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Baskan GN, Çelebisoy N. Central Positional Nystagmus Can Be the Sole Presentation of Cerebellar Nodulus Infarction. Neurologist 2024; 29:308-309. [PMID: 38845182 DOI: 10.1097/nrl.0000000000000575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
OBJECTIVES To draw attention to acute positional vertigo and central positional nystagmus (CPN) developing as the sole features of cerebellar nodulus infarction. BACKGROUND The cerebellar nodulus is vascularized by the medial branch of the posterior inferior cerebellar artery, which also supplies the uvula, tonsil, tuber, and pyramid of the vermis, and the inferior part of the cerebellar hemisphere, making isolated cerebellar nodulus infarction extremely rare. CPN occurs after a change in head position with respect to gravity and is caused by pathologies involving the vestibulo-cerebellar pathways. CPN is rarely seen in isolation. Additional neurological signs and ocular motor abnormalities are generally present. METHODS A 62-year-old man was admitted to the emergency department with acute-onset positional vertigo and CPN as the sole finding on examination. Cranial magnetic resonance imaging revealed an acute infarction involving the nodulus. Results: Infarcts restricted to nodulus can cause positional vertigo and CPN without any associated neurological signs or ocul ar motor abnormalities. CONCLUSION Though very rare, cerebellar nodulus stroke must be searched in patients with positional vertigo of acute onset and isolated CPN on examination.
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Affiliation(s)
- Gülcan Neşem Baskan
- Department of Neurology, Ege University Medical School, Bornova, Izmir, Turkey
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Martinez C, Wang Z, Zalazar G, Carmona S, Kattah J, Tarnutzer AA. Systematic Review and Meta-Analysis of the Diagnostic Accuracy of a Graded Gait and Truncal Instability Rating in Acutely Dizzy and Ataxic Patients. CEREBELLUM (LONDON, ENGLAND) 2024:10.1007/s12311-024-01718-6. [PMID: 38990511 DOI: 10.1007/s12311-024-01718-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/02/2024] [Indexed: 07/12/2024]
Abstract
BACKGROUND In patients presenting with acute prolonged vertigo and/or gait imbalance, the HINTS [Head-Impulse, Nystagmus, Test-of-Skew] are very valuable. However, their application may be limited by lack of training and absence of vertigo/nystagmus. Alternatively, a graded gait/truncal-instability (GTI, grade 0-3) rating may be applied. METHODS We performed a systematic search (MEDLINE/Embase) to identify studies reporting on the diagnostic accuracy of bedside examinations in adults with acute vestibular syndrome. Diagnostic test properties were calculated for findings using a random-effects model. Results were stratified by GTI-rating used. RESULTS We identified 6515 articles and included 18 studies (n = 1025 patients). Ischemic strokes (n = 665) and acute unilateral vestibulopathy (n = 306) were most frequent. Grade 2/3 GTI had moderate sensitivity (70.8% [95% confidence-interval (CI) = 59.3-82.3%]) and specificity (82.7 [71.6-93.8%]) for predicting a central cause, whereas grade 3 GTI had a lower sensitivity (44.0% [34.3-53.7%] and higher specificity (99.1% [98.0-100.0%]). In comparison, diagnostic accuracy of HINTS (sensitivity = 96.8% [94.8-98.8%]; specificity = 97.6% [95.3-99.9%]) was higher. When combining central nystagmus-patterns and grade 2/3 GTI, sensitivity was increased to 76.4% [71.3-81.6%] and specificity to 90.3% [84.3-96.3%], however, no random effects model could be used. Sensitivity was higher in studies using the GTI rating (grade 2/3) by Lee (2006) compared to the approach by Moon (2009) (73.8% [69.0-78.0%] vs. 57.4% [49.5-64.9%], p = 0.001). CONCLUSIONS In comparison to HINTS, the diagnostic accuracy of GTI is inferior. When combined with central nystagmus-patterns, diagnostic accuracy could be improved based on preliminary findings. GTI can be readily applied in the ED-setting and also in patients with acute imbalance syndrome.
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Affiliation(s)
| | - Zheyu Wang
- Division of Quantitative Sciences, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Guillermo Zalazar
- Hospital de San Luis, Fundación San Lucas Para La Neurociencia, Rosario, Argentina
| | - Sergio Carmona
- Fundación San Lucas Para La Neurosciencia, Rosario, Argentina
| | - Jorge Kattah
- University of Illinois College of Medicine, Peoria, IL, USA
| | - Alexander Andrea Tarnutzer
- Faculty of Medicine, University of Zurich, Zurich, Switzerland.
- Neurology, Cantonal Hospital of Baden, Baden, Switzerland.
