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Kim MJ, Rhim G. Blood Pressure Response to the Head-Up Tilt Test in Benign Paroxysmal Positional Vertigo. J Clin Med 2023; 12:7725. [PMID: 38137794 PMCID: PMC10744299 DOI: 10.3390/jcm12247725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
The vestibular organ is involved in controlling blood pressure through vestibulosympathetic reflexes of the autonomic nervous system. This study aimed to investigate the effect of benign paroxysmal positional vertigo (BPPV) on blood pressure control by the autonomic nervous system by observing changes in blood pressure before and after BPPV treatment using the head-up tilt test (HUTT). A total of 278 patients who underwent the HUTT before and after treatment were included. The HUTT measured blood pressure repeatedly on the day of diagnosis and the day of complete recovery, and the results were analyzed using repeated measures analysis of variance. Regarding the difference in the systolic blood pressure of patients with BPPV, the blood pressure at 1, 2, and 3 min in the upright position after complete recovery was significantly lower than before treatment (p = 0.001, p = 0.001, and p = 0.012, respectively). Blood pressure at 1 and 2 min in the diastolic blood pressure of patients with BPPV in the upright position after complete recovery was significantly lower than before treatment (p = 0.001 and p = 0.034, respectively). This study shows that BPPV increases blood pressure during the initial response to standing in the HUTT.
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Affiliation(s)
- Moon-Jung Kim
- Department of Laboratory Medicine, Myongji Hospital, Hanyang University Medical Center, Goyang 10475, Republic of Korea;
| | - Guil Rhim
- Department of Otorhinolaryngology, One Otorhinolaryngology Clinic, Paju 10924, Republic of Korea
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Luebke L, Gouverneur P, Szikszay TM, Adamczyk WM, Luedtke K, Grzegorzek M. Objective Measurement of Subjective Pain Perception with Autonomic Body Reactions in Healthy Subjects and Chronic Back Pain Patients: An Experimental Heat Pain Study. SENSORS (BASEL, SWITZERLAND) 2023; 23:8231. [PMID: 37837061 PMCID: PMC10575054 DOI: 10.3390/s23198231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023]
Abstract
Multiple attempts to quantify pain objectively using single measures of physiological body responses have been performed in the past, but the variability across participants reduces the usefulness of such methods. Therefore, this study aims to evaluate whether combining multiple autonomic parameters is more appropriate to quantify the perceived pain intensity of healthy subjects (HSs) and chronic back pain patients (CBPPs) during experimental heat pain stimulation. HS and CBPP received different heat pain stimuli adjusted for individual pain tolerance via a CE-certified thermode. Different sensors measured physiological responses. Machine learning models were trained to evaluate performance in distinguishing pain levels and identify key sensors and features for the classification task. The results show that distinguishing between no and severe pain is significantly easier than discriminating lower pain levels. Electrodermal activity is the best marker for distinguishing between low and high pain levels. However, recursive feature elimination showed that an optimal subset of features for all modalities includes characteristics retrieved from several modalities. Moreover, the study's findings indicate that differences in physiological responses to pain in HS and CBPP remain small.
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Affiliation(s)
- Luisa Luebke
- Institute of Health Sciences, Department of Physiotherapy, Pain and Exercise Research Luebeck (P.E.R.L.), Universität zu Lübeck, 23562 Lübeck, Germany; (L.L.); (T.M.S.); (K.L.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Luebeck, 23562 Lübeck, Germany
| | - Philip Gouverneur
- Institute of Medical Informatics, University of Lübeck, 23562 Lübeck, Germany;
| | - Tibor M. Szikszay
- Institute of Health Sciences, Department of Physiotherapy, Pain and Exercise Research Luebeck (P.E.R.L.), Universität zu Lübeck, 23562 Lübeck, Germany; (L.L.); (T.M.S.); (K.L.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Luebeck, 23562 Lübeck, Germany
| | - Wacław M. Adamczyk
- Laboratory of Pain Research, Institute of Physiotherapy and Health Sciences, The Jerzy Kukuczka Academy of Physical Education, 40-065 Katowice, Poland;
- Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH 45229-3026, USA
| | - Kerstin Luedtke
- Institute of Health Sciences, Department of Physiotherapy, Pain and Exercise Research Luebeck (P.E.R.L.), Universität zu Lübeck, 23562 Lübeck, Germany; (L.L.); (T.M.S.); (K.L.)
