and the released levels of phosphorylated-HSP27 were determined by Western blot analysis and an ELISA, respectively. RESULTS The phosphorylation of HSP27 in the platelets was induced by the stimulators. The released levels of phosphorylated-HSP27 was correlated with the levels of phosphorylated-HSP27 stimulated by ADP or collagen. The levels of ADP-induced phosphorylated-HSP27 were correlated with those of both phosphorylated-protein kinase B (Akt) and phosphorylatd-p38 mitogen-activated protein kinase; however, the levels of phosphorylated-HSP27 stimulated by collagen were correlated with phosphorylated-Akt levels only. The ED50 value of ADP on the platelet aggregation in OSAS (1.067 ± 0.128 μM) was lower than that in healthy subjects (1.778 ± 0.122 μM) and was inversely correlated with both the value of minimum SpO2 and the released level of phosphorylated-HSP27 stimulated by ADP. CONCLUSION The results strongly suggest that phosphorylated-HSP27 is released from the activated platelets of OSAS patients.
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Affiliation(s)
- Haruhiko Tokuda
- Department of Clinical Laboratory/Biobank of Medical Genome Center, National Center for Geriatrics and Gerontology, Obu, 474-8511, Japan; Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan.
| | - Masaaki Kusunose
- Department of Respiratory Medicine, National Center for Geriatrics and Gerontology, Obu, 474-8511, Japan
| | - Kazuyoshi Senda
- Department of Respiratory Medicine, National Center for Geriatrics and Gerontology, Obu, 474-8511, Japan
| | - Kumi Kojima
- Department of Clinical Laboratory/Biobank of Medical Genome Center, National Center for Geriatrics and Gerontology, Obu, 474-8511, Japan
| | - Takashi Onuma
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Akiko Kojima
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Daisuke Mizutani
- Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Yukiko Enomoto
- Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Toru Iwama
- Department of Neurosurgery, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Hiroki Iida
- Department of Anesthesiology and Pain Medicine, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
| | - Osamu Kozawa
- Department of Pharmacology, Gifu University Graduate School of Medicine, Gifu, 501-1194, Japan
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14
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Krieger AC, Anand R, Hernandez-Rosa E, Maidman A, Milrad S, DeGrazia MQ, Choi AJ, Oromendia C, Marcus AJ, Drosopoulos JHF. Increased platelet activation in sleep apnea subjects with intermittent hypoxemia. Sleep Breath 2020; 24:1537-1547. [PMID: 32036486 DOI: 10.1007/s11325-020-02021-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 01/10/2020] [Accepted: 01/27/2020] [Indexed: 01/30/2023]
Abstract
PURPOSE Obstructive sleep apnea (OSA) is independently associated with increased risk for stroke and other cardiovascular diseases. Since activated platelets play an important role in cardiovascular disease, the objective of this study was to determine whether platelet reactivity was altered in OSA subjects with intermittent nocturnal hypoxemia. METHODS Thirty-one subjects, without hypertension or cardiovascular disease and not taking medication, participated in the study. Subjects were stratified based on OSA-related oxygen desaturation index (ODI) recorded during overnight polysomnography. Platelet reactivity to a broad panel of agonists (collagen, thrombin, protease-activated receptor1 hexapeptide, epinephrine, ADP) was measured by monitoring platelet aggregation and ATP secretion. Expression of platelet activation markers CD154 (CD40L) and CD62P (P-selectin) and platelet-monocyte aggregates (PMA) was quantified by flow cytometry. RESULTS Epinephrine-induced platelet aggregation was substantially decreased in OSA subjects with significant intermittent hypoxemia (ODI ≥ 15) compared with subjects with milder hypoxemia levels (ODI < 15) (area under curve, p = 0.01). In addition, OSA subjects with ODI ≥ 15 exhibited decreased thrombin-induced platelet aggregation (p = 0.02) and CD40L platelet surface expression (p = 0.05). Platelet responses to the other agonists, CD62P platelet surface expression, and PMA levels were not significantly different between groups. Reduction in platelet responses to epinephrine and thrombin, and decreased CD40L surface marker expression in significant hypoxemic OSA individuals, is consistent with their platelets being in an activated state. CONCLUSIONS Increased platelet activation was present in otherwise healthy subjects with intermittent nocturnal hypoxemia due to underlying OSA. This prothrombotic milieu in the vasculature is likely a key contributing factor toward development of thrombosis and cardiovascular disease. TRIAL REGISTRATION NCT00859950.
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Affiliation(s)
- Ana C Krieger
- Department of Neurology, Weill Cornell Medicine, New York, NY, 10065, USA.,Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Ranjini Anand
- Thrombosis Research Laboratory, Research Service, VA New York Harbor Healthcare System, 423 East 23rd Street, Room 13026W, New York, NY, 10010, USA.,Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medicine, New York, NY, 10065, USA.,Medical Department, PureSinse Inc., Mississauga, ON, L4W 5K4, Canada
| | - Evelyn Hernandez-Rosa
- Thrombosis Research Laboratory, Research Service, VA New York Harbor Healthcare System, 423 East 23rd Street, Room 13026W, New York, NY, 10010, USA.,Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medicine, New York, NY, 10065, USA.,Department of Pathology, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, 10032, USA
| | - Allison Maidman
- Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA.,Department of Pediatrics, NYU Langone Hospital, Brooklyn, NY, 11220, USA
| | - Sara Milrad
- Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA.,Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, 33431, USA
| | - Miles Q DeGrazia
- Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Alexander J Choi
- Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA.,University of Michigan Medical School, Ann Arbor, MI, 48109, USA
| | - Clara Oromendia
- Department of Healthcare Policy and Research, Division of Biostatistics and Epidemiology, Weill Cornell Medicine, New York, NY, 10065, USA.,Project Rōnin Inc., San Mateo, CA, 94401, USA
| | - Aaron J Marcus
- Thrombosis Research Laboratory, Research Service, VA New York Harbor Healthcare System, 423 East 23rd Street, Room 13026W, New York, NY, 10010, USA.,Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medicine, New York, NY, 10065, USA.,Department of Pathology and Laboratory Medicine, Division of Hematology/Oncology, Weill Cornell Medicine, New York, NY, 10065, USA
| | - Joan H F Drosopoulos
- Thrombosis Research Laboratory, Research Service, VA New York Harbor Healthcare System, 423 East 23rd Street, Room 13026W, New York, NY, 10010, USA. .,Department of Medicine, Division of Hematology/Oncology, Weill Cornell Medicine, New York, NY, 10065, USA.
