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Hämmerle P, Aeschbacher S, Schlageter V, Coslovsky M, Hennings E, Krisai P, Coduri F, Blum MR, Rodondi N, Reichlin T, Müller A, Stauber A, Moschovitis G, Rigamonti E, Beer J, Ammann P, Bonati LH, Conen D, Osswald S, Kühne M, Zuern CS. Heart rate variability and stroke or systemic embolism in patients with atrial fibrillation. Heart Rhythm 2024:S1547-5271(24)02570-0. [PMID: 38762133 DOI: 10.1016/j.hrthm.2024.05.028] [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: 10/19/2023] [Revised: 04/22/2024] [Accepted: 05/13/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Stroke remains one of the most serious complications in atrial fibrillation (AF) patients and has been linked to disturbances of the autonomic nervous system. OBJECTIVE The purpose of this study was to test the hypothesis that impaired cardiac autonomic function might be associated with an enhanced stroke risk in AF patients. METHODS A total of 1922 AF patients who were in either sinus rhythm (SR group; n = 1121) or AF (AF group; n = 801) on a 5-minute resting electrocardiographic (ECG) recording were enrolled in the study. Heart rate variability triangular index (HRVI), standard deviation of normal-to-normal intervals, root mean square root of successive differences of normal-to-normal intervals, mean heart rate, 5-minute total power, and power in the high-frequency, low-frequency, and very-low-frequency ranges were calculated. Cox regression models were constructed to examine the association of heart rate variability (HRV) parameters with the composite endpoint of stroke or systemic embolism. RESULTS Mean age was 71 ± 8 years in the SR group and 75 ± 8 years in the AF group. Thirty-seven patients in the SR group (3.4%) and 60 patients in the AF group (8.0%) experienced a stroke or systemic embolism during follow-up of 5 years. In patients with SR, HRVI <15 was the strongest HRV parameter to be associated with stroke or systemic embolism (hazard ratio 3.04; 95% confidence interval 1.3-7.0; P = .009) after adjustment for multiple confounders. In the AF group, no HRV parameter was found to be associated with the composite endpoint. CONCLUSION HRVI measured during SR on a single 5-minute ECG recording is independently associated with stroke or systemic embolism in AF patients. HRV analysis in SR may help to improve risk stratification in AF patients.
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Affiliation(s)
- Peter Hämmerle
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Stefanie Aeschbacher
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Vincent Schlageter
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Michael Coslovsky
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department Clinical Research, University of Basel, University Hospital Basel, Basel, Switzerland
| | - Elisa Hennings
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Philipp Krisai
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Federica Coduri
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Manuel R Blum
- Institute of Primary Health Care (BIHAM), University Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Nicolas Rodondi
- Institute of Primary Health Care (BIHAM), University Bern, Bern, Switzerland; Department of General Internal Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Tobias Reichlin
- Department of Cardiology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Andreas Müller
- Department of Cardiology, Triemli Hospital Zürich, Zürich, Switzerland
| | - Annina Stauber
- Department of Cardiology, Triemli Hospital Zürich, Zürich, Switzerland
| | - Giorgio Moschovitis
- Division of Cardiology, Ente Ospedaliero Cantonale (EOC), Cardiocentro Ticino Institute, Regional Hospital of Lugano, Lugano, Switzerland
| | - Elia Rigamonti
- Division of Cardiology, Ente Ospedaliero Cantonale (EOC), Cardiocentro Ticino Institute, Regional Hospital of Lugano, Lugano, Switzerland
| | - Jürg Beer
- Department of Medicine, Cantonal Hospital of Baden and Molecular Cardiology, University Hospital of Zürich, Zürich, Switzerland
| | - Peter Ammann
- Department of Cardiology, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Leo H Bonati
- Rheinfelden Rehabilitation Clinic, Rheinfelden, Switzerland
| | - David Conen
- Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, Canada
| | - Stefan Osswald
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Michael Kühne
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Christine S Zuern
- Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.
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Qureshi AI, Baskett WI, Lodhi A, Gomez F, Arora N, Chandrasekaran PN, Siddiq F, Gomez CR, Shyu CR. Assessment of Blood Pressure and Heart Rate Related Variables in Acute Stroke Patients Receiving Intravenous Antihypertensive Medication Infusions. Neurocrit Care 2024:10.1007/s12028-024-01974-8. [PMID: 38649651 DOI: 10.1007/s12028-024-01974-8] [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: 06/20/2023] [Accepted: 03/07/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND We performed an analysis of a large intensive care unit electronic database to provide preliminary estimates of various blood pressure parameters in patients with acute stroke receiving intravenous (IV) antihypertensive medication and determine the relationship with in-hospital outcomes. METHODS We identified the relationship between pre-treatment and post-treatment systolic blood pressure (SBP) and heart rate (HR)-related variables and in-hospital mortality and acute kidney injury in patients with acute stroke receiving IV clevidipine, nicardipine, or nitroprusside using data provided in the Medical Information Mart for Intensive Care (MIMIC) IV database. RESULTS A total of 1830 patients were treated with IV clevidipine (n = 64), nicardipine (n = 1623), or nitroprusside (n = 143). The standard deviations [SDs] of pre-treatment SBP (16.3 vs. 13.7, p ≤ 0.001) and post-treatment SBP (15.4 vs. 14.4, p = 0.004) were higher in patients who died compared with those who survived, particularly in patients with intracerebral hemorrhage (ICH). The mean SBP was significantly lower post treatment compared with pre-treatment values for clevidipine (130.7 mm Hg vs. 142.5 mm Hg, p = 0.006), nicardipine (132.8 mm Hg vs. 141.6 mm Hg, p ≤ 0.001), and nitroprusside (126.2 mm Hg vs. 139.6 mm Hg, p ≤ 0.001). There were no differences in mean SDs post treatment compared with pre-treatment values for clevidipine (14.5 vs. 13.5, p = 0.407), nicardipine (14.2 vs. 14.6, p = 0.142), and nitroprusside (14.8 vs. 14.8, p = 0.997). The SDs of pre-treatment and post-treatment SBP were not significantly different in patients with ischemic stroke treated with IV clevidipine, nicardipine, or nitroprusside or for patients with ICH treated with IV clevidipine or nitroprusside. However, patients with ICH treated with IV nicardipine had a significantly higher SD of post-treatment SBP (13.1 vs. 14.2, p = 0.0032). CONCLUSIONS We found that SBP fluctuations were associated with in-hospital mortality in patients with acute stroke. IV antihypertensive medication reduced SBP but did not reduce SBP fluctuations in this observational study. Our results highlight the need for optimizing therapeutic interventions to reduce SBP fluctuations in patients with acute stroke.
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Affiliation(s)
- Adnan I Qureshi
- Zeenat Qureshi Stroke Institute, ZQSI, St. Cloud, MN, USA.
- Department of Neurology, University of Missouri, Columbia, MO, USA.
| | - William I Baskett
- Institute for Data Science and Informatics, University of Missouri, Columbia, MO, USA
| | - Abdullah Lodhi
- Zeenat Qureshi Stroke Institute, ZQSI, St. Cloud, MN, USA
| | - Francisco Gomez
- Department of Neurology, University of Missouri, Columbia, MO, USA
| | - Niraj Arora
- Department of Neurology, University of Missouri, Columbia, MO, USA
| | | | - Farhan Siddiq
- Division of Neurosurgery, University of Missouri, Columbia, MO, USA
| | - Camilo R Gomez
- Department of Neurology, University of Missouri, Columbia, MO, USA
| | - Chi-Ren Shyu
- Institute for Data Science and Informatics, University of Missouri, Columbia, MO, USA
- Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, MO, USA
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Cha KH, Kang NY, Huh S, Ko SH, Shin YI, Min JH. The Effects of Autonomic Dysfunction on Functional Outcomes in Patients with Acute Stroke. Brain Sci 2023; 13:1694. [PMID: 38137142 PMCID: PMC10741939 DOI: 10.3390/brainsci13121694] [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: 11/15/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Autonomic dysfunction is a common complication of acute stroke, which impairs functional outcomes and increases mortality. There is a lack of well-established knowledge regarding the influence of autonomic dysfunction in patients with acute stroke. This study aims to investigate the impact of the severity of autonomic dysfunction on functional outcomes in patients with acute stroke. A retrospective analysis was conducted at a single center, involving 22 patients diagnosed with acute stroke. The severity of autonomic dysfunction was evaluated based on the Composite Autonomic Scoring Scale (CASS). The modified Barthel Index, Berg Balance Scale, Functional Ambulatory Category, and modified Rankin Scale were designated as functional outcome measures. The impact of the severity of autonomic dysfunction on functional outcomes was analyzed using one-way analysis of covariance (ANCOVA). A statistically significant difference was observed between the initial and follow-up functional outcomes based on the severity of autonomic dysfunction. This study presents evidence that the severity of autonomic dysfunction influences functional prognosis in patients with acute stroke. The findings will serve as additional considerations for the rehabilitation of patients with acute stroke.
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Affiliation(s)
- Kyoung Hyeon Cha
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
| | - Nae Yoon Kang
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
| | - Sungchul Huh
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea
| | - Sung-Hwa Ko
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Yong-Il Shin
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Ji Hong Min
- Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea; (K.H.C.); (N.Y.K.); (S.H.); (S.-H.K.); (Y.-I.S.)
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20 Geumo-ro, Mulgeum-eup, Yangsan 50612, Republic of Korea
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Doskas T, Dardiotis E, Vavougios GD, Ntoskas KT, Sionidou P, Vadikolias K. Stroke risk in multiple sclerosis: a critical appraisal of the literature. Int J Neurosci 2023; 133:1132-1152. [PMID: 35369835 DOI: 10.1080/00207454.2022.2056459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 03/14/2022] [Indexed: 10/18/2022]
Abstract
Observational studies suggest that the occurrence of stroke on multiple sclerosis (MS) patients is higher compared to the general population. MS is a heterogeneous disease that involves an interplay of genetic, environmental and immune factors. The occurrence of stroke is subject to a wide range of both modifiable and non-modifiable, short- and long-term risk factors. Both MS and stroke share common risk factors. The immune mechanisms that underlie stroke are similar to neurodegenerative diseases and are attributed to neuroinflammation. The inflammation in autoimmune diseases may, therefore, predispose to an increased risk for stroke or potentiate the effect of conventional stroke risk factors. There are, however, additional determinants that contribute to a higher risk and incidence of stroke in MS. Due to the challenges that are associated with their differential diagnosis, the objective is to present an overview of the factors that may contribute to increased susceptibility or occurrence of stroke in MSpatients by performing a review of the available to date literature. As both MS and stroke can individually detrimentally affect the quality of life of afflicted patients, the identification of factors that contribute to an increased risk for stroke in MS is crucial for the prompt implementation of preventative therapeutic measures to limit the additive burden that stroke imposes.
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Affiliation(s)
- Triantafyllos Doskas
- Department of Neurology, Athens Naval Hospital, Athens, Greece
- Department of Neurology, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Efthimios Dardiotis
- Department of Neurology, Laboratory of Neurogenetics, University Hospital of Larissa, Larissa, Greece
- Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece
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5
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Rolls A. Immunoception: the insular cortex perspective. Cell Mol Immunol 2023; 20:1270-1276. [PMID: 37386172 PMCID: PMC10616063 DOI: 10.1038/s41423-023-01051-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 05/29/2023] [Indexed: 07/01/2023] Open
Abstract
To define the systemic neuroimmune interactions in health and disease, we recently suggested immunoception as a term that refers to the existence of bidirectional functional loops between the brain and the immune system. This concept suggests that the brain constantly monitors changes in immune activity and, in turn, can regulate the immune system to generate a physiologically synchronized response. Therefore, the brain has to represent information regarding the state of the immune system, which can occure in multiple ways. One such representation is an immunengram, a trace that is partially stored by neurons and partially by the local tissue. This review will discuss our current understanding of immunoception and immunengrams, focusing on their manifestation in a specific brain region, the insular cortex (IC).
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Affiliation(s)
- Asya Rolls
- Department of Immunology, Department of Neuroscience, Technion, Israel Institute of Technology, Haifa, Israel.
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6
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Scharp D, Harkins SE, Topaz M. Comorbidities of community-dwelling older adults with urinary incontinence: A scoping review. Geriatr Nurs 2023; 53:280-294. [PMID: 37598432 PMCID: PMC10529939 DOI: 10.1016/j.gerinurse.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND Identifying comorbidities is a critical first step to building clinical phenotypes to improve assessment, management, and outcomes. OBJECTIVES 1) Identify relevant comorbidities of community-dwelling older adults with urinary incontinence, 2) provide insights about relationships between conditions. METHODS PubMed, Cumulative Index of Nursing and Allied Health Literature, and Embase were searched. Eligible studies had quantitative designs that analyzed urinary incontinence as the exposure or outcome variable. Critical appraisal was performed using the Joanna Briggs Institute Critical Appraisal Checklists. RESULTS Ten studies were included. Most studies had methodological weaknesses in the measurement of conditions. Comorbidities affecting the neurologic, cardiovascular, psychologic, respiratory, endocrine, genitourinary, and musculoskeletal systems were found to be associated with urinary incontinence. CONCLUSION Existing literature suggests that comorbidities and urinary incontinence are interrelated. Further research is needed to examine symptoms, shared mechanisms, and directionality of relationships to generate clinical phenotypes, evidence-based holistic care guidelines, and improve outcomes.
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Affiliation(s)
- Danielle Scharp
- Columbia University School of Nursing, 560 West 168(th) Street, New York, NY 10032, United States.
| | - Sarah E Harkins
- Columbia University School of Nursing, 560 West 168(th) Street, New York, NY 10032, United States.
| | - Maxim Topaz
- Columbia University School of Nursing, 560 West 168(th) Street, New York, NY 10032, United States.