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Tarnutzer AA, Edlow JA. Bedside Testing in Acute Vestibular Syndrome-Evaluating HINTS Plus and Beyond-A Critical Review. Audiol Res 2023; 13:670-685. [PMID: 37736940 PMCID: PMC10514811 DOI: 10.3390/audiolres13050059] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
Acute vertigo and dizziness are frequent presenting symptoms in patients in the emergency department. These symptoms, which can be subtle and transient, present diagnostic challenges because they can be caused by a broad range of conditions that cut across many specialties and organ systems. Previous work has emphasized the value of combining structured history taking and a targeted examination focusing on subtle oculomotor signs. In this review, we discuss various diagnostic bedside algorithms proposed for the acutely dizzy patient. We analyzed these different approaches by calculating their area-under-the-curve (ROC) characteristics and sensitivity/specificity. We found that the algorithms that incorporated structured history taking and the use of subtle oculomotor signs had the highest diagnostic accuracy. In fact, both the HINTS+ bedside exam and the STANDING algorithm can more accurately diagnose acute strokes than early (<24 to 48 h after symptom onset) MRI with diffusion-weighted imaging (DWI). An important caveat is that HINTS and STANDING require moderate training to achieve this accuracy. Therefore, for physicians who have not undergone adequate training, other approaches are needed. These other approaches (e.g., ABCD2 score, PCI score, and TriAGe+ score) rely on vascular risk factors, clinical symptoms, and focal neurologic findings. While these other scores are easier for frontline providers to use, their diagnostic accuracy is far lower than HINTS+ or STANDING. Therefore, a focus on providing dedicated training in HINTS+ or STANDING techniques to frontline clinicians will be key to improving diagnostic accuracy and avoiding unnecessary brain imaging.
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Affiliation(s)
- Alexander A. Tarnutzer
- Department of Neurology, Cantonal Hospital of Baden, 5404 Baden, Switzerland
- Faculty of Medicine, University of Zurich, 8006 Zurich, Switzerland
| | - Jonathan A. Edlow
- Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA;
- Emergency Medicine, Harvard Medical School, Boston, MA 02115, USA
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Rauwenhoff JCC, Bol Y, van Heugten CM, Batink T, Geusgens CAV, van den Hout AJHC, Smits P, Verwegen CRT, Visser A, Peeters F. Acceptance and commitment therapy for people with acquired brain injury: Rationale and description of the BrainACT treatment. Clin Rehabil 2023; 37:1011-1025. [PMID: 36750988 PMCID: PMC10291735 DOI: 10.1177/02692155231154124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 01/07/2023] [Indexed: 02/09/2023]
Abstract
BACKGROUND The treatment of anxiety and depressive symptoms following acquired brain injury is complex and more evidence-based treatment options are needed. We are currently evaluating the BrainACT intervention; acceptance and commitment therapy for people with acquired brain injury. RATIONALE This paper describes the theoretical underpinning, the development and content of BrainACT. Acceptance and commitment therapy focuses on the acceptance of feelings, thoughts and bodily sensations and on living a valued life, without fighting against what is lost. Since the thoughts that people with acquired brain injury can experience are often realistic or appropriate given their situation, this may be a suitable approach. THEORY INTO PRACTICE Existing evidence-based protocols were adapted for the needs and potential cognitive deficits after brain injury. General alterations are the use of visual materials, summaries and repetition. Acceptance and commitment therapy-specific adaptions include the Bus of Life metaphor as a recurrent exercise, shorter mindfulness exercises, simplified explanations, a focus on experiential exercises and the monitoring of committed actions. The intervention consists of eight one-hour sessions with a psychologist, experienced in acceptance and commitment therapy and in working with people with acquired brain injury. The order of the sessions, metaphors and exercises can be tailored to the needs of the patients. DISCUSSION Currently, the effectiveness and feasibility of the intervention is evaluated in a randomised controlled trial. The BrainACT intervention is expected to be a feasible and effective intervention for people with anxiety or depressive symptoms following acquired brain injury.