- Center of Brain, Behavior and Metabolism (CBBM), University of Luebeck, 23562 Lübeck, Germany
| | - Marcin Grzegorzek
- Institute of Medical Informatics, University of Lübeck, 23562 Lübeck, Germany;
- Department of Knowledge Engineering, University of Economics in Katowice, 40-287 Katowice, Poland
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Francia P, Viveros D, Falasconi G, Penela D, Soto-Iglesias D, Martí-Almor J, Alderete J, Saglietto A, Bellido AF, Franco-Ocaña P, Zaraket F, Matiello M, Fernández-Armenta J, San Antonio R, Berruezo A. Clinical impact of aging on outcomes of cardioneuroablation for reflex syncope or functional bradycardia: Results from the cardionEuroabLation: patiEnt selection, imaGe integrAtioN and outComEs-The ELEGANCE multicenter study. Heart Rhythm 2023; 20:1279-1286. [PMID: 37329936 DOI: 10.1016/j.hrthm.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/27/2023] [Accepted: 06/09/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Cardioneuroablation (CNA) is a novel treatment for reflex syncope. The effect of aging on CNA efficacy is not fully understood. OBJECTIVE The purpose of this study was to assess the impact of aging on candidacy and efficacy of CNA for treating vasovagal syncope (VVS), carotid sinus syndrome (CSS), and functional bradyarrhythmia. METHODS The ELEGANCE (cardionEuroabLation: patiEnt selection, imaGe integrAtioN and outComEs) multicenter study assessed CNA in patients with reflex syncope or severe functional bradyarrhythmia. Patients underwent pre-CNA Holter electrocardiography (ECG), head-up tilt testing (HUT), and electrophysiological study. CNA candidacy and efficacy was assessed in 14 young (18-40 years), 26 middle-aged (41-60 years), and 20 older (>60 years) patients. RESULTS Sixty patients (37 men; mean age 51 ± 16 years) underwent CNA. The majority (80%) had VVS, 8% had CSS, and 12% had functional bradycardia/atrioventricular block. Pre-CNA Holter ECG, HUT, and electrophysiological findings did not differ across age groups. Acute CNA success was 93%, without differences between age groups (P = .42). Post-CNA HUT response was negative in 53%, vasodepressor in 38%, cardioinhibitory in 7%, and mixed in 2%, without differences across age groups (P = .59). At follow-up (8 months, interquartile range 4-15), 53 patients (88%) were free of symptoms. Kaplan-Meier curves did not show differences in event-free survival between age groups (P = .29). The negative predictive value of a negative HUT was 91.7%. CONCLUSION CNA is a viable treatment for reflex syncope and functional bradyarrhythmia in all ages, and is highly effective in mixed VVS. HUT is a key step in postablation clinical assessment.
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Affiliation(s)
- Pietro Francia
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain; Cardiology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, University Sapienza, Rome, Italy
| | - Daniel Viveros
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - Giulio Falasconi
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - Diego Penela
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - David Soto-Iglesias
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - Julio Martí-Almor
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - José Alderete
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - Andrea Saglietto
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | | | - Paula Franco-Ocaña
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain
| | - Fatima Zaraket
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain; Clínica del Pilar, Barcelona, Spain
| | | | | | - Rodolfo San Antonio
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain; Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Antonio Berruezo
- Arrhythmia Department, Teknon Heart Institute, Teknon Medical Center, Barcelona, Spain.
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Renno-Busch S, Hildesheim H, van Uem JMT, Sünkel U, Röben B, Brockmann K, Mychajliw C, Eschweiler GW, Berg D, Maetzler W. Autonomic Symptoms in Older Adults Are Common and Associated With Health-Related Quality of Life. Front Neurol 2021; 12:757748. [PMID: 34887829 PMCID: PMC8649956 DOI: 10.3389/fneur.2021.757748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/26/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Autonomic symptoms are common in older adults, and a large body of literature focusing on age-related diseases shows that autonomic symptoms in these diseases constrain Health-Related Quality of Life (HRQoL). To our best knowledge, the association between autonomic symptoms in older adults, independent of specific diseases, and HRQoL has not yet been assessed. Aim: To assess the frequency and the effect of autonomic symptoms in general, as well as orthostatic intolerance, vasomotor, secretomotor, gastrointestinal, bladder, and pupillomotor symptoms, on HRQoL in older adults. Methods: Cross-sectional data of the fourth visit of the Tübinger evaluation of Risk factors for Early detection of Neurodegeneration (TREND) study were included. Autonomic symptoms, as assessed with the Composite Autonomic Symptom Score 31 (COMPASS 31), were quantified and compared with HRQoL, as assessed with the EuroQol five-level version (EQ-5D-5L). Statistical analyses included Spearman's rank correlation and multiple linear regression analysis. Results: The analysis included 928 participants with a median of 68 years; 47% were women. Of those, 85% reported at least one autonomic symptom. Gastrointestinal and secretomotor symptoms were most common. The COMPASS 31 total score and all subdomains were significantly associated with reduced HRQoL. Among the subdomains, the strongest correlations with HRQoL were found for gastrointestinal and bladder symptoms. Overall, autonomic symptoms alone explained 20% of the variance of HRQoL; when depressive mood was added, the model explained 32%. Conclusion: Autonomic symptoms are associated with HRQoL and depressive symptoms in older adults.
