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Garbilis A, Mednieks J. Differences in Heart Rate Variability in the Frequency Domain between Different Groups of Patients. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:900. [PMID: 38929516 PMCID: PMC11205485 DOI: 10.3390/medicina60060900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/22/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Background and Objectives: Heart rate variability (HRV) is defined as a physiological variation in duration between sinus beats. The aim of this study was to research and analyze the HRV between various groups of patients. Materials and Methods: A retrospective study was conducted in an outpatient setting. Patients who had undergone a tilt-table test were selected for this study and were divided into three groups based on their self-reported health anamnesis: group 1 (n = 84, mean age 45.8 ± 17.8) consisted of patients with no known orthostatic intolerance or neurodegenerative disease, group 2 consisted of patients with a known or suspected orthostatic intolerance (n = 50, mean age 46.5 ± 18.6), and group 3 consisted of patients with a known or suspected neurodegenerative disorder (n = 29, mean age 55.6 ± 20.4). During the tilt-table test, HRV frequency-domain parameters-normalized low frequency (LFnu) and high frequency (HFnu), absolute powers-absolute low frequency (LF-RRI), absolute high frequency (HF-RRI), and LF/HF ratio-were recorded during 5 min rest in the supine position. Results: Group 1 had a reduced LFnu at 52.93% (SD: 18.00) compared to group 2 at 58.57% (18.06) and group 3 at 61.80% (SD: 17.74), and group 1 had increased HFnu: group 1-47.08% (SD: 17.97), group 2-41.41% (SD: 18.03), and group 3-38.16% (SD: 14.7). LFnu and HFnu differences were statistically significant (p < 0.05). LF-RRI was reported as follows: group 1-531.32 ms2 (SD: 578.57), group 2-346.2 ms2 (SD: 447.96), and group 3-143.21 ms2 (SD: 166.96). HF-RRI was reported as follows: group 1-835.87 ms2 (SD: 1625.42), group 2-297.46 ms2 (SD: 507.15), and group 3-70.83 ms2 (SD: 75.67). LF-RRI and HF-RRI comparisons between groups were statistically significant (p < 0.001). LF/HF ratios were reported as follows: group 1-1.91 (SD: 2.29), group 2-2.43 (SD: 2.33), and group 3-2.54 (SD: 2.17). LF/HF ratio comparisons between groups were statistically significant at p < 0.05. Conclusions: This study shows that patients with known or suspected orthostatic intolerance and neurodegenerative disorders have reduced HRV, possibly caused by reduced parasympathetic modulation. HRV in patients with known or suspected neurodegenerative disorders is reduced more severely than in patients with orthostatic disorders. Other studies in HRV have indicated a possible increase of risk in cardiovascular disorders in patients with reduced HRV, and therefore, HRV analysis could be a potential clinical diagnostic tool. However, the lack of universally agreed upon methodology, reference values, and possible external and internal factor influence hinders the introduction of HRV examinations into wider clinical practice.
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Affiliation(s)
- Artūrs Garbilis
- Department of Residency, Rīga Stradiņš University, Dzirciema 16, LV-1007 Rīga, Latvia
- Department of Neurology and Neurosurgery, Rīga Stradiņš University, Pilsoņu 13, LV-1002 Rīga, Latvia;
| | - Jānis Mednieks
- Department of Neurology and Neurosurgery, Rīga Stradiņš University, Pilsoņu 13, LV-1002 Rīga, Latvia;
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Kajisa T, Kuroi T, Hara H, Sakai T. Correlation analysis of heart rate variations and glucose fluctuations during sleep. Sleep Med 2024; 113:180-187. [PMID: 38042028 DOI: 10.1016/j.sleep.2023.11.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/23/2023] [Accepted: 11/23/2023] [Indexed: 12/04/2023]
Abstract
OBJECTIVE The body's glucose concentration is influenced by carbohydrate intake, insulin-induced carbohydrate reduction, and hepatic glycogen breakdown induced by stress hormones. This study investigated the potential of employing glucose fluctuations as a measure of stress by examining the relationship between heart rate variability (HRV) data and glucose levels during sleep in healthy subjects. METHODS In this cross-sectional study, a chest-worn electrocardiogram (ECG) and continuous glucose monitoring device (CGM) were respectively used to monitor the heart rate intervals and glucose fluctuations of five subjects (two males, three females) during sleep. A time-series correlation analysis was performed on the HRV data extracted from heart rate intervals and the corresponding glucose fluctuation data. RESULTS The time-series analysis of ECG and CGM data collected from subjects during sleep (n = 25 nights) revealed a moderate negative correlation between glucose levels and HRV, with a cross-correlation coefficient of r = -0.453. CONCLUSION Similar to HRV, changes in stress levels can be detected by observing glucose fluctuations, particularly during sleep when the impact of food intake can be eliminated. Our findings highlight a significant correlation between glucose levels and HRV, indicating that glucose fluctuations can be used as an indicator of autonomic nervous system activity in an exploratory study.