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Abstract
Gastrointestinal (GI) complications are seen in over 50% of ischemic stroke survivors; the most common complications are dysphagia, constipation, and GI bleeding. The bidirectional relationship of the gut-brain axis and stroke has recently gained traction, wherein stroke contributes to gut dysbiosis (alterations in the normal host intestinal microbiome) and gut dysbiosis perpetuates poor functional neurologic outcomes in stroke. It is postulated that the propagation of proinflammatory cells and gut metabolites (including trimethylamine N-oxide and short-chain fatty acids) from the GI tract to the central nervous system play a central role in gut-brain axis dysfunction. In this review, we discuss the known GI complications in acute ischemic stroke, our current knowledge from experimental stroke models for gut-brain axis dysfunction in stroke, and emerging therapeutics that target the gut-brain axis.
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Affiliation(s)
- Heather Y F Yong
- Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Aravind Ganesh
- Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Carlos Camara-Lemarroy
- Department of Clinical Neurosciences, University of Calgary, Calgary, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Canada
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8
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Tuttolomondo A. Immunoinflammatory Background of Neuronal Damage in Stroke. Int J Mol Sci 2023; 24:ijms24108619. [PMID: 37239963 DOI: 10.3390/ijms24108619] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Ischemic stroke is caused by a reduction in blood flow to the brain and is a major cause of mortality and disability worldwide [...].
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Affiliation(s)
- Antonino Tuttolomondo
- Internal Medicine and Stroke Care Ward, Department of Health Promotion, Maternal and Infant Care, Internal Medicine and Medical Specialties "G. 6 D'Alessandro", University of Palermo, Piazza delle Cliniche n.2, 90127 Palermo, Italy
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Matsumoto T, Yoshimatsu R, Osaki M, Miyatake K, Kitaoka N, Baba Y, Yamagami T. Percutaneous splanchnic nerve neurolysis analgesic efficacy and safety for cancer-related pain: a systematic review and meta-analysis. Support Care Cancer 2023; 31:324. [PMID: 37148332 DOI: 10.1007/s00520-023-07746-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 04/11/2023] [Indexed: 05/08/2023]
Abstract
PURPOSE To perform a systematic review and meta-analysis of publications to evaluate the analgesic efficacy and safety of percutaneous splanchnic nerve neurolysis (SNN) for cancer-related pain. METHODS We searched PubMed, Cochrane Library, and Ichushi-Web for English or Japanese articles published up to July 2022 and reporting patients who underwent percutaneous SNN for cancer-related pain. The outcome measures assessed in the systematic review and meta-analysis were the pain measurement scales and morphine equivalents daily dose (MEDD) before and after the intervention and the rate of complications. RESULTS Pooled pain measurement scores at pre-intervention, 1-2 weeks, and at 1, 2, 3, and 6 months post-intervention were 6.65 (95% confidence interval [CI], 5.77-7.67, I2 = 97%), 2.79 (95% CI, 2.00-3.88, I2 = 88%), 2.82 (95% CI, 2.49-3.20, I2 = 55%), 2.86 (95% CI, 2.64-3.10, I2 = 0%), 2.99 (95% CI, 2.56-3.46, I2 = 82%), and 3.09 (95% CI, 1.44-6.65, I2 = 70%), respectively. Mean MEDD was described in 8 of the 11 included articles. In all 8 articles, MEDD decreased up to 3 months post-intervention. The pooled minor complication rates for diarrhea and hypotension were 28% (95% CI, 13-49%, I2 = 85%) and 31% (95% CI, 16-51%, I2 = 80%), respectively. The pooled major complication rate was 2% (95% CI, 1-2%, I2 = 0%). CONCLUSIONS Analysis indicates that percutaneous SNN for cancer-related pain can be performed safely with sustained reduction of pain measurement scales while reducing the administration of opioids.
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Affiliation(s)
- Tomohiro Matsumoto
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Oko-Cho, Kohasu, Nankoku, Kochi, 783-8505, Japan.
| | - Rika Yoshimatsu
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Oko-Cho, Kohasu, Nankoku, Kochi, 783-8505, Japan
| | - Marina Osaki
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Oko-Cho, Kohasu, Nankoku, Kochi, 783-8505, Japan
- Department of Radiology, Kochi Health Sciences Center, 2125-1 Ike, Kochi, 781-0111, Japan
| | - Kana Miyatake
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Oko-Cho, Kohasu, Nankoku, Kochi, 783-8505, Japan
| | - Noriko Kitaoka
- Department of Palliative Medicine, Kochi Medical School, Kochi University, Kohasu, Nankoku, Kochi, Oko-Cho, 783-8505, Japan
| | - Yasutaka Baba
- Department of Diagnostic Radiology, International Medical Centre, Saitama Medical University, 1397-1 Yamane, Hidaka, 350-1298, Japan
| | - Takuji Yamagami
- Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Oko-Cho, Kohasu, Nankoku, Kochi, 783-8505, Japan
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Aftyka J, Staszewski J, Dębiec A, Pogoda-Wesołowska A, Żebrowski J. Heart rate variability as a predictor of stroke course, functional outcome, and medical complications: A systematic review. Front Physiol 2023; 14:1115164. [PMID: 36846317 PMCID: PMC9947292 DOI: 10.3389/fphys.2023.1115164] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 01/30/2023] [Indexed: 02/11/2023] Open
Abstract
Background: Heart rate variability (HRV) is a non-invasive marker of autonomic nervous system function that is based on the analysis of length differences between subsequent RR intervals of the electrocardiogram. The aim of this systematic review was to assess the current knowledge gap in the utility of HRV parameters and their value as predictors of the acute stroke course. Methods: A systematic review was performed in accordance with the PRISMA guidelines. Relevant articles published between 1 January 2016 and 1 November 2022 available in the PubMed, Web of Science, Scopus, and Cochrane Library databases were obtained using a systematic search strategy. The following keywords were used to screen the publications: "heart rate variability" AND/OR "HRV" AND "stroke." The eligibility criteria that clearly identified and described outcomes and outlined restrictions on HRV measurement were pre-established by the authors. Articles assessing the relationship between HRV measured in the acute phase of stroke and at least one stroke outcome were considered. The observation period did not exceed 12 months. Studies that included patients with medical conditions influencing HRV with no established stroke etiology and non-human subjects were excluded from the analysis. To minimize the risk of bias, disagreements throughout the search and analysis were resolved by two independent supervisors. Results: Of the 1,305 records obtained from the systematic search based on keywords, 36 were included in the final review. These publications provided insight into the usability of linear and non-linear HRV analysis in predicting the course, complications, and mortality of stroke. Furthermore, some modern techniques, such as HRV biofeedback, for the improvement of cognition performance after a stroke are discussed. Discussion: The present study showed that HRV could be considered a promising biomarker of a stroke outcome and its complications. However, further research is needed to establish a methodology for appropriate quantification and interpretation of HRV-derived parameters.
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Affiliation(s)
- Joanna Aftyka
- Faculty of Physics, Warsaw University of Technology, Warsaw, Poland,*Correspondence: Joanna Aftyka,
| | - Jacek Staszewski
- Clinic of Neurology, Military Institute of Medicine, Warsaw, Poland
| | | | | | - Jan Żebrowski
- Faculty of Physics, Warsaw University of Technology, Warsaw, Poland
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Montellano FA, Kluter EJ, Rücker V, Ungethüm K, Mackenrodt D, Wiedmann S, Dege T, Quilitzsch A, Morbach C, Frantz S, Störk S, Haeusler KG, Kleinschnitz C, Heuschmann PU. Cardiac dysfunction and high-sensitive C-reactive protein are associated with troponin T elevation in ischemic stroke: insights from the SICFAIL study. BMC Neurol 2022; 22:511. [PMID: 36585640 PMCID: PMC9804953 DOI: 10.1186/s12883-022-03017-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 12/05/2022] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Troponin elevation is common in ischemic stroke (IS) patients. The pathomechanisms involved are incompletely understood and comprise coronary and non-coronary causes, e.g. autonomic dysfunction. We investigated determinants of troponin elevation in acute IS patients including markers of autonomic dysfunction, assessed by heart rate variability (HRV) time domain variables. METHODS Data were collected within the Stroke Induced Cardiac FAILure (SICFAIL) cohort study. IS patients admitted to the Department of Neurology, Würzburg University Hospital, underwent baseline investigation including cardiac history, physical examination, echocardiography, and blood sampling. Four HRV time domain variables were calculated in patients undergoing electrocardiographic Holter monitoring. Multivariable logistic regression with corresponding odds ratios (OR) and 95% confidence intervals (CI) was used to investigate the determinants of high-sensitive troponin T (hs-TnT) levels ≥14 ng/L. RESULTS We report results from 543 IS patients recruited between 01/2014-02/2017. Of those, 203 (37%) had hs-TnT ≥14 ng/L, which was independently associated with older age (OR per year 1.05; 95% CI 1.02-1.08), male sex (OR 2.65; 95% CI 1.54-4.58), decreasing estimated glomerular filtration rate (OR per 10 mL/min/1.73 m2 0.71; 95% CI 0.61-0.84), systolic dysfunction (OR 2.79; 95% CI 1.22-6.37), diastolic dysfunction (OR 2.29; 95% CI 1.29-4.02), atrial fibrillation (OR 2.30; 95% CI 1.25-4.23), and increasing levels of C-reactive protein (OR 1.48 per log unit; 95% CI 1.22-1.79). We did not identify an independent association of troponin elevation with the investigated HRV variables. CONCLUSION Cardiac dysfunction and elevated C-reactive protein, but not a reduced HRV as surrogate of autonomic dysfunction, were associated with increased hs-TnT levels in IS patients independent of established cardiovascular risk factors. Registration-URL: https://www.drks.de/drks_web/; Unique identifier: DRKS00011615.
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Affiliation(s)
- Felipe A. Montellano
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Interdisciplinary Center for Clinical Research, University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Department of Neurology, University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Elisabeth J. Kluter
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Viktoria Rücker
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Kathrin Ungethüm
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Daniel Mackenrodt
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Department of Neurology, University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany
| | - Silke Wiedmann
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Tassilo Dege
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Anika Quilitzsch
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany
| | - Caroline Morbach
- grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Frantz
- grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Stefan Störk
- grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Karl Georg Haeusler
- grid.411760.50000 0001 1378 7891Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Christoph Kleinschnitz
- grid.410718.b0000 0001 0262 7331Department of Neurology and Center for Translational and Behavioral Neurosciences (C-TNBS), University Hospital Essen, Essen, Germany
| | - Peter U. Heuschmann
- grid.8379.50000 0001 1958 8658Institute of Clinical Epidemiology and Biometry, University of Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Comprehensive Heart Failure Center, University and University Hospital Würzburg, Würzburg, Germany ,grid.411760.50000 0001 1378 7891Clinical Trial Center, University Hospital Würzburg, Würzburg, Germany
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12
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Sun Y, Lin Y, Wang J, Xu Z, Bao W, Chen Z, Yang X. Risk factors for constipation in patients with acute and subacute ischemic stroke: A retrospective cohort study. J Clin Neurosci 2022; 106:91-95. [DOI: 10.1016/j.jocn.2022.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
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13
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Wu F, Liu Z, Zhou L, Ye D, Zhu Y, Huang K, Weng Y, Xiong X, Zhan R, Shen J. Systemic immune responses after ischemic stroke: From the center to the periphery. Front Immunol 2022; 13:911661. [PMID: 36211352 PMCID: PMC9533176 DOI: 10.3389/fimmu.2022.911661] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/18/2022] [Indexed: 12/01/2022] Open
Abstract
Ischemic stroke is a leading cause of disability and death. It imposes a heavy economic burden on individuals, families and society. The mortality rate of ischemic stroke has decreased with the help of thrombolytic drug therapy and intravascular intervention. However, the nerve damage caused by ischemia-reperfusion is long-lasting and followed by multiple organ dysfunction. In this process, the immune responses manifested by systemic inflammatory responses play an important role. It begins with neuroinflammation following ischemic stroke. The large number of inflammatory cells released after activation of immune cells in the lesion area, along with the deactivated neuroendocrine and autonomic nervous systems, link the center with the periphery. With the activation of systemic immunity and the emergence of immunosuppression, peripheral organs become the second “battlefield” of the immune response after ischemic stroke and gradually become dysfunctional and lead to an adverse prognosis. The purpose of this review was to describe the systemic immune responses after ischemic stroke. We hope to provide new ideas for future research and clinical treatments to improve patient outcomes and quality of life.
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Affiliation(s)
- Fan Wu
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Zongchi Liu
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lihui Zhou
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Di Ye
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yu Zhu
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Kaiyuan Huang
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yuxiang Weng
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaoxing Xiong
- Department of Clinical Laboratory, Renmin Hospital, Faculty of Medical Sciences, Wuhan University, Wuhan, China
| | - Renya Zhan
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Jian Shen, ; Renya Zhan,
| | - Jian Shen
- Department of Neurosurgery, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Jian Shen, ; Renya Zhan,
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14
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Liu P, Hao J, Zhang Y, Wang L, Liu C, Wang J, Feng J, Zhang Y, Hou H, Zhang L. Acute Ischemic Stroke Comorbid with Type 2 Diabetes: Long-Term Prognosis Determinants in a 36-Month Prospective Study for Personalized Medicine. OMICS : A JOURNAL OF INTEGRATIVE BIOLOGY 2022; 26:451-460. [PMID: 35917518 DOI: 10.1089/omi.2022.0071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ischemic stroke (IS) is often comorbid with type 2 diabetes mellitus (T2DM) wherein the determinants of long-term outcomes, beyond the acute stroke phase, are not adequately known. This study identified the determinants of long-term outcomes for diabetic IS patients through a prospective nested case-control study in 624 patients treated with conservative measures (38.60% females, mean age: 63.85 years). After 36-month follow-up, 117 (18.8%) patients with poor outcome were enrolled in the case group. The poor outcome was defined with a modified Rankin Scale (mRS) score ≥3. Meanwhile, 374 (59.9%) patients with good outcome, defined as (mRS score <3), were included in the control group. Patients who died (n = 32) or lost to follow-up (n = 101) were excluded in analysis. Poor prognostic outcome was positively associated with (1) the pulse rate at admission, (2) diastolic blood pressure (DBP), and (3) fasting blood glucose (FBG) during follow-up, whereas physical activity and lipid-lowering treatment during follow-up were negatively associated. Importantly, a forecasting model with these indicators distinguished the patients with good versus poor outcomes with 70.1% sensitivity and 73.5% specificity. Health care professionals and laboratory medicine scholars may want to monitor an increase in DBP and FBG during follow-up, as well as physical activity and lipid-lowering treatment, in relationship to the prognosis of IS with comorbid T2DM after conservative therapies. The proposed predictive model for personalized/precision medicine requires field testing in independent studies, and might help risk stratification with theranostic tests for patients with acute IS who also have a diagnosis of T2DM.