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Affiliation(s)
- Sarah Renno-Busch
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Hanna Hildesheim
- Department of Neurology, Christian-Albrechts University, Kiel, Germany
| | | | - Ulrike Sünkel
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Benjamin Röben
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Kathrin Brockmann
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Christian Mychajliw
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Gerhard W. Eschweiler
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - Daniela Berg
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- Department of Neurology, Christian-Albrechts University, Kiel, Germany
| | - Walter Maetzler
- Center for Neurology, Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- Department of Neurology, Christian-Albrechts University, Kiel, Germany
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Christensen MMB, Hansen CS, Fleischer J, Vistisen D, Byberg S, Larsen T, Laursen JC, Jørgensen ME. Normative data on cardiovascular autonomic function in Greenlandic Inuit. BMJ Open Diabetes Res Care 2021; 9:e002121. [PMID: 34598933 PMCID: PMC8487188 DOI: 10.1136/bmjdrc-2021-002121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 09/04/2021] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Diabetes is increasing among Greenlandic Inuit; however, the prevalence of cardiovascular autonomic neuropathy (CAN) is yet unknown. The assessment of CAN requires an ability to differentiate between normal and abnormal. The aim was to establish normative reference data of cardiovascular autonomic function in Greenlandic Inuit. RESEARCH DESIGN AND METHODS In this cross-sectional study, cardiovascular autonomic function was evaluated in participants without diabetes during the Greenlandic Population Study 2018 and in the town Qasigiannguit in 2020. Assessment included cardiovascular autonomic reflex tests (CARTs) and power spectral analysis of heart rate variability (HRV). Normative reference limits were estimated by applying piecewise linear quantile regression models at the fifth percentile. Models were adjusted for age and sex. RESULTS Based on examinations of 472 participants (61.7% females), normative reference data was established for all outcomes. Mean age was 54 years (SD 13.1). Higher age was inversely associated with all outcomes of CARTs and HRV. A linear fall in cardiovascular autonomic function tended to level off beyond age of 60 or 70 years for supine-to-upright position ratio and low frequency power. However, the number of observations in subjects older than 60 or 70 years was limited, which may have caused a flattening of the curve around that age. No other associations were found. CONCLUSIONS The general level of the CARTs and HRV for all age groups is notably lower than in previous studies from other nationalities. We speculate that sociodemographic and cultural aspects of the Greenlandic Inuit population including body mass index, smoking, physical activity and alcohol consumption may have affected the cardiovascular autonomic function.
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Affiliation(s)
- Marie Mathilde Bjerg Christensen
- Department of Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Department of Public Health, Aarhus Universitet, Aarhus, Midtjylland, Denmark
| | | | - Jesper Fleischer
- Steno Diabetes Center Aarhus, Aarhus, Denmark
- Steno Diabetes Center Zealand, Holbæk, Denmark
| | - Dorte Vistisen
- Department of Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Stine Byberg
- Department of Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Trine Larsen
- Greenland Center of Health Research, Institute of Nursing and Health Science, University of Greenland, Ilulissat, Greenland
| | - Jens Christian Laursen
- Department of Complication Research, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- University of Copenhagen, Copenhagen, Denmark
| | - Marit Eika Jørgensen
- Department of Clinical Epidemiology, Steno Diabetes Center Copenhagen, Gentofte, Denmark
- Center for Health Research in Greenland, University of Southern Denmark Faculty of Health Sciences, Odense, Denmark
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Rivasi G, Torabi P, Secco G, Ungar A, Sutton R, Brignole M, Fedorowski A. Age-related tilt test responses in patients with suspected reflex syncope. Europace 2021; 23:1100-1105. [PMID: 33564843 DOI: 10.1093/europace/euab024] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/19/2021] [Indexed: 12/17/2022] Open
Abstract
AIMS Tilt testing (TT) is recognized to be a valuable contribution to the diagnosis and the pathophysiology of vasovagal syncope (VVS). This study aimed to assess the influence of age on TT responses by examination of a large patient cohort. METHODS AND RESULTS Retrospective data from three experienced European Syncope Units were merged to include 5236 patients investigated for suspected VVS by the Italian TT protocol. Tilt testing-positivity rates and haemodynamics were analysed across age-decade subgroups. Of 5236 investigated patients, 3129 (60%) had a positive TT. Cardioinhibitory responses accounted for 16.5% of positive tests and were more common in younger patients, decreasing from the age of 50-59 years. Vasodepressor (VD) responses accounted for 24.4% of positive tests and prevailed in older patients, starting from the age of 50-59. Mixed responses (59.1% of cases) declined slightly with increasing age. Overall, TT positivity showed a similar age-related trend (P = 0.0001) and was significantly related to baseline systolic blood pressure (P < 0.001). Tilt testing was positive during passive phase in 18% and during nitroglycerine (TNG)-potentiated phase in 82% of cases. Positivity rate of passive phase declined with age (P = 0.001), whereas positivity rate during TNG remained quite stable. The prevalence of cardioinhibitory and VD responses was similar during passive and TNG-potentiated TT, when age-adjusted. CONCLUSIONS Age significantly impacts the haemodynamic pattern of TT responses, starting from the age of 50. Conversely, TT phase-passive or TNG-potentiated-does not significantly influence the type of response, when age-adjusted. Vagal hyperactivity dominates in younger patients, older patients show tendency to vasodepression.