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Affiliation(s)
- Johanne CC Rauwenhoff
- School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
- Limburg Brain Injury Centre, Maastricht, The Netherlands
| | - Yvonne Bol
- Department of Clinical and Medical Psychology, Zuyderland Medical Centre, Sittard-Geleen/Heerlen, The Netherlands
| | - Caroline M van Heugten
- School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
- Limburg Brain Injury Centre, Maastricht, The Netherlands
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Tim Batink
- Faculty of Psychology and Educational Sciences, Open University, Heerlen, The Netherlands
| | - Chantal AV Geusgens
- Department of Clinical and Medical Psychology, Zuyderland Medical Centre, Sittard-Geleen/Heerlen, The Netherlands
| | - Anja JHC van den Hout
- Department of Clinical and Medical Psychology, Zuyderland Medical Centre, Sittard-Geleen/Heerlen, The Netherlands
| | - Peter Smits
- Department of Rehabilitation Medicine, Sint Maartenskliniek, Nijmegen, The Netherlands
| | | | - Annemarie Visser
- Department of Rehabilitation Medicine, Center for Rehabilitation, University Medical Centre Groningen, Haren, The Netherlands
| | - Frenk Peeters
- Department of Clinical Psychological Science, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, The Netherlands
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Lee SH, Kim JM, Kim JT, Tarnutzer AA. Video head impulse testing in patients with isolated (hemi)nodular infarction. Front Neurol 2023; 14:1124217. [PMID: 36814996 PMCID: PMC9939438 DOI: 10.3389/fneur.2023.1124217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/18/2023] [Indexed: 02/08/2023] Open
Abstract
Background Isolated (hemi)nodular strokes as underlying cause of acute dizziness are rare, thus there are still gaps of knowledge in the clinical presentation of affected patients. Clinical and experimental evidence has suggested that lesions involving the nodulus lead to various vestibulo-ocular deficits including prolonged velocity-storage, periodic-alternating nystagmus, positional nystagmus, abolished suppression of post-rotatory nystagmus by head-tilt and impaired verticality perception. At the bedside, the angular vestibulo-ocular reflex (aVOR), as assessed by the horizontal head-impulse test (HIT), has been reported to be normal, however quantitative assessments of all six semicircular canals are lacking. Objective The primary aim of this case series was to characterize the spectrum of clinical presentations in isolated (hemi)nodular strokes. Furthermore, based on preliminary observations, we hypothesized that the aVOR is within normal limits in isolated nodular strokes. Methods We retrospectively included patients with isolated (hemi)nodular stroke on diffusion-weighted MR-imaging from a prospective stroke-registry. All patients received a standardized bedside neuro-otological assessment and quantitative, video-based HIT (vHIT) of all six semicircular canals. Overall ratings of vHIT (normal vs. abnormal function) were performed independently by two reviewers and disagreements were resolved. Results Between January 2015 and December 2021 six patients with isolated nodular (n = 1) or heminodular (n = 5) ischemic stroke were included. Clinical presentation met diagnostic criteria for acute vestibular syndrome (AVS) in 5/6 patients and for episodic vestibular syndrome (EVS) in 1/6 patients. Ocular motor abnormalities observed included the presence of spontaneous horizontal nystagmus (n = 2), positional nystagmus (5/6), head-shaking nystagmus (3/6), skew deviation (n = 1), and moderate or severe truncal ataxia (5/6). Bedside HIT was normal in all patients and no gaze-evoked or periodic alternating nystagmus was observed. aVOR-gains were within normal range in all patients and overall aVOR-function as assessed by vHIT was rated as normal in all six patients. Conclusions Using quantitative, video-based testing of the horizontal and vertical aVOR, preserved integrity of the aVOR in (hemi)nodular strokes was confirmed, extending preliminary findings at the bedside. Furthermore, widespread deficits of both ocular stability, postural control and volitional eye movements were observed in our study cohort, being consistent with findings reported in previous studies.
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Affiliation(s)
- Seung-Han Lee
- Department of Neurology, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jae-Myung Kim
- Department of Neurology, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Joon-Tae Kim
- Department of Neurology, Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Alexander Andrea Tarnutzer
- Department of Neurology, Cantonal Hospital, Baden, Switzerland,Faculty of Medicine, University of Zurich, Zurich, Switzerland,*Correspondence: Alexander Andrea Tarnutzer ✉
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Yao K, Zu HB. Isolated transient vertigo due to TIA: challenge for diagnosis and therapy. J Neurol 2023; 270:769-779. [PMID: 36371598 DOI: 10.1007/s00415-022-11443-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/13/2022]
Abstract
As a prevalent vertigo disease in the clinic, isolated transient vertigo can present as a vertigo episode without focal signs and always free of symptoms on presentation. Previous studies showed a part of isolated transient vertigo events had a high risk of stroke during follow-up. However, how to discern posterior circulation ischemia become a great challenge for clinicians, especially in emergency, neurology, and ENT departments. Routine besides, hematological, and imaging examinations are often difficult provide a clear etiological diagnosis. Hence, this article reviews current knowledge about the epidemiology, risk factors, offending lesions, and clinical manifestation of transient ischemic attack (TIA) presenting as isolated transient vertigo. In addition, we summarize several advances in besides examinations, serum biomarkers, and imaging technologies to better identify stroke events. Finally, the current situation of therapy was briefly retrospected. Here we present a critical clinical puzzle that needs to be solved in the future. Of note, there is a still lack of high-quality studies in this field. The article reviews the keys to the diagnosis of isolated transient vertigo due to TIA and provides us with more methods to screen for high-risk stroke populations.
