3
|
Argenziano G, Cavallieri F, Castellucci A, Fioravanti V, Di Rauso G, Gessani A, Campanini I, Merlo A, Napoli M, Grisanti S, Rossi J, Toschi G, Zini C, Ghidini A, Valzania F. Vestibular Hypofunction in ARSACS Syndrome: A Possible Pitfall in the Differential Diagnosis of Recessive Cerebellar and Afferent Ataxias. Neurol Clin Pract 2024; 14:e200239. [PMID: 38152064 PMCID: PMC10751013 DOI: 10.1212/cpj.0000000000200239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/15/2023] [Indexed: 12/29/2023]
Abstract
Objectives Autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS) is an early-onset ataxia characterized by cerebellar dysfunction, spasticity, and sensory-motor polyneuropathy due to variations in the SACS gene (13q11). To date, no studies have instrumentally assessed vestibular function in this condition. Methods We report a 36-year-old woman with diagnosis of ARSACS syndrome due to homozygous mutation (c.12232 C>T, p.Arg4078Ter) in the SACS gene. Neurologic examination showed spastic-ataxic gait, dysarthric speech, 4-limb ataxia, and spastic hypertonia with lower limb hyperreflexia. Results A vestibular instrumental evaluation including bedside oculomotor testing found gaze-evoked and rebound nystagmus on horizontal and vertical gaze, saccadic movements within normality ranges, saccadic pursuit, and slightly impaired visually enhanced vestibulo-ocular reflex (VVOR). A near-normal VOR suppression (VORS) was recorded. Neither head shakings, skull vibrations, nor supine positionings could evoke nystagmus. Finally, the video-head impulse test detected a symmetrical VOR impairment for all the semicircular canals (SCs), mostly involving the horizontal SCs, with corrective saccades in all planes. Discussion Vestibular hypofunction may be found in ARSACS syndrome and may represent a possible pitfall in the differential diagnosis of recessive cerebellar and afferent ataxias. In this setting, ARSACS syndrome should be considered in the differential diagnosis of CANVAS.
Collapse
Affiliation(s)
- Giacomo Argenziano
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Francesco Cavallieri
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Andrea Castellucci
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Valentina Fioravanti
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Giulia Di Rauso
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Annalisa Gessani
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Isabella Campanini
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Andrea Merlo
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Manuela Napoli
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Sara Grisanti
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Jessica Rossi
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Giulia Toschi
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Chiara Zini
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Angelo Ghidini
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| | - Franco Valzania
- Neurology Unit (GA, GDR), Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, Modena; Neurology Unit (GA, FC, VF, GDR, JR, GT, CZ, FV), Neuromotor and Rehabilitation Department; Otolaryngology Unit (AC, A. Ghidini), Azienda USL-IRCCS di Reggio Emilia; Neurology (A. Gessani), Neuroscience Head Neck Department, Azienda Ospedaliero-Universitaria di Modena; LAM-Motion Analysis Laboratory (IC, AM), Neuromotor and Rehabilitation Department; Neuroradiology Unit (MN), Azienda USL-IRCCS di Reggio Emilia; and Clinical and Experimental Medicine PhD Program (SG, JR), University of Modena and Reggio Emilia, Italy
| |
Collapse
|