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Affiliation(s)
- Taira Kajisa
- Course of Bio-Nano Science Fusion, Graduate School of Interdisciplinary New Science, Toyo University, 2100 Kujirai, Kawagoe, Saitama, 350-8585, Japan.
| | - Toshiya Kuroi
- Hakuju Institute for Health Science Co., Ltd, 1-37-5 Tomigaya, Shibuya, Tokyo, Japan
| | - Hiroyuki Hara
- Hakuju Institute for Health Science Co., Ltd, 1-37-5 Tomigaya, Shibuya, Tokyo, Japan
| | - Toshiyuki Sakai
- Department of Student, Student Support Division, Toyo University, 2100 Kujirai, Kawagoe, Saitama, 350-8585, Japan
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Huang WC, Wu CS, Chang KC, Chen HS, Chang CK, Hwang JJ, Huang SH, Chen YM, Cheng BW, Weng MH, Hsu CC, Huang WL. Can peripheral biomarkers reflect the psychological condition in geriatric populations? The influence of cardiovascular comorbidities. Psychogeriatrics 2023; 23:458-465. [PMID: 36895138 DOI: 10.1111/psyg.12954] [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: 11/26/2022] [Revised: 01/31/2023] [Accepted: 02/23/2023] [Indexed: 03/11/2023]
Abstract
BACKGROUND Although previous studies indicated the association between peripheral biomarkers and psychological conditions, a higher prevalence of cardiovascular diseases (CVD) among geriatric populations may hinder the applicability of the biomarkers. The objective of this study was to assess the adequacy of the application of biomarkers to evaluate psychological conditions among geriatric populations. METHOD We collected information on the demographics and history of CVD in all participants. All participants completed the Brief Symptom Rating Scale (BSRS-5) and the Chinese Happiness Inventory (CHI), which are the measurement of negative and positive psychological conditions, respectively. Four indicators of the peripheral biomarkers, including the standard deviation of normal to normal RR intervals (SDNN), finger temperature, skin conductance, and electromyogram were collected for each participant during a 5-min resting state. Multiple linear regression models were conducted to evaluate the association between the biomarkers and the psychological measurements (BSRS-5, CHI) with and without the inclusion of the participants with CVD. RESULTS A total of 233 participants without CVD (non-CVD group) and 283 participants with CVD (CVD group) were included. The CVD group was older and with higher body mass index compared to the non-CVD group. In the multiple linear regression model with all participants, only BSRS-5 scores had a positive association with electromyogram. After the exclusion of the CVD group, the association between the BSRS-5 scores and electromyogram was more relevant, while CHI scores became positively associated with SDNN. CONCLUSIONS A single measurement of the peripheral biomarker may be insufficient to depict psychological conditions among geriatric populations.
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Affiliation(s)
- Wei-Chia Huang
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Chi-Shin Wu
- Department of Psychiatry, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan.,National Centre for Geriatrics and Welfare Research, National Health Research Institutes, Huwei, Taiwan.,Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Kai-Chieh Chang
- Department of Neurology, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan.,Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
| | - Hsin-Shui Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan
| | - Chin-Kai Chang
- Department of Geriatrics and Gerontology, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan
| | - Juey-Jen Hwang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Su-Hua Huang
- Department of Dietetics, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan
| | - Yung-Ming Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan.,National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
| | - Bor-Wen Cheng
- Department of Industrial Engineering and Management, National Yunlin University of Science and Technology, Douliu, Taiwan
| | - Min-Hsiu Weng
- Graduate School of Applied Chinese Studies, National Yunlin University of Science and Technology, Douliu, Taiwan
| | - Chih-Cheng Hsu
- National Centre for Geriatrics and Welfare Research, National Health Research Institutes, Huwei, Taiwan
| | - Wei-Lieh Huang
- Department of Psychiatry, National Taiwan University Hospital Yunlin Branch, Douliu, Taiwan.,Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan
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Dong Y, Li X, Zheng W, Man Y, Liu J, Yu P, Zhang F, Yang B, Cao K. Prevalence and heart rate variability characteristics of premature ventricular contractions detected by 24-hour Holter among outpatients with palpitations in China: a cross-sectional study. BMJ Open 2022; 12:e059337. [PMID: 35918118 PMCID: PMC9351320 DOI: 10.1136/bmjopen-2021-059337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE To analyse the prevalence and heart rate variability (HRV) characteristics of premature ventricular contraction (PVC) detected by 24-hour Holter among Chinese outpatients with palpitations. DESIGN A cross-sectional study. SETTING This study was conducted in a tertiary hospital. PARTICIPANTS A total of 4754 outpatients who received 24-hour Holter for palpitations. MAIN OUTCOME MEASURES Prevalence, HRV time-domain and frequency-domain analyses of 24-hour Holter, and echocardiographic parameters were assessed. Propensity score matching (PSM) was applied to balance baseline variables (age, gender) to decrease the bias between comparison groups. RESULTS The prevalence of PVC was 67.7% (3220/4754), and was higher in men than women (69.9% vs 66.0%, p=0.004); the prevalence of frequent PVCs (PVC burden≥5%) was 7.7% (368/4754). Older patients had the highest frequency of PVC among all patients. However, among 3220 patients with PVC, younger patients' PVC burden was much higher. Matched 1:1 by age and gender, the HRV time-domain parameters in patients with PVC were all lower than those in patients without PVC (all p<0.05); for the HRV frequency-domain parameters, the patients with frequent PVCs had a higher low frequency/high frequency (LF/HF) ratio (5.4 vs 2.8, p<0.001) than those with PVC burden less than 5%. CONCLUSIONS The prevalence of PVC and frequent PVCs were 67.7% and 7.7%, respectively, detected by 24-hour Holter among Chinese outpatients with palpitations. Decreased HRV time-domain parameters suggested the occurrence of PVC, and increased LF/HF ratio represented the imbalance of autonomic nervous system in patients with frequent PVCs. Further studies are needed to understand the HRV indexes in PVC patients.