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15
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Naito A, Sakao S, Terada J, Iwasawa S, Jujo Sanada T, Suda R, Kasai H, Sekine A, Nishimura R, Sugiura T, Shigeta A, Tanabe N, Tatsumi K. Nocturnal Hypoxemia and High Circulating TNF-α Levels in Chronic Thromboembolic Pulmonary Hypertension. Intern Med 2020; 59:1819-1826. [PMID: 32741891 PMCID: PMC7475001 DOI: 10.2169/internalmedicine.4458-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective Chronic thromboembolic pulmonary hypertension (CTEPH) is a form of pulmonary hypertension caused by persistent thromboemboli of the pulmonary arteries, and one of its etiological factors may be inflammation. Sleep disordered breathing (SDB) is reportedly an important complication of pulmonary hypertension. However, the association between SDB and inflammation in CTEPH has been undefined. This prospective observational study analyzed the association between the severity of SDB, pulmonary hemodynamic parameters and the systemic inflammation level in patients with CTEPH. Methods CTEPH patients admitted for a right heart catheter (RHC) examination were consecutively enrolled from November 2017 to June 2019 at the pulmonary hypertension center in Chiba University Hospital. Patients with idiopathic pulmonary arterial hypertension (IPAH) were also enrolled as a control group. All patients underwent a sleep study using a WatchPAT 200 during admission. Results The CTEPH patients showed worse nocturnal hypoxemia, oxygen desaturation index (ODI), and apnea-hypopnea index than the IPAH patients. Among these factors, only the nocturnal mean percutaneous oxygen saturation (SpO2) was negatively correlated with the pulmonary hemodynamic parameters. The circulating tumor necrosis factor-alpha (TNF-α) level was also high in the CTEPH group, and a multivariate analysis showed that the nocturnal mean SpO2 was the most important predictive factor for a high TNF-α level. Conclusion We showed that CTEPH patients had high serum TNF-α levels and that the nocturnal mean SpO2 was a predictive factor for serum TNF-α levels. Further investigations focused on nocturnal hypoxemia and the TNF-α level may provide novel insight into the etiology and new therapeutic strategies for CTEPH.
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Affiliation(s)
- Akira Naito
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Seiichiro Sakao
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Jiro Terada
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Shunichiro Iwasawa
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | | | - Rika Suda
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Hajime Kasai
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Ayumi Sekine
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Rintaro Nishimura
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Toshihiko Sugiura
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Ayako Shigeta
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Nobuhiro Tanabe
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
- Pulmonary Hypertension Center, Chibaken Saiseikai Narashino Hospital, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
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16
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Bocquillon V, Destors M, Guzun R, Doutreleau S, Pépin JL, Tamisier R. [Cardiac dysfunction and the obstructive sleep apnoea syndrome]. Rev Mal Respir 2019; 37:161-170. [PMID: 31866122 DOI: 10.1016/j.rmr.2019.07.011] [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: 12/06/2018] [Accepted: 07/04/2019] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Cardiac insufficiency affects nearly 2% of the population with increased morbidity/mortality despite advances in therapeutic management. The sleep apnoea syndrome (SAS) is a risk factor for, and cause of aggravation of, myocardial dysfunction. BACKGROUND SAS is found in 70% of patients with chronic cardiac failure, 65% of patients with refractory hypertension, 60% of patients with cerebro-vascular accidents and 50% of patients with atrial fibrillation. The associated cardiovascular mortality is multiplied by a factor of 2 to 3. The pathophysiological mechanisms are intermittent nocturnal hypoxia, variations in CO2 levels, variations in intrathoracic pressure and repeated arrousals from sleep, concurrent with sympathetic hyperactivity, endothelial dysfunction and systemic inflammation. CONCLUSIONS SAS and cardiological management in patients presenting with myocardial dysfunction should be combined. It is necessary to pursue the scientific investigations with the aim of determining a precise care pathway and the respective places of each of the cardiological and pulmonary measures.
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Affiliation(s)
- V Bocquillon
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - M Destors
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - R Guzun
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - S Doutreleau
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - J L Pépin
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France
| | - R Tamisier
- Inserm 1042, laboratoire HP2, Université Grenoble-Alpes, 38000 Grenoble, France; Pôle thorax et vaisseaux, clinique de physiologie sommeil et exercice, CHU de Grenoble-Alpes, 38000 Grenoble, France.
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17
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Abstract
PURPOSE OF REVIEW To review the clinical evidence for a relationship between obstructive sleep apnea and hypertension, arrhythmias, coronary artery disease, and congestive heart failure. RECENT FINDINGS Current data show that obstructive sleep apnea is a risk for cardiovascular disease. Studies have linked untreated moderate to severe obstructive sleep apnea to hypertension, cardiac arrhythmias, coronary artery disease, and congestive heart failure. However, uncertainty regarding benefits of treatment of obstructive sleep apnea to reduce the risk of cardiovascular disease still exists. The issue of poor compliance has been an on-going limitation of CPAP trials. Evidence shows obstructive sleep apnea is a risk factor for cardiovascular disease but trials have yet to clarify if cardiovascular disease morbidity and mortality decreases with treatment of the apnea. Future treatment trials are needed to address the question of whether treatment decreases cardiovascular risk in patients with obstructive sleep apnea.
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18
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Xia Y, You K, Xiong Y, Jiang H. Sleep-Disordered Breathing and Peripheral Arterial Disease: Current Evidence. EAR, NOSE & THROAT JOURNAL 2019; 100:185-191. [PMID: 31547705 DOI: 10.1177/0145561319872168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Sleep-disordered breathing (SDB) is associated with atherosclerosis. Peripheral arterial disease (PAD) is a manifestation of atherosclerosis in lower extremity arteries. No systematic review addressing the relationship between PAD and SDB was found. We performed this study aimed to summarize the relationship between SDB and PAD described in current clinical studies. MATERIAL AND METHODS PubMed and Embase electronic databases were searched for clinical articles (published before 3 April, 2019) describing studies that evaluated the association between SDB and PAD. We showed the results involved in the association in clinical studies. RESULTS In total, 8 clinical studies have been included, and most of them were cross-sectional studies. Six articles demonstrated the coexistence of SDB and PAD, evidenced by high prevalence of SDB in patients with PAD and vice versa. Meanwhile, the included studies exhibited independent positive associations between SDB or sleep parameters and PAD after adjusting for multiple confounders. CONCLUSION From present clinical prospective, positive association between SDB and PAD was shown. More prospective, randomized controlled studies are needed to establish the cause-effect relationships involved.
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Affiliation(s)
- Yunyan Xia
- Department of Otorhinolaryngology-Head and Neck Surgery, 117970First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Kai You
- Department of Anesthesiology, 117970First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yuanping Xiong
- Department of Otorhinolaryngology-Head and Neck Surgery, 117970First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Hongqun Jiang
- Department of Otorhinolaryngology-Head and Neck Surgery, 117970First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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19
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Abstract
Synchronization of molecular, metabolic, and cardiovascular circadian oscillations is fundamental to human health. Sleep-disordered breathing, which disrupts such temporal congruence, elicits hemodynamic, autonomic, chemical, and inflammatory disturbances with acute and long-term consequences for heart, brain, and circulatory and metabolic function. Sleep apnea afflicts a substantial proportion of adult men and women but is more prevalent in those with established cardiovascular diseases and especially fluid-retaining states. Despite the experimental, epidemiological, observational, and interventional evidence assembled in support of these concepts, this substantial body of work has had relatively modest pragmatic impact, thus far, on the discipline of cardiology. Contemporary estimates of cardiovascular risk still are derived typically from data acquired during wakefulness. The impact of sleep-related breathing disorders rarely is entered into such calculations or integrated into diagnostic disease-specific algorithms or therapeutic recommendations. Reasons for this include absence of apnea-related symptoms in most with cardiovascular disease, impediments to efficient diagnosis at the population level, debate as to target, suboptimal therapies, difficulties mounting large randomized trials of sleep-specific interventions, and the challenging results of those few prospective cardiovascular outcome trials that have been completed and reported. The objectives of this review are to delineate the bidirectional interrelationship between sleep-disordered breathing and cardiovascular disease, consider the findings and implications of observational and randomized trials of treatment, frame the current state of clinical equipoise, identify principal current controversies and potential paths to their resolution, and anticipate future directions.