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Affiliation(s)
- Pengcheng Liu
- Department of Epidemiology, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Jiheng Hao
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Yichun Zhang
- Department of Epidemiology, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Lu Wang
- Department of Epidemiology, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Chao Liu
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Jiyue Wang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Jingjun Feng
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Yanbo Zhang
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
| | - Haifeng Hou
- Department of Epidemiology, School of Public Health, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian, China
| | - Liyong Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
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15
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Castro P, Freitas J, Azevedo E, Tan CO. Cerebrovascular regulation in patients with vasovagal syncope and autonomic failure due to familial amyloidotic polyneuropathy. Auton Neurosci 2022; 242:103010. [PMID: 35907336 DOI: 10.1016/j.autneu.2022.103010] [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: 08/27/2021] [Revised: 05/10/2022] [Accepted: 07/03/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION While there is strong evidence for autonomic involvement in cerebrovascular function acutely, long-term role of autonomic nervous system in cerebrovascular function has been controversial. We assessed autoregulation in 10 healthy individuals, nine patients with vasovagal syncope (VVS), and nine with Familial Amyloidotic Polyneuropathy (FAP), in response to head-up tilt test (HUTT). METHODS Arterial blood pressure heart rate, cardiac output, and bilateral cerebral blood flow velocity (CBFV) at the M1 segment of middle cerebral artery (transcranial Doppler ultrasound) were recorded during supine rest and 70° HUTT. Autoregulation was quantified using a validated nonlinear and nonparametric approach based on projection pursuit regression. Plasma adrenaline and noradrenaline were also measured at rest and during HUTT. RESULTS During supine rest and HUTT, plasma noradrenaline content was lower in FAP patients. During HUTT, VVS patients had a hyperadrenergic status; CBFV decreased in all groups, which was greater in FAP patients (p < 0.01). Healthy controls responded to HUTT with a reduction in CBFV responses to increases (p = 0.01) and decreases (p < 0.01) in arterial pressure without any change in the range or effectiveness of autoregulation. VVS patients responded to HUTT with a reduction in falling (p = 0.02), but not rising slope (p = 0.40). Autoregulatory range (p < 0.01) and effectiveness increased (p = 0.09), consistent with the rapid increase in levels of catecholamines. In FAP patients, the level of increase in range of autoregulation was significantly related to the magnitude of increase in plasma noradrenaline in response to HUTT (R2 = 0.26, p = 0.05). CONCLUSION Autonomic dysfunction affects the cerebral autoregulatory response orthostatic to challenge.
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Affiliation(s)
- Pedro Castro
- Department of Neurology, Centro Hospitalar Universitário São João, Cardiovascular R&D Unit, Faculty of Medicine of University of Porto, Porto, Portugal.
| | - João Freitas
- Autonomic Unit, São João Hospital Center, Faculty of Medicine of University of Porto, Porto, Portugal
| | - Elsa Azevedo
- Department of Neurology, Centro Hospitalar Universitário São João, Cardiovascular R&D Unit, Faculty of Medicine of University of Porto, Porto, Portugal.
| | - Can Ozan Tan
- Cerebrovascular Research Laboratory and Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital, Boston, MA, US.
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16
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Zhu L, Huang L, Le A, Wang TJ, Zhang J, Chen X, Wang J, Wang J, Jiang C. Interactions between the Autonomic Nervous System and the Immune System after Stroke. Compr Physiol 2022; 12:3665-3704. [PMID: 35766834 DOI: 10.1002/cphy.c210047] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Acute stroke is one of the leading causes of morbidity and mortality worldwide. Stroke-induced immune-inflammatory response occurs in the perilesion areas and the periphery. Although stroke-induced immunosuppression may alleviate brain injury, it hinders brain repair as the immune-inflammatory response plays a bidirectional role after acute stroke. Furthermore, suppression of the systemic immune-inflammatory response increases the risk of life-threatening systemic bacterial infections after acute stroke. Therefore, it is essential to explore the mechanisms that underlie the stroke-induced immune-inflammatory response. Autonomic nervous system (ANS) activation is critical for regulating the local and systemic immune-inflammatory responses and may influence the prognosis of acute stroke. We review the changes in the sympathetic and parasympathetic nervous systems and their influence on the immune-inflammatory response after stroke. Importantly, this article summarizes the mechanisms on how ANS regulates the immune-inflammatory response through neurotransmitters and their receptors in immunocytes and immune organs after stroke. To facilitate translational research, we also discuss the promising therapeutic approaches modulating the activation of the ANS or the immune-inflammatory response to promote neurologic recovery after stroke. © 2022 American Physiological Society. Compr Physiol 12:3665-3704, 2022.
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Affiliation(s)
- Li Zhu
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Leo Huang
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Anh Le
- Washington University in St. Louis, Saint Louis, Missouri, USA
| | - Tom J Wang
- Winston Churchill High School, Potomac, Maryland, USA
| | - Jiewen Zhang
- Department of Neurology, People's Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Xuemei Chen
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Junmin Wang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Jian Wang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China.,Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, PR China
| | - Chao Jiang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
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17
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Ghesquière L, Ternynck C, Sharma D, Hamoud Y, Vanspranghels R, Storme L, Houfflin-Debarge V, De Jonckheere J, Garabedian C. Heart rate markers for prediction of fetal acidosis in an experimental study on fetal sheep. Sci Rep 2022; 12:10615. [PMID: 35739219 PMCID: PMC9226053 DOI: 10.1038/s41598-022-14727-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 06/10/2022] [Indexed: 11/09/2022] Open
Abstract
To overcome the difficulties in interpreting fetal heart rate (FHR), several tools based on the autonomic nervous system and heart rate variability (HRV) have been developed. The objective of this study was to use FHR and HRV parameters for the prediction of fetal hypoxia. It was an experimental study in the instrumented fetal sheep. Repeated umbilical cord occlusions were performed to achieve severe acidosis. Hemodynamic parameters, ECG, and blood gases were analyzed. The variables used were heart rate baseline, HRV analysis (RMSSD, SDNN, LF, HF, HFnu, Fetal Stress Index (FSI), …), and morphological analysis of decelerations. The gold standard used to classify hypoxia was the fetal arterial pH (pH < 7.10). Different multivariable statistical methods (logistic regression and decision trees) were applied for the detection of acidosis. 21 lambs were instrumented. A total of 130 pairs of FHR/fetal pH analysis were obtained of which 29 in the acidosis group and 101 in the non-acidosis group. After logistic regression model with bootstrap resampling and stepwise backward selection, only one variable was selected, FSI. The AUC of FSI alone in this model was 0.81 with a sensitivity of 0.66, specificity of 0.88, PPV of 0.61, and NPV of 0.90 considering a threshold of 68. Decision trees with CHAID and CART algorithms showed a sensitivity of 0.48 and 0.59, respectively, and a specificity of 0.94 for both. All employed methods identified HRV variables as the most predictive of acidosis. The primary variables selected automatically were those from the HRV. Supporting the use of FHRV measures for the screening of fetal acidosis during labour is interesting.
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Affiliation(s)
- Louise Ghesquière
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France. .,Department of Obstetrics, CHU Lille, 59000, Lille, France. .,Department of Obstetrics, CHU Lille, Avenue Eugène Avinée, 59037, Lille Cedex, France.
| | - C Ternynck
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Biostatistics, CHU Lille, 59000, Lille, France
| | - D Sharma
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Pediatric Surgery, CHU Lille, 59000, Lille, France
| | - Y Hamoud
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Obstetrics, CHU Lille, 59000, Lille, France
| | - R Vanspranghels
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Obstetrics, CHU Lille, 59000, Lille, France
| | - L Storme
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Neonatology, CHU Lille, 59000, Lille, France
| | - V Houfflin-Debarge
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Obstetrics, CHU Lille, 59000, Lille, France
| | - J De Jonckheere
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,CHU Lille, CIC-IT 1403, 59000, Lille, France
| | - C Garabedian
- Univ. Lille, CHU Lille, ULR 2694-METRICS-Evaluation des technologies de santé et des pratiques médicales, 59000, Lille, France.,Department of Obstetrics, CHU Lille, 59000, Lille, France
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18
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Sympathovagal imbalance in early ischemic stroke is linked to impaired cerebral autoregulation and increased infarct volumes. Auton Neurosci 2022; 241:102986. [DOI: 10.1016/j.autneu.2022.102986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 03/23/2022] [Accepted: 04/28/2022] [Indexed: 11/24/2022]
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19
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Yang A, Liu B, Inoue T. Role of autonomic system imbalance in neurogenic pulmonary oedema. Eur J Neurosci 2022; 55:1645-1657. [PMID: 35277906 DOI: 10.1111/ejn.15648] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 02/09/2022] [Accepted: 03/04/2022] [Indexed: 02/05/2023]
Abstract
Neurogenic pulmonary oedema (NPE) is a life-threatening complication that develops rapidly and dramatically after an injury to the central nervous system (CNS). The autonomic system imbalance produced by severe brain damage may play an important role in the development of NPE. Activation of the sympathetic nervous system and inhibition of the vagus nerve system are essential prerequisites for autonomic system imbalance. The more severe the damage, the more pronounced the phenomenon. Sympathetic hyperactivity is associated with increased release of catecholamines from peripheral sympathetic nerve endings, which can cause dramatic changes in haemodynamics and cause pulmonary oedema. On the other hand, the abnormal inflammatory response caused by vagus nerve inhibition may also play an important role in the pathogenesis of NPE. The perspective of autonomic system imbalance seems to perfectly integrate the existing pathogenesis of NPE and can explain the entire development progression of NPE.
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Affiliation(s)
- Aobing Yang
- Department of Neurosurgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Bin Liu
- Department of Neurosurgery, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Tsuyoshi Inoue
- Department of Physiology of Visceral Function and Body Fluid, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
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20
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Lichlyter DA, Krumm ZA, Golde TA, Doré S. Role of CRF and the hypothalamic-pituitary-adrenal axis in stroke: revisiting temporal considerations and targeting a new generation of therapeutics. FEBS J 2022; 290:1986-2010. [PMID: 35108458 DOI: 10.1111/febs.16380] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 12/10/2021] [Accepted: 01/31/2022] [Indexed: 12/13/2022]
Abstract
Ischaemic neurovascular stroke represents a leading cause of death in the developed world. Preclinical and human epidemiological evidence implicates the corticotropin-releasing factor (CRF) family of neuropeptides as mediators of acute neurovascular injury pathology. Preclinical investigations of the role of CRF, CRF receptors and CRF-dependent activation of the hypothalamic-pituitary-adrenal (HPA) axis have pointed toward a tissue-specific and temporal relationship between activation of these pathways and physiological outcomes. Based on the literature, the major phases of ischaemic stroke aetiology may be separated into an acute phase in which CRF and anti-inflammatory stress signalling are beneficial and a chronic phase in which these contribute to neural degeneration, toxicity and apoptotic signalling. Significant gaps in knowledge remain regarding the pathway, temporality and systemic impact of CRF signalling and stress biology in neurovascular injury progression. Heterogeneity among experimental designs poses a challenge to defining the apparent reciprocal relationship between neurological injury and stress metabolism. Despite these challenges, it is our opinion that the elucidated temporality may be best matched with an antibody against CRF with a half-life of days to weeks as opposed to minutes to hours as with small-molecule CRF receptor antagonists. This state-of-the-art review will take a multipronged approach to explore the expected potential benefit of a CRF antibody by modulating CRF and corticotropin-releasing factor receptor 1 signalling, glucocorticoids and autonomic nervous system activity. Additionally, this review compares the modulation of CRF and HPA axis activity in neuropsychiatric diseases and their counterpart outcomes post-stroke and assess lessons learned from antibody therapies in neurodegenerative diseases.
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Affiliation(s)
- Daniel A Lichlyter
- Department of Anesthesiology, University of Florida College of Medicine, Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA
| | - Zachary A Krumm
- Department of Neuroscience, University of Florida College of Medicine, Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA
| | - Todd A Golde
- Department of Neuroscience, University of Florida College of Medicine, Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA
| | - Sylvain Doré
- Department of Anesthesiology, University of Florida College of Medicine, Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA.,Department of Neuroscience, University of Florida College of Medicine, Center for Translational Research in Neurodegenerative Disease, University of Florida, Gainesville, FL, USA.,Departments of Neurology, Psychiatry, Pharmaceutics, McKnight Brain Institute, University of Florida College of Medicine, Gainesville, FL, USA
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21
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Changes of Electrocardiogram and Myocardial Enzymes in Patients with Intracerebral Hemorrhage. DISEASE MARKERS 2022; 2022:9309444. [PMID: 35432629 PMCID: PMC9007683 DOI: 10.1155/2022/9309444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/25/2022]
Abstract
Purpose Cardiac complications are common in patients with spontaneous intracerebral hemorrhage (ICH). The present study is aimed at observing the incidence of cardiac complications after ICH, so as at improving the understanding of the relationship between cardiac complications and ICH. Methods This is a retrospective study on analyzing electrocardiogram (ECG) and serum myocardial enzyme of 208 patients with ICH admitted to a tertiary hospital from 2018 to 2019. For each patient, demographics, medical history, clinical presentation, ECG, serum myocardial enzyme, and head CT on admission were reviewed. Mortality was noted. Results Among the 208 patients, 145 (69.71%) had one or more ECG abnormalities. The top three abnormalities were corrected QT interval (QTc) prolongation 52 (25%), ST depression 48 (23.08%), and T wave inversion 38 (18.27%). One hundred and thirty-nine patients (66.83%) had increased serum levels of at least one kind of myocardial enzyme, which were high-sensitive cardiac troponin T (hs-cTnT) 79 (37.98%), lactic dehydrogenase (LDH) 80 (38.46%), creatine kinase (CK) 57 (27.40%), and creatine kinase-myocardial subfraction (CKMB) 57 (27.40%). The logistic regression analysis showed the following: secondary intraventricular hemorrhage (SIVH) (odds ratio (OR) 5.32; 95% confidence interval (CI) 2.55–11.08; p < 0.001) and hematoma volume > 30 ml (OR 3.81; 95% CI 1.86–7.81; p < 0.001) were independent predictive factors of QTc prolongation; thalamus location (OR 5.79; 95% CI 1.94–17.28; p < 0.05), hematoma volume > 30 ml (OR 24.187; 95% CI 3.14-186.33; p < 0.05), insular involvement (OR 19.08; 95% CI 5.77-63.07; p < 0.001), and SIVH (OR 2.62; 95% CI 1.69-5.86; p < 0.05) were independent predictive factors of ST depression; insular involvement (OR 2.90; 95% CI 1.12–7.50; p < 0.05) and hematoma volume > 30 ml (OR 1.98; 95% CI 1.06–3.70; p < 0.05) were independent predictive factors of increase of CK; Glasgow Coma Scale (GCS) (OR 0.86; 95% CI 0.78–0.98; p < 0.05) and insular involvement (OR 5.56; 95% CI 1.98–15.62; p < 0.05) were independent predictive factors of increase of CKMB; SIVH (OR 2.05; 95% CI 1.07–3.92; p < 0.05) was independent predictive factor of increase of LDH; age (OR 1.03; 95% CI 1.01–1.06; p < 0.05), blood glucose on admission (OR 1.10; 95% CI 1.01–1.20; p < 0.05), and history of antiplatelet drug use (OR 3.50; 95% CI 1.01–12.12; p < 0.05) were independent predictive factors of hs-cTnT. All the injury indexes were not related to in-hospital mortality. Conclusion The study suggests that insular involvement, hematoma volume > 30 ml, and SIVH are the strongest risk factors for ECG abnormalities and elevated myocardial enzymes after ICH followed which are the risk factors such as GCS, age, admission blood glucose, and ICH location in the thalamus.
