1
|
Arora A, Zareba W, Woosley RL, Klimentidis YC, Patel IY, Quan SF, Wendel C, Shamoun F, Guerra S, Parthasarathy S, Patel SI. Genetic QT Score and Sleep Apnea as Predictors of Sudden Cardiac Death in the UK Biobank. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.11.07.23298237. [PMID: 37986981 PMCID: PMC10659512 DOI: 10.1101/2023.11.07.23298237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Introduction The goal of this study was to evaluate the association between a polygenic risk score (PRS) for QT prolongation (QTc-PRS), QTc intervals and mortality in patients enrolled in the UK Biobank with and without sleep apnea. Methods The QTc-PRS was calculated using allele copy number and previously reported effect estimates for each single nuclear polymorphism SNP. Competing-risk regression models adjusting for age, sex, BMI, QT prolonging medication, race, and comorbid cardiovascular conditions were used for sudden cardiac death (SCD) analyses. Results 500,584 participants were evaluated (56.5 ±8 years, 54% women, 1.4% diagnosed with sleep apnea). A higher QTc-PRS was independently associated with the increased QTc interval duration (p<0.0001). The mean QTc for the top QTc-PRS quintile was 15 msec longer than the bottom quintile (p<0.001). Sleep apnea was found to be an effect modifier in the relationship between QTc-PRS and SCD. The adjusted HR per 5-unit change in QTc-PRS for SCD was 1.64 (95% CI 1.16 - 2.31, p=0.005) among those with sleep apnea and 1.04 (95% CI 0.95 - 1.14, p=0.44) among those without sleep apnea (p for interaction =0.01). Black participants with sleep apnea had significantly elevated adjusted risk of SCD compared to White participants (HR=9.6, 95% CI 1.24 - 74, p=0.03). Conclusion In the UK Biobank population, the QTc-PRS was associated with SCD among participants with sleep apnea but not among those without sleep apnea, indicating that sleep apnea is a significant modifier of the genetic risk. Black participants with sleep apnea had a particularly high risk of SCD.
Collapse
|
2
|
Patel SI, Zareba W, Wendel C, Perez K, Patel I, Quan SF, Youngstedt SD, Parthasarathy S, Woosley RL. A QTc risk score in patients with obstructive sleep apnea. Sleep Med 2023; 103:159-164. [PMID: 36805915 DOI: 10.1016/j.sleep.2023.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
INTRODUCTION Patients with obstructive sleep apnea (OSA) are at risk for QTc prolongation, a known risk factor for increased mortality. The pro-QTc score can help identify individuals at increased risk for mortality associated with increased QTc however, it has not been evaluated in patients with OSA. The goal of this study was to evaluate the pro-QTc score in patients with OSA. METHODS Medical records of patients undergoing a sleep study at our sleep center from February 2012 to August 2020 were analyzed. Presence or absence of OSA was determined by polysomnography. The pro-QTc score was calculated with 1 point assigned for each of the following: female sex, QT-prolonging diagnoses and conditions, QT-prolonging electrolyte abnormalities, and medications with known risk for QT-prolongation. Mortality was determined from the electronic medical record of an integrated healthcare system. RESULTS There were 2246 patients (age 58 ± 15 years, 54% male, 82 dead) with OSA and 421 patients (age 54 ± 18 years, 43% male, 18 dead) without OSA. Of those with OSA, 1628 (72.5%) had at least one risk factor for QTc prolongation. A higher pro-QTc score was associated with greater mortality in patients with OSA (HR 1.48 per pro-QTc score, p < 0.001, 95% CI 1.3-1.7) but not in patients without OSA (HR 1.25 per pro-QTc score, p = 0.30, 95% CI 0.82-1.9), after adjusting for age, body mass index (BMI), and smoking status. CONCLUSION In patients with OSA, a higher pro-QTc score was associated with greater mortality.