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Affiliation(s)
- Giulia Rivasi
- Syncope Unit, Division of Geriatrics and Intensive Care Unit, University of Florence and Careggi Hospital, Largo Brambilla 3, 50139 Florence, Italy
| | - Parisa Torabi
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Gianmarco Secco
- IRCCS Istituto Auxologico Italiano, Faint & Fall Programme, Ospedale San Luca, Milano, Italy.,Emergency Medicine Unit, IRCCS Policlinico San Matteo Foundation, University of Pavia, Pavia, Italy
| | - Andrea Ungar
- Syncope Unit, Division of Geriatrics and Intensive Care Unit, University of Florence and Careggi Hospital, Largo Brambilla 3, 50139 Florence, Italy
| | - Richard Sutton
- National Heart and Lung Institute, Imperial College, Hammersmith Hospital, London, UK.,Department of Cardiology, Skåne University Hospital, Malmö, Sweden
| | - Michele Brignole
- IRCCS Istituto Auxologico Italiano, Faint & Fall Programme, Ospedale San Luca, Milano, Italy.,Arrhythmology Centre and Syncope Unit, Department of Cardiology, Ospedali del Tigullio, Lavagna, Italy
| | - Artur Fedorowski
- Department of Clinical Sciences, Lund University, Malmö, Sweden.,Department of Cardiology, Skåne University Hospital, Malmö, Sweden
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Chen SF, Pan HY, Huang CR, Huang JB, Tan TY, Chen NC, Hsu CY, Chuang YC. Autonomic Dysfunction Contributes to Impairment of Cerebral Autoregulation in Patients with Epilepsy. J Pers Med 2021; 11:jpm11040313. [PMID: 33920691 PMCID: PMC8073240 DOI: 10.3390/jpm11040313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 12/26/2022] Open
Abstract
Patients with epilepsy frequently experience autonomic dysfunction and impaired cerebral autoregulation. The present study investigates autonomic function and cerebral autoregulation in patients with epilepsy to determine whether these factors contribute to impaired autoregulation. A total of 81 patients with epilepsy and 45 healthy controls were evaluated, assessing their sudomotor, cardiovagal, and adrenergic functions using a battery of autonomic nervous system (ANS) function tests, including the deep breathing, Valsalva maneuver, head-up tilting, and Q-sweat tests. Cerebral autoregulation was measured by transcranial Doppler examination during the breath-holding test, the Valsalva maneuver, and the head-up tilting test. Autonomic functions were impaired during the interictal period in patients with epilepsy compared to healthy controls. The three indices of cerebral autoregulation—the breath-holding index (BHI), an autoregulation index calculated in phase II of the Valsalva maneuver (ASI), and cerebrovascular resistance measured in the second minute during the head-up tilting test (CVR2-min)—all decreased in patients with epilepsy. ANS dysfunction correlated significantly with impairment of cerebral autoregulation (measured by BHI, ASI, and CVR2-min), suggesting that the increased autonomic dysfunction in patients with epilepsy may augment the dysregulation of cerebral blood flow. Long-term epilepsy, a high frequency of seizures, and refractory epilepsy, particularly temporal lobe epilepsy, may contribute to advanced autonomic dysfunction and impaired cerebral autoregulation. These results have implications for therapeutic interventions that aim to correct central autonomic dysfunction and impairment of cerebral autoregulation, particularly in patients at high risk for sudden, unexplained death in epilepsy.
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Affiliation(s)
- Shu-Fang Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Hsiu-Yung Pan
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Chi-Ren Huang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Jyun-Bin Huang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- Department of Emergency Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Teng-Yeow Tan
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Nai-Ching Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chung-Yao Hsu
- Department of Neurology, School of Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Yao-Chung Chuang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (S.-F.C.); (H.-Y.P.); (C.-R.H.); (J.-B.H.); (T.-Y.T.); (N.-C.C.)
- College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Neurology, School of Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Institute for Translation Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Department of Biological Science, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Correspondence:
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Gurevich T, Merkin L, Rozenberg A, Fisher A, Atanasova Mishkova-Serafimova E, Klepikov D, Giladi N, Peretz C. Interrelationships between Survival, Sex, and Blood Pressure in Patients with Multiple System Atrophy. Neuroepidemiology 2021; 55:1-6. [PMID: 33601380 DOI: 10.1159/000512697] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 10/25/2020] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this study is to estimate survival among patients with multiple system atrophy-parkinsonian type (MSA-P) or cerebellar type MSA (MSA-C) in relation to blood pressure (BP) measurements, by sex. METHODS A cohort of 99 MSA patients was studied retrospectively. Their BP measurements were obtained during prolonged (40 min, vertical position) drug-free tilt testing. We used K-M survival curves and Cox regression to calculate adjusted (to age of onset) hazard ratios (HRs) of BP measurements on time to death by MSA subtype and sex. RESULTS Fifty-two MSA patients were males and 47 were females. Sixty-three of them had MSA-P and 36 had MSA-C. The mean age at motor symptom onset was 61.1 ± 10.4 years, and mean disease duration at the time of BP assessment was 8.0 ± 4.7 years. The 2 study groups (MSA-P and MSA-C) did not differ significantly in age at MSA onset, sex ratio, or disease duration. Survival time did not differ between the groups {medians: 12 years (95% confidence interval [CI]: 8-28) and 10 years (95% CI: 8-13), respectively}. The MSA-P group showed a trend towards better survival for males (log-rank p = 0.0925). The maximal diastolic orthostatic BP decline during tilt testing had a borderline positive association with death risk among MSA-C males (adjusted HR = 1.18, p = 0.0665), and systolic BP after 10 min in a supine position had a significant positive association with death risk among MSA-P males (adjusted HR = 1.06, p = 0.0354). CONCLUSIONS The findings of a sex-based difference in the effect of BP on death risk may be important for adjusting the therapeutic approach to MSA patients.
