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Papadopoulou A, Pfister A, Tsagkas C, Gaetano L, Sellathurai S, D'Souza M, Cerdá-Fuertes N, Gugleta K, Descoteaux M, Chakravarty MM, Fuhr P, Kappos L, Granziera C, Magon S, Sprenger T, Hardmeier M. Visual evoked potentials in multiple sclerosis: P100 latency and visual pathway damage including the lateral geniculate nucleus. Clin Neurophysiol 2024; 161:122-132. [PMID: 38461596 DOI: 10.1016/j.clinph.2024.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
OBJECTIVE To explore associations of the main component (P100) of visual evoked potentials (VEP) to pre- and postchiasmatic damage in multiple sclerosis (MS). METHODS 31 patients (median EDSS: 2.5), 13 with previous optic neuritis (ON), and 31 healthy controls had VEP, optical coherence tomography and magnetic resonance imaging. We tested associations of P100-latency to the peripapillary retinal nerve fiber layer (pRNFL), ganglion cell/inner plexiform layers (GCIPL), lateral geniculate nucleus volume (LGN), white matter lesions of the optic radiations (OR-WML), fractional anisotropy of non-lesional optic radiations (NAOR-FA), and to the mean thickness of primary visual cortex (V1). Effect sizes are given as marginal R2 (mR2). RESULTS P100-latency, pRNFL, GCIPL and LGN in patients differed from controls. Within patients, P100-latency was significantly associated with GCIPL (mR2 = 0.26), and less strongly with OR-WML (mR2 = 0.17), NAOR-FA (mR2 = 0.13) and pRNFL (mR2 = 0.08). In multivariate analysis, GCIPL and NAOR-FA remained significantly associated with P100-latency (mR2 = 0.41). In ON-patients, P100-latency was significantly associated with LGN volume (mR2 = -0.56). CONCLUSIONS P100-latency is affected by anterior and posterior visual pathway damage. In ON-patients, damage at the synapse-level (LGN) may additionally contribute to latency delay. SIGNIFICANCE Our findings corroborate post-chiasmatic contributions to the VEP-signal, which may relate to distinct pathophysiological mechanisms in MS.
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Affiliation(s)
- Athina Papadopoulou
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland
| | - Armanda Pfister
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Charidimos Tsagkas
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NIH), Bethesda, MD, USA
| | | | - Shaumiya Sellathurai
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland
| | - Marcus D'Souza
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland; Neurostatus AG, University Hospital of Basel, Basel, Switzerland
| | - Nuria Cerdá-Fuertes
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland; Neurostatus AG, University Hospital of Basel, Basel, Switzerland
| | - Konstantin Gugleta
- University Eye Clinic Basel, University Hospital Basel and University of Basel, Basel, Switzerland
| | | | - Mallar M Chakravarty
- Douglas Mental Health University Institute, Departments of Psychiatry and Biomedical Engineering (M.M.C.), McGill University, Montreal, University of Sherbrooke (M.D.), Canada
| | - Peter Fuhr
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Department of Clinical Research, University of Basel, Switzerland
| | - Ludwig Kappos
- Department of Clinical Research, University of Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland
| | - Cristina Granziera
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland; Translational Imaging in Neurology (ThINK) Basel, Department of Biomedical Engineering, University of Basel, Basel, Switzerland; Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel and University of Basel, Basel, Switzerland
| | - Stefano Magon
- Pharma Research and Early Development, Neuroscience and Rare Diseases Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland
| | | | - Martin Hardmeier
- Department of Neurology, University Hospital Basel, University of Basel, Basel, Switzerland.
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Péus D, Sellathurai S, Newcomb N, Tschopp K, Radeloff A. The Otoprotective Effect of Ear Cryotherapy: Systematic Review and Future Perspectives. Audiol Res 2022; 12:377-387. [PMID: 35892664 PMCID: PMC9326667 DOI: 10.3390/audiolres12040038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/20/2022] [Accepted: 06/30/2022] [Indexed: 11/16/2022] Open
Abstract
This systematic review investigates ear cooling and cryotherapy in the prevention and treatment of inner ear damage and disease, within the context of animal models and clinical studies. A literature search was carried out in the databases Pubmed and Cochrane Library. Ten studies were identified concerning the otoprotective properties of cryotherapy. Nine of these were rodent in vivo studies (mice, rats, gerbils, guinea pigs). One study involved human subjects and investigated cryotherapy in idiopathic sensorineural hearing loss. The studies were heterogeneous in their goals, methods, and the models used. Disorder models included ischemia and noise damage, ototoxicity (cisplatin and aminoglycoside), and CI-electrode insertion. All ten studies demonstrated significant cryotherapeutic otoprotection for their respective endpoints. No study revealed or expressly investigated otodestructive effects. While limited in number, all of the studies within the scope of the review demonstrated some degree of cryotherapeutic, otoprotective effect. These promising results support the conducting of further work to explore and refine the clinical applicability and impact of cryotherpeutics in otolaryngology.
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Affiliation(s)
- Dominik Péus
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
- Correspondence: ; Tel.: +49-441-2360
| | - Shaumiya Sellathurai
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
- Department of Biomedicine, University of Basel, 4001 Basel, Switzerland
| | - Nicolas Newcomb
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
- The Software Revolution, Inc., Kirkland, WA 98034, USA
| | - Kurt Tschopp
- Department of Otorhinolaryngology, Cantonal Hospital Baselland, 4410 Liestal, Switzerland; (S.S.); (K.T.)
| | - Andreas Radeloff
- Department of Otorhinolaryngology, University of Oldenburg, 26122 Oldenburg, Germany; (N.N.); (A.R.)
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