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Affiliation(s)
- John S Floras
- From the University Health Network and Sinai Health System Division of Cardiology, Department of Medicine, University of Toronto, Ontario, Canada.
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20
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Chaurasia SN, Kushwaha G, Kulkarni PP, Mallick RL, Latheef NA, Mishra JK, Dash D. Platelet HIF-2α promotes thrombogenicity through PAI-1 synthesis and extracellular vesicle release. Haematologica 2019; 104:2482-2492. [PMID: 31004026 PMCID: PMC6959171 DOI: 10.3324/haematol.2019.217463] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/17/2019] [Indexed: 01/03/2023] Open
Abstract
Oxygen-compromised environments, such as high altitude, are associated with platelet hyperactivity. Platelets confined within the relatively impervious core of an aggregate/thrombus have restricted access to oxygen, yet they continue to perform energy-intensive procoagulant activities that sustain the thrombus. Studying platelet signaling under hypoxia is, therefore, critical to our understanding of the mechanistic basis of thrombus stability. We report here that hypoxia-inducible factor (HIF)-2α is translated from pre-existing mRNA and stabilized against proteolytic degradation in enucleate platelets exposed to hypoxia. Hypoxic stress, too, stimulates platelets to synthesize plasminogen-activator inhibitor-1 (PAI-1) and shed extracellular vesicles, both of which potentially contribute to the prothrombotic phenotype associated with hypoxia. Stabilization of HIF-α by administering hypoxia-mimetics to mice accelerates thrombus formation in mesenteric arterioles. In agreement, platelets from patients with chronic obstructive pulmonary disease and high altitude residents exhibiting thrombogenic attributes have abundant expression of HIF-2α and PAI- 1. Thus, targeting platelet hypoxia signaling could be an effective anti-thrombotic strategy.
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Affiliation(s)
- Susheel N Chaurasia
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Geeta Kushwaha
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Paresh P Kulkarni
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ram L Mallick
- Department of Biochemistry, Birat Medical College & Teaching Hospital, Biratnagar, Nepal
| | - Nazmy A Latheef
- Department of Tuberculosis & Respiratory Diseases, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Jai K Mishra
- Department of Tuberculosis & Respiratory Diseases, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Debabrata Dash
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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21
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Abstract
Sleep disordered breathing (SDB), which causes sleep deprivation, intermittent hypoxia, and negative intrathoracic pressure swings, can be accompanied by other harmful pathophysiologies relating to cardiovascular diseases (CVD), including sudden death, atrial fibrillation, stroke, and coronary artery disease leading to heart failure. Continuous positive airway pressure (CPAP) therapy for SDB has been reported to provide favorable effects such as lowered systemic blood pressure and improved endothelial function. However, in recent randomized controlled trials, CPAP has failed to demonstrate its beneficial prognostic impact on the primary or secondary setting of CVD. In this review article, we describe the characteristics of SDB complicated with CVD, the prognostic impacts of SDB in CVD, and the beneficial effects of CPAP on CVD.
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Affiliation(s)
- Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University.,Department of Advanced Cardiac Therapeutics, Fukushima Medical University
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22
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García-Ortega A, Mañas E, López-Reyes R, Selma MJ, García-Sánchez A, Oscullo G, Jiménez D, Martínez-García M. Obstructive sleep apnoea and venous thromboembolism: pathophysiological links and clinical implications. Eur Respir J 2019; 53:13993003.00893-2018. [PMID: 30385528 DOI: 10.1183/13993003.00893-2018] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 10/12/2018] [Indexed: 12/13/2022]
Abstract
Obstructive sleep apnoea (OSA) and pulmonary embolism (PE) remain major health issues worldwide. Data from pathophysiological studies suggest that both intermittent hypoxia and sleep fragmentation are associated with increased blood coagulability, endothelial dysfunction and venous stasis. There is growing evidence that OSA is potentially prevalent in and a risk factor for PE. Conversely, patients with acute PE have two to four times greater risk of moderate-to-severe OSA. The role of continuous positive airway pressure (CPAP) treatment in improving clinically meaningful outcomes in PE patients remains unclear, although some authors have suggested that CPAP could improve the hypercoagulability state and normalise circadian alterations in some of the coagulation molecules, as observed in patients with OSA. Emerging research highlights the complex interdependent relationships between OSA and PE, emphasising the need for rigorous, well-powered trials that address the impact of OSA and its treatment on the prevention and management of PE. Undoubtedly, these will require closer collaboration between the sleep medicine and clinical/venous thromboembolism communities.
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23
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Jiang XM, Qian XS, Gao XF, Ge Z, Tian NL, Kan J, Zhang JJ. Obstructive Sleep Apnea Affecting Platelet Reactivity in Patients Undergoing Percutaneous Coronary Intervention. Chin Med J (Engl) 2018; 131:1023-1029. [PMID: 29692371 PMCID: PMC5937308 DOI: 10.4103/0366-6999.230732] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Background: The relationship between obstructive sleep apnea (OSA) and platelet reactivity in patients undergoing percutaneous coronary intervention (PCI) has not been defined. The present prospective, single-center study explored the relationship between platelet reactivity and OSA in patients with PCI. Methods: A total of 242 patients were finally included in the study. OSA was screened overnight by polysomnography. Platelet reactivity was assessed with a sequential platelet counting method, and the platelet maximum aggregation ratio (MAR) and average aggregation ratio were calculated. All patients were assigned per apnea-hypopnea index (AHI) to non-OSA (n = 128) and OSA (n = 114) groups. The receiver operating characteristic curve analysis was used to evaluate the accuracy of AHI for high platelet reactivity (HPR) on aspirin and clopidogrel, and multivariable logistic regression was used to determine the independent predictors of HPR on aspirin and clopidogrel. Results: Median AHI was significantly higher in the OSA group than in the non-OSA group (34.5 events/h vs. 8.1 events/h, Z = −13.422, P < 0.001). Likewise, median arachidonic acid- and adenosine diphosphate-induced maximum aggregation rate (MAR) in the OSA group was significantly higher than those in the non-OSA group (21.1% vs. 17.7%, Z = −3.525, P < 0.001 and 45.8% vs. 32.2%, Z = −5.708, P < 0.001, respectively). Multivariable logistic regression showed that OSA was the only independent predictor for HPR on aspirin (odds ratio [OR]: 1.055, 95% confidence interval [CI]: 1.033–1.077, P < 0.001) and clopidogrel (OR: 1.036, 95% CI: 1.017–1.056, P < 0.001). The cutoff value of AHI for HPR on aspirin was 45.2 events/h (sensitivity 47.1% and specificity 91.3%), whereas cutoff value of AHI for HPR on clopidogrel was 21.3 events/h (sensitivity 68.3% and specificity 67.7%). Conclusion: Platelet reactivity appeared to be higher in OSA patients with PCI despite having received a loading dose of aspirin and clopidogrel, and OSA might be an independent predictor of HPR on aspirin and clopidogrel.