Collapse
Affiliation(s)
- Salma I Patel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA.
| | - Wojciech Zareba
- Division of Cardiology and Heart Research, University of Rochester Medical Center, USA
| | - Christopher Wendel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA
| | - Karolina Perez
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA
| | - Imran Patel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA
| | - Stuart F Quan
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA; Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, USA
| | - Shawn D Youngstedt
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Edson College of Nursing and Health Innovation, Arizona State University, USA
| | - Sairam Parthasarathy
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA
| | - Raymond L Woosley
- Department of Medicine, Division of Clinical Data Analytics and Decision Support, University of Arizona College of Medicine, Phoenix, USA
| |
Collapse
|
3
|
Paschou SA, Bletsa E, Saltiki K, Kazakou P, Kantreva K, Katsaounou P, Rovina N, Trakada G, Bakakos P, Vlachopoulos CV, Psaltopoulou T. Sleep Apnea and Cardiovascular Risk in Patients with Prediabetes and Type 2 Diabetes. Nutrients 2022; 14:nu14234989. [PMID: 36501019 PMCID: PMC9741445 DOI: 10.3390/nu14234989] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Obstructive sleep apnea (OSA) is a common but largely undiagnosed clinical condition, which is turning into a serious public health issue. Of note is that its prevalence is gradually increasing in parallel with the obesity and type 2 diabetes mellitus (T2DM) epidemics. The aim of this article is to comprehensively review the literature in order to evaluate the cardiovascular (CV) risk among patients with OSA and prediabetes or T2DM. OSA seems to be an independent risk factor for the development as well as the progression of T2DM, whereas it is associated with T2DM-related macrovascular and microvascular complications. OSA may also act as a potential risk factor for the presentation and development of CV disease, such as hypertension, coronary artery disease, heart failure, pulmonary hypertension, atrial fibrillation and other cardiac arrythmias, as well as stroke. OSA and T2DM also share common pathophysiological mechanisms leading to atherosclerosis. Considering that the coexistence of OSA and T2DM is an independent and cumulative risk factor for CV mortality, more so than the two diseases separately, clinicians and healthcare professionals should be aware of and screen for OSA in patients with T2DM. Notably, targeted therapy for both conditions seems to substantially improve CV prognosis.
Collapse
Affiliation(s)
- Stavroula A. Paschou
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
- Correspondence:
| | - Evanthia Bletsa
- 3rd Department of Cardiology, Sotiria Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Katerina Saltiki
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Paraskevi Kazakou
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Kanella Kantreva
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Paraskevi Katsaounou
- 1st Department of Critical Care Medicine, Evangelismos Hospital, School of Medicine, National and Kapodistrian University of Athens, 10676 Athens, Greece
| | - Nikoletta Rovina
- 1st Department of Respiratory Medicine, Sotiria Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Georgia Trakada
- Respiratory Medicine Unit, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| | - Petros Bakakos
- 1st Department of Respiratory Medicine, Sotiria Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Charalambos V. Vlachopoulos
- 1st Department of Cardiology, Hippokration Hospital, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Theodora Psaltopoulou
- Endocrine Unit and Diabetes Center, Department of Clinical Therapeutics, Alexandra Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece
| |
Collapse
|
4
|
Patel SI, Zareba W, LaFleur B, Couderc JP, Xia X, Woosley R, Patel IY, Combs D, Mashaqi S, Quan SF, Parthasarathy S. Markers of ventricular repolarization and overall mortality in sleep disordered breathing. Sleep Med 2022; 95:9-15. [PMID: 35533628 PMCID: PMC10563794 DOI: 10.1016/j.sleep.2022.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/04/2022] [Accepted: 04/18/2022] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Variability and prolongation of ventricular repolarization - measured by changes in QT interval and QT variability are independently associated with ventricular arrhythmias, sudden death, and mortality but such studies did not examine the role of sleep-disordered breathing. We aimed to determine whether sleep-disordered breathing moderated the association between measures of ventricular repolarization and overall mortality. METHODS Eight hundred participants were randomly selected from each of the following four groups in the Sleep Heart Health Study: mild, moderate, severe or no sleep disordered breathing (n = 200 each). Overnight electrocardiograms were analyzed for QTc duration and QT variability (standard deviation of QT intervals, normalized QT interval variance and the short-term interval beat-to-beat QT variability). Cox proportional hazards penalized regression modeling was used to identify predictors of mortality. RESULTS Eight hundred of 5600 participants were randomly selected. The participants (68 ± 10 years; 56.8% male) were followed for an average of 8.2 years during which time 222 (28.4%) died. QTc, SDQT, and QTVN were associated with the presence of SDB (p = 0.002, p = 0.014, and p = 0.024, respectively). After adjusting for covariates, the presence of sleep-disordered breathing did not moderate the association between QTc length, QT variability and mortality (p > 0.05). CONCLUSION Sleep-disordered breathing was associated with some measures of ventricular repolarization. However, sleep-disordered breathing was not an effect modifier for the relationship between QTc and QT variability and mortality.