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22
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Shen H, Ma Q, Jiao L, Chen F, Xue S, Li J, Li Z, Song H, Huang X. Prognosis and Predictors of Symptomatic Intracranial Hemorrhage After Endovascular Treatment of Large Vessel Occlusion Stroke. Front Neurol 2022; 12:730940. [PMID: 35126278 PMCID: PMC8813767 DOI: 10.3389/fneur.2021.730940] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 12/22/2021] [Indexed: 11/29/2022] Open
Abstract
Background Symptomatic intracranial hemorrhage (sICH) is a devastating complication of endovascular treatment (EVT) in patients with acute ischemic stroke (AIS) and is associated with high risk of disability and mortality. This study intended to evaluate the predictors of sICH after EVT in patients with large vessel occlusion (LVO)-induced AIS. Methods We conducted a retrospective review on consecutive AIS patients who underwent EVT in our University hospital between January 2019 and August 2020. The patients were classified into two groups based upon the occurrence of sICH. The main outcomes were the occurrence of sICH using the Heidelberg Bleeding Classification and functional condition at 90 days. Multivariate logistic regression analysis and receiver operating characteristics (ROC) curves were used to identify independent predictors of sICH after EVT. Results Three hundred and 69 patients were enrolled in the study, of which 16.8% (n = 62) developed sICH. Favorable neurological outcome was lower in patients with sICH than in patients without sICH (6.5 vs. 43.3%; P < 0.001), with the overall mortality being 112 (30.4%) at 90 days post- EVT. Results from univariate analysis showed significant differences between the two groups in the prevalence of diabetes, initial Alberta Stroke Program Early CT Score (ASPECTS) score, National Institutes of Health Stroke Scale (NIHSS) score after operation, the levels of fasting blood glucose (FBG), neutrophil to lymphocyte ratio (NLR), platelets (PLT), and thrombin time (TT) at admission. Multivariate logistic regression analysis showed that FBG ≥ 7.54 mmol/L (OR: 2.765; 95% confidence interval [CI]: 1.513–5.054), NLR ≥ 5.48 (OR: 2.711; 95% CI: 1.433–5.128), TT at admission ≥ 16.25 s (OR: 2.022; 95% CI: 1.115–3.667), and NIHSS score within 24 h after the operation ≥ 10 (OR: 3.728; 95% CI: 1.516–9.170) were independent predictors of sICH. The combination of NLR ≥ 5.48, FBG ≥ 7.54 mmol/L, TT at admission ≥ 16.25 s, and NIHSS score within 24 h after the operation ≥ 10 generated an optimal prediction model (AUC: 0.723). Conclusion Higher levels of FDG, NLR, TT at admission, and NIHSS score after operation were associated with sICH after EVT in patients with LVO-induced AIS.
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Affiliation(s)
- Huixin Shen
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Qingfeng Ma
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liqun Jiao
- Departments of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Fei Chen
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Sufang Xue
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jingya Li
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Zhengping Li
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Haiqing Song
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- Haiqing Song
| | - Xiaoqin Huang
- Departments of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
- *Correspondence: Xiaoqin Huang
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23
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Vornholz L, Nienhaus F, Gliem M, Alter C, Henning C, Lang A, Ezzahoini H, Wolff G, Clasen L, Rassaf T, Flögel U, Kelm M, Gerdes N, Jander S, Bönner F. Acute Heart Failure After Reperfused Ischemic Stroke: Association With Systemic and Cardiac Inflammatory Responses. Front Physiol 2022; 12:782760. [PMID: 34992548 PMCID: PMC8724038 DOI: 10.3389/fphys.2021.782760] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/24/2021] [Indexed: 12/02/2022] Open
Abstract
Patients with acute ischemic stroke (AIS) present an increased incidence of systemic inflammatory response syndrome and release of Troponin T coinciding with cardiac dysfunction. The nature of the cardiocirculatory alterations remains obscure as models to investigate systemic interferences of the brain-heart-axis following AIS are sparse. Thus, this study aims to investigate acute cardiocirculatory dysfunction and myocardial injury in mice after reperfused AIS. Ischemic stroke was induced in mice by transient right-sided middle cerebral artery occlusion (tMCAO). Cardiac effects were investigated by electrocardiograms, 3D-echocardiography, magnetic resonance imaging (MRI), invasive conductance catheter measurements, histology, flow-cytometry, and determination of high-sensitive Troponin T (hsTnT). Systemic hemodynamics were recorded and catecholamines and inflammatory markers in circulating blood and myocardial tissue were determined by immuno-assay and flow-cytometry. Twenty-four hours following tMCAO hsTnT was elevated 4-fold compared to controls and predicted long-term survival. In parallel, systolic left ventricular dysfunction occurred with impaired global longitudinal strain, lower blood pressure, reduced stroke volume, and severe bradycardia leading to reduced cardiac output. This was accompanied by a systemic inflammatory response characterized by granulocytosis, lymphopenia, and increased levels of serum-amyloid P and interleukin-6. Within myocardial tissue, MRI relaxometry indicated expansion of extracellular space, most likely due to inflammatory edema and a reduced fluid volume. Accordingly, we found an increased abundance of granulocytes, apoptotic cells, and upregulation of pro-inflammatory cytokines within myocardial tissue following tMCAO. Therefore, reperfused ischemic stroke leads to specific cardiocirculatory alterations that are characterized by acute heart failure with reduced stroke volume, bradycardia, and changes in cardiac tissue and accompanied by systemic and local inflammatory responses.
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Affiliation(s)
- Lilian Vornholz
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany.,Department of Neurology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Fabian Nienhaus
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Michael Gliem
- Department of Neurology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Christina Alter
- Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
| | - Carina Henning
- Department of Biology, Institute of Metabolic Physiology, Heinrich-Heine University, Düsseldorf, Germany
| | - Alexander Lang
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Hakima Ezzahoini
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Georg Wolff
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Lukas Clasen
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Tienush Rassaf
- Department of Cardiology and Vascular Medicine, West German Heart and Vascular Center, Medical Faculty, University Hospital Essen, Essen, Germany
| | - Ulrich Flögel
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany.,Experimental Cardiovascular Imaging, Department of Molecular Cardiology, Medical Faculty, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany.,Cardiovascular Research Institute Düsseldorf (CARID), Heinrich Heine University, Düsseldorf, Germany
| | - Malte Kelm
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany.,Cardiovascular Research Institute Düsseldorf (CARID), Heinrich Heine University, Düsseldorf, Germany
| | - Norbert Gerdes
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Sebastian Jander
- Department of Neurology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Florian Bönner
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
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24
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Jeong JW, Lee W, Kim YJ. A Real-Time Wearable Physiological Monitoring System for Home-Based Healthcare Applications. SENSORS 2021; 22:s22010104. [PMID: 35009644 PMCID: PMC8747365 DOI: 10.3390/s22010104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 12/12/2022]
Abstract
The acquisition of physiological data are essential to efficiently predict and treat cardiac patients before a heart attack occurs and effectively expedite motor recovery after a stroke. This goal can be achieved by using wearable wireless sensor network platforms for real-time healthcare monitoring. In this paper, we present a wireless physiological signal acquisition device and a smartphone-based software platform for real-time data processing and monitor and cloud server access for everyday ECG/EMG signal monitoring. The device is implemented in a compact size (diameter: 30 mm, thickness: 4.5 mm) where the biopotential is measured and wirelessly transmitted to a smartphone or a laptop for real-time monitoring, data recording and analysis. Adaptive digital filtering is applied to eliminate any interference noise that can occur during a regular at-home environment, while minimizing the data process time. The accuracy of ECG and EMG signal coverage is assessed using Bland–Altman analysis by comparing with a reference physiological signal acquisition instrument (RHS2116 Stim/Recording System, Intan). Signal coverage of R-R peak intervals showed almost identical outcome between this proposed work and the RHS2116, showing a mean difference in heart rate of 0.15 ± 4.65 bpm and a Wilcoxon’s p value of 0.133. A 24 h continuous recording session of ECG and EMG is conducted to demonstrate the robustness and stability of the device based on extended time wearability on a daily routine.
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Affiliation(s)
- Jin-Woo Jeong
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Korea;
| | - Woochan Lee
- Department of Electrical Engineering, Incheon National University, Incheon 22012, Korea
- Correspondence: (W.L.); (Y.-J.K.)
| | - Young-Joon Kim
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Korea;
- Correspondence: (W.L.); (Y.-J.K.)
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25
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Shim R, Wilson JL, Phillips SE, Lambert GW, Wen SW, Wong CHY. The role of β 2 adrenergic receptor on infection development after ischaemic stroke. Brain Behav Immun Health 2021; 18:100393. [PMID: 34877554 PMCID: PMC8633818 DOI: 10.1016/j.bbih.2021.100393] [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: 08/12/2021] [Revised: 10/31/2021] [Accepted: 11/21/2021] [Indexed: 01/17/2023] Open
Abstract
Mechanisms underlying post-stroke immune impairments and subsequent development of fatal lung infection have been suggested to involve multiple pathways, including hyperactivation of the sympathetic nervous system (SNS), which results in the excessive release of catecholamines and activation of β-adrenergic receptors (βARs). Indeed, previous reports from experimental studies demonstrated that post-stroke infection can be inhibited with treatment of β-blockers. However, the effectiveness of β-blockers in reducing post-stroke infection has yielded mixed results in retrospective clinical trials and its use remain controversial. In this study, we performed mid-cerebral artery occlusion in mice either genetically deficient in β2-adrenergic receptor (β2AR) or treated with non-selective and selective βAR antagonists to explore the contributions of the SNS in the development of post-stroke lung infection. Stroke induced a systemic activation of the SNS as indicated by elevated levels of plasma catecholamines and UCP-1 activity. However, β2AR deficient mice showed similar degrees of post-stroke immune impairment and infection rate compared to wildtype counterparts, potentially due to compensatory mechanisms common in transgenic animals. To overcome this, we treated post-stroke wildtype mice with pharmacological inhibitors of the βARs, including the non-selective antagonist propranolol (PPL) and selective β2AR antagonist ICI-118551. Both pharmacological strategies to block the action of SNS signalling were unable to reduce infection in mice that underwent ischaemic stroke. Overall, our data suggests that other mechanisms independent or in combination with β2AR activation contribute to the development of post-stroke infection. Ischaemic stroke induced a systemic activation of the sympathetic nervous system. Mice deficient of β2 adrenergic receptor showed similar post-stroke infection and signs of immune impairment compared to wildtype counterparts. Pharmacological blockade of sympathetic signalling was unable to reduce infection in mice after stroke.