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Affiliation(s)
- Yan Dong
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaorong Li
- Department of Cardiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wei Zheng
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yilong Man
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jin Liu
- Science and Technology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ping Yu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Fengxiang Zhang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Bing Yang
- Department of Cardiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kejiang Cao
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
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Injeyan HS, Budgell BS. Mitigating Bias in the Measurement of Heart Rate Variability in Physiological Studies of Spinal Manipulation: A Comparison Between Authentic and Sham Manipulation. J Manipulative Physiol Ther 2022; 45:104-113. [PMID: 35753877 DOI: 10.1016/j.jmpt.2022.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVE The purpose of this study was to identify sources and strategies for the mitigation of bias in studies of spinal manipulation and heart rate variability. METHODS A small-scale study compared the effects of a single session of sham and authentic cervical manipulation on heart rate variability as measured by power spectrum analysis. The participants were a sample of 31 healthy young students from the Canadian Memorial Chiropractic College, randomized into 2 study arms. The effectiveness of blinding was evaluated, and 2 alternative methods of data analysis were explored to mitigate risk of bias. Following execution of the study, the stages of implementation and data processing were scored against version 2 of the Cochrane risk-of-bias tool for randomized trials for risk of bias. RESULTS The risk of bias arising from (1) the randomization process, (2) missing outcome data, and (3) selection of reported results was judged to be low. Risk of bias in (1) deviations from intended interventions (particularly due to the failure of masking) and (2) the measurement of the outcome, for example, through cleaning of the data, were judged to be high. CONCLUSION The use of power spectrum analysis of heart rate variability based on 5-minute recordings of echocardiogram pre-and post-intervention contained multiple sources of bias that were challenging to mitigate. Based upon these findings, power spectrum analysis of heart rate variability using these parameters may be ill-suited to the study of physiological effects of spinal manipulative therapy.
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Affiliation(s)
| | - Brian S Budgell
- Department of Research and Innovation, Canadian Memorial Chiropractic College, Toronto, Ontario, Canada.
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Yang Z, Liu P, Luo F, Liu Y, Lai J, Cheng C, Liu Q. Risk Factors and Heart Rate Variability Associated with Left Ventricular Enlargement in Patients with Frequent Premature Ventricular Contractions. Cardiology 2022; 147:421-435. [PMID: 35551378 DOI: 10.1159/000524985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 05/07/2022] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Premature ventricular contractions (PVCs) were now well recognized to carry the risk of inducing left ventricular (LV) enlargement and were closely related to the cardiac autonomic nervous activity quantified by heart rate variability (HRV) analysis. However, the relationship between LV enlargement and HRV in patients with frequent PVCs is still unclear. This study aimed to investigate the risk factors and HRV for LV enlargement in patients with frequent PVCs. METHODS Patients with frequent PVCs (n = 571), whose PVC burden counts >10,000/24 h or PVC burden >10%, were recruited. Patients were divided into LV enlargement group (n = 161), defined as female left ventricular end-diastolic diameter (LVEDD) >49.8 mm or male LVEDD >54.2 mm, and LV normal group (n = 410). Two groups were compared on their clinical, electrocardiographic, and HRV parameters. Logistic regression analysis was used to predict the risk factors of LV enlargement in patients with frequent PVCs. The parameters of echocardiography, Holter monitoring, and HRV were collected after ablation. RESULTS There were significant differences between the patients with left enlargement and with normal LV structure, in terms of sex, left ventricular ejection fraction (LVEF), level of N-terminal pro-brain natriuretic peptide (NT-proBNP), 24-h PVC burden, with nonsustained ventricular tachycardia, multifocal PVCs, QRS duration of PVC, and values of very low-frequency power of HRV parameter (all p < 0.05). Multivariate analysis showed that female gender (odds ratio [OR] = 2.753, p < 0.001), increased NT-proBNP (OR = 1.011, p = 0.022), increased LVEF (OR = 0.292, p < 0.001), increased 24-h PVC burden (OR = 1.594, p < 0.001), increased standard deviation of all NN intervals (SDNN) (OR = 1.100, p = 0.003), increased the proportion of consecutive NN intervals that differ by more than 50 ms (pNN50) (OR = 0.844, p = 0.026) were predictors for LV enlargement in patients with frequent PVCs. 84.4% (54/64) of patients with LV enlargement at baseline had normalized their LV structure after ablation. The values of SDNN, standard deviation of the averages of NN intervals in all 5-min segments, the square root of the mean of the sum of the squares of differences between adjacent NN intervals, pNN50, low-frequency power (LF), LF/high-frequency power ratio of patients were significantly decreased after ablation (all p < 0.05). CONCLUSION Female gender, increased level of NT-proBNP, lower LVEF, higher PVC burden, increased sympathetic parameters SDNN, and reduced parasympathetic parameters pNN50 were the independent risk factors of LV enlargement in patients with frequent PVCs. LV enlargement induced by PVCs can be reversible after PVC elimination by ablation. The activities of sympathetic and parasympathetic were reduced after ablation.