Collapse
Affiliation(s)
- Salma I Patel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA.
| | - Wojciech Zareba
- Clinical Cardiovascular Research Center, University of Rochester Medical Center, USA
| | - Bonnie LaFleur
- UAHS Center for Biomedical Informatics and Biostatistics, University of Arizona, USA; BIO5, University of Arizona, USA; R. Ken Coit College of Pharmacy University of Arizona, USA
| | - Jean-Phillipe Couderc
- Clinical Cardiovascular Research Center, University of Rochester Medical Center, USA
| | - Xiaojuan Xia
- Clinical Cardiovascular Research Center, University of Rochester Medical Center, USA
| | - Raymond Woosley
- Division of Clinical Data Analytics and Decision Support, University of Arizona College of Medicine, Phoenix, USA
| | - Imran Y Patel
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA
| | - Daniel Combs
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Department of Pediatrics, University of Arizona College of Medicine, Tucson, USA
| | - Saif Mashaqi
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA
| | - Stuart F Quan
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA; Division of Sleep and Circadian Disorders, Brigham and Women's Hospital, Harvard Medical School, USA
| | - Sairam Parthasarathy
- UAHS Center for Sleep and Circadian Sciences, University of Arizona, USA; Division of Pulmonary, Allergy, Critical Care Medicine and Sleep Medicine, University of Arizona College of Medicine, Tucson, USA
| |
Collapse
|
5
|
The Tp-e/QT ratio as a predictor of nocturnal premature ventricular contraction events in patients with obstructive sleep apnea. Sleep Breath 2022; 27:469-476. [DOI: 10.1007/s11325-022-02626-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 04/05/2022] [Accepted: 04/22/2022] [Indexed: 10/18/2022]
|
6
|
Fitzpatrick J, Kerns ES, Kim ED, Sozio SM, Jaar BG, Estrella MM, Tereshchenko LG, Monroy-Trujillo JM, Parekh RS, Bourjeily G. Functional outcomes of sleep predict cardiovascular intermediary outcomes and all-cause mortality in incident hemodialysis patients. J Clin Sleep Med 2021; 17:1707-1715. [PMID: 33779539 DOI: 10.5664/jcsm.9304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
STUDY OBJECTIVES Patients with end-stage kidney disease (ESKD) commonly experience sleep disturbances. Sleep disturbance has been inconsistently associated with mortality risk in hemodialysis patients, but the burden of symptoms from sleep disturbances has emerged as a marker that may shed light on these discrepancies and guide treatment decisions. This study examines whether functional outcomes of sleep are associated with increased risk of intermediary CV outcomes or mortality among adults initiating hemodialysis. METHODS In 228 participants enrolled in the Predictors of Arrhythmic and Cardiovascular risk in ESRD (PACE) study, the Functional Outcomes of Sleep Questionnaire-10 (FOSQ-10), which assesses functional outcomes of daytime sleepiness, was administered within 6 months of enrollment. Intermediary CV outcomes included QTc [ms], heart rate variance [ms²], left ventricular mass index [g/m², LVMI], and left ventricular hypertrophy [LVH]. The association of FOSQ-10 score with all-cause mortality was examined using proportional hazards regression. Results: Mean age was 55 years, median BMI was 28 kg/m² (IQR 24,33), with 70% African Americans. Median FOSQ-10 score was 19.7 (IQR: 17.1,20.0). A 10% lower FOSQ-10 score was associated with increased mortality risk (HR 1.09, 95%CI 1.01-1.18). Lower FOSQ-10 scores were associated with longer QTc duration and lower heart rate variance, but not LVMI or LVH. CONCLUSIONS In adults initiating dialysis, sleep-related functional impairment is common and is associated with intermediary cardiovascular disease measures and increased mortality risk. Future studies should assess the impact of screening for sleep disturbances in ESKD patients to identify individuals at increased risk for cardiovascular complications and death.