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Affiliation(s)
- Raymond Shim
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Jenny L Wilson
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Sarah E Phillips
- Inversion Health Innovation Research Institute and School of Health Sciences, Swinburne University of Technology, Victoria, Australia.,Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Victoria, Australia
| | - Gavin W Lambert
- Inversion Health Innovation Research Institute and School of Health Sciences, Swinburne University of Technology, Victoria, Australia.,Human Neurotransmitters Laboratory, Baker Heart and Diabetes Institute, Victoria, Australia
| | - Shu Wen Wen
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
| | - Connie H Y Wong
- Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences at Monash Health, Monash Medical Centre, Monash University, Clayton, Victoria, Australia
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26
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Neurolytic Splanchnic Nerve Block and Pain Relief, Survival, and Quality of Life in Unresectable Pancreatic Cancer: A Randomized Controlled Trial. Anesthesiology 2021; 135:686-698. [PMID: 34398950 DOI: 10.1097/aln.0000000000003936] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Neurolytic splanchnic nerve block is used to manage pancreatic cancer pain. However, its impact on survival and quality of life remains controversial. The authors' primary hypothesis was that pain relief would be better with a nerve block. Secondarily, they hypothesized that analgesic use, survival, and quality of life might be affected. METHODS This randomized, double-blind, parallel-armed trial was conducted in five Chinese centers. Eligible patients suffering from moderate to severe pain conditions were randomly assigned to receive splanchnic nerve block with either absolute alcohol (neurolysis) or normal saline (control). The primary outcome was pain relief measured on a visual analogue scale. Opioid consumption, survival, quality of life, and adverse effects were also documented. Analgesics were managed using a protocol common to all centers. Patients were followed up for 8 months or until death. RESULTS Ninety-six patients (48 for each group) were included in the analysis. Pain relief with neurolysis was greater for the first 3 months (largest at the first month; mean difference, 0.7 [95% CI, 0.3 to 1.0]; adjusted P < 0.001) compared with placebo injection. Opioid consumption with neurolysis was lower for the first 5 months (largest at the first month; mean difference, 95.8 [95% CI, 67.4 to 124.1]; adjusted P < 0.001) compared with placebo injection. There was a significant difference in survival (hazard ratio, 1.56 [95% CI, 1.03 to 2.35]; P = 0.036) between groups. A significant reduction in survival in neurolysis was found for stage IV patients (hazard ratio, 1.94 [95% CI, 1.29 to 2.93]; P = 0.001), but not for stage III patients (hazard ratio, 1.08 [95% CI, 0.59 to 1.97]; P = 0.809). No differences in quality of life were observed. CONCLUSIONS Neurolytic splanchnic nerve block appears to be an effective option for controlling pain and reducing opioid requirements in patients with unresectable pancreatic cancer. EDITOR’S PERSPECTIVE
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27
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Belli TR, Souza LAPSD, Bazan SGZ, Bazan R, Luvizutto GJ. Effects of rehabilitation programs on heart rate variability after stroke: a systematic review. ARQUIVOS DE NEURO-PSIQUIATRIA 2021; 79:724-731. [PMID: 34550192 DOI: 10.1590/0004-282x-anp-2020-0420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/17/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND It has been shown that the autonomic nervous system can be modulated by physical exercise after stroke, but there is a lack of evidence showing rehabilitation can be effective in increasing heart rate variability (HRV). OBJECTIVE To investigate the effectiveness and safety of rehabilitation programs in modulating HRV after stroke. METHODS The search strategy was based in the PICOT (patients: stroke; interventions: rehabilitation; comparisons: any control group; outcomes: HRV; time: acute, subacute and chronic phases of stroke). We searched MEDLINE, CENTRAL, CINAHL, LILACS, and SCIELO databases without language restrictions, and included randomized controlled trials (RCTs), quasi-randomized controlled trials (quasi-RCTs), and non-randomized controlled trials (non-RCTs). Two authors independently assessed the risk of bias and we used the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology to rate the certainty of the evidence for each included study. RESULTS Four studies (two RCTs with low certainty of the evidence and two non-RCTs with very low certainty of the evidence) were included. Three of them showed significant cardiac autonomic modulation during and after stroke rehabilitation: LF/HF ratio (low frequency/high frequency) is higher during early mobilization; better cardiac autonomic balance was observed after body-mind interaction in stroke patients; and resting SDNN (standard deviation of normal R-R intervals) was significantly lower among stroke patients indicating less adaptive cardiac autonomic control during different activities. CONCLUSIONS There are no definitive conclusions about the main cardiac autonomic repercussions observed in post-stroke patients undergoing rehabilitation, although all interventions are safe for patients after stroke.
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Affiliation(s)
- Thais Regina Belli
- Universidade Federal do Triângulo Mineiro, Departamento de Fisioterapia Aplicada, Uberaba MG, Brazil
| | | | - Silméia Garcia Zanati Bazan
- Universidade Estadual Paulista, Faculdade de Medicina de Botucatu, Departamento de Clínica Médica, Botucatu SP, Brazil
| | - Rodrigo Bazan
- Universidade Estadual Paulista, Departamento de Neurologia, Psicologia e Psiquiatria, Botucatu SP, Brazil
| | - Gustavo José Luvizutto
- Universidade Federal do Triângulo Mineiro, Departamento de Fisioterapia Aplicada, Uberaba MG, Brazil
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28
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Miwa K, Koga M, Fukuda-Doi M, Yamamoto H, Tanaka K, Yoshimura S, Ihara M, Qureshi AI, Toyoda K. Effect of Heart Rate Variabilities on Outcome After Acute Intracerebral Hemorrhage: A Post Hoc Analysis of ATACH-2. J Am Heart Assoc 2021; 10:e020364. [PMID: 34387101 PMCID: PMC8475052 DOI: 10.1161/jaha.120.020364] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background To explore how the clinical impact of heart rate (HR) and heart rate variabilities (HRV) during the initial 24 hours after acute intracerebral hemorrhage (ICH) contribute to worse clinical outcomes. Methods and Results In the ATACH‐2 (Antihypertensive Treatment in Intracerebral Hemorrhage 2) trial, the HR was recorded for every 15 minutes from baseline to 1 hour and hourly during the initial 24 hours post‐randomization. We calculated the following: mean, standard deviation, coefficient of variation, successive variation, and average real variability (ARV). Outcomes were hematoma expansion at 24 hours and unfavorable functional outcome, defined as modified Rankin Scale score 4 to 6 at 90 days. Of the 1000 subjects in ATACH‐2, 994 with available HR data were included in the analyses. Overall, 262 experienced hematoma expansion, and 362 had unfavorable outcomes. Increased mean HR was linearly associated with unfavorable outcome (per 10 bpm increase adjusted odds ratio [aOR], 1.31, 95% CI, 1.14–1.50) but not with hematoma expansion, while HR‐ARV was associated with hematoma expansion (aOR, 1.06, 95% CI, 1.01–1.12) and unfavorable outcome (aOR, 1.07, 95% CI, 1.01–1.3). Every 10‐bpm increase in mean HR increased the probability of unfavorable outcome by 4.3%, while every 1 increase in HR‐ARV increased the probability of hematoma expansion by 1.1% and unfavorable outcome by 1.3%. Conclusions Increased mean HR and HR‐ARV within the initial 24 hours were independently associated with unfavorable outcome in acute ICH. Moreover, HR‐ARV was associated with hematoma expansion at 24 hours. This may have future therapeutic implications to accommodate HR and HRV in acute ICH. Registration URL: https://www.clinicaltrials.gov; Unique Identifier: NCT01176565.
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Affiliation(s)
- Kaori Miwa
- Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Masatoshi Koga
- Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Mayumi Fukuda-Doi
- Center for Advancing Clinical and Translational Sciences National Cerebral and Cardiovascular Center Suita Japan
| | - Haruko Yamamoto
- Center for Advancing Clinical and Translational Sciences National Cerebral and Cardiovascular Center Suita Japan
| | - Kanata Tanaka
- Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Sohei Yoshimura
- Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
| | - Masafumi Ihara
- Department of Neurology National Cerebral and Cardiovascular Center Suita Japan
| | - Adnan I Qureshi
- Zeenat Qureshi Stroke Institute and Department of Neurology University of Missouri Columbia MO
| | - Kazunori Toyoda
- Department of Cerebrovascular Medicine National Cerebral and Cardiovascular Center Suita Japan
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29
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Castro P, Serrador J, Rocha I, Chaves PC, Sorond F, Azevedo E. Heart failure patients have enhanced cerebral autoregulation response in acute ischemic stroke. J Thromb Thrombolysis 2021; 50:753-761. [PMID: 32488831 DOI: 10.1007/s11239-020-02166-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The cerebrovascular effects of a failing heart-pump are largely unknown. Chronic heart failure (HF) might cause pre-conditioning effect on cerebral hemodynamics but not study so far in acute stroke. We aimed to investigate if HF induces effects in dynamic cerebral autoregulation (CA), within 6 h of symptom-onset through chronic stage of ischemic stroke. We enrolled 50 patients with acute ischemic stroke. Groups with (N = 8) and without HF and 20 heathy controls were compared. Arterial blood pressure (Finometer) and cerebral blood flow velocity (transcranial Doppler) were monitored within 6 and at 24 h from symptom-onset and at 3 months. We assessed dynamic CA by transfer function analysis and cardiac disease markers. HF associated with higher phase (better dynamic CA) at ischemic hemisphere within 6 (p = 0.042) and at 24 h (p = 0.006) but this effect was not evident at 3 months (p > 0.05). Gain and coherence trends were similar between groups. We found a positive correlation between phase and admission troponin I levels (Spearman's r = 0.348, p = 0.044). Our findings advances on the knowledge of how brain and heart interact in acute ischemic stroke by showing a sustained dynamic cerebral autoregulation response in HF patients mainly with severe aortic valve disease. Understanding the physiological mechanisms that govern this complex interplay can be useful to find novel therapeutic targets which can improve outcome in ischemic stroke.
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Affiliation(s)
- Pedro Castro
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Alameda Professor Hernani Monteiro, 4200-319, Porto, Portugal. .,Department of Neurology, Centro Hospitalar Universitário de São João, Porto, Portugal.
| | - Jorge Serrador
- Veterans Biomedical Institute and War Related Illness and Injury Study Center, Department of Veterans Affairs, New Jersey Healthcare System, East Orange, USA.,New Jersey Medical School, Newark, NJ, USA
| | - Isabel Rocha
- Cardiovascular Autonomic Function Lab, Institute of Physiology, Faculty of Medicine, University of Lisbon, Lisbon, Portugal
| | - Paulo Castro Chaves
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Alameda Professor Hernani Monteiro, 4200-319, Porto, Portugal
| | - Farzaneh Sorond
- Division of Stroke and Neurocritical, Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Elsa Azevedo
- Cardiovascular Research and Development Center, Faculty of Medicine, University of Porto, Alameda Professor Hernani Monteiro, 4200-319, Porto, Portugal.,Department of Neurology, Centro Hospitalar Universitário de São João, Porto, Portugal
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30
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Castro P, Ferreira F, Nguyen CK, Payabvash S, Ozan Tan C, Sorond F, Azevedo E, Petersen N. Rapid Assessment of Blood Pressure Variability and Outcome After Successful Thrombectomy. Stroke 2021; 52:e531-e535. [PMID: 34311565 DOI: 10.1161/strokeaha.121.034291] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE High blood pressure (BP) variability after endovascular stroke therapy is associated with poor outcome. Conventional BP variability measures require long recordings, limiting their utility as a risk assessment tool to guide clinical decision-making. Here, we performed rapid assessment of BP variability by spectral analysis and evaluated its association with early clinical improvement and long-term functional outcomes. METHODS We conducted a prospective study of 146 patients with anterior circulation ischemic stroke who underwent successful endovascular stroke therapy. Spectral analysis of 5-minute recordings of beat-to-beat BP was used to quantify BP variability. Outcomes included initial clinical response and modified Rankin Scale at 90 days. RESULTS Increased BP variability at high frequencies was independently associated with poor functional outcome at 90 days (adjusted odds ratio [aOR], 1.85 [95% CI, 1.07-3.25], P=0.03; low-/high-frequency ratio aOR, 0.67 [95% CI, 0.46-0.92], P=0.02) and reduced likelihood of an early neurological recovery (aOR, 0.62 [95% CI, 0.44-0.91], P=0.01 and aOR, 1.37 [95% CI, 1.03-1.87], P=0.04, respectively). CONCLUSIONS High-frequency BP oscillations after successful reperfusion may be harmful and associate with a decreased likelihood of neurological recovery and favorable functional outcomes. Rapid assessment of BP variability throughout the postreperfusion period is feasible and may allow for a more personalized BP management.
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Affiliation(s)
- Pedro Castro
- Department of Neurology, Centro Hospitalar Universitário São João, Cardiovascular R&D Unit (P.C., E.A.), Faculty of Medicine of University of Porto, Portugal
| | - Francisca Ferreira
- Department of Clinical Neurosciences and Mental Health (F.F.), Faculty of Medicine of University of Porto, Portugal
| | - Cindy K Nguyen
- Neurocritical Care and Emergency Neurology (C.K.N., N.P.), Yale School of Medicine and Yale-New Haven Hospital, CT
| | - Seyedmehdi Payabvash
- Department of Neuroradiology (S.P.), Yale School of Medicine and Yale-New Haven Hospital, CT
| | - Can Ozan Tan
- Cerebrovascular Research Laboratory and Department of Physical Medicine and Rehabilitation, Harvard Medical School, Spaulding Rehabilitation Hospital, Boston, MA (C.O.T.)
| | - Farzaneh Sorond
- Department of Neurology, Feinberg School of Medicine Northwestern University, Chicago, IL (F.S.)
| | - Elsa Azevedo
- Department of Neurology, Centro Hospitalar Universitário São João, Cardiovascular R&D Unit (P.C., E.A.), Faculty of Medicine of University of Porto, Portugal
| | - Nils Petersen
- Neurocritical Care and Emergency Neurology (C.K.N., N.P.), Yale School of Medicine and Yale-New Haven Hospital, CT
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31
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Weinstein G, Davis-Plourde K, Beiser AS, Seshadri S. Autonomic Imbalance and Risk of Dementia and Stroke: The Framingham Study. Stroke 2021; 52:2068-2076. [PMID: 33874747 PMCID: PMC8154675 DOI: 10.1161/strokeaha.120.030601] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background and Purpose The autonomic nervous system has been implicated in stroke and dementia pathophysiology. High resting heart rate and low heart rate variability indicate the effect of autonomic imbalance on the heart. We examined the associations of resting heart rate and heart rate variability with incident stroke and dementia in a community-based cohort of middle- and old-aged adults. Methods The study sample included 1581 participants aged >60 years and 3271 participants aged >45 years evaluated for incident dementia and stroke, respectively, who participated in the Framingham Offspring cohort third (1983–1987) examination and had follow-up for neurology events after the seventh (1998–2001) examination. Heart rate variability was assessed through the standard deviation (SD) of normal-to-normal RR intervals and the root mean square of successive differences between normal heartbeats from 2-hour Holter monitor. Participants were followed-up for stroke and dementia incidence from exam 7 to a maximum of 10 years. Cox regression models were used to assess the link of resting heart rate and heart rate variability with stroke and dementia risk while adjusting for potential confounders, and interactions with age and sex were assessed. Results Of the dementia (mean age, 55±6 years, 46% men) and stroke (mean age, 48±9 years, 46% men) samples, 133 and 127 developed dementia and stroke, respectively, during the follow-up. Overall, autonomic imbalance was not associated with dementia risk. However, age modified the associations such that SD of normal-to-normal intervals and root mean square of successive differences were associated with dementia risk in older people (hazard ratio [HR] [95% CI] per 1SD, 0.61 [0.38–0.99] and HR [95% CI] per 1SD, 0.34 [0.15–0.74], respectively). High resting heart rate was associated with increased stroke risk (HR [95% CI] per 10 bpm, 1.18 [1.01–1.39]), and high SD of normal-to-normal intervals was associated with lower stroke risk in men (HR [95% CI] per 1SD, 0.46 [0.26–0.79]) but not women (HR [95% CI] per 1SD, 1.25 [0.88–1.79]; P for interaction=0.003). Conclusions Some measures of cardiac autonomic imbalance may precede dementia and stroke occurrence, particularly in older ages and men, respectively.