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Affiliation(s)
- Tanya Gurevich
- Movement Disorders Unit and Neuroautonomic Service, Neurological Institute, Tel-Aviv Medical Center, Tel-Aviv, Israel,
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel,
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel,
| | - Ludmila Merkin
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Alina Rozenberg
- School of Public Health, Tel-Aviv University, Tel-Aviv, Tel-Aviv, Israel
| | - Ariel Fisher
- Diagnostic Radiology Department University of Rochester Medical Center, Rochester, New York, USA
| | | | - Dina Klepikov
- Movement Disorders Unit and Neuroautonomic Service, Neurological Institute, Tel-Aviv Medical Center, Tel-Aviv, Israel
| | - Nir Giladi
- Movement Disorders Unit and Neuroautonomic Service, Neurological Institute, Tel-Aviv Medical Center, Tel-Aviv, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - Chava Peretz
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- School of Public Health, Tel-Aviv University, Tel-Aviv, Tel-Aviv, Israel
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Respiratory pump contributions in cerebrovascular and postural control responses during orthostatic stress in older women. Respir Physiol Neurobiol 2020; 275:103384. [DOI: 10.1016/j.resp.2020.103384] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 11/20/2022]
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Cardiovascular autonomic testing in the work-up of cerebellar ataxia: insight from an observational single center study. J Neurol 2019; 267:1097-1102. [PMID: 31893293 PMCID: PMC7109187 DOI: 10.1007/s00415-019-09684-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/18/2019] [Accepted: 12/20/2019] [Indexed: 12/20/2022]
Abstract
Background Cerebellar ataxias are a heterogeneous group of disorders of both genetic and non-genetic origin. In sporadic cases, two entities are recognized: multiple system atrophy of cerebellar type (MSA-C) and SAOA (sporadic adult-onset ataxia). The presence of severe cardiovascular autonomic failure reliably distinguishes MSA-C from other ataxias, but it may appear only late in the disease course. Objective To evaluate the diagnostic yield of cardiovascular autonomic function tests in the work-up of cerebellar ataxia. Methods We applied a cardiovascular autonomic tests battery in consecutive patients with neurodegenerative cerebellar ataxia and matched healthy controls. We recorded the presence of both orthostatic hypotension (OH) and blood pressure falls non-fulfilling the criteria of OH (non-OH BP). Sporadic cases were followed-up for an eventual conversion to MSA-C. Results Forty-two patients were recruited, 19 of whom with sporadic disease (2 probable MSA-C, 6 possible MSA-C, 11 SAOA). Sporadic and hereditary cases showed no difference concerning ataxia severity at baseline. At head-up tilt, non-OH BP falls were detected in nine patients, but not in controls. This finding was significantly more frequent in sporadic cases (p = 0.006) and was detected in five out of seven patients that during follow-up converted to possible/probable MSA-C. Findings at standing test were normal in four out of nine cases with non-OH BP falls at head-up tilt. Conclusions A complete cardiovascular autonomic battery with head-up tilt can detect early signs of BP dysregulation which may be missed at bed-side tests, thus warranting its application in the first line work-up of cerebellar ataxias. Electronic supplementary material The online version of this article (10.1007/s00415-019-09684-4) contains supplementary material, which is available to authorized users.
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11
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The Schellong test: detecting orthostatic blood pressure and heart rate changes in German-speaking countries. Clin Auton Res 2019; 29:363-366. [DOI: 10.1007/s10286-019-00619-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 06/22/2019] [Indexed: 12/12/2022]
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12
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Autonomic function testing in Friedreich's ataxia. J Neurol 2018; 265:2015-2022. [PMID: 29951702 PMCID: PMC6132658 DOI: 10.1007/s00415-018-8946-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/13/2018] [Accepted: 06/16/2018] [Indexed: 12/17/2022]
Abstract
Background Friedreich ataxia (FRDA) is an inherited movement disorder which manifests with progressive gait instability, sensory loss and cardiomyopathy. Peripheral neuropathy is an established feature of FRDA. At neuropathological examination, a depletion of large, myelinated axons is evident, but also unmyelinated fibers are affected which may result in a variety of sensory and autonomic signs and symptoms. Impaired temperature perception, vasomotor disturbances of lower extremities and a high prevalence of urinary symptoms have been documented in FRDA, but data from autonomic function testing in genetically confirmed cases are lacking. Methods Genetically confirmed FRDAs were recruited in an outpatient setting. In a screening visit, general and neurological examination, laboratory testing, ECG and echocardiography were performed. Autonomic functions were evaluated by means of systematic questionnaires (SCOPA-Aut, OHQ), skin sympathetic reflex and cardiovascular autonomic function testing (CAFT). For the latter, a comparison with matched healthy controls was performed. Results 20 patients were recruited and 13 underwent CAFT. Symptoms referred to multiple autonomic domains, particularly bladder function, thermoregulation and sweating were reported. SCOPA-Aut scores were significantly predicted by disease severity. At CAFT, FRDAs did not differ from controls except for increased heart rate at rest and during orthostatic challenge. Two patients had non-neurogenic orthostatic hypotension (14%). Skin sympathetic responses were pathologic in 3 out of 10 patients (of whom 2 aged > 50). Conclusions FRDA patients may experience several autonomic symptoms and overall their burden correlates with disease severity. Nonetheless, clinical testing shows no major involvement of sudomotor and cardiovascular autonomic function.