Collapse
Affiliation(s)
- Jessica Fitzpatrick
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Eric S Kerns
- Lahey Hospital and Medical Center, Burlington, MA
| | - Esther D Kim
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD.,Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, MD
| | - Stephen M Sozio
- Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, MD.,Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Bernard G Jaar
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD.,Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, MD.,Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD.,Nephrology Center of Maryland, Baltimore, MD
| | - Michelle M Estrella
- Kidney Health Research Collaborative, Department of Medicine, University of California, San Francisco and Department of Medicine, San Francisco VA Health Care System, San Francisco, CA
| | - Larisa G Tereshchenko
- Knight Cardiovascular Institute, Department of Medicine, Oregon Health and Science University, Portland, OR
| | | | - Rulan S Parekh
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD.,Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD.,Division of Nephrology, Department of Pediatrics and Medicine, The Hospital for Sick Children, University Health Network and University of Toronto, Ontario, Canada
| | - Ghada Bourjeily
- Department of Medicine, The Miriam Hospital, Warren Alpert Medical School of Brown University, Providence, RI
| |
Collapse
|
7
|
Linz B, Sattler SM, Flethøj M, Høtbjerg Hansen ME, Hesselkilde EM, Saljic A, Wirth K, Linz D, Tfelt-Hansen J, Jespersen T. Arrhythmogenic mechanisms of acute obstructive respiratory events in a porcine model of drug-induced long QT. Heart Rhythm 2021; 18:1384-1391. [PMID: 33722764 DOI: 10.1016/j.hrthm.2021.03.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/17/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Obstructive sleep apnea is associated with increased risk of sudden cardiac death. OBJECTIVE The purpose of this study was to elucidate changes in ventricular repolarization and electromechanical interaction during obstructive respiratory events simulated by intermittent negative upper airway pressure (INAP) in pigs. We also investigated the effect of a reduced repolarization reserve in drug-induced long QT (LQT) following INAP-induced changes in ventricular repolarization. METHODS In sedated spontaneously breathing pigs, 75 seconds of INAP was applied by a negative pressure device connected to the endotracheal tube. Ventricular electromechanical coupling was determined by the electromechanical window (EMW) before (pre-INAP), during (INAP), and after INAP (post-INAP). Incidence rates of premature ventricular contractions (PVCs) were measured respectively. A drug-induced LQT was modeled by treating the pigs with the hERG1 blocker dofetilide (DOF). RESULTS Whereas QT interval increased during and decreased after INAP (pre-INAP: 273 ± 5 ms; INAP 281 ± 6 ms; post-INAP 254 ± 9 ms), EMW shortened progressively throughout INAP and post-INAP periods (pre-INAP 81 ± 4 ms; post-INAP 44 ± 7 ms). DOF shortened EMW at baseline. Throughout INAP, EMW decreased in a comparable fashion as before DOF (pre-INAP/+DOF 61 ± 7 ms; post-INAP/+DOF 14 ± 9 ms) but resulted in shorter absolute EMW levels. Short EMW levels were associated with increased occurrence of PVCs (pre-INAP 7 ± 2 ms vs post-INAP 26 ± 6 ms; P = .02), which were potentiated in DOF pigs (pre-INAP/+DOF 5 ± 2 ms vs post-INAP/+DOF 40 ± 8 ms; P = .006). Administration of atenolol prevented post-INAP EMW shortening and decreased occurrence of PVCs. CONCLUSION Transient dissociation of ventricular electromechanical coupling during simulated obstructive respiratory events creates a dynamic ventricular arrhythmogenic substrate, which is sympathetically mediated and aggravated by drug-induced LQT.