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Affiliation(s)
- Galit Weinstein
- School of Public Health, University of Haifa, 3498838 Haifa, Israel
| | - Kendra Davis-Plourde
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- The Framingham Study, Framingham, MA, USA
| | - Alexa S. Beiser
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- The Framingham Study, Framingham, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA
| | - Sudha Seshadri
- The Framingham Study, Framingham, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA
- Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
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32
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Li C, Meng X, Pan Y, Li Z, Wang M, Wang Y. The Association Between Heart Rate Variability and 90-Day Prognosis in Patients With Transient Ischemic Attack and Minor Stroke. Front Neurol 2021; 12:636474. [PMID: 34122296 PMCID: PMC8193569 DOI: 10.3389/fneur.2021.636474] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/04/2021] [Indexed: 12/02/2022] Open
Abstract
Background: Low heart rate variability (HRV) is known to be associated with increased all-cause, cardiovascular, and cerebrovascular mortality but its association with clinical outcomes in patients with transient ischemic attack (TIA) or minor stroke is unclear. Methods: We selected TIA and minor stroke patients from a prospective registration study. From each continuous electrocardiograph (ECG) record, each QRS complex was detected and normal-to-normal (N-N) intervals were determined. The standard deviation of all N-N intervals (SDNN) and the square root of the mean squared differences of successive N-N intervals (RMSSD) were calculated. Logistic regression analysis and Cox regression analysis were performed to assess the outcomes of patients at 90 days, and the odds and risk ratios (OR/HR) of each index quartile were compared. Results: Compared with SDNN patients in the lowest quartile, neurological disability was significantly reduced in other quartile groups at 90 days, with significant differences [OR of group Q2 was 0.659; 95% confidence interval (CI), 0.482–0.900; p = 0.0088; OR of group Q3 was 0.662; 95% CI, 0.478–0.916; p = 0.0127; OR of group Q4 was 0.441; 95% CI, 0.305–0.639; p <0.0001]. Compared with the lowest quartile, the recurrence rate of TIA or minor stroke in patients of the two higher quartiles (Q3 and Q4) of SDNN was significantly reduced at 90 days (HR of Q3 group was 0.732; 95% CI, 0.539–0.995; p = 0.0461; HR of Q4 group was 0.528; 95% CI, 0.374–0.745; p = 0.0003). Conclusions: Based on our findings, autonomic dysfunction is an adverse indicator for neurological function prognosis and stroke recurrence 90 days after TIA or minor stroke.
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Affiliation(s)
- Changhong Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Haidian Hospital, Beijing, China
| | - Xia Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Yuesong Pan
- China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Zixiao Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
| | - Mengxing Wang
- China National Clinical Research Center for Neurological Diseases, Beijing, China
| | - Yongjun Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
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Hämmerle P, Eick C, Poli S, Blum S, Schlageter V, Bauer A, Rizas KD, Eken C, Coslovsky M, Aeschbacher S, Krisai P, Meyre P, Wuerfel J, Sinnecker T, Vesin JM, Beer JH, Moschovitis G, Bonati LH, Sticherling C, Conen D, Osswald S, Kühne M, Zuern CS. Association of Heart Rate Variability With Silent Brain Infarcts in Patients With Atrial Fibrillation. Front Cardiovasc Med 2021; 8:684461. [PMID: 34095266 PMCID: PMC8175975 DOI: 10.3389/fcvm.2021.684461] [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: 03/23/2021] [Accepted: 04/20/2021] [Indexed: 11/13/2022] Open
Abstract
Purpose: Silent brain infarcts (SBI) are frequently detected in patients with atrial fibrillation (AF), but it is unknown whether SBI are linked to autonomic dysfunction. We aimed to explore the association of autonomic dysfunction with SBI in AF patients. Methods: 1,358 AF patients without prior stroke or TIA underwent brain MRI and 5-min resting ECG. We divided our cohort into AF patients who presented in sinus rhythm (SR-group, n = 816) or AF (AF-group, n = 542). HRV triangular index (HRVI), standard deviation of normal-to-normal intervals, mean heart rate, root mean square root of successive differences of normal-to-normal intervals, 5-min total power and power in the low frequency, high frequency and very low frequency range were calculated. Primary outcome was presence of SBI in the SR group, defined as large non-cortical or cortical infarcts. Secondary outcomes were SBI volumes and topography. Results: Mean age was 72 ± 9 years, 27% were female. SBI were detected in 10.5% of the SR group and in 19.9% of the AF group (p < 0.001). HRVI <15 was the only HRV parameter associated with the presence of SBI after adjustment for clinical covariates in the SR group [odds ratio (OR) 1.67; 95% confidence interval (CI): 1.03–2.70; p = 0.037]. HRVI <15 was associated with larger brain infarct volumes [β (95% CI) −0.47 (−0.84; −0.09), p = 0.016] in the SR group and was more frequently observed in patients with right- than left-hemispheric SBI (p = 0.017). Conclusion: Impaired HRVI is associated with SBI in AF patients. AF patients with autonomic dysfunction might undergo systematic brain MRI screening to initiate intensified medical treatment. Clinical Trials Gov Identifier: NCT02105844.
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Affiliation(s)
- Peter Hämmerle
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Christian Eick
- Department of Cardiology, University Hospital Tübingen, Tübingen, Germany
| | - Sven Poli
- Department of Neurology & Stroke, Hertie Institute for Clinical Brain Research, Eberhard-Karls University Tübingen, Tübingen, Germany
| | - Steffen Blum
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Vincent Schlageter
- Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Axel Bauer
- University Clinic of Internal Medicine III, Cardiology and Angiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Konstantinos D Rizas
- Medizinische Klinik und Poliklinik I, Munich University Clinic, Munich, Germany.,German Center for Cardiovascular Research Partner Site, Munich Heart Alliance, Munich, Germany
| | - Ceylan Eken
- Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Michael Coslovsky
- Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Stefanie Aeschbacher
- Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Philipp Krisai
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Pascal Meyre
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Jens Wuerfel
- Medical Image Analysis Center (MIAC) and Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Tim Sinnecker
- Medical Image Analysis Center (MIAC) and Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Neurology and Stroke Center, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jean-Marc Vesin
- Institute of Electrical Engineneering, Swiss Federal Institute of Technology, Lausanne University Hospital, Lausanne, Switzerland
| | - Jürg H Beer
- Department of Internal Medicine, Cantonal Hospital Baden, Aargau, Switzerland
| | - Giorgio Moschovitis
- Division of Cardiology, Ospedale Regionale di Lugano-Civico e Italiano, Lugano, Switzerland
| | - Leo H Bonati
- Department of Neurology and Stroke Center, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Christian Sticherling
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - David Conen
- Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland.,Population Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - Stefan Osswald
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Michael Kühne
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
| | - Christine S Zuern
- Department of Cardiology, University Hospital Basel, Basel, Switzerland.,Cardiovascular Research Institute Basel, University Hospital Basel, Basel, Switzerland
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Gens R, Ourtani A, De Vos A, De Keyser J, De Raedt S. Usefulness of the Neutrophil-to-Lymphocyte Ratio as a Predictor of Pneumonia and Urinary Tract Infection Within the First Week After Acute Ischemic Stroke. Front Neurol 2021; 12:671739. [PMID: 34054712 PMCID: PMC8155535 DOI: 10.3389/fneur.2021.671739] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022] Open
Abstract
Background: A high Neutrophil-to-Lymphocyte ratio (NLR) in patients with acute ischemic stroke (AIS) has been associated with post-stroke infections, but it's role as an early predictive biomarker for post-stroke pneumonia (PSP) and urinary tract infection (UTI) is not clear. Aim: To investigate the usefulness of NLR obtained within 24 h after AIS for predicting PSP and UTI in the first week. Methods: Clinical and laboratory data were retrieved from the University Hospital Brussels stroke database/electronic record system. Patients were divided into those who developed PSP or UTI within the first week after stroke onset and those who didn't. Receiver operating characteristics (ROC) curves and logistic regression analysis were used to identify independent predictors. Results: Five hundred and fourteen patients were included, of which 15.4% (n = 79) developed PSP and 22% (n = 115) UTI. In univariate analysis, NLR was significantly higher in patients who developed PSP (4.1 vs. 2.8, p < 0.001) but not in those who developed UTI (3.3 vs. 2.9, p = 0.074). Multiple logistic regression analysis for PSP showed that NLR, male gender, dysphagia, and stroke severity measured by the National Institutes of Health Stroke Scale (NIHSS), were independent predictors of PSP. For NLR alone, the area under the curve (AUC) in the ROC curve was 0.66 (95% CI = 0.59–0.73). When combining NLR ≥ 4.7 with age >75 years, male gender, NIHSS > 7, and dysphagia, the AUC increased to 0.84 (95% CI = 0.79–0.89). Conclusion: The NLR within 24 h after AIS appears to have no predictive value for post-stroke UTI, and is only a weak predictor for identifying patients at high risk for PSP. Its predictive value for PSP appears to be much stronger when incorporated in a prediction model including age, gender, NIHSS score, and dysphagia.
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Affiliation(s)
- Robin Gens
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Neurology/Center for Neurosciences, Brussels, Belgium
| | - Anissa Ourtani
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Neurology/Center for Neurosciences, Brussels, Belgium.,Centre Hospitalier Universitaire Brugmann (CHU Brugmann), Department of Neurology, Brussels, Belgium
| | - Aurelie De Vos
- Department of Neurology, Sint-Maria Halle, Halle, Belgium
| | - Jacques De Keyser
- Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sylvie De Raedt
- Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Department of Neurology/Center for Neurosciences, Brussels, Belgium
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35
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Post-traumatic stress disorder and its association with stroke and stroke risk factors: A literature review. Neurobiol Stress 2021; 14:100332. [PMID: 34026954 PMCID: PMC8122169 DOI: 10.1016/j.ynstr.2021.100332] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 03/27/2021] [Accepted: 04/20/2021] [Indexed: 12/19/2022] Open
Abstract
Stroke is a major cause of mortality and disability globally that has multiple risk factors. A risk factor that has recently gained more attention is post-traumatic stress disorder (PTSD). Literature searches were carried out for updated PTSD information and for the relationship between PTSD and stroke. The review was divided into two sections, one exploring PTSD as an independent risk factor for stroke, with a second concentrating on PTSD's influence on stroke risk factors. The study presents accumulating evidence that shows traumatic stress predicts stroke and is also linked to many major stroke risk factors. The review contributes knowledge to stroke aetiology and acts as a reference for understanding the relationship between PTSD and stroke. The information presented indicates that screening and identification of traumatic experience would be beneficial for directing stroke patients to appropriate psychological and lifestyle interventions. In doing so, the burden of stroke may be reduced worldwide.
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36
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Ueno M. Restoring neuro-immune circuitry after brain and spinal cord injuries. Int Immunol 2021; 33:311-325. [PMID: 33851981 DOI: 10.1093/intimm/dxab017] [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: 11/10/2020] [Accepted: 04/13/2021] [Indexed: 12/17/2022] Open
Abstract
Neuro-immune interactions are essential for our body's defense and homeostasis. Anatomical and physiological analyses have shown that the nervous system comprises multiple pathways that regulate the dynamics and functions of immune cells, which are mainly mediated by the autonomic nervous system and adrenal signals. These are disturbed when the neurons and circuits are damaged by diseases of the central nervous system (CNS). Injuries caused by stroke or trauma often cause immune dysfunction by abrogation of the immune-regulating neural pathways, which leads to an increased risk of infections. Here, I review the structures and functions of the neural pathways connecting the brain and the immune system, and the neurogenic mechanisms of immune dysfunction that emerge after CNS injuries. Recent technological advances in manipulating specific neural circuits have added mechanistic aspects of neuro-immune interactions and their dysfunctions. Understanding the neural bases of immune control and their pathological processes will deepen our knowledge of homeostasis and lead to the development of strategies to cure immune deficiencies observed in various CNS disorders.
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Affiliation(s)
- Masaki Ueno
- Department of System Pathology for Neurological Disorders, Brain Research Institute, Niigata University, Niigata, Niigata 951-8585, Japan
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37
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Lu HY, Huang APH, Kuo LT. Prognostic value of variables derived from heart rate variability in patients with traumatic brain injury after decompressive surgery. PLoS One 2021; 16:e0245792. [PMID: 33539419 PMCID: PMC7861407 DOI: 10.1371/journal.pone.0245792] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 01/07/2021] [Indexed: 11/18/2022] Open
Abstract
Measurement of heart rate variability can reveal autonomic nervous system function. Changes in heart rate variability can be associated with disease severity, risk of complications, and prognosis. We aimed to investigate the prognostic value of heart rate variability measurements in patients with moderate-to-severe traumatic brain injury after decompression surgery. We conducted a prospective study of 80 patients with traumatic brain injury after decompression surgery using a noninvasive electrocardiography device for data collection. Assessment of heart rate variability parameters included the time and frequency domains. The correlations between heart rate variability parameters and one-year mortality and functional outcomes were analyzed. Time domain measures of heart rate variability, using the standard deviation of the RR intervals and the square root of the mean squared differences of successive RR intervals, were statistically significantly lower in the group of patients with unfavorable outcomes and those that died. In frequency domain analysis, very low-frequency and total power were significantly higher in patients with favorable functional outcomes. High-frequency, low-frequency, and total power were statistically significantly higher in patients who survived for more than one year. Multivariate analysis using a model combining age and the Glasgow Coma Scale score with variables derived from heart rate variability substantially improved the prognostic value for predicting long-term outcome. These findings reinforced the concept that traumatic brain injury impacts the brain-heart axis and cardiac autonomic modulation even after decompression surgery, and variables derived from heart rate variability may be useful predictors of outcome.