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Affiliation(s)
- Zhenyu Yang
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Liu
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feifei Luo
- Department of Cardiology, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiwen Liu
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinsheng Lai
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chongsheng Cheng
- Department of Pulmonary and Critical Care Medicine, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Qigong Liu
- Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Matteucci A, Bonanni M, Centioni M, Zanin F, Geuna F, Massaro G, Sangiorgi G. Home Management of Heart Failure and Arrhythmias in Patients with Cardiac Devices during Pandemic. J Clin Med 2021; 10:jcm10081618. [PMID: 33920350 PMCID: PMC8069073 DOI: 10.3390/jcm10081618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/02/2021] [Accepted: 04/07/2021] [Indexed: 12/22/2022] Open
Abstract
Background: The in-hospital management of patients with cardiac implantable electronic devices (CIEDs) changed early in the COVID-19 pandemic. Routine in-hospital controls of CIEDs were converted into remote home monitoring (HM). The aim of our study was to investigate the impact of the lockdown period on CIEDs patients and its influence on in-hospital admissions through the analysis of HM data. Methods: We analysed data recorded from 312 patients with HM during the national quarantine related to COVID-19 and then compared data from the same period of 2019. Results: We observed a reduction in the number of HM events in 2020 when compared to 2019. Non-sustained ventricular tachycardia episodes decreased (18.3% vs. 9.9% p = 0.002) as well as atrial fibrillation episodes (29.2% vs. 22.4% p = 0.019). In contrast, heart failure (HF) alarm activation was lower in 2019 than in 2020 (17% vs. 25.3% p = 0.012). Hospital admissions for critical events recorded with CIEDs dropped in 2020, including those for HF. Conclusions: HM, combined with telemedicine use, has ensured the surveillance of CIED patients. In 2020, arrhythmic events and hospital admissions decreased significantly compared to 2019. Moreover, in 2020, patients with HF arrived in hospital in a worse clinical condition compared to previous months.
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Affiliation(s)
- Andrea Matteucci
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.B.); (M.C.); (F.Z.); (F.G.)
- Correspondence: ; Tel.: +39-06-2090-4044
| | - Michela Bonanni
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.B.); (M.C.); (F.Z.); (F.G.)
| | - Marco Centioni
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.B.); (M.C.); (F.Z.); (F.G.)
| | - Federico Zanin
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.B.); (M.C.); (F.Z.); (F.G.)
| | - Francesco Geuna
- Department of Experimental Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy; (M.B.); (M.C.); (F.Z.); (F.G.)
| | - Gianluca Massaro
- Division of Cardiology, University Hospital “Tor Vergata”, 00133 Rome, Italy;
| | - Giuseppe Sangiorgi
- Department of Biomedicine and Prevention, Tor Vergata University, 00133 Rome, Italy;
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Park YM, Kim CY, Seo J, Jang AY, Cha MS, Kang WC, Han SH, Shin MS, Choi IS. Significant reduction in the density of premature ventricular complex with ß-blocker medication in fast rate-dependent premature ventricular complex. INTERNATIONAL JOURNAL OF ARRHYTHMIA 2020. [DOI: 10.1186/s42444-020-00028-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
There is little data regarding types of idiopathic premature ventricular complex (PVC) according to heart rate dependence.
Methods
One hundred and sixty-eight patients with idiopathic PVC were enrolled in this study. Evaluation of the number of PVCs and total ventricular beats, and the density of PVC was done using 24 h Holter monitoring. Patients were divided into groups as having: fast rate-dependent (Group I), slow rate-dependent (Group II), and heart rate-independent PVC (Group III) based on the relationship between the number of hourly PVC and hourly heart rate. After ß-blocker medication, 24 h Holter monitoring was repeated.
Results
Among the 168 subjects, 66 (39.3%) patients were in Group I, 18 (10.7%) in Group II, and 84 (50.0%) in Group III. There were no significant differences in the baseline number of PVCs and total ventricular beats, and the density of PVC among the three groups. The number of PVCs was significantly reduced in patients with Group I (14,030 ± 11,463 beats/day vs. 7401 ± 10,464 beats/day, p < 0.001), and total ventricular beat was significantly reduced in patients with Group I (109,223 ± 17,564 beats/day vs. 96,182 ± 15,594 beats/day, p < 0.001) and Group III (106,515 ± 13,468 beats/day vs. 97,995 ± 12,960 beats/day, p < 0.001) after ß-blocker medication. The density of PVC was significantly reduced only in patients of Group I (12.9 ± 10.3% vs. 7.4 ± 10.3%, p = 0.001) after ß-blocker medication.
Conclusions
The type of PVC according to the heart rate dependence should be considered when treating idiopathic PVC with ß-blockers.
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Huang WC, Liu WS, Chen TT, Chen WH, Huang WL. Parasympathetic activity as a potential biomarker of negative symptoms in patients with schizophrenia. Asia Pac Psychiatry 2020; 12:e12392. [PMID: 32452616 DOI: 10.1111/appy.12392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 03/26/2020] [Accepted: 04/22/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Autonomic dysfunction in patients with schizophrenia has raised concern considering the higher cardiovascular mortality and morbidity rate. This phenomenon has been demonstrated using various measurements and is inferred to be associated with demographics, medical treatment, and psychopathology. However, few have targeted the role of negative symptoms within schizophrenia. METHODS Schizophrenia patients with stationary psychopathology were recruited from a chronic ward, a daycare center, and a nonintensive case management program. Demographic data, medication history, the Positive and Negative Syndrome Scale (PANSS) score, the Personal and Social Performance Scale (PSP) score, and the five-minute resting-state heart rate variability (HRV) were collected at trial initiation (Time 1) and a year later (Time 2). The relationships between variables and HRV indices were evaluated using correlation and regression analyses. RESULTS A total of 63 participants were recruited at Time 1, with 29 participants remaining at Time 2. Correlation analyses showed a negative correlation between the PANSS negative score (PANSS-N) and total power (TP), low-frequency power (LF), and high-frequency power (HF) at Time 1. The results were further examined with multiple linear regression analysis and remained significant between the PANSS-N score and HF (β = -0.306, P = .012). A generalized estimating equation model revealed the above negative association to be significant considering both timepoints. DISCUSSION The negative association between negative symptom severity and parasympathetic activity was significant, which may inspire further research into the corresponding treatment, the mechanisms, and the use of HRV as an applicable biomarker for treatment response.