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Brignole M, Moya A, de Lange FJ, Deharo JC, Elliott PM, Fanciulli A, Fedorowski A, Furlan R, Kenny RA, Martín A, Probst V, Reed MJ, Rice CP, Sutton R, Ungar A, van Dijk JG. 2018 ESC Guidelines for the diagnosis and management of syncope. Eur Heart J 2018; 39:1883-1948. [PMID: 29562304 DOI: 10.1093/eurheartj/ehy037] [Citation(s) in RCA: 942] [Impact Index Per Article: 157.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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14
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Indelicato E, Fanciulli A, Ndayisaba JP, Nachbauer W, Granata R, Wanschitz J, Wagner M, Gizewski ER, Poewe W, Wenning GK, Boesch S. Autonomic function testing in spinocerebellar ataxia type 2. Clin Auton Res 2018; 28:341-346. [PMID: 29435867 PMCID: PMC5995979 DOI: 10.1007/s10286-018-0504-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/16/2018] [Indexed: 12/23/2022]
Abstract
PURPOSE To assess whether autonomic failure belongs to the clinical spectrum of spinocerebellar ataxia type 2 (SCA2), an autosomal dominant genetic disorder showing progressive cerebellar and brainstem dysfunction. METHODS We evaluated cardiovascular autonomic function in 8 patients with SCA2 and 16 age- and gender-matched healthy controls. Other autonomic domains were examined through standardized questionnaires and by testing the skin sympathetic reflex. RESULTS Patients with SCA2 showed normal responses to cardiovascular autonomic function tests, with the exception of lower baroreflex sensitivity upon standing compared to controls. In questionnaires, 7 out of 8 patients reported bladder disturbances, while 3 out of 6 tested patients had no skin sympathetic reflex. CONCLUSIONS We did not observe clinically overt cardiovascular autonomic failure in patients with SCA2. Other autonomic domains (i.e., bladder and sudomotor function) may be affected in the disease.
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Affiliation(s)
- Elisabetta Indelicato
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Alessandra Fanciulli
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
| | - Jean Pierre Ndayisaba
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Wolfgang Nachbauer
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Roberta Granata
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Julia Wanschitz
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Michaela Wagner
- Department of Neuroradiology, Innsbruck Medical University, Innsbruck, Austria.,Neuroimaging Research Core Facility, Innsbruck Medical University, Innsbruck, Austria
| | - Elke R Gizewski
- Department of Neuroradiology, Innsbruck Medical University, Innsbruck, Austria.,Neuroimaging Research Core Facility, Innsbruck Medical University, Innsbruck, Austria
| | - Werner Poewe
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Gregor K Wenning
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
| | - Sylvia Boesch
- Department of Neurology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria
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15
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Autonomic function testing: Compliance and consequences. Auton Neurosci 2017; 208:150-155. [PMID: 29107740 DOI: 10.1016/j.autneu.2017.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Revised: 08/17/2017] [Accepted: 10/13/2017] [Indexed: 11/24/2022]
Abstract
BACKGROUND The deep breathing test (DB) and Valsalva maneuver (VM) are used to detect autonomic dysfunction. The VM induces sympathetically mediated changes in blood pressure (phase II late, phase IV, and recovery time) and both tests induce vagally mediated heart rate changes. There is limited information on effects of key variables, compliance with testing and the effects of non-compliance This study has twin goals of evaluating compliance with standard instructions and the effects of changes in key variables. We also evaluated the effect of position on the VM. MATERIAL AND METHODS Forty healthy males performed DB at air exchange volumes of 50, 80, and 100% of vital lung capacity (VLC). The VM was performed at 40 and 30mmHg expiratory pressure for 15 and 10s in sitting and supine position, respectively. RESULTS Participants performed DB at lower volumes than intended and were not able to maintain 100% VLC for the duration of the test. The DB heart rate response decreased 6.3beats/min per liter below VLC. During the VM, subjects blew at lower pressures than instructed. The VM responses were significantly larger with longer expiration durations, higher expiratory pressures and when performed sitting. Performing the VM at 40mmHg for 10s in supine position increased the odds ratio of experiencing flat-top responses. CONCLUSION The ability of subjects to strictly comply with methodological guidelines significantly improves results. Recording of both test parameters and ensuing results is suggested.
