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Iser C, Arca K. Headache and Autonomic Dysfunction: a Review. Curr Neurol Neurosci Rep 2022; 22:625-634. [PMID: 35994191 DOI: 10.1007/s11910-022-01225-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE OF REVIEW We explore the anatomy of the central and peripheral autonomic pathways involved in primary headache as well as the mechanisms for secondary headache associated with disorders of the autonomic nervous system. The prevalence and clinical presentation of cranial and systemic autonomic symptoms in these conditions will be discussed, with a focus on recent studies. RECENT FINDINGS Several small studies have utilized the relationship between headache and the autonomic nervous system to identify potential biomarkers to aid in diagnosis of migraine and cluster headache. Headache in postural orthostatic tachycardia syndrome (POTS) has also been further characterized, particularly in its association with orthostatic headache and spontaneous intracranial hypotension (SIH). This review examines the pathophysiology of primary and secondary headache disorders in the context of the autonomic nervous system. Mechanisms of headache associated with systemic autonomic disorders are also reviewed.
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Affiliation(s)
- Courtney Iser
- Department of Neurology, Mayo Clinic Scottsdale, Scottsdale, AZ, USA
| | - Karissa Arca
- Department of Neurology, Mayo Clinic Scottsdale, Scottsdale, AZ, USA.
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Pino IP, Nightingale TE, Hoover C, Zhao Z, Cahalan M, Dorey TW, Walter M, Soriano JE, Netoff TI, Parr A, Samadani U, Phillips AA, Krassioukov AV, Darrow DP. The safety of epidural spinal cord stimulation to restore function after spinal cord injury: post-surgical complications and incidence of cardiovascular events. Spinal Cord 2022; 60:903-910. [PMID: 35701485 DOI: 10.1038/s41393-022-00822-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 11/09/2022]
Abstract
STUDY DESIGN Cohort prospective study. OBJECTIVES Epidural spinal cord stimulation (eSCS) improves volitional motor and autonomic function after spinal cord injury (SCI). While eSCS has an established history of safety for chronic pain, it remains unclear if eSCS in the SCI population presents the same risk profile. We aimed to assess safety and autonomic monitoring data for the first 14 participants in the E-STAND trial. SETTING Hennepin County Medical Center, Minneapolis and Minneapolis Veterans Affairs Medical Center, Minnesota, USA. METHODS Monthly follow-up visits assessed surgical and medical device-related safety outcomes as well as stimulation usage. Beat-by-beat blood pressure (BP) and continuous electrocardiogram data were collected during head-up tilt-table testing with and without eSCS. RESULTS All participants had a motor-complete SCI. Mean (SD) age and time since injury were 38 (10) and 7 (5) years, respectively. There were no surgical complications but one device malfunction 4 months post implantation. Stimulation was applied for up to 23 h/day, across a broad range of parameters: frequency (18-700 Hz), pulse width (100-600 µs), and amplitude (0.4-17 mA), with no adverse events reported. Tilt-table testing with eSCS demonstrated no significant increases in the incidence of elevated systolic BP or a greater frequency of arrhythmias. CONCLUSIONS eSCS to restore autonomic and volitional motor function following SCI has a similar safety profile as when used to treat chronic pain, despite the prevalence of significant comorbidities and the wide variety of stimulation parameters tested.
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Affiliation(s)
- Isabela Peña Pino
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.,Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA.,Division of Neurosurgery, Hennepin County Medical Center, Minneapolis, MN, USA
| | - Thomas E Nightingale
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, UK.,International Collaboration on Repair Discoveries (ICORD), University of British Columbia (UBC), Vancouver, BC, Canada.,Centre for Trauma Sciences Research, University of Birmingham, Edgbaston, Birmingham, UK
| | - Caleb Hoover
- Department of Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN, USA
| | - Zixi Zhao
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Mark Cahalan
- MD Undergraduate Program, Faculty of Medicine, The University of British Columbia, Vancouver, BC, Canada
| | - Tristan W Dorey
- Cardiovascular and Respiratory Science, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Matthias Walter
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia (UBC), Vancouver, BC, Canada.,Department of Urology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Jan E Soriano
- Departments of Physiology and Pharmacology, Cardiac Sciences, Clinical Neurosciences, Hotchkiss Brain Institute, Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Theoden I Netoff
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Ann Parr
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA
| | - Uzma Samadani
- Department of Bioinformatics and Computational Biology, University of Minnesota, Minneapolis, MN, USA.,Minneapolis Veterans Affairs Medical Center, Minneapolis, MN, USA
| | - Aaron A Phillips
- Departments of Physiology and Pharmacology, Cardiac Sciences, Clinical Neurosciences, Hotchkiss Brain Institute, Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Andrei V Krassioukov
- International Collaboration on Repair Discoveries (ICORD), University of British Columbia (UBC), Vancouver, BC, Canada. .,Department of Medicine, Division of Physical Medicine and Rehabilitation, UBC, Vancouver, BC, Canada. .,GF Strong Rehabilitation Centre, Vancouver Coastal Health, Vancouver, BC, Canada.
| | - David P Darrow
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA. .,Division of Neurosurgery, Hennepin County Medical Center, Minneapolis, MN, USA.
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