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Affiliation(s)
- Xiao-Min Jiang
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Xue-Song Qian
- Department of Cardiology, Zhangjiagang First People's Hospital, Zhangjiagang, Jiangsu 215699, China
| | - Xiao-Fei Gao
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Zhen Ge
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Nai-Liang Tian
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jing Kan
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Jun-Jie Zhang
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
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Gabryelska A, Łukasik ZM, Makowska JS, Białasiewicz P. Obstructive Sleep Apnea: From Intermittent Hypoxia to Cardiovascular Complications via Blood Platelets. Front Neurol 2018; 9:635. [PMID: 30123179 PMCID: PMC6085466 DOI: 10.3389/fneur.2018.00635] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 07/16/2018] [Indexed: 12/31/2022] Open
Abstract
Obstructive sleep apnea is a chronic condition characterized by recurrent episodes of apneas or hypopneas during sleep leading to intermittent hypoxemia and arousals. The prevalence of the sleep disordered breathing is estimated that almost 50% of men and 24% of women suffer from moderate to severe form of the disorder. Snoring, collapse of upper airways and intermittent hypoxia are main causes of smoldering systemic inflammation in patients suffering from obstructive sleep apnea. The systematic inflammation is considered one of the key mechanisms leading to significant cardiovascular complications. Blood platelets, formerly not even recognized as cells, are currently gaining attention as crucial players in the immune continuum. Platelet surface is endowed with receptors characteristic for cells classically belonging to the immune system, which enables them to recognize pathogens, immune complexes, and interact in a homo- and heterotypic aggregates. Platelets participate in the process of transcellular production of bioactive lipids by delivering both specific enzymes and substrate molecules. Despite their lack of nucleus, platelets synthetize proteins in a stimuli-dependent manner. Atherosclerosis and consequent cardiovascular complications result from disruption in homeostasis of both of the platelet roles: blood coagulation and inflammatory processes modulation. Platelet parameters, routinely evaluated as a part of complete blood count test, were proposed as markers of cardiovascular comorbidity in patients with obstructive sleep apnea. Platelets were found to be excessively activated in this group of patients, especially in obese subjects. Persistent activation results in enhanced spontaneous aggregability and change in cytokine production. Platelet-lymphocyte ratio was suggested as an independent marker for cardiovascular disease in obstructive sleep apnea syndrome and continuous positive air pressure therapy was found to have an impact on platelet parameters and phenotype. In this literature review we summarize the current knowledge on the subject of platelets involvement in obstructive sleep apnea syndrome and consider the possible pathways in which they contribute to cardiovascular comorbidity.
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Affiliation(s)
- Agata Gabryelska
- Department of Sleep Medicine and Metabolic Disorders, Medical University of Lodz, Lodz, Poland
| | - Zuzanna M Łukasik
- Department of Rheumatology, Medical University of Lodz, Lodz, Poland
| | - Joanna S Makowska
- Department of Rheumatology, Medical University of Lodz, Lodz, Poland
| | - Piotr Białasiewicz
- Department of Sleep Medicine and Metabolic Disorders, Medical University of Lodz, Lodz, Poland
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The Relationship Between Cephalogram Analysis and Oxygen Desaturation Index During Sleep in Patients Submitted for Mandibular Setback Surgery. J Craniofac Surg 2018; 29:e375-e380. [DOI: 10.1097/scs.0000000000004386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Gender differences in morphological and functional outcomes after mandibular setback surgery. J Craniomaxillofac Surg 2018; 46:887-892. [PMID: 29709333 DOI: 10.1016/j.jcms.2018.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/19/2018] [Accepted: 04/04/2018] [Indexed: 11/23/2022] Open
Abstract
PURPOSE The aim of this study was to examine and compare morphological and functional outcomes after either isolated mandibular setback or bimaxillary surgery in males and females. MATERIALS AND METHODS A retrospective study was done on 52 patients, in whom surgical correction for mandibular prognathism was performed either by isolated mandibular setback (30 cases) or by bimaxillary surgery (22 cases). Morphological changes were studied using cephalograms and functional changes studied using impulse oscillometry (IOS) taken before surgery (T0), 3 months (T1) and 1 year after surgery (T2). Also 3% oxygen desaturation index (ODI) was measured at T0 and T2. RESULT Posterior airway space decreased significantly in both groups and both sexes but more so in males after mandibular setback surgery and in females after bimaxillary surgery. Changes in supine R20 (central airway resistance at 20 Hz) and supine R5 (total airway resistance at 5 Hz) in IOS statistically significantly increased in the period T0-T1 in males compared with females after mandibular setback surgery (p < 0.05). CONCLUSION Gender dimorphism is present according to morphological and functional outcomes, with males at a higher risk for obstructive sleep apnea (OSA) after mandibular setback surgery and females after bimaxillary surgery; however, compensatory changes act as a barrier against this.
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Comorbid obstructive sleep apnea and increased risk for sickle cell disease morbidity. Sleep Breath 2018; 22:797-804. [DOI: 10.1007/s11325-018-1630-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/09/2018] [Accepted: 01/11/2018] [Indexed: 01/19/2023]
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Brennan Y, Curnow J, Favaloro EJ. 2B or not 2B? A prothrombotic tendency masquerading as a bleeding disorder. Am J Hematol 2017; 92:584-590. [PMID: 28316091 DOI: 10.1002/ajh.24724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/12/2017] [Accepted: 03/15/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Yvonne Brennan
- Department of Haematology; Westmead Hospital; Sydney Australia
| | - Jennifer Curnow
- Department of Haematology; Westmead Hospital; Sydney Australia
- Sydney Medical School, The University of Sydney; Sydney Australia
- Sydney Centres for Thrombosis and Haemostasis; Sydney Australia
| | - Emmanuel J. Favaloro
- Sydney Centres for Thrombosis and Haemostasis; Sydney Australia
- Diagnostic Haemostasis Laboratory, Laboratory Haematology; NSW Health Pathology, Westmead Hospital; Sydney Australia
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Impaired plasma clot lysis and its determinants in patients with obstructive sleep apnea syndrome. Blood Coagul Fibrinolysis 2017; 27:892-898. [PMID: 27167858 DOI: 10.1097/mbc.0000000000000517] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Evidence indicates that hypercoagulability and impaired fibrinolysis have been observed in patients with obstructive sleep apnea syndrome (OSAS). It is unclear which factors determine prolonged fibrin clot lysis in OSAS. One hundred and sixty-five consecutive patients suspected of OSAS underwent overnight polysomnography. Prior to polysomnography, we determined plasma clot lysis time (CLT), plasminogen activator inhibitor (PAI)-1 antigen, activated thrombin-activatable fibrinolysis inhibitor (TAFIa), plasmin, and antiplasmin. OSAS was diagnosed in 110 (66.7%) patients, including 35 (31.8%) with severe OSAS, 26 (23.6%) with moderate OSAS, and 49 (44.6%) mild OSAS. Compared with 55 (33.3%) individuals in whom OSAS was not confirmed, OSAS patients had prolonged CLT (+12.8%), associated with higher PAI-1 antigen (+18.1%) (after adjustment for age, diabetes, and body mass index; both P < 0.01) and similar levels of TAFIa, plasmin, or antiplasmin. PAI-1, TAFIa, and CLT correlated positively with apnea/hypopnea index, which reflects the severity of OSAS (R = 0.66, P < 0.001; R = 0.29, P = 0.002; R = 0.55, P = 0.001, respectively), and with other polysomnography parameters, with the most potent correlations observed for desaturation index. Regression analysis adjusted for potential confounders showed that in OSAS, CLT was independently predicted by apnea/hypopnea index (B = 0.29, P = 0.002), PAI-1 (B = 0.42, P < 0.001), and TAFIa (B = 0.81, P = 0.044), whereas both PAI-1 and TAFIa were predicted only by desaturation index (B = 0.24, P = 0.002; and B = 0.14, P = 0.001, respectively). The severity of OSAS is closely associated with hypofibrinolysis measured in a global plasma-based assay, driven largely by PAI-1. Attenuated fibrinolysis might contribute to high risk of thromboembolic events in this disease.