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Macey PM, Rieken NS, Ogren JA, Macey KE, Kumar R, Harper RM. Sex differences in insular cortex gyri responses to a brief static handgrip challenge. Biol Sex Differ 2017; 8:13. [PMID: 28435658 PMCID: PMC5397762 DOI: 10.1186/s13293-017-0135-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 04/11/2017] [Indexed: 01/02/2023] Open
Abstract
Background Cardiovascular disease varies between sexes, suggesting male-female autonomic control differences. Insular gyri help coordinate autonomic regulation and show a sex-dependent response to a sympathetic challenge. Methods We examined sex-related insular gyral responses to a short static handgrip exercise challenge eliciting parasympathetic withdrawal with functional magnetic resonance imaging (fMRI) during four 16-s challenges (80% maximum strength) in 23 healthy females (age; mean ± std 50 ± 8 years) and 40 males (46 ± 9 years). Heart rate (HR) and fMRI signals were compared with repeated measures ANOVA (P < 0.05). Additional analyses were performed with age and age interactions, as well as right-handed only subjects. Results Females showed higher resting HR than males, but smaller percent HR change increases to the challenges. All gyri showed fMRI patterns concurrent with an HR peak and decline to baseline. fMRI signals followed an anterior-posterior organization in both sexes, but lateralization varied by gyri and sex. All subjects showed greater signals in the anterior vs. posterior gyri (females 0.3%, males 0.15%). The middle gyri showed no lateralization in females but left-sided dominance in males (0.1%). The posterior gyri showed greater left than right activation in both sexes. The anterior-most gyri exhibited a prominent sex difference, with females showing a greater right-sided activation (0.2%) vs. males displaying a greater left-sided activation (0.15%). Age and handedness affected a minority of findings but did not alter the overall pattern of results. Conclusions The anterior insula plays a greater role in cardiovascular regulation than posterior areas during a predominantly parasympathetic withdrawal challenge, with opposite lateralization between sexes. In females, the left anterior-most gyrus responded distinctly from other regions than males. Those sex-specific structural and functional brain patterns may contribute over time to variations in cardiovascular disease between the sexes. Electronic supplementary material The online version of this article (doi:10.1186/s13293-017-0135-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Paul M Macey
- UCLA School of Nursing, University of California at Los Angeles, 700 Tiverton Avenue, Los Angeles, CA 90095-1702 USA.,Brain Research Institute, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA
| | - Nicholas S Rieken
- UCLA School of Nursing, University of California at Los Angeles, 700 Tiverton Avenue, Los Angeles, CA 90095-1702 USA
| | - Jennifer A Ogren
- Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA
| | - Katherine E Macey
- UCLA School of Nursing, University of California at Los Angeles, 700 Tiverton Avenue, Los Angeles, CA 90095-1702 USA
| | - Rajesh Kumar
- Brain Research Institute, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA.,Department of Anesthesiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA.,Department of Radiological Sciences, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA
| | - Ronald M Harper
- Brain Research Institute, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA.,Department of Neurobiology, David Geffen School of Medicine at UCLA, University of California at Los Angeles, Los Angeles, CA 90095 USA
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Sarafian D, Miles-Chan JL. The Influence of Gender and Anthropometry on Haemodynamic Status at Rest and in Response to Graded Incremental Head-Up Tilt in Young, Healthy Adults. Front Physiol 2017; 7:656. [PMID: 28101061 PMCID: PMC5209346 DOI: 10.3389/fphys.2016.00656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/14/2016] [Indexed: 01/02/2023] Open
Abstract
The body's ability to rapidly and appropriately regulate blood pressure in response to changing physiological demand is a key feature of a healthy cardiovascular system. Passively tilting the body, thereby changing central blood volume, is a well-recognized and controlled method of evaluating this ability. However, such studies usually involve single tilt angles, or intermittent tilting separated by supine, resting periods; valuable information concerning the adaptive capacity of the regulatory systems involved is therefore currently lacking. Furthermore, despite increasing recognition that men and women differ in the magnitude of their haemodynamic response to such stimuli, little is known about the degree to which gender differences in body composition and anthropometry influence these regulatory pathways, or indeed if these differences are apparent in response to graded, incremental tilting. In the present study we measured, in 23 young, healthy adults (13 men, 10 women), the continuous beat-to-beat haemodynamic response to graded, incremental tilting (0°, 20°, 40°, 60°, and back to 40°) with each tilt angle lasting 16 min. On average, we observed increases in heart rate (+41%), blood pressure (+10%), and total peripheral resistance (+16%) in response to tilting. However, whilst men showed an immediate decrease in cardiac output upon tilting (−8.9%) cardiac output in women did not change significantly from supine values. Interestingly, the decrease in stroke volume observed in women was significantly less than that observed in men (−22 vs. −36%, p < 0.05); although the present study could not determine if this difference was due to gender per se or due to differences in body size (in particular height) between the two gender groups. Such disparities in the magnitude of autonomic response may indicate (in the case of our gradual incremental tilt procedure) a better buffering capacity to progressive changes in central blood volume in women; which warrants further investigation, particularly in light of the well-recognized differences in cardiovascular disease risk between men and women.