Collapse
Affiliation(s)
- Benedikt Linz
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Stefan Michael Sattler
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mette Flethøj
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Malthe Emil Høtbjerg Hansen
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Eva Melis Hesselkilde
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Arnela Saljic
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Dominik Linz
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark; Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia; Department of Cardiology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Jacob Tfelt-Hansen
- Department of Cardiology, The Heart Centre, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark; Department of Forensic Medicine, Faculty of Medical Sciences, University of Copenhagen, Denmark
| | - Thomas Jespersen
- Faculty of Health and Medical Sciences, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
8
|
Shi H, Jiang X. Correlation Between QTc Prolongation and Obstructive Sleep Apnea in Patients with Type 2 Diabetes Mellitus. Med Sci Monit 2020; 26:e926954. [PMID: 32853184 PMCID: PMC7478427 DOI: 10.12659/msm.926954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Obstructive sleep apnea (OSA) plays an important role in the progression of cardiovascular disease (CVD), and is a common symptom in patients with type 2 diabetes mellitus (T2DM). Prolongation of corrected QT interval (QTc) reflects ventricular arrhythmias and CVD. The aim of this study was to explore the relationship between OSA and QTc in T2DM patients and to evaluate the potential application of QTc in clinical practice. MATERIAL AND METHODS A total of 358 T2DM patients were involved in this study. OSA was diagnosed with apnea-hypopnea index ≥5 by full-night polysomnography and QTc was measured by a 12-lead electrocardiogram (ECG). Patients were grouped into 2 groups based on median QTc, and clinical data were studied. Logistic regression analysis was used to investigate the association between OSA and QTc with adjusted age, sex, body mass index (BMI), hypertension, total bilirubin (TBL), and smoking history. RESULTS Among 358 T2DM patients, 59.2% had OSA. Compared to those in the QTc <418 ms group, older patients, females, patients with higher BMI, and OSA patients in the QTc ≥418 ms group were more likely to have OSA (p<0.05). Correlation analysis suggested that OSA was associated with longer QTc (OR: 2.355, 95% CI: 1.529-3.626, p<0.001). For T2DM patients with QTc ≥418 ms, older patients (OR: 1.042, 95% CI: 1.042-1.064, p<0.001), females (OR: 2.36, 95% CI: 1.371-4.063, p<0.01), and patients with higher BMI (OR: 1.113, 95% CI: 1.037-1.195, p<0.01) were significantly more likely to have OSA. CONCLUSIONS In this cross-sectional study, we found that the presence and severity of OSA was associated with QTc prolongation in 358 patients with T2DM, and age, female sex, and BMI appear to be independent risk factors for OSA and CVD.
Collapse
Affiliation(s)
- Huan Shi
- Department of Endocrinology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China (mainland)
| | - Xiaohong Jiang
- Department of Endocrinology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China (mainland)
| |
Collapse
|
9
|
Daytime QT by Routine 12-Lead ECG Is Prolonged in Patients with Severe Obstructive Sleep Apnea. SLEEP DISORDERS 2020; 2020:3029836. [PMID: 32089892 PMCID: PMC7025071 DOI: 10.1155/2020/3029836] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 01/11/2020] [Indexed: 01/08/2023]
Abstract
Background Obstructive sleep apnea (OSA) has been linked to sudden cardiac death (SCD). Prolonged QT is a recognized electrocardiographic (ECG) marker of abnormal ventricular repolarization linked to increased risk of SCD. We hypothesized that individuals with OSA have more pronounced abnormality in daytime QT interval. Methods We reviewed consecutive patients who underwent clinically indicated polysomnography with 12-lead ECG within 1 year at a single center. Heart rate-corrected QT interval (QTc) was compared by OSA severity class (normal/mild: apnea-hypopnea index (AHI) < 15/hr (n = 72); moderate: 15-30 (n = 72); moderate: 15-30 (n = 72); moderate: 15-30 (. Results A total of 249 patients were included. QTc was similar between the normal/mild and moderate groups, and the overall QTc trend increased across OSA (normal/mild: 435.6 ms; moderate: 431.36; severe: 444.4; p trend = 0.03). Abnormal QTc was found amongst 34% of male and 31% of female patients. Patients with severe OSA had longer QTc compared with normal/mild OSA (mean difference (95% CI): 10.0 ms (0.5, 19.0), p trend = 0.03). Abnormal QTc was found amongst 34% of male and 31% of female patients. Patients with severe OSA had longer QTc compared with normal/mild OSA (mean difference (95% CI): 10.0 ms (0.5, 19.0), p trend = 0.03). Abnormal QTc was found amongst 34% of male and 31% of female patients. Patients with severe OSA had longer QTc compared with normal/mild OSA (mean difference (95% CI): 10.0 ms (0.5, 19.0), p trend = 0.03). Abnormal QTc was found amongst 34% of male and 31% of female patients. Patients with severe OSA had longer QTc compared with normal/mild OSA (mean difference (95% CI): 10.0 ms (0.5, 19.0). Conclusions In a sleep clinic cohort, severe OSA was associated with higher QTc and clinically defined abnormal QTc compared with nonsevere OSA.
Collapse
|
10
|
Kwon Y, Logan J, Pusalavidyasagar S, Kasai T, Cheong CS, Lee CH. Sleep Apnea and Heart. SLEEP MEDICINE RESEARCH 2019; 10:67-74. [PMID: 32699652 DOI: 10.17241/smr.2019.00493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Scientific investigations in the past few decades have supported the important role of sleep in various domains of health. Sleep apnea is a highly prevalent yet underdiagnosed sleep disorder representing a valid cardiovascular risk factor, particularly for hypertension. While several studies have demonstrated the benefits of sleep apnea treatment on subclinical cardiovascular measures, there is a paucity of studies proving reduction of cardiovascular events and mortality. Sufficient and high-quality sleep is also important in the maintenance of cardiovascular health. Future investigations should focus on improving identification of patients at greatest risk of adverse cardiovascular s sequalae of sleep apnea and testing the therapeutic benefit of sleep apnea treatment in this vulnerable group.