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Affiliation(s)
- Hsueh-Yi Lu
- Department of Industrial Engineering and Management, National Yunlin University of Science and Technology, Douliou, Yunlin County, Taiwan
| | - Abel Po-Hao Huang
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Lu-Ting Kuo
- Division of Neurosurgery, Department of Surgery, National Taiwan University Hospital, Taipei, Taiwan
- * E-mail:
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38
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Früh A, Goliasch G, Wurm R, Arfsten H, Seidel S, Galli L, Kriechbaumer L, Hubner P, Heinz G, Sterz F, Adlbrecht C, Distelmaier K. Gastric regurgitation predicts neurological outcome in out-of-hospital cardiac arrest survivors. Eur J Intern Med 2021; 83:54-57. [PMID: 32839077 DOI: 10.1016/j.ejim.2020.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/11/2020] [Accepted: 08/10/2020] [Indexed: 12/19/2022]
Abstract
Hypoxic-ischemic brain injury can affect and disturb the autonomous nervous system (ANS), which regulates various visceral systems including the gastro-intestinal and emetic system. The present study aimed to analyze the predictive value of gastric regurgitation (GReg) for neurological outcome in out-of-hospital cardiac arrest (OHCA) survivors. In this prospective, single-center study, 79 OHCA survivors treated at a university-affiliated tertiary care centre were included and GReg was measured at the first day after successful cardiopulmonary resuscitation. Neurological outcome was assessed by the Cerebral Performance Categories score at discharge. Seventy-six percent of the study population had a poor neurological outcome. GReg was found to be associated with poor neurological outcome with an adjusted OR of 5.37 (95% CI 1.41-20.46; p = 0.01). The area under the ROC curve for GReg was 0.69 (95% CI, 0.56-0.81) for poor neurological outcome. GReg on the first day after OHCA is an early, strong and independent predictor for poor neurological outcome in comatose OHCA survivors. These results are particularly compelling because measurement of GReg is inexpensive and routinely performed in critical care units.
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Affiliation(s)
- Anton Früh
- Department of Internal Medicine II, Medical University of Vienna, Austria
| | - Georg Goliasch
- Department of Internal Medicine II, Medical University of Vienna, Austria
| | - Raphael Wurm
- Department of Neurology, Medical University of Vienna, Austria
| | - Henrike Arfsten
- Department of Internal Medicine II, Medical University of Vienna, Austria
| | - Stefan Seidel
- Department of Neurology, Medical University of Vienna, Austria
| | - Lukas Galli
- Department of Internal Medicine II, Medical University of Vienna, Austria
| | - Lukas Kriechbaumer
- University Clinic of Orthopedics, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Pia Hubner
- Department of Emergency Medicine, Medical University of Vienna, Austria
| | - Gottfried Heinz
- Department of Internal Medicine II, Medical University of Vienna, Austria
| | - Fritz Sterz
- Department of Emergency Medicine, Medical University of Vienna, Austria
| | - Christopher Adlbrecht
- Department of Cardiology, Vienna North Hospital - Clinic Floridsdorf and the Karl Landsteiner Institute for Cardiovascular and Critical Care Research Vienna, Brünner Straße 68, 1210 Vienna, Austria.
| | - Klaus Distelmaier
- Department of Internal Medicine II, Medical University of Vienna, Austria
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39
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Jafari M, Desai A, Damani R. Blood pressure management after mechanical thrombectomy in stroke patients. J Neurol Sci 2020; 418:117140. [PMID: 32961389 DOI: 10.1016/j.jns.2020.117140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/15/2022]
Abstract
Endovascular treatment of acute ischemic stroke (AIS) and mechanical thrombectomy (MT) is proven as a safe and effective novel treatment for emergent large vessel occlusion in the anterior cerebral circulation. However, there are still many unanswered questions on peri and post-procedural management including blood pressure (BP) control. The current guidelines recommend maintaining BP <180/105 mmHg in the first 24 h after MT. However, recent studies suggest that maintaining BP levels at lower levels in the first 24 h after successful revascularization have been associated with favorable functional outcome, reduced mortality rate, and hemorrhagic complications. Not only absolute BP but also its variation in the first 24 h after MT have been associated with neurological outcomes. Evidence on the effect of BP variability (BPV) after MT in AIS even though limited, it does indicate the association of the higher BPV in the first 24 h after MT and poor functional outcomes in AIS. In this review, we will discuss the current literature on BP management in the first 24 h after MT and the impact of BPV in the first 24 h after MT.
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Affiliation(s)
- Mostafa Jafari
- Department of Neurology, Baylor College of Medicine, Houston, TX, USA
| | - Aaron Desai
- Department of Neurology, Baylor College of Medicine, Houston, TX, USA
| | - Rahul Damani
- Department of Neurology, Baylor College of Medicine, Houston, TX, USA; Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA.
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Sykora M, Szabo J, Siarnik P, Turcani P, Krebs S, Lang W, Czosnyka M, Smielewski P. Heart rate entropy is associated with mortality after intracereberal hemorrhage. J Neurol Sci 2020; 418:117033. [DOI: 10.1016/j.jns.2020.117033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 10/23/2022]
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Block L, El‐Merhi A, Liljencrantz J, Naredi S, Staron M, Odenstedt Hergès H. Cerebral ischemia detection using artificial intelligence (CIDAI)-A study protocol. Acta Anaesthesiol Scand 2020; 64:1335-1342. [PMID: 32533722 DOI: 10.1111/aas.13657] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND The onset of cerebral ischemia is difficult to predict in patients with altered consciousness using the methods available. We hypothesize that changes in Heart Rate Variability (HRV), Near-Infrared Spectroscopy (NIRS), and Electroencephalography (EEG) correlated with clinical data and processed by artificial intelligence (AI) can indicate the development of imminent cerebral ischemia and reperfusion, respectively. This study aimed to develop a method that enables detection of imminent cerebral ischemia in unconscious patients, noninvasively and with the support of AI. METHODS This prospective observational study will include patients undergoing elective surgery for carotid endarterectomy and patients undergoing acute endovascular embolectomy for cerebral arterial embolism. HRV, NIRS, and EEG measurements and clinical information on patient status will be collected and processed using machine learning. The study will take place at Sahlgrenska University Hospital, Gothenburg, Sweden. Inclusion will start in September 2020, and patients will be included until a robust model can be constructed. By analyzing changes in HRV, EEG, and NIRS measurements in conjunction with cerebral ischemia or cerebral reperfusion, it should be possible to train artificial neural networks to detect patterns of impending cerebral ischemia. The analysis will be performed using machine learning with long short-term memory artificial neural networks combined with convolutional layers to identify patterns consistent with cerebral ischemia and reperfusion. DISCUSSION Early signs of cerebral ischemia could be detected more rapidly by identifying patterns in integrated, continuously collected physiological data processed by AI. Clinicians could then be alerted, and appropriate actions could be taken to improve patient outcomes.
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Affiliation(s)
- Linda Block
- Department of Anaesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
- Department of Anaesthesiology and Intensive Care Region Västra GötalandSahlgrenska University Hospital Gothenburg Sweden
| | - Ali El‐Merhi
- Department of Anaesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
- Department of Anaesthesiology and Intensive Care Region Västra GötalandSahlgrenska University Hospital Gothenburg Sweden
| | - Jaquette Liljencrantz
- Department of Anaesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
- Department of Anaesthesiology and Intensive Care Region Västra GötalandSahlgrenska University Hospital Gothenburg Sweden
| | - Silvana Naredi
- Department of Anaesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
- Department of Anaesthesiology and Intensive Care Region Västra GötalandSahlgrenska University Hospital Gothenburg Sweden
| | - Miroslaw Staron
- Department of Computer Science and Engineering University of Gothenburg Gothenburg Sweden
| | - Helena Odenstedt Hergès
- Department of Anaesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska AcademyUniversity of Gothenburg Gothenburg Sweden
- Department of Anaesthesiology and Intensive Care Region Västra GötalandSahlgrenska University Hospital Gothenburg Sweden
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Bjerkne Wenneberg S, Löwhagen Hendén PM, Oras J, Naredi S, Block L, Ljungqvist J, Odenstedt Hergès H. Heart rate variability monitoring for the detection of delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage. Acta Anaesthesiol Scand 2020; 64:945-952. [PMID: 32236937 DOI: 10.1111/aas.13582] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/25/2020] [Accepted: 03/08/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Delayed cerebral ischemia (DCI) is a major cause of impaired outcome after aneurysmal subarachnoidal hemorrhage (aSAH). In this observational cohort study we investigated whether changes in heart rate variability (HRV) that precede DCI could be detected. METHODS Sixty-four patients with aSAH were included. HRV data were collected for up to 10 days and analyzed offline. Correlation with clinical status and/or radiologic findings was investigated. A linear mixed model was used for the evaluation of HRV parameters over time in patients with and without DCI. Extended Glasgow outcome scale score was assessed after 1 year. RESULTS In 55 patients HRV data could be analyzed. Fifteen patients developed DCI. No changes in HRV parameters were observed 24 hours before onset of DCI. Mean of the HRV parameters in the first 48 hours did not correlate with the development of DCI. Low/high frequency (LF/HF) ratio increased more in patients developing DCI (β -0.07 (95% confidence interval, 0.12-0.01); P = .012). Lower STDRR (standard deviation of RR intervals), RMSSD (root mean square of the successive differences between adjacent RR intervals), and total power (P = .003, P = .007 and P = .004 respectively) in the first 48 hours were seen in patients who died within 1 year. CONCLUSION Impaired HRV correlated with 1-year mortality and LF/HF ratio increased more in patients developing DCI. Even though DCI could not be detected by the intermittent analysis of HRV used in this study, continuous HRV monitoring may have potential in the detection of DCI after aSAH using different methods of analysis.
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Affiliation(s)
- Sandra Bjerkne Wenneberg
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Pia M. Löwhagen Hendén
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Jonatan Oras
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Silvana Naredi
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Linda Block
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Johan Ljungqvist
- Department of Neurosurgery Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Clinical Neurosciences Institute of Neuroscience and Physiology Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Helena Odenstedt Hergès
- Department of Anesthesia and Intensive Care Region VästraGötaland Sahlgrenska University Hospital Gothenburg Sweden
- Department of Anesthesiology and Intensive Care Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
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Nous A, Peeters I, Nieboer K, Vanbinst AM, De Keyser J, De Raedt S. Post-stroke infections associated with spleen volume reduction: A pilot study. PLoS One 2020; 15:e0232497. [PMID: 32392257 PMCID: PMC7213723 DOI: 10.1371/journal.pone.0232497] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 04/15/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Spleen volume reduction followed by re-expansion has been described in acute ischemic stroke in both animal and human studies. Splenic contraction might be partially due to sympathetic hyperactivity and might be accompanied by release of splenocytes in the peripheral circulation, leading to immunodepression. AIMS To investigate whether spleen volume changes in the first week after stroke are associated with post-stroke infections, changes in lymphocytes count and autonomic dysfunction. METHODS In patients with acute ischemic stroke, spleen sizes were calculated from abdominal CT images on day one and day seven. Spleen size reduction was defined as > 10% spleen size reduction between day one and day seven. Post stroke infections were diagnosed during the first seven days after stroke onset using the modified criteria of the US Center of Disease Control and Prevention. We assessed the time course of leukocyte subsets and analysed pulse rate variability (PRV) indices. RESULTS Post-stroke infections occurred in six out of 11 patients (55%) with spleen size reduction versus in five out of 27 patients (19%) without spleen size reduction (p = 0,047). Spleen size reduction was associated with a drop in lymphocytes and several lymphocyte subsets from admission to day one, and a higher NIHSS at admission and at day three (p = 0,028 and p = 0,006 respectively). No correlations could be found between spleen volume change and PRV parameters. CONCLUSION Post-stroke infections and a drop in lymphocytes and several lymphocyte subsets are associated with spleen volume reduction in acute ischemic stroke.
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Affiliation(s)
- Amber Nous
- Department of Neurology, Universitair Ziekenhuis Brussel, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Ilse Peeters
- Department of Neurology, Universitair Ziekenhuis Brussel, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Koenraad Nieboer
- Department of Radiology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Anne-Marie Vanbinst
- Department of Radiology, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
| | - Jacques De Keyser
- Department of Neurology, Universitair Ziekenhuis Brussel, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Sylvie De Raedt
- Department of Neurology, Universitair Ziekenhuis Brussel, Center for Neurosciences, Vrije Universiteit Brussel, Brussels, Belgium
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Abstract
OBJECTIVES Constipation is prevalent in individuals after stroke. However, the pathophysiological mechanisms of poststroke constipation remain unclear. This study was designed (i) to investigate the difference in anorectal motility and rectal sensation among stroke patients with constipation, stroke patients without constipation, and healthy controls (HC), (ii) to evaluate the impact of stroke sites on constipation and rectal sensation, (iii) to explore the role of autonomic functions, and (iv) to determine the independent risk factors for poststroke constipation. METHODS Seventy-one stroke patients and 24 HC were recruited. General information, clinical characteristics, and relevant questionnaires were collected. Meanwhile, an anorectal manometry test was performed to assess functions of anorectal motility and rectal sensation, and an electrocardiogram was recorded to evaluate autonomic functions. RESULTS (i) Constipation patients exhibited increased rectal sensation thresholds, compared with patients without constipation or HC (P < 0.001). Almost no difference was detected in anorectal motility parameters among 3 groups. Constipation-associated clinical characteristics, such as spontaneous bowel movements, were weakly or moderately correlated with rectal sensation thresholds (P < 0.05 to P < 0.001 for various parameters). (ii) Patients with brainstem lesions had increased prevalence of constipation and first sensation threshold, compared with patients without brainstem lesions (P = 0.045, P = 0.025, respectively). (iii) There was a weak positive correlation between sympathetic activity and stroke severity and a weak negative one between vagal activity and stroke severity. Rectal sensation thresholds were positively and weakly correlated with sympathetic activity but negatively with vagal activity. (iv) The desire of defecation threshold and the physical activity were independent risk factors for poststroke constipation (P = 0.043, P = 0.025, respectively). DISCUSSION Poststroke constipation is characterized by elevated thresholds for rectal sensation, rather than altered anorectal motility. Patients with brainstem lesions are predisposed to constipation possibly because of the disruption of afferent pathway from the rectum to the brain. Moreover, the desire of defecation threshold and the physical activity level are factors independently associated with poststroke constipation.