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Hematological evaluation in males with obstructive sleep apnea before and after positive airway pressure. REVISTA PORTUGUESA DE PNEUMOLOGIA 2017; 23:71-78. [PMID: 28153627 DOI: 10.1016/j.rppnen.2016.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Revised: 12/01/2016] [Accepted: 12/27/2016] [Indexed: 01/10/2023] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is a systemic inflammatory disease associated with cardiovascular consequences. Red blood cell distribution width (RDW), mean platelet volume (MPV), and platelet distribution width (PDW) are recognized biomarkers of cardiovascular morbidity/mortality. Limited data is available on the association between these parameters and OSAS severity and the relationship with positive airway pressure therapy (PAP). In this prospective study of male OSAS patients we analyzed hematological data in order to evaluate their value in predicting OSAS severity, the relationship with sleep parameters, and their behavior under PAP. Seventy-three patients were included (mean age 46.5 years), of which 36 were mild (49.3%), 10 moderate (13.7%), and 27 severe (37%). The mean RDW increased significantly with OSAS severity and showed a positive correlation with respiratory disturbance index and hypoxemic burdens. Additionally, a group of 48 patients (mean age 47.2 years) were submitted to PAP. After six months, red blood cell count, hemoglobin, hematocrit, and platelet count showed a significant decrease (p<0.0001; p<0.0001; p=0.001; p<0.0001; respectively). Concerning OSAS severity, these parameters also significantly decreased in mild patients (p=0.003; p=0.043; p=0.020; p=0.014; respectively) but only hemoglobin, hematocrit, and platelet count decreased in severe cases (p<0.0001; p=0.008; p=0.018; respectively). This study demonstrated an association between RDW values and OSAS severity. Moreover, red cell and platelet parameters changed significantly after PAP, supporting its cardiovascular protective effect. RDW may become a simple/inexpensive blood biomarker, making it useful in prioritizing OSAS patients waiting for polysomnography, and red cell and platelet parameters could be useful in PAP follow up.
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Mean Platelet Volume Decreases in Adult Patients With Obstructive Sleep Apnea After Uvulopalatal Flap Surgery. J Craniofac Surg 2016; 26:2152-4. [PMID: 26468800 DOI: 10.1097/scs.0000000000001954] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
AIM The main purpose of the study was to investigate changes in mean platelet volume (MPV) values in patients with obstructive sleep apnea syndrome (OSAS) who had undergone uvulopalatal flap (UPF) surgery. METHOD The study included a review of the medical records of 37 adult patients who had undergone UPF surgery after being diagnosed with OSAS. The baseline blood parameters of patients, including the MPV and platelet distribution width (PDW) values, were measured and repeated 3 months after treatment. Polysomnographic evaluations of the patients were also performed during admission and the 3rd month control. Comparisons of MPV values and their correlation with polysomnographic parameters were the main outcomes measured. RESULTS The blood parameters of all patients were similar except for MPV values, which were significantly lower after treatment (P < 0.001). Patients' apnea hypopnea index (AHI) and apnea episodes were significantly reduced after the UPF surgery, whereas their oxygen saturation significantly increased (P < 0.001). The MPV values were not correlated with polysomnographic parameters (P > 0.05). CONCLUSION The UPF surgery, which is a relatively simple surgical intervention to treat OSAS, alleviates nocturnal hypoxic episodes and lowers platelet volume. These may both be important predictors of adverse cardiovascular outcomes related to OSAS.
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Kheirandish-Gozal L, Philby MF, Alonso-Álvarez ML, Terán-Santos J, Gozal D. Biomarkers of Alzheimer Disease in Children with Obstructive Sleep Apnea: Effect of Adenotonsillectomy. Sleep 2016; 39:1225-32. [PMID: 27070140 DOI: 10.5665/sleep.5838] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/02/2016] [Indexed: 11/03/2022] Open
Abstract
STUDY OBJECTIVE Obese children are at increased risk for developing obstructive sleep apnea (OSA), and both of these conditions are associated with an increased risk for end-organ morbidities. Both OSA and obesity (OB) have been associated with increased risk for Alzheimer disease (AD). This study aimed to assess whether OSA and OB lead to increased plasma levels of 2 AD markers amyloid β protein 42 (Aβ42) and pre-senilin 1 (PS1). METHODS Fasting morning plasma samples from otherwise healthy children with a diagnosis of OB, OSA, or both (OSA+OB), and controls, and in a subset of children with OSA after adenotonsillectomy (T&A) were assayed for Aβ42 and PS1 levels using commercial enzyme-linked immunosorbent assay kits. RESULTS 286 children (mean age of 7.2 ± 2.7 y) were evaluated. Compared to control subjects, OB children had similar Aβ42 (108.3 ± 31.7 pg/mL versus 83.6 ± 14.6 pg/mL) and PS1 levels (0.89 ± 0.44 ng/mL versus 0.80 ± 0.29 pg/mL). However, OSA children (Aβ42: 186.2 ± 66.7 pg/mL; P < 0.001; PS1: 3.42 ± 1.46 ng/mL; P < 0.001), and particularly OSA+OB children had significant elevations in both Aβ42 (349.4 ± 112.9 pg/mL; P < 0.001) and PS1 (PS1: 4.54 ± 1.16 ng/mL; P < 0.001) circulating concentrations. In a subset of 24 children, T&A resulted in significant reductions of Aβ42 (352.0 ± 145.2 versus 151.9 ± 81.4 pg/mL; P < 0.0001) and PS1 (4.82 ± 1.09 versus 2.02 ± 1.18 ng/mL; P < 0.0001). CONCLUSIONS Thus, OSA, and particularly OSA+OB, are associated with increased plasma levels of AD biomarkers, which decline upon treatment of OSA in a representative, yet not all- encompassing subset of patients, suggesting that OSA may accelerate AD-related processes even in early childhood. However, the cognitive and overall health-related implications of these findings remain to be defined.