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Affiliation(s)
- Wei-Chia Huang
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Shih Liu
- Department of Psychiatry, National Taiwan University Hospital, Yun-Lin Branch, Yunlin, Taiwan
| | - Tzu-Ting Chen
- Department of Psychiatry, National Taiwan University Hospital, Yun-Lin Branch, Yunlin, Taiwan
| | - Wen-Hao Chen
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Lieh Huang
- Department of Psychiatry, National Taiwan University Hospital, Yun-Lin Branch, Yunlin, Taiwan.,Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan
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Abe M, Mitani A, Yao A, Zong L, Hoshi K, Yanagimoto S. Awareness of Malocclusion Is Closely Associated with Allergic Rhinitis, Asthma, and Arrhythmia in Late Adolescents. Healthcare (Basel) 2020; 8:healthcare8030209. [PMID: 32664631 PMCID: PMC7551248 DOI: 10.3390/healthcare8030209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Oral infectious diseases are typified by dental caries and periodontal diseases and are known to be associated with various systemic diseases. However, clear associations between occlusal disorders and systemic diseases have not yet been established. We investigated the association between an awareness of malocclusion and common diseases in late adolescence. Methods: We retrospectively reviewed the data of mandatory medical questionnaires that are a legal requirement of the freshman medical checkup. We collected the data of all the students who completed the questionnaires between April 2017 and 2019. The data were analyzed using the χ2 test and multivariate analysis was performed with a binomial logistic regression model. Results: The subjects were 9098 students aged 17–19 (mean age 18.3 years). The rate of awareness of malocclusion was 2.14% (195 out of 9098 eligible subjects; 160 males and 35 females). These students had significantly greater rates of allergic rhinitis, asthma, and arrhythmia (p < 0.001). Multivariate analysis revealed significant rates of allergic rhinitis (odds ratio [OR] 2.184, 95% confidence interval [CI]: 1.468–3.250, p < 0.001), asthma (OR 1.843, 95%CI: 1.153–2.945, p = 0.011), and arrhythmia (OR 2.809, 95%CI: 1.083–7.288, p = 0.034) among students with an awareness of malocclusion. Conclusion: We identified close associations between an awareness of malocclusion and systemic diseases including allergic rhinitis, asthma, and arrhythmia in the late adolescent population. These results reinforce the associations between malocclusion and allergic rhinitis and asthma, as well as providing novel insight into the association of malocclusion and arrhythmia. However, further research is necessary to confirm the associations and explore the mechanisms underlying these associations.
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Affiliation(s)
- Masanobu Abe
- Division for Health Service Promotion, The University of Tokyo, Tokyo 113-0033, Japan; (A.M.); (A.Y.); (S.Y.)
- Department of Oral & Maxillofacial Surgery, The University of Tokyo Hospital, Tokyo 113-8655, Japan;
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
- Correspondence:
| | - Akihisa Mitani
- Division for Health Service Promotion, The University of Tokyo, Tokyo 113-0033, Japan; (A.M.); (A.Y.); (S.Y.)
| | - Atsushi Yao
- Division for Health Service Promotion, The University of Tokyo, Tokyo 113-0033, Japan; (A.M.); (A.Y.); (S.Y.)
| | - Liang Zong
- Division of Epigenomics, National Cancer Center Research Institute, Tokyo 104-0045, Japan;
| | - Kazuto Hoshi
- Department of Oral & Maxillofacial Surgery, The University of Tokyo Hospital, Tokyo 113-8655, Japan;
| | - Shintaro Yanagimoto
- Division for Health Service Promotion, The University of Tokyo, Tokyo 113-0033, Japan; (A.M.); (A.Y.); (S.Y.)
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11
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Neary JP, Singh J, Christiansen JP, Teckchandani TA, Potter KL. Causal Link between Ventricular Ectopy and Concussion. Case Rep Med 2020; 2020:7154120. [PMID: 32565823 PMCID: PMC7292985 DOI: 10.1155/2020/7154120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/30/2020] [Accepted: 05/09/2020] [Indexed: 11/23/2022] Open
Abstract
We present a unique case study report of a male individual with a history of mild nonischaemic cardiomyopathy, with no ventricular ectopy, that at the age of 76 years sustained multiple concussions (i.e., mild traumatic brain injury) within a week of each other. Concussion symptoms included cognitive difficulties, "not feeling well," lethargy, fatigue, and signs of depression. He was later medically diagnosed with postconcussion syndrome. The patient, WJT, was referred for cardiac and neurological assessment. Structural neuroimaging of the brain (MRI) was unremarkable, but electrocardiography (ECG) assessments using a 24-hour Holter monitor revealed significant incidence of ventricular ectopy (9.4%; 9,350/99,836 beats) over a period of 5-6 months after injury and then a further increase in ventricular ectopy to 18% (15,968/88,189 beats) during the subsequent 3 months. The patient was then prescribed Amiodarone 200 mg, and his ventricular ectopy and concussion symptoms completely resolved simultaneously within days. To the authors' knowledge, our study is the first to show a direct link between observable and documented cardiac dysregulation and concussion symptomology. Our study has important implications for both cardiac patients and the patients that sustain a concussion, and if medically managed with appropriate pharmacological intervention, it can reverse ventricular ectopy and concussion symptomology. More research is warranted to investigate the mechanisms for this dramatic and remarkable change in cardiac and cerebral functions and to further explore the brain-heart interaction and the intricate autonomic interaction that exists between the extrinsic and intracardiac nervous systems.