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Affiliation(s)
- Delphine Sarafian
- Laboratory of Integrative Cardiovascular and Metabolic Physiology, Division of Physiology, Department of Medicine, University of Fribourg Fribourg, Switzerland
| | - Jennifer L Miles-Chan
- Laboratory of Integrative Cardiovascular and Metabolic Physiology, Division of Physiology, Department of Medicine, University of Fribourg Fribourg, Switzerland
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Macey PM, Rieken NS, Kumar R, Ogren JA, Middlekauff HR, Wu P, Woo MA, Harper RM. Sex Differences in Insular Cortex Gyri Responses to the Valsalva Maneuver. Front Neurol 2016; 7:87. [PMID: 27375549 PMCID: PMC4899449 DOI: 10.3389/fneur.2016.00087] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 05/27/2016] [Indexed: 12/26/2022] Open
Abstract
Sex differences in autonomic regulation may underlie cardiovascular disease variations between females and males. One key autonomic brain region is the insular cortex, which typically consists of five main gyri in each hemisphere, and shows a topographical organization of autonomic function across those gyri. The present study aims to identify possible sex differences in organization of autonomic function in the insula. We studied brain functional magnetic resonance imaging (fMRI) responses to a series of four 18-s Valsalva maneuvers in 22 healthy females (age ± SD: 50.0 ± 7.9 years) and 36 healthy males (45.3 ± 9.2 years). Comparisons of heart rate (HR) and fMRI signals were performed with repeated measures ANOVA (threshold P < 0.05 for all findings). All subjects achieved the target 30 mmHg expiratory pressure for all challenges. Typical HR responses were elicited by the maneuver, including HR increases from ~4 s into the strain period (Phase II) and rapid declines to below baseline 5–10 s, following strain release (Phase IV). Small, but significant, sex differences in HR percent change occurred during the sympathetic-dominant Phase II (female < male) and parasympathetic-dominant Phase IV (female > male, i.e., greater undershoot in males). The insular cortices showed similar patterns in all gyri, with greater signal decreases in males than females. Both sexes exhibited an anterior–posterior topographical organization of insular responses during Phase II, with anterior gyri showing higher responses than more posterior gyri. The exception was the right anterior-most gyrus in females, which had lower responses than the four other right gyri. Responses were lateralized, with right-sided dominance during Phase II in both sexes, except the right anterior-most gyrus in females, which showed lower responses than the left. The findings confirm the anterior and right-sided sympathetic dominance of the insula. Although sex differences were prominent in response magnitude, organization differences between males and females were limited to the right anterior-most gyrus, which showed a lower fMRI response in females vs. males (and vs. other gyri in females). The sex differences suggest a possible differing baseline state of brain physiology or tonic functional activity between females and males, especially in the right anterior-most gyrus.
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Affiliation(s)
- Paul M Macey
- UCLA School of Nursing, University of California at Los Angeles, Los Angeles, CA, USA; Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA
| | - Nicholas S Rieken
- UCLA School of Nursing, University of California at Los Angeles , Los Angeles, CA , USA
| | - Rajesh Kumar
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA; Department of Anesthesiology, University of California at Los Angeles, Los Angeles, CA, USA; Department of Radiological Sciences, University of California at Los Angeles, Los Angeles, CA, USA
| | - Jennifer A Ogren
- Department of Neurobiology, University of California at Los Angeles , Los Angeles, CA , USA
| | - Holly R Middlekauff
- Department of Medicine, Division of Cardiology, David Geffen School of Medicine, University of California at Los Angeles , Los Angeles, CA , USA
| | - Paula Wu
- Department of Neurobiology, University of California at Los Angeles, Los Angeles, CA, USA; Yale School of Medicine, Yale University, New Haven, CT, USA
| | - Mary A Woo
- UCLA School of Nursing, University of California at Los Angeles , Los Angeles, CA , USA
| | - Ronald M Harper
- Brain Research Institute, University of California at Los Angeles, Los Angeles, CA, USA; Department of Neurobiology, University of California at Los Angeles, Los Angeles, CA, USA
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Liao D, Xu Y, Zou R, Wu L, Luo X, Li F, Lin P, Wang X, Xie Z, Wang C. The circadian rhythm of syncopal episodes in patients with neurally mediated syncope. Int J Cardiol 2016; 215:186-92. [PMID: 27128529 DOI: 10.1016/j.ijcard.2016.04.086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 04/11/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To explore the circadian rhythm of neurally mediated syncope (NMS). METHODS 411 patients with NMS (165 males and 246 females aged from 3 to 68years) were included in the study. All subjects underwent head-up tilt test (HUTT) and were carefully asked about the number of syncopal attacks and the periods (morning 06:00am-12:00am, afternoon 12:00am-18:00pm, evening 18:00pm-24:00pm, night 00:00am-06:00am) in which episodes occurred in. RESULTS (1) Syncopal attacks of all patients tended to occur in the morning (P=0.010); there was a statistical difference in the frequency of episodes in four periods through the day in HUTT positive patients (P=0.001), but there was no significant change of episodes within a day in HUTT negative group; and there was no statistical difference in circadian syncope distribution between HUTT negative and HUTT positive group or among patients with different HUTT responses (the orthostatic hypotension (OH) and orthostatic hypertension (OHT) patients were excluded). (2) The syncopal attacks of morning hours occurred more in males than females, but the episodes in the evening occurred more in females than males (P=0.034). (3) The younger the patients were, the chance of syncopal attacks in the morning increased; the older the patients were, they may have more episodes at night (P<0.001). CONCLUSIONS A distinct circadian variation in the frequency of syncopal episodes exists, with a peak in the morning, and there were statistical differences in circadian rhythm of syncopal episodes regarding gender and age.
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Affiliation(s)
- Donglei Liao
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Yi Xu
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Runmei Zou
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Lijia Wu
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Xuemei Luo
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Fang Li
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Ping Lin
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Xiuying Wang
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Zhenwu Xie
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China
| | - Cheng Wang
- Department of Pediatric Cardiovasology, Children's Medical Center, The Second Xiangya Hospital of Central South University, Institute of Pediatrics of Central South University, Changsha 410011, Hunan, China.
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