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Affiliation(s)
- Leila Kheirandish-Gozal
- Section of Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL
| | - Mona F Philby
- Section of Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL
| | - María Luz Alonso-Álvarez
- Sleep Unit, CIBER of Respiratory Diseases, Instituto Carlos III, CIBERES, Hospital Universitario de Burgos (HUBU), Burgos, Spain
| | - Joaquin Terán-Santos
- Sleep Unit, CIBER of Respiratory Diseases, Instituto Carlos III, CIBERES, Hospital Universitario de Burgos (HUBU), Burgos, Spain
| | - David Gozal
- Section of Sleep Medicine, Department of Pediatrics, Pritzker School of Medicine, Biological Sciences Division, The University of Chicago, Chicago, IL
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Roles and Mechanisms of Obstructive Sleep Apnea-Hypopnea Syndrome and Chronic Intermittent Hypoxia in Atherosclerosis: Evidence and Prospective. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:8215082. [PMID: 27293515 PMCID: PMC4884866 DOI: 10.1155/2016/8215082] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/01/2016] [Accepted: 04/20/2016] [Indexed: 12/13/2022]
Abstract
The morbidity and mortality of obstructive sleep apnea-hypopnea syndrome (OSAHS) are regarded as consequences of its adverse effects on the cardiovascular system. Chronic intermittent hypoxia (CIH) induced by OSAHS can result in vascular endothelial injury, thus promoting development of atherosclerosis (AS). Studies have shown that CIH is an independent risk factor for the occurrence and development of AS, but the underlying mechanism remains unclear. Here, we review clinical and fundamental studies reported during the last 10 years on the occurrence and development of AS mediated by CIH, focusing on inflammation, oxidative stress, insulin resistance, cell apoptosis, vascular endothelial injury, platelet activation, and neuroendocrine disorders. This review will offer current evidence and perspective to researchers for the development of effective intervention strategies for OSAHS-related cardiocerebrovascular diseases.
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Haemmerle M, Bottsford-Miller J, Pradeep S, Taylor ML, Choi HJ, Hansen JM, Dalton HJ, Stone RL, Cho MS, Nick AM, Nagaraja AS, Gutschner T, Gharpure KM, Mangala LS, Rupaimoole R, Han HD, Zand B, Armaiz-Pena GN, Wu SY, Pecot CV, Burns AR, Lopez-Berestein G, Afshar-Kharghan V, Sood AK. FAK regulates platelet extravasation and tumor growth after antiangiogenic therapy withdrawal. J Clin Invest 2016; 126:1885-96. [PMID: 27064283 DOI: 10.1172/jci85086] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 02/24/2016] [Indexed: 12/17/2022] Open
Abstract
Recent studies in patients with ovarian cancer suggest that tumor growth may be accelerated following cessation of antiangiogenesis therapy; however, the underlying mechanisms are not well understood. In this study, we aimed to compare the effects of therapy withdrawal to those of continuous treatment with various antiangiogenic agents. Cessation of therapy with pazopanib, bevacizumab, and the human and murine anti-VEGF antibody B20 was associated with substantial tumor growth in mouse models of ovarian cancer. Increased tumor growth was accompanied by tumor hypoxia, increased tumor angiogenesis, and vascular leakage. Moreover, we found hypoxia-induced ADP production and platelet infiltration into tumors after withdrawal of antiangiogenic therapy, and lowering platelet counts markedly inhibited tumor rebound after withdrawal of antiangiogenic therapy. Focal adhesion kinase (FAK) in platelets regulated their migration into the tumor microenvironment, and FAK-deficient platelets completely prevented the rebound tumor growth. Additionally, combined therapy with a FAK inhibitor and the antiangiogenic agents pazopanib and bevacizumab reduced tumor growth and inhibited negative effects following withdrawal of antiangiogenic therapy. In summary, these results suggest that FAK may be a unique target in situations in which antiangiogenic agents are withdrawn, and dual targeting of FAK and VEGF could have therapeutic implications for ovarian cancer management.
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Blood parameters as indicators of upper airway obstruction in children with adenoid or adenotonsillar hypertrophy. J Craniofac Surg 2016; 26:e213-6. [PMID: 25933146 DOI: 10.1097/scs.0000000000001437] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
UNLABELLED Adenotonsillar hypertrophy (ATH) is the most common cause of obstructive sleep apnea in children. This study aimed to evaluate the blood parameters of children with ATH who underwent surgery. METHODS The study included a review of the medical records of 130 children who underwent adenoidectomy or adenotonsillectomy with a diagnosis of adenoid hypertrophy and/or chronic tonsillitis. Patients were classified into 3 groups: group 1 (n=69) underwent adenoidectomy, group 2 (n=61) underwent adenotonsillectomy, and group 3 consisted of 82 healthy children. White blood cell count, platelet count, hemoglobin levels, mean platelet volume, and platelet distribution width values were the primary outcome measures. RESULTS Mean platelet volume, platelet distribution width and hemoglobin values decreased in the groups that underwent surgery. Whereas the decrease in group 1 was insignificant, it was significant in group 2. White blood cell count values increased in both group 1 (adenoidectomy) and group 2 (adenotonsillectomy), but the increase in group 2 was significant. No significant difference in platelet count was detected before versus after the operation. CONCLUSIONS Upper airway obstruction caused by ATH remarkably changes the blood parameters related to chronic hypoxia. Significant improvement can be achieved after adenotonsillectomy rather than adenoidectomy alone.
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Alkhiary W, Morsy NE, Yousef AM, El-Saddik AM, Arram EO. Adenosine Diphosphate-Induced Platelets Aggregability in Polysomnographically Verified Obstructive Sleep Apnea. Clin Appl Thromb Hemost 2015; 23:360-366. [PMID: 26276686 DOI: 10.1177/1076029615600790] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is a risk factor for arterial thrombosis and cardiovascular morbidity. Activated platelets play key roles in the development of atherothrombosis, thus may be involved in these complications of OSAS. Herein, we evaluated the relationship between severity of OSAS and the degree of platelet aggregates as a marker of activated platelets in 64 patients with OSAS. Platelet aggregations were determined by means of optical aggregometry, using adenosine diphosphate (ADP) as an agonist. Compared with the control group, ADP-induced platelet aggregability was increased in patients with total OSAS, severe OSAS, and in mild to moderate OSAS. Moreover, ADP-induced platelet aggregation was correlated with the Epworth sleepiness scale (ESS) in patients with severe OSAS. Obstructive sleep apnea syndrome is associated with enhanced platelets aggregations, which may predispose the cardiovascular sequels. The ESS may be important in predicting platelet activation and thus atherothrombotic complications in those with OSAS.
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Affiliation(s)
- Wael Alkhiary
- 1 Department of Clinical Pathology, Mansoura Faculty of Medicine, Mansoura University, Egypt
| | - Nesreen E Morsy
- 2 Department of Chest Medicine, Mansoura Faculty of Medicine, Mansoura University, Egypt
| | - Aida M Yousef
- 2 Department of Chest Medicine, Mansoura Faculty of Medicine, Mansoura University, Egypt
| | - Amr Mohamed El-Saddik
- 1 Department of Clinical Pathology, Mansoura Faculty of Medicine, Mansoura University, Egypt
| | - Eman O Arram
- 2 Department of Chest Medicine, Mansoura Faculty of Medicine, Mansoura University, Egypt
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Toraldo DM, De Benedetto M, Scoditti E, De Nuccio F. Obstructive sleep apnea syndrome: coagulation anomalies and treatment with continuous positive airway pressure. Sleep Breath 2015; 20:457-65. [PMID: 26169715 DOI: 10.1007/s11325-015-1227-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/22/2015] [Accepted: 06/29/2015] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Obstructive sleep apnea syndrome (OSAS) is a highly prevalent sleep disorder associated with severe cardiovascular events, morbidity and mortality. Recent evidence has highlighted OSAS as an independent risk factor for an excessive platelet activation and arterial thrombosis, but the underlying mechanisms have not yet been determined. Studies in cell culture and animal models have significantly increased our understanding of the mechanisms of inflammation in OSAS. Hypoxia is a critical pathophysiological element that leads to an intense sympathetic activity, in association with systemic inflammation, oxidative stress and procoagulant activity. While platelet dysfunction and/or hypercoagulability play an important role in the pathogenesis of vascular disease, there are limited studies on the potential role of blood viscosity in the development of vascular disease in OSAS. CONCLUSION Further studies are required to determine the precise role of hypercoagulability in the cardiovascular pathogenesis of OSAS, particularly its interaction with oxidative stress, thrombotic tendency and endothelial dysfunction. Nasal continuous positive airway pressure (nCPAP), the gold standard treatment for OSAS, not only significantly reduced apnea-hypopnoea indices but also markers of hypercoagulability, thus representing a potential mechanisms by which CPAP reduces the rate of cardiovascular morbidity and mortality in OSAS patients.