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Verma AK, Aarotale PN, Dehkordi P, Lou JS, Tavakolian K. Relationship between Ischemic Stroke and Pulse Rate Variability as a Surrogate of Heart Rate Variability. Brain Sci 2019; 9:E162. [PMID: 31295816 PMCID: PMC6680838 DOI: 10.3390/brainsci9070162] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/27/2019] [Accepted: 07/03/2019] [Indexed: 12/18/2022] Open
Abstract
Autonomic reflex ascertains cardiovascular homeostasis during standing. Impaired autonomic reflex could lead to dizziness and falls while standing; this is prevalent in stroke survivors. Pulse rate variability (PRV) has been utilized in the literature in lieu of heart rate variability (HRV) for ambulatory and portable monitoring of autonomic reflex predominantly in young, healthy individuals. Here, we compared the PRV with gold standard HRV for monitoring autonomic reflex in ischemic stroke survivors. Continuous blood pressure and electrocardiography were acquired from ischemic stroke survivors (64 ± 1 years) and age-matched controls (65 ± 2 years) during a 10-minute sit-to-stand test. Beat-by-beat heart period (represented by RR and peak-to-peak (PP) intervals), systolic blood pressure (SBP), diastolic blood pressure (DBP), and pulse arrival time (PAT), an indicator of arterial stiffness, were derived. Time and frequency domain HRV (from RR intervals) and PRV (from PP intervals) metrics were extracted. PAT was lower (248 ± 7 ms vs. 270 ± 8 ms, p < 0.05) suggesting higher arterial stiffness in stroke survivors compared to controls during standing. Further, compared to controls, the agreement between HRV and PRV was impaired in stroke survivors while standing. The study outcomes suggest that caution should be exercised when considering PRV as a surrogate of HRV for monitoring autonomic cardiovascular control while standing in stroke survivors.
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Affiliation(s)
- Ajay K Verma
- School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58202, USA
| | - Parshuram N Aarotale
- School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58202, USA
| | - Parastoo Dehkordi
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Jau-Shin Lou
- Sanford Brain and Spine Center, Sanford Health, Fargo, ND 58103, USA
| | - Kouhyar Tavakolian
- School of Electrical Engineering and Computer Science, University of North Dakota, Grand Forks, ND 58202, USA.
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Chen CH, Hung KS, Chung YC, Yeh ML. Mind-body interactive qigong improves physical and mental aspects of quality of life in inpatients with stroke: A randomized control study. Eur J Cardiovasc Nurs 2019; 18:658-666. [PMID: 31232097 DOI: 10.1177/1474515119860232] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Stroke, a medical condition that causes physical disability and mental health problems, impacts negatively on quality of life. Post-stroke rehabilitation is critical to restoring quality of life in these patients. OBJECTIVES This study was designed to evaluate the effect of a mind-body interactive qigong intervention on the physical and mental aspects of quality of life, considering bio-physiological and mental covariates in subacute stroke inpatients. METHODS A randomized controlled trial with repeated measures design was used. A total of 68 participants were recruited from the medical and rehabilitation wards at a teaching hospital in northern Taiwan and then randomly assigned either to the Chan-Chuang qigong group, which received standard care plus a 10-day mind-body interactive exercise program, or to the control group, which received standard care only. Data were collected using the National Institutes of Health Stroke Scale, Hospital Anxiety and Depression Scale, Short Form-12, stroke-related neurologic deficit, muscular strength, heart rate variability and fatigue at three time points: pre-intervention, halfway through the intervention (day 5) and on the final day of the intervention (day 10). RESULTS The results of the mixed-effect model analysis showed that the qigong group had a significantly higher quality of life score at day 10 (p<0.05) than the control group. Among the covariates, neurologic deficit (p=0.04), muscle strength (p=0.04), low frequency to high frequency ratio (p=0.02) and anxiety (p=0.04) were significantly associated with changes in quality of life. Conversely, heart rate, heart rate variability (standard deviation of normal-to-normal intervals, low frequency and high frequency), fatigue and depression were not significantly associated with change in quality of life (p >0.05). CONCLUSIONS This study supports the potential benefits of a 10-day mind-body interactive exercise (Chan-Chuang qigong) program for subacute stroke inpatients and provides information that may be useful in planning adjunctive rehabilitative care for stroke inpatients.
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Affiliation(s)
- Ching-Hsiang Chen
- Department of Nursing, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
| | - Kuo-Sheng Hung
- Graduate Institute of Injury Prevention and Control, and Department of Neurosurgery, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chu Chung
- Department of Nursing, Yuanpei University of Medical Technology, Hsinchu, Taiwan
| | - Mei-Ling Yeh
- Department of Nursing, National Taipei University of Nursing & Health Sciences, Taipei, Taiwan
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Tobaldini E, Proserpio P, Oppo V, Figorilli M, Fiorelli EM, Manconi M, Agostoni EC, Nobili L, Montano N, Horvath T, Bassetti CL. Cardiac autonomic dynamics during sleep are lost in patients with TIA and stroke. J Sleep Res 2019; 29:e12878. [PMID: 31192512 DOI: 10.1111/jsr.12878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/26/2019] [Accepted: 04/27/2019] [Indexed: 01/28/2023]
Abstract
Ischaemic stroke is accompanied by important alterations of cardiac autonomic control, which have an impact on stroke outcome. In sleep, cardiac autonomic control oscillates with a predominant sympathetic modulation during REM sleep. We aimed to assess cardiac autonomic control in different sleep stages in patients with ischaemic stroke. Forty-five patients enrolled in the prospective, multicentre SAS-CARE study but without significant sleep-disordered breathing (apnea-hypopnea index < 15/hr) and without atrial fibrillation were included in this analysis. The mean age was 56 years, 68% were male, 76% had a stroke (n = 34, mean National Institutes of Health Stroke Scale [NIHSS] score of 5, 11 involving the insula) and 24% (n = 11) had a transitory ischaemic attack. Cardiac autonomic control was evaluated using three different tools (spectral, symbolic and entropy analysis) according to sleep stages on short segments of 250 beats in all patients. Polysomnographic studies were performed within 7 days and 3 months after the ischaemic event. No significant differences in cardiac autonomic control between sleep stages were observed in the acute phase and after 3 months. Predominant vagal modulation and decreased sympathetic modulation were observed across all sleep stages in ischaemic stroke involving the insula. Patients with ischaemic stroke and transitory ischaemic attack present a loss of cardiac autonomic dynamics during sleep in the first 3 months after the ischaemic event. This change could represent an adaptive phenomenon, protecting the cardiovascular system from the instabilities of autonomic control, or a risk factor for stroke, which precedes the ischaemic event.
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Affiliation(s)
- Eleonora Tobaldini
- Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | | | - Valentina Oppo
- Department of Neuroscience, Niguarda Hospital, Milan, Italy
| | | | - Elisa M Fiorelli
- Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Mauro Manconi
- Sleep and Epilepsy Center, Neurocenter of Southern Switzerland, Civic Hospital of Lugano, Lugano, Switzerland.,Department of Neurology, Inselspital, University Hospital, Bern, Switzerland
| | | | - Lino Nobili
- Department of Neuroscience, Niguarda Hospital, Milan, Italy.,Department of Neuroscience (DINOGMI), University of Genoa, Genoa, Italy
| | - Nicola Montano
- Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Thomas Horvath
- Department of Neurology, Inselspital, University Hospital, Bern, Switzerland
| | - Claudio L Bassetti
- Department of Neurology, Inselspital, University Hospital, Bern, Switzerland
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Fröhlich K, Macha K, Gerner ST, Bobinger T, Schmidt M, Dörfler A, Hilz MJ, Schwab S, Seifert F, Kallmünzer B, Winder K. Angioedema in Stroke Patients With Thrombolysis. Stroke 2019; 50:1682-1687. [PMID: 31182002 DOI: 10.1161/strokeaha.119.025260] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Purpose- Oral angioedema (OA) is a rare but life-threatening complication in patients with ischemic stroke receiving intravenous thrombolysis with r-tPA (recombinant tissue-type plasminogen activator). This study intended to determine associations between thrombolysis-related OA and ischemic stroke lesion sites using a voxel-wise lesion analysis. Methods- Prospective registry data were used to identify ischemic stroke patients with thrombolysis-related OA between 2002 and 2018. For the study registry, ethics approval was obtained by the Ethics Committee of the Friedrich-Alexander Universität (FAU) Erlangen-Nürnberg (clinical registry registration: 377_17Bc). Ischemic stroke patients with thrombolysis treatment but without OA admitted in the years 2011 and 2012 comprised the control group. Ischemic lesions were manually outlined on magnetic resonance imaging (1.5T or 3T) or computed tomographic scans and transformed into stereotaxic space. We determined the lesion overlap and compared the absence or presence of OA voxel-wise between patients with and without lesions in a given voxel using the Liebermeister test. Stroke severity was rated using the National Institutes of Health Stroke Scale score, and blood pressure, heart rate, blood glucose levels, and body temperature were determined on admission. Results- Fifteen ischemic stroke patients with thrombolysis-related OA were identified. The voxel-wise analysis yielded associations between OA and ischemic lesions in the insulo-opercular region with a right hemispheric dominance. Mean blood pressure was significantly lower in patients with OA than in controls. Age, National Institutes of Health Stroke Scale scores, infarct volumes, heart rate, and blood glucose levels did not differ between patients with and without OA. Conclusions- The voxel-wise analysis linked thrombolysis-related OA to right insulo-opercular lesions. The lower blood pressure in patients with thrombolysis-related OA may reflect bradykinin effects causing vasodilatation and increasing vascular permeability.
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Affiliation(s)
- Kilian Fröhlich
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Kosmas Macha
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Stefan T Gerner
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Tobias Bobinger
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Manuel Schmidt
- Department of Neuroradiology (M.S., A.D.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Arnd Dörfler
- Department of Neuroradiology (M.S., A.D.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Max J Hilz
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany.,Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY (M.J.H.)
| | - Stefan Schwab
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Frank Seifert
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Bernd Kallmünzer
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
| | - Klemens Winder
- From the Department of Neurology (K.F., K.M., S.T.G., T.B., M.J.H., S.S., F.S., B.K., K.W.), University Hospital Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Germany
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The effect of unilateral stroke on autonomic function in the term newborn. Pediatr Res 2019; 85:830-834. [PMID: 30712058 DOI: 10.1038/s41390-019-0320-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 12/28/2018] [Accepted: 01/21/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND The mature cerebral cortex has a topographically organized influence on reflex autonomic centers of the brainstem and diencephalon and sympathetic activation coming primarily from the right hemisphere and parasympathetic activation from the left. In the term newborn, the maturational status of this central autonomic system remains poorly understood. METHODS Sixteen term newborns admitted to Children's National with unilateral middle cerebral artery (MCA) strokes (n = 8 left, n = 8 right) had archived continuous electrocardiograph (EKG) signals available. We compared stroke laterality and severity with indices of autonomic function, as measured by heart rate variability. We performed both time- and frequency-domain analyses on the R-R interval (RRi) over 24h of continuous EKG data at around 7 days of age. RESULTS Right MCA stroke significantly increased sympathetic tone, while left MCA stroke increased parasympathetic tone. Regardless of laterality, stroke severity was associated inversely with sympathetic tone and positively with parasympathetic tone. Surprisingly, injury to either insular region had no significant autonomic effect. Phenobarbital blood levels were positively associated with sympathetic tone and inversely related to parasympathetic tone. CONCLUSION Based on these findings, it is difficult to reconcile the functional topography of the central autonomic system in term newborns with that currently proposed for the normal mature brain. Further investigation is clearly needed.
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50
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Chang JY, Jeon SB, Jung C, Gwak DS, Han MK. Postreperfusion Blood Pressure Variability After Endovascular Thrombectomy Affects Outcomes in Acute Ischemic Stroke Patients With Poor Collateral Circulation. Front Neurol 2019; 10:346. [PMID: 31031686 PMCID: PMC6473026 DOI: 10.3389/fneur.2019.00346] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 03/21/2019] [Indexed: 12/12/2022] Open
Abstract
Background and Purpose: We evaluated the effect of 24 h blood pressure variability (BPV) on clinical outcomes in acute ischemic stroke patients with successful recanalization after endovascular recanalization therapy (ERT). Methods: Patients with anterior circulation occlusion were evaluated if they underwent ERT based on multiphase computed tomography angiography and achieved successful recanalization (≥thrombolysis in cerebral ischemia 2b). Collateral degrees were dichotomized based on the pial arterial filling score, with a score of 0-3 defined as a poor collateral status. BPV parameters include mean, standard deviation, coefficient of variation, and variation independent of the mean (VIM) for systolic blood pressure (SBP), diastolic blood pressure (DBP), mean blood pressure, and pulse rate (PR). These parameters were measured for 24 h after ERT and were analyzed according to occlusion sites and stroke mechanisms. Associations of BPV parameters with clinical outcomes were investigated with stratification based on the baseline collateral status. Results: BPV was significantly different according to the occlusion sites and stroke mechanisms, and higher BPV was observed in patients with internal carotid artery occlusion or cardioembolic occlusion. After adjustment for confounders, most BPV parameters remained significant to predict functional outcomes at 3 months in patients with poor collateral circulation. However, no significant association was found between BPV parameters and clinical outcomes in patients with good collateral circulation. Conclusion: Postreperfusion BP management by decreasing BPV may have influence on improving clinical outcome in cases of poor collateral circulation among patients achieving successful recanalization after ERT.
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Affiliation(s)
- Jun Young Chang
- Department of Neurology, Asan Medical Center, Seoul, South Korea
| | - Sang-Beom Jeon
- Department of Neurology, Asan Medical Center, Seoul, South Korea
| | - Cheolkyu Jung
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam, South Korea
| | - Dong Seok Gwak
- Department of Neurology, Kyungpook National University Hospital, Daegu, South Korea
| | - Moon-Ku Han
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, South Korea.,Department of Neurology, College of Medicine, Seoul National University, Seoul, South Korea
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