Collapse
Affiliation(s)
- Younghoon Kwon
- Department of Medicine, University of Virginia, Charlottesville, VA 22908 USA
| | - Jeongok Logan
- University of Virginia School of Nursing, Charlottesville, VA 22908 USA
| | | | - Takatoshi Kasai
- Cardiovascular Respiratory Sleep Medicine, Department of Cardiovascular Medicine, Juntendo University Graduate School of Medicine, 2-1-1 Hongo, Bunkyoku, Tokyo, 113-8421, Japan
| | - Crystal Sj Cheong
- Department of Otolaryngology - Head & Neck Surgery, National University Hospital, Singapore
| | - Chi-Hang Lee
- Department of Cardiology, National University Heart Centre, Singapore
| |
Collapse
|
11
|
Abstract
Sleep plays an integral role in maintaining health and quality of life. Obstructive sleep apnea (OSA) is a prevalent sleep disorder recognized as a risk factor for cardiovascular disease (CVD) and arrhythmias. Sudden cardiac death (SCD) is a common and devastating event. Out-of-hospital SCD accounts for the majority of deaths from cardiac disease, which is the leading cause of death globally. A limited but emerging body of research have further elaborated on the link between OSA and SCD. In this article, we aim to provide a critical review of the existing evidence by addressing the following: What epidemiologic evidence exists linking OSA to SCD? What evidence exists for a pathophysiologic connection between OSA and SCD? Are there electrocardiographic markers of SCD found in patients with OSA? Does heart failure represent a major effect modifier regarding the relationship between OSA and SCD? What is the impact of sleep apnea treatment on SCD and cardiovascular outcomes? Finally, we elaborate on ongoing research to enhance our understanding of the OSA-SCD association.
Collapse
Affiliation(s)
- Jacob N Blackwell
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Mccall Walker
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Patrick Stafford
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Sebastian Estrada
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Selcuk Adabag
- Division of Cardiovascular Medicine, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Younghoon Kwon
- Division of Cardiovascular Medicine, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| |
Collapse
|
12
|
Brodovskaya TO, Grishina IF, Peretolchina TF, Solenskaia OG, Kovtun OP, Teplyakova OV, Chernjadev SA, Popov AA, Kurmin VV. Clues to the Pathophysiology of Sudden Cardiac Death in Obstructive Sleep Apnea. Cardiology 2018; 140:247-253. [PMID: 30205374 PMCID: PMC6262679 DOI: 10.1159/000490308] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/28/2018] [Accepted: 04/28/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Risk assessment of sudden cardiac death (SCD) is multifactorial and complex, especially among individuals without established cardiovascular disease. There are insufficiently investigated conditions that can affect arrhythmogenesis. One such condition is obstructive sleep apnea (OSA) syndrome, which is not on the list of risk factors of the Russian National Society of Arrhythmology. OBJECTIVE The aim of this review article is to discuss clues to the pathophysiology of SCD in OSA subjects. METHODS We searched the literature for data reporting the impact of apnea on arrhythmogenesis. The preferred languages were English and Russian. The most important clinical reports, as well as biochemistry and pathophysiology guides, were selected for inclusion in the review. RESULTS It was clearly observed in the searched literature that OSA is the crucial aspect of arrhythmogenesis. Among the clues are intermittent nocturnal hypoxia, reactive oxygen species, cardiomyocyte metabolism disturbances, myocardial electric heterogeneity, and intrathoracic pressure changes. CONCLUSION This review emphasizes the importance of the inclusion of OSA in the list of risk factors of the Russian National Society of Arrhythmology.