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Affiliation(s)
| | | | - Egeria Scoditti
- National Research Council (CNR), Institute of Clinical Physiology, Lecce, Italy
| | - Francesco De Nuccio
- Laboratory of Human Anatomy and Neuroscience, Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Prov. le Lecce-Monteroni (Centro Ecotekne), 73100, Lecce, Italy.
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Hoareau G, Mellema M. Pro-coagulant thromboelastographic features in the bulldog. J Small Anim Pract 2014; 56:103-7. [DOI: 10.1111/jsap.12299] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 05/09/2014] [Accepted: 09/25/2014] [Indexed: 11/27/2022]
Affiliation(s)
- G. Hoareau
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California Davis; Davis CA 95616-8747 USA
| | - M. Mellema
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine; University of California Davis; Davis CA 95616-8747 USA
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Is mean platelet volume really a severity marker for obstructive sleep apnea syndrome without comorbidities? Pulm Med 2014; 2014:754839. [PMID: 25309752 PMCID: PMC4182073 DOI: 10.1155/2014/754839] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 08/20/2014] [Accepted: 08/22/2014] [Indexed: 11/18/2022] Open
Abstract
Obstructive sleep apnea syndrome (OSAS) is a common disorder that can lead to significant cardiovascular complications. Several studies have reported increased platelet activation and aggregation in patients with OSAS. In this study we aimed to show a correlation between mean platelet volume (MPV) and severity of OSAS in patients with OSAS without any overt cardiac disease or diabetes. The polysomnography recordings of 556 consecutive patients admitted to the sleep laboratory between January 2012 and July 2012 were retrospectively evaluated. The relationship between polysomnographic parameters and biochemical parameters was assessed. Polysomnographic results of 200 patients (154 males [77%]; mean age, 44.5 ± 11.4 years) were included. No correlation was observed between MPV and the average oxygen saturation index, the minimum desaturation index, or the oxygen desaturation index in the study population as well as in severe OSAS group (AHI > 30). The only correlation was found between MPV and AHI in the severe OSAS group (P = 0.010). MPV was not correlated with OSAS severity in patients without any overt cardiac disease or diabetes. These findings raise doubts about the suggestion that MPV might be a marker for OSAS severity, as recommended in earlier studies. Thus, further prospective data are needed.
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Mean platelet volume in patients with obstructive sleep apnea and its relationship with simpler heart rate derivatives. Cardiol Res Pract 2014; 2014:454701. [PMID: 25295213 PMCID: PMC4176644 DOI: 10.1155/2014/454701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 08/26/2014] [Accepted: 08/29/2014] [Indexed: 01/25/2023] Open
Abstract
Some studies show increased mean platelet volume (MPV) in obstructive sleep apnea (OSA). The aim of this study was to evaluate MPV in OSA patients without cardiovascular risk factors and the possible association of heart rate derivatives with MPV. A total of 82 patients (aged 30–70 years) were divided into 2 groups according to the presence of either OSA or non-OSA as the control group. The OSA group consisted of 52 patients and the control group consisted of 30 subjects. Neither group was significantly different in terms of MPV values as well as heart rate (HR) derivatives such as minimum HR, maximum HR, the difference between maximum HR and minimum HR, mean HR, and heart rate performance index (HRPI) [(HR max. − HR min.)/HR mean] (P > 0.05 for all variables). In multivariate analysis, platelet count and percentages of recording time spent at arterial oxygen saturation < 90% significant variables are associated with MPV (β ± SE: −0.004 ± 0.002, 95% CI, −0.008 to −0.001; P = 0.034) and (β ± SE: 2.93 ± 1.93, 95% CI, 0.167 to 5.69; P = 0.038). Consequently, our findings predominantly suggest that there is a casual and reciprocal interaction between MPV and autonomic activation.
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Chin K. [111th Scientific Meeting of the Japanese Society of Internal Medicine: Symposium: 2. Perspective of treatment in the vascular lesion of various organs; 6) Associations between sleep disordered breathing and vascular lesions and the treatment for them]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 2014; 103:2163-9. [PMID: 27522769 DOI: 10.2169/naika.103.2163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Sökücü SN, Ozdemir C, Dalar L, Karasulu L, Aydın S, Altın S. Complete blood count alterations after six months of continuous positive airway pressure treatment in patients with severe obstructive sleep apnea. J Clin Sleep Med 2014; 10:873-8. [PMID: 25126033 DOI: 10.5664/jcsm.3958] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
STUDY OBJECTIVES The cardiovascular complications caused by obstructive sleep apnea (OSA) decrease after continuous positive airway pressure treatment (CPAP). Mean platelet volume (MPV), platelet distribution width (PDW), and red cell distribution width (RDW) are newly recognized tools for assessing cardiovascular risk. METHODS From a selection of patients with symptoms of nocturnal snoring and/or excessive daytime sleepiness, 36 males with an apnea-hypopnea index (AHI) > 30/h and 22 age-matched normal male controls with AHI < 5/h were included. Patients with OSA underwent another night of CPAP titration, and 11 patients were excluded at the 6-month evaluation due to poor compliance with the home CPAP therapy. Complete blood count parameters of compliant patients and the control group were evaluated. RESULTS Compared to controls, MPV values were significantly higher (p = 0.025) in OSA patients, but no significant differences in PDW or RDW were found (p > 0.05). Six months of CPAP therapy resulted in significantly lower MPV values but increased values of PDW and RDW in patients with severe OSA (p = 0.001, p = 0.007, p = 0.001, respectively). CONCLUSION Our data suggest that complete blood count parameters in OSA patients such as MPV, PDW and RDW change significantly after CPAP therapy.