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Affiliation(s)
- J. Patrick Neary
- Faculty of Kinesiology & Health Studies, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
| | - Jyotpal Singh
- Faculty of Kinesiology & Health Studies, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
| | - Jonathan P. Christiansen
- University of Auckland, Faculty of Medical and Health Sciences, 85 Park Road, Grafton, Auckland 1023, New Zealand
| | - Taylor A. Teckchandani
- Faculty of Kinesiology & Health Studies, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
| | - Kirsty L. Potter
- Waitemata Cardiology, 181 Shakespeare Road, Milford, Auckland 0620, New Zealand
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12
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Gurbuz AS, Ozturk S, Kilicgedik A, Akgun T, Kalkan ME, Demir S, Efe SC, Acar RD, Akcakoyun M, Kirma C. Effects of atrial electromechanical delay and ventriculoatrial conduction over the atrial functions in patients with frequent extrasystole and preserved ejection fraction. PACING AND CLINICAL ELECTROPHYSIOLOGY: PACE 2019; 42:321-326. [PMID: 30653680 DOI: 10.1111/pace.13606] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 12/01/2018] [Accepted: 01/04/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND The deterioration of left atrial and ventricular functions was demonstrated in patients with frequent ventricular extrasystole (fVES). The exact pathophysiology of left atrial dysfunction in patients with fVES is unclear. Retrograde ventriculoatrial conduction (VAC) often accompanies fVES, which may contribute to atrial dysfunction. We investigated whether atrial electromechanical delay and VAC are related to these atrial functions in patients with frequent right ventricular outflow tract (RVOT) VES and preserved ejection fraction (pEF). METHODS This study included 21 patients with pEF (eight males, 48 ± 11 years), who had experienced more than 10 000 RVOT-VES during 24-h Holter monitoring and had undergone electrophysiological study/ablation. The study also included 20 healthy age- and sex-matched control subjects. Transthoracic echocardiography was performed on all of the subjects. Atrial conduction time was obtained by using tissue Doppler imaging. Strain analysis was performed with two-dimensional speckle tracking echocardiography. RESULTS The peak atrial longitudinal strain was significantly impaired in patients with fVES (P = 0.01). In addition, although the interatrial and left atrial conduction delay times were significantly different between each group (P < 0.001, P < 0.001), the right atrial conduction delay times were similar. When patients with fVES were divided into groups depending on the existence of retrograde VAC, atrial deformation parameters and conduction delay time did not significantly differ between either group. CONCLUSION Frequent RVOT-VES causes left atrial dysfunction. This information is obtained through strain analyses and recordings of left atrial conduction times in patients with pEF. Regardless, retrograde VAC is not related to atrial dysfunction.
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Affiliation(s)
- Ahmet Seyfeddin Gurbuz
- Department of Cardiology, Necmettin Erbakan University, Meram Faculty of Medicine, Konya, Turkey
| | - Semi Ozturk
- Department of Cardiology, Haseki Training and Research Hospital, Istanbul, Turkey
| | - Alev Kilicgedik
- Department of Cardiology, Kartal Kosuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Taylan Akgun
- Department of Cardiology, Kartal Kosuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Mehmet Emin Kalkan
- Department of Cardiology, Mehmet Akif Ersoy Thorax and Cardiovascular Surgery Education and Research Hospital, Istanbul, Turkey
| | - Serdar Demir
- Department of Cardiology, Kartal Kosuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | - Suleyman Cagan Efe
- Department of Cardiology, Istanbul Training and Research Hospital, Turkey
| | - Rezzan Deniz Acar
- Department of Cardiology, Kartal Kosuyolu Heart Training and Research Hospital, Istanbul, Turkey
| | | | - Cevat Kirma
- Department of Cardiology, Kartal Kosuyolu Heart Training and Research Hospital, Istanbul, Turkey
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13
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Guo W, Lv T, She F, Miao G, Liu Y, He R, Xue Y, Nu NK, Yang J, Li K, Zhang P. The impact of continuous positive airway pressure on heart rate variability in obstructive sleep apnea patients during sleep: A meta-analysis. Heart Lung 2018; 47:516-524. [PMID: 30031552 DOI: 10.1016/j.hrtlng.2018.05.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 05/21/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Heart rate variability (HRV), modulated by cardiac autonomic function, is impaired in obstructive sleep apnea (OSA). However, the effect of continuous positive airway pressure (CPAP) on HRV is debated. OBJECTIVES To investigate the associations between CPAP and HRV in OSA. METHODS Based on literature from five databases published through August 2017, we performed a meta-analysis of cohort studies of OSA treated with CPAP. The change of low-frequency band (LF), high-frequency band (HF) and the ratio between LF and HF (LHR) were analyzed. RESULTS Eleven studies were included. Decreased LF (SMD = -0.32, 95%CI: -0.62,-0.01; P = 0.043) and HF (SMD = -0.51, 95%CI: -0.95, -0.08, P = 0.020) were shown while measured on CPAP. When measured off CPAP, HF was increased remarkably (SMD: 0.31, 95%CI: 0.02, 0.60, P = 0.034). CONCLUSIONS CPAP can improve autonomic activity, which might be one mechanism to reduce the risk of cardiovascular diseases in OSA.