Collapse
Affiliation(s)
- Tatyana Olegovna Brodovskaya
- Federal State Budgetary Educational Institution of Higher Education “Ural State Medical University,” Ministry of Healthcare of the Russian Federation, Yekaterinburg, Russian Federation
| | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Viigimae M, Karai D, Pilt K, Pirn P, Huhtala H, Polo O, Meigas K, Kaik J. QT interval variability index and QT interval duration during different sleep stages in patients with obstructive sleep apnea. Sleep Med 2017; 37:160-167. [DOI: 10.1016/j.sleep.2017.06.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 05/26/2017] [Accepted: 06/13/2017] [Indexed: 10/19/2022]
|
14
|
Kwon Y, Koene RJ, Kwon O, Kealhofer JV, Adabag S, Duval S. Effect of Sleep-Disordered Breathing on Appropriate Implantable Cardioverter-Defibrillator Therapy in Patients With Heart Failure: A Systematic Review and Meta-Analysis. Circ Arrhythm Electrophysiol 2017; 10:e004609. [PMID: 28213507 DOI: 10.1161/circep.116.004609] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 01/10/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Patients with heart failure and reduced ejection fraction are at increased risk of malignant ventricular arrhythmias. Implantable cardioverter-defibrillator (ICD) is recommended to prevent sudden cardiac death in some of these patients. Sleep-disordered breathing (SDB) is highly prevalent in this population and may impact arrhythmogenicity. We performed a systematic review and meta-analysis of prospective studies that assessed the impact of SDB on ICD therapy. METHODS AND RESULTS Relevant prospective studies were identified in the Ovid MEDLINE, EMBASE, and Google Scholar databases. Weighted risk ratios of the association between SDB and appropriate ICD therapies were estimated using random effects meta-analysis. Nine prospective cohort studies (n=1274) were included in this analysis. SDB was present in 52% of the participants. SDB was associated with a 55% higher risk of appropriate ICD therapies (45% versus 28%; risk ratio, 1.55; 95% confidence interval, 1.32-1.83). In a subgroup analysis based on the subtypes of SDB, the risk was higher in both central (risk ratio, 1.50; 95% confidence interval, 1.11-2.02) and obstructive (risk ratio, 1.43; 95% confidence interval, 1.01-2.03) sleep apnea. CONCLUSIONS SDB is associated with an increased risk of appropriate ICD therapy in patients with heart failure and reduced ejection fraction.
Collapse
Affiliation(s)
- Younghoon Kwon
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.).
| | - Ryan J Koene
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.)
| | - Osung Kwon
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.)
| | - Jessica V Kealhofer
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.)
| | - Selcuk Adabag
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.)
| | - Sue Duval
- From the Cardiovascular Division, Department of Medicine, University of Virginia, Charlottesville (Y.K.); Cardiovascular Division, University of Minnesota Medical School, Minneapolis (R.J.K., J.V.K., S.D.); Department of Internal Medicine, Asan Medical Center, Ulsan Medical College, Seoul, Korea (O.K.); and Cardiovascular Division, Minneapolis VA Healthcare System, MN (S.A.)
| |
Collapse
|
15
|
Kwon Y, Picel K, Adabag S, Vo T, Taylor BC, Redline S, Stone K, Mehra R, Ancoli-Israel S, Ensrud KE. Sleep-disordered breathing and daytime cardiac conduction abnormalities on 12-lead electrocardiogram in community-dwelling older men. Sleep Breath 2016; 20:1161-1168. [PMID: 26971326 PMCID: PMC5018906 DOI: 10.1007/s11325-016-1326-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/26/2016] [Accepted: 02/22/2016] [Indexed: 12/20/2022]
Abstract
PURPOSE Nocturnal cardiac conduction abnormalities are commonly observed in patients with sleep-disordered breathing (SDB). However, few population-based studies have examined the association between SDB and daytime cardiac conduction abnormalities. METHODS We examined a random sample of 471 community-dwelling men, aged ≥67 years, enrolled in the multi-center Outcomes of Sleep Disorders in Older Men (MrOS Sleep) study. SDB severity was categorized using percent of total sleep time with oxygen saturation <90 % (%TST < 90) and apnea hypopnea index (AHI). Cardiac conduction parameters were assessed by resting 12-lead electrocardiography (ECG). All analyses were adjusted for age, site, β-blocker use, coronary heart disease, calcium channel blocker use, and use of antiarrhythmic medications. RESULTS Mean age was 77 ± 6 years, median %TST < 90 was 0.7 (IQR 0.00-3.40), and median AHI was 7.06 (IQR 2.55-15.32). Men with greater nocturnal hypoxemia (%TST < 90 ≥ 3.5 %) compared with those without hypoxemia (%TST < 90 < 1.0 %) had a lower odds of bradycardia (OR 0.55 [0.32-0.94]) and right bundle branch block (RBBB) (OR 0.24 [0.08-0.75]) but a higher odds of ventricular paced rhythm (OR 4.42 [1.29-15.19]). Heart rate (HR) increased in a graded manner with increasing %TST < 90 (p-trend 0.01) and increasing AHI (p-trend 0.006), but these gradients were small in absolute magnitude. There were no associations of SDB measures with other ECG conduction parameters. CONCLUSIONS Greater nocturnal hypoxemia in older men was associated with a lower prevalence of daytime sinus bradycardia and RBBB, a higher prevalence of ventricular paced rhythm, and higher resting HR.