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Affiliation(s)
- Sinem Nedime Sökücü
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Sleep Laboratory, Istanbul, Turkey
| | - Cengiz Ozdemir
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Sleep Laboratory, Istanbul, Turkey
| | - Levent Dalar
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Sleep Laboratory, Istanbul, Turkey
| | - Levent Karasulu
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Sleep Laboratory, Istanbul, Turkey
| | - Senay Aydın
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Sleep Laboratory, Istanbul, Turkey
| | - Sedat Altın
- Yedikule Chest Disease and Thoracic Surgery Training and Research Hospital, Department of Chest Disease, Istanbul, Turkey
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Association between obstructive sleep apnea and deep vein thrombosis / pulmonary embolism: a population-based retrospective cohort study. Thromb Res 2014; 134:340-5. [PMID: 24972845 DOI: 10.1016/j.thromres.2014.06.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/01/2014] [Accepted: 06/05/2014] [Indexed: 01/18/2023]
Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a major contributor to cardiovascular disease, and may cause severe morbidity and mortality. Recent studies have indicated that OSA patients exhibited elevated platelet activity, fibrinogen levels, and platelet aggregation. OBJECTIVES We investigated the risk of deep vein thrombosis (DVT) and pulmonary embolism (PE) in patients diagnosed with OSA compared with age- and sex-matched unaffected people. PATIENTS/METHODS This longitudinal, nationwide, population-based cohort study was conducted using data from Taiwan National Health Insurance Research Database (NHIRD) recorded between January 2000 and December 2011. The study consisted of 3511 patients with OSA and 35110 matched comparison individuals. A Cox proportional hazard regression was used to compute the risk of DVT and PE in patients with OSA compared with those without OSA. RESULTS The DVT and PE risks were 3.50- and 3.97-fold higher (95% CI=1.83-6.69 and 1.85-8.51) respectively, in the OSA cohort than in the reference cohort after we adjusted for age, sex, and comorbidities. CONCLUSION This nationwide population-based cohort study indicates that patients with OSA exhibit a higher risk of subsequent DVT and PE.
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Li Z, Du L, Li Y, Huang L, Lei F, Yang L, Li T, Tang X. Characterization of primary symptoms leading to Chinese patients presenting at hospital with suspected obstructive sleep apnea. J Thorac Dis 2014; 6:444-51. [PMID: 24822101 DOI: 10.3978/j.issn.2072-1439.2014.02.08] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 02/18/2014] [Indexed: 02/05/2023]
Abstract
OBJECTIVES We identified the primary symptoms leading to Chinese patients presenting at hospital with suspected obstructive sleep apnea (OSA) and studied the prevalence and characteristics of OSA in confirmed cases. METHODS We collected data on 350 consecutive patients (302 males and 43±11 years old) with suspected OSA who underwent overnight polysomnography (PSG). RESULTS Among all patients, rankings of primary symptoms that led to the patients presenting at hospital for PSG were observed apnea (33%), snoring alone (29%), choking/gasping (13%), daytime sleepiness (5%) and other (20%). For severe OSA, prevalence rate was 61%, apnea hypopnea index (AHI) was 64±18, age was 44±10 years old, body mass index (BMI) was 28±3.5 kg/m(2), and hypertension rate was 28%. CONCLUSIONS Self-awareness of symptoms led a majority of the patients to present at hospital in China. Compared to currently available case series studies, our results suggest that OSA patients in East Asian countries are characterized by higher prevalence and more severe apnea, younger age, poorer sleep quality, but less obesity and less comorbidity with hypertension, relative to countries in North America, South America and Europe.
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Affiliation(s)
- Zhe Li
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Lina Du
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yun Li
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Lili Huang
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Fei Lei
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Linghui Yang
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Tao Li
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Xiangdong Tang
- 1 Sleep Medicine Center, Mental Health Center, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China ; 2 Pharmaceutical College, Heilongjiang University of Chinese Medicine, Harbin 150040, China
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Altered expression of platelet proteins and calpain activity mediate hypoxia-induced prothrombotic phenotype. Blood 2013; 123:1250-60. [PMID: 24297866 DOI: 10.1182/blood-2013-05-501924] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Oxygen-compromised environments, such as high altitude, air travel, and sports, and pathological conditions, such as solid tumors, have been suggested to be prothrombotic. Despite the indispensable role of platelets in thrombus formation, the studies linking hypoxia, platelet reactivity, and thrombus formation are limited. In the present study, platelet proteome/reactivity was analyzed to elucidate the acute hypoxia-induced prothrombotic phenotype. Rats exposed to acute simulated hypoxia (282 torr/8% oxygen) demonstrated a decreased bleeding propensity and increased platelet reactivity. Proteomic analysis of hypoxic platelets revealed 27 differentially expressed proteins, including those involved in coagulation. Among these proteins, calpain small subunit 1, a 28-kDa regulatory component for calpain function, was significantly upregulated under hypoxic conditions. Moreover, intraplatelet Ca(2+) level and platelet calpain activity were also found to be in accordance with calpain small subunit 1 expression. The inhibition of calpain activity demonstrated reversal of hypoxia-induced platelet hyperreactivity. The prothrombotic role for calpain was further confirmed by an in vivo model of hypoxia-induced thrombosis. Interestingly, patients who developed thrombosis while at extreme altitude had elevated plasma calpain activities and increased soluble P-selectin level. In summary, this study suggests that augmented calpain activity is associated with increased incidence of thrombosis under hypoxic environments.
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Quintessential Risk Factors: Their Role in Promoting Cognitive Dysfunction and Alzheimer’s Disease. Neurochem Res 2012; 37:2627-58. [DOI: 10.1007/s11064-012-0854-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Accepted: 07/21/2012] [Indexed: 12/13/2022]
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Abstract
Obstructive sleep apnea (OSA) is a common disorder that has been associated with many cardiovascular disease processes, including hypertension and arrhythmias. OSA has also been identified as an independent risk factor for stroke and all-cause mortality. OSA is highly prevalent in patients with transient ischemic attacks and stroke. Routinely screening patients with transient ischemic attacks or stroke for sleep apnea is becoming more common. In stroke patients with OSA, treatment with continuous positive airway pressure may prevent subsequent cardiovascular events and improve neurologic outcomes. This review explores the pathophysiology of the association between OSA and stroke, and the clinical implications of identification and treatment of OSA in patients with stroke.
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Affiliation(s)
- Aneesa M Das
- Division of Pulmonary, Critical Care, Allergy and Sleep Medicine, The Ohio State University, 201 Davis Heart and Lung Research Institute, 473 West 12th Avenue, Columbus, OH 43209, USA
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Abstract
BACKGROUND Obstructive sleep apnea (OSA) is a common disorder that affects both quality of life and cardiovascular health. The causal link between OSA and cardiovascular morbidity⁄mortality remains elusive. One possible explanation is that repeated episodes of nocturnal hypoxia lead to a hypercoagulable state that predisposes patients to thrombotic events. There is evidence supporting a wide array of hematological changes that affect hemostasis (eg, increased hematocrit, blood viscosity, platelet activation, clotting factors and decreased fibrinolytic activity). OBJECTIVE To provide a comprehensive review of the current evidence associating OSA with increased coagulability, and to highlight areas for future research. METHODS Keyword searches in Ovid Medline were used to identify relevant articles; all references in the articles were searched for relevant titles. The Web of Science was used to identify articles citing the relevant articles found using the Ovid Medline search. All original peer-reviewed articles, meta-analyses and systematic reviews regarding the pertinent topics between 1990 and present were selected for review. RESULTS Hematocrit, blood viscosity, certain clotting factors, tissue factor, platelet activity and whole blood coagulability are increased in patients with OSA, while fibrinolysis is impaired. CONCLUSION There is considerable evidence that OSA is associated with a procoagulant state. Several factors are involved in the procoagulant state associated with OSA. There is a need for adequately powered clinical studies involving well-matched control groups to address potential confounding variables, and to accurately delineate the individual factors involved in the procoagulant state associated with OSA and their response to treatment.
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