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Affiliation(s)
- Wenjia Guo
- School of Clinical Medicine, Tsinghua University, NO.1, Tsinghua Yuan, Haidian District, Beijing, 100084, China
| | - Tingting Lv
- School of Medicine, Tsinghua University, NO.1, Tsinghua Yuan, Haidian District, Beijing, 100084, China
| | - Fei She
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Guobin Miao
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Yuanwei Liu
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Rong He
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Yajun Xue
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Nang Kham Nu
- School of Clinical Medicine, Tsinghua University, NO.1, Tsinghua Yuan, Haidian District, Beijing, 100084, China
| | - Jing Yang
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China
| | - Kun Li
- School of Clinical Medicine, Tsinghua University, NO.1, Tsinghua Yuan, Haidian District, Beijing, 100084, China
| | - Ping Zhang
- School of Clinical Medicine, Tsinghua University, NO.1, Tsinghua Yuan, Haidian District, Beijing, 100084, China; Department of Cardiology, Beijing Tsinghua Changgung Hospital, Tsinghua University, NO.168, LiTang Road, Beijing, 102218, China.
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14
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Frigy A, Csiki E, Caraşca C, Szabó IA, Moga VD. Autonomic influences related to frequent ventricular premature beats in patients without structural heart disease. Medicine (Baltimore) 2018; 97:e11489. [PMID: 29995813 PMCID: PMC6076203 DOI: 10.1097/md.0000000000011489] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
To study the possible role of autonomic influences on the occurrence of frequent premature ventricular beats (VPBs) in subjects without structural heart disease.24-hour Holter ECG recordings (≥1500 VPBs/d, sinus rhythm) of 20 symptomatic patients (9 women, 11 men, mean age 58.9 years) without structural heart disease were used for the study. The circadian distribution pattern of VPBs was studied (paired t test) by dividing the day into 3 periods (16:00-22:00-06:00-16:00), and correlations were analyzed between the absolute (ln transformed) and relative (% of total beats) average hourly numbers of VPBs and the hourly mean values of global and vagal time domain parameters of heart rate variability (Pearson correlation).No significant (P > .3 for every comparison) tendency for circadian distribution of VPBs was found. However, VPBs showed a significant correlation with rMSSD (r = 0.51 and P = .02 for the relative number), which became even stronger if VPBs were > 8000/d (r = 0.65 and P = .04 for both numbers).The significant correlation between the number of VPBs and a vagally mediated parameter underlines the triggering/permitting effect of parasympathetic tone on ventricular ectopy. This fact suggests that initiation of beta-blocker therapy could not be recommended routinely in these patients.
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Affiliation(s)
- Attila Frigy
- Department of Internal Medicine IV, University of Medicine and Pharmacy of Tirgu Mures
| | - Endre Csiki
- Department of Gastroenterology, Clinical County Hospital Mures
| | - Cosmin Caraşca
- Department of Forensic Medicine, University of Medicine and Pharmacy of Tirgu Mures, Tirgu Mures
| | - István Adorján Szabó
- Department of Internal Medicine IV, University of Medicine and Pharmacy of Tirgu Mures
| | - Victor-Dan Moga
- Department of Cardiology I, Victor Babes University of Medicine and Pharmacy Timisoara, Timisioara, Romania
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15
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Kume S, Nishimura Y, Mizuno K, Sakimoto N, Hori H, Tamura Y, Yamato M, Mitsuhashi R, Akiba K, Koizumi JI, Watanabe Y, Kataoka Y. Music Improves Subjective Feelings Leading to Cardiac Autonomic Nervous Modulation: A Pilot Study. Front Neurosci 2017; 11:108. [PMID: 28344545 PMCID: PMC5344927 DOI: 10.3389/fnins.2017.00108] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 02/20/2017] [Indexed: 01/05/2023] Open
Abstract
It is widely accepted that listening to music improves subjective feelings and reduces fatigue sensations, and different kinds of music lead to different activations of these feelings. Recently, cardiac autonomic nervous modulation has been proposed as a useful objective indicator of fatigue. However, scientific considerations of the relation between feelings of fatigue and cardiac autonomic nervous modulation while listening to music are still lacking. In this study, we examined which subjective feelings of fatigue are related to participants' cardiac autonomic nervous function while they listen to music. We used an album of comfortable and relaxing environmental music, with blended sounds from a piano and violin as well as natural sound sources. We performed a crossover trial of environmental music and silent sessions for 20 healthy subjects, 12 females, and 8 males, after their daily work shift. We measured changes in eight types of subjective feelings, including healing, fatigue, sleepiness, relaxation, and refreshment, using the KOKORO scale, a subjective mood measurement system for self-reported feelings. Further, we obtained measures of cardiac autonomic nervous function on the basis of heart rate variability before and after the sessions. During the music session, subjective feelings significantly shifted toward healing and a secure/relaxed feeling and these changes were greater than those in the silent session. Heart rates (ΔHR) in the music session significantly decreased compared with those in the silent session. Other cardiac autonomic parameters such as high-frequency (HF) component and the ratio of low-frequency (LF) and HF components (LF/HF) were similar in the two sessions. In the linear regression analysis of the feelings with ΔHR and changes in LF/HF (ΔLF/HF), increases and decreases in ΔHR were correlated to the feeling axes of Fatigue-Healing and Anxiety/Tension–Security/Relaxation, whereas those in ΔLF/HF were related to the feeling axes of Sleepiness–Wakefulness and Gloomy–Refreshed. This indicated that listening to music improved the participants' feelings of fatigue and decreased their heart rates. However, it did not reduce the cardiac LF/HF, suggesting that cardiac LF/HF might show a delayed response to fatigue. Thus, we demonstrated changes in cardiac autonomic nervous functions based on feelings of fatigue.