Collapse
Affiliation(s)
- Younghoon Kwon
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Katherine Picel
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Selcuk Adabag
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Tien Vo
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Brent C Taylor
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Department of Medicine, Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Susan Redline
- Brigham and Women's Hospital and Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Katie Stone
- Research Institute, California Pacific Medical Center, San Francisco, CA, USA
| | - Reena Mehra
- Department of Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Sonia Ancoli-Israel
- Department of Psychiatry, University of California-San Diego, La Jolla, CA, USA
| | - Kristine E Ensrud
- Department of Medicine, University of Minnesota, Minneapolis, MN, USA.
- Department of Medicine, Minneapolis VA Health Care System, Minneapolis, MN, USA.
| |
Collapse
|
16
|
Latshang TD, Kaufmann B, Nussbaumer-Ochsner Y, Ulrich S, Furian M, Kohler M, Thurnheer R, Saguner AM, Duru F, Bloch KE. Patients with Obstructive Sleep Apnea Have Cardiac Repolarization Disturbances when Travelling to Altitude: Randomized, Placebo-Controlled Trial of Acetazolamide. Sleep 2016; 39:1631-7. [PMID: 27306264 DOI: 10.5665/sleep.6080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 05/20/2016] [Indexed: 01/09/2023] Open
Abstract
STUDY OBJECTIVES Obstructive sleep apnea (OSA) promotes myocardial electrical instability and may predispose to nocturnal sudden cardiac death. We evaluated whether hypobaric hypoxia during altitude travel further impairs cardiac repolarization in patients with OSA, and whether this is prevented by acetazolamide, a drug known to improve oxygenation and central sleep apnea at altitude. METHODS Thirty-nine OSA patients living < 600 m, discontinued continuous positive airway pressure therapy during studies at 490 m and during two sojourns of 3 days at altitude (2 days at 1860 m, 1 day at 2590 m). During one altitude sojourn, patients took acetazolamide, during the other placebo, or vice versa, according to a randomized, double-blind crossover design. Twelve-lead electrocardiography and pulse oximetry (SpO2) were recorded during nocturnal polysomnography. Heart rate corrected mean QT intervals during the entire night (meanQTc) and during 1 min of the night with the longest meanQTc (maxQTc) were determined. RESULTS At 490 m the median nocturnal SpO2 was 93%, medians of meanQTc and maxQTc were 420 ms and 478 ms. At 2590 m, on placebo, SpO2 was lower (85%), and meanQTc and maxQTc were prolonged to 430 ms and 510 ms (P < 0.02 vs. 490 m, all corresponding comparisons). At 2590 m on acetazolamide, median SpO2 was increased to 88% (P < 0.05 vs. placebo), meanQTc was reduced to 427 ms (P < 0.05 vs. placebo), whereas maxQTc remained increased at 502 ms (P = ns vs. placebo). CONCLUSIONS At 2590 m OSA patients experienced cardiac repolarization disturbances in association with hypoxemia. Prolongation of meanQTc at altitude was prevented and hypoxemia was improved by acetazolamide, whereas maxQTc remained increased suggesting imperfect protection from repolarization disturbances. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov ID: NTC-00714740. URL: www.clinicaltrials.gov.
Collapse
Affiliation(s)
- Tsogyal Daniela Latshang
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland
| | - Barbara Kaufmann
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland
| | | | - Silvia Ulrich
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland
| | - Michael Furian
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland
| | - Malcolm Kohler
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Robert Thurnheer
- Pulmonary Division, Cantonal Hospital Muensterlingen, Muensterlingen, Switzerland
| | | | - Firat Duru
- Department of Cardiology, University Heart Center Zurich, Zurich, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Konrad Ernst Bloch
- Sleep Disorders Center and Pulmonary Division, University Hospital of Zurich, Zurich, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| |
Collapse
|