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Affiliation(s)
- Satoshi Kume
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science TechnologiesKobe, Japan; Department of Physiology, Osaka City University Graduate School of MedicineOsaka, Japan; Health Metrics Development Team, Integrated Research Group, RIKEN Compass to Healthy Life Research Complex Program, RIKEN Cluster for Science and Technology HubKobe, Japan
| | - Yukako Nishimura
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies Kobe, Japan
| | - Kei Mizuno
- Center for Health Science Innovation, Osaka City UniversityOsaka, Japan; Pathophysiological and Health Science Team, RIKEN Center for Life Science TechnologiesKobe, Japan; Health Evaluation Team, RIKEN Compass to Healthy Life Research Complex Program, RIKEN Cluster for Science and Technology HubKobe, Japan; Department of Medical Science on Fatigue, Osaka City University Graduate School of MedicineOsaka, Japan
| | - Nae Sakimoto
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies Kobe, Japan
| | - Hiroshi Hori
- Health Metrics Development Team, Integrated Research Group, RIKEN Compass to Healthy Life Research Complex Program, RIKEN Cluster for Science and Technology HubKobe, Japan; Center for Health Science Innovation, Osaka City UniversityOsaka, Japan
| | - Yasuhisa Tamura
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science Technologies Kobe, Japan
| | - Masanori Yamato
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science TechnologiesKobe, Japan; Department of Physiology, Osaka City University Graduate School of MedicineOsaka, Japan
| | | | | | - Jun-Ichi Koizumi
- Biosystem Engineering, Faculty of Engineering, Yokohama National University Yokohama, Japan
| | - Yasuyoshi Watanabe
- Department of Physiology, Osaka City University Graduate School of MedicineOsaka, Japan; Health Metrics Development Team, Integrated Research Group, RIKEN Compass to Healthy Life Research Complex Program, RIKEN Cluster for Science and Technology HubKobe, Japan; Center for Health Science Innovation, Osaka City UniversityOsaka, Japan; Pathophysiological and Health Science Team, RIKEN Center for Life Science TechnologiesKobe, Japan
| | - Yosky Kataoka
- Cellular Function Imaging Team, Division of Bio-function Dynamics Imaging, RIKEN Center for Life Science TechnologiesKobe, Japan; Department of Physiology, Osaka City University Graduate School of MedicineOsaka, Japan; Health Metrics Development Team, Integrated Research Group, RIKEN Compass to Healthy Life Research Complex Program, RIKEN Cluster for Science and Technology HubKobe, Japan; Center for Health Science Innovation, Osaka City UniversityOsaka, Japan
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Barutçu A, Bekler A, Temiz A, Kırılmaz B, Gazi E, Altun B, Özdemir S, Aksu FU. Assessment of the effects of frequent ventricular extrasystoles on the left ventricle using speckle tracking echocardiography in apparently normal hearts. Anatol J Cardiol 2016; 16:48-54. [PMID: 26467363 PMCID: PMC5336705 DOI: 10.5152/akd.2015.6166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective: Impairment in left ventricular (LV) function due to excessive ventricular extrasystoles (VESs) occurs during long-time follow-up. Speckle tracking echocardiography (STE) has been shown to be superior to conventional methods for evaluating cardiac functions. We aimed to use STE for early detection of LV dysfunction in patients with apparently normal hearts who have frequent VESs. Methods: Fifty-five patients with frequent VESs were identified according to the Lown classification (Grade 2; unifocal more than 30 times in 1 h). Subjects aged 22-60 years with frequent VESs that had been detected for at least 1 year were included in the study according to the inclusion criteria. Forty-five subjects with similar demographic characteristics, but without VESs, were included as the control group. All participants were evaluated by STE. Results: Fifty-five patients with frequent VESs (mean age 47 years, range 22-60 years; 42.2% male) and 45 control subjects (mean age 46 years, range 22–60 years; 37.8% male) were enrolled in the study. Global LV longitudinal strain (GLS) was decreased in patients with frequent VESs (-18.41±3.37 and -21.82±2.43; p<0.001). In addition, global LV circumferential strain was decreased in patients with frequent VESs (-16.83±6.06, -20.51±6.02; p<0.001). The frequency and exposure time of VESs were negatively correlated with GLS (r=-0.398, p<0.001; r=-0.191, p=0.001, respectively). Conclusion: STE revealed that LV functions were decreased in patients with VESs. This deterioration increased with the frequency and exposure time of VESs. Impairment of LV function due to excessive VESs occurs during long-time follow-up. STE may be used for early detection of LV dysfunction.
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Affiliation(s)
- Ahmet Barutçu
- Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University; Çanakkale-Turkey.
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Pah AR, Rasmussen-Torvik LJ, Goel S, Greenland P, Kho AN. Big Data: What Is It and What Does It Mean for Cardiovascular Research and Prevention Policy. CURRENT CARDIOVASCULAR RISK REPORTS 2014. [DOI: 10.1007/s12170-014-0424-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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