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Affiliation(s)
- Kai Yao
- Department of Neurology, Jinshan Hospital Affiliated to Fudan University, No. 1508 Longhang Road, Jinshan District, Shanghai, 201508, China
| | - Heng-Bing Zu
- Department of Neurology, Jinshan Hospital Affiliated to Fudan University, No. 1508 Longhang Road, Jinshan District, Shanghai, 201508, China.
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7
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Scale for Ocular motor Disorders in Ataxia (SODA). J Neurol Sci 2022; 443:120472. [PMID: 36403298 DOI: 10.1016/j.jns.2022.120472] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/28/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
Abstract
Eye movements are fundamental diagnostic and progression markers of various neurological diseases, including those affecting the cerebellum. Despite the high prevalence of abnormal eye movements in patients with cerebellar disorders, the traditional rating scales do not focus on abnormal eye movements. We formed a consortium of neurologists focusing on cerebellar disorders. The consortium aimed to design and validate a novel Scale for Ocular motor Disorders in Ataxia (SODA). The primary purpose of the scale is to determine the extent of ocular motor deficits due to various phenomenologies. A higher score on the scale would suggest a broader range of eye movement deficits. The scale was designed such that it is easy to implement by non-specialized neurological care providers. The scale was not designed to measure each ocular motor dysfunction's severity objectively. Our validation studies revealed that the scale reliably measured the extent of saccade abnormalities and nystagmus. We found a lack of correlation between the total SODA score and the total International Cooperative Ataxia Rating Scale (ICARS), Scale for Assessment and Rating of Ataxia (SARA), or Brief Ataxia Rating Scale (BARS). One explanation is that conventionally reported scales are not dedicated to eye movement disorders; and when present, the measure of ocular motor function is only one subsection of the ataxia rating scales. It is also possible that the severity of ataxias does not correlate with eye movement abnormalities. Nevertheless, the SODA met the consortium's primary goal: to prepare a simple outcome measure that can identify ocular motor dysfunction in patients with cerebellar ataxia.
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Lee J, Park JY, Shin JE, Kim CH. Direction-changing spontaneous nystagmus in patients with dizziness. Eur Arch Otorhinolaryngol 2022; 280:2725-2733. [PMID: 36454383 DOI: 10.1007/s00405-022-07761-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 11/21/2022] [Indexed: 12/04/2022]
Abstract
PURPOSE The present study aimed to investigate the clinical features of patients with direction-changing spontaneous nystagmus (DCSN) and gain insight into its underlying mechanisms. METHODS Medical records and vestibular function test results collected in our dizziness clinic between February 2013 and February 2020 were retrospectively reviewed. Spontaneous nystagmus was recorded while sitting upright using videonystagmography for 2 min to confirm the spontaneous changes in nystagmus direction. Causative disease diagnoses were based on the patients' clinical history, audiometry results, vestibular function tests, and imaging studies. RESULTS Of 4786 patients, DCSN was observed in 41 (0.86%). Causative disease diagnoses included vestibular neuritis (n = 9), lateral semicircular canal cupulopathy (n = 9), cerebellopontine angle tumor (n = 8), vestibular paroxysmia (n = 2), vestibular migraine (n = 2), vestibular nucleus infarction (n = 1), sudden sensorineural hearing loss with vertigo (n = 2), Meniere's disease (n = 2), Ramsay Hunt syndrome (n = 1), labyrinthine fistula due to middle ear cholesteatoma (n = 1), lateral semicircular canal dysplasia (n = 1), post tympanomastoidectomy dizziness (n = 1), and head trauma (n = 2). CONCLUSIONS Although the periodicity of DCSN could not be determined because of insufficiently long observation times, it was observed in various central and peripheral vestibulopathies. Careful examination of spontaneous nystagmus over a sufficient period may ensure the detection of DCSN when evaluating dizziness.
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Fracica E, Hale D, Gold DR. Diagnosing and localizing the acute vestibular syndrome - Beyond the HINTS exam. J Neurol Sci 2022; 442:120451. [PMID: 36270149 DOI: 10.1016/j.jns.2022.120451] [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: 06/20/2022] [Revised: 09/11/2022] [Accepted: 10/02/2022] [Indexed: 10/31/2022]
Abstract
When assessing the acutely dizzy patient, the HINTS 'Plus' (Head Impulse, Nystagmus, Test of Skew, 'Plus' a bedside assessment of auditory function) exam is a crucial component of the bedside exam. However, there are additional ocular motor findings that can help the clinician distinguish peripheral from central etiologies and enable accurate localization, especially when the patient has acute dizziness, vertigo and/or imbalance but without spontaneous nystagmus. We will review the literature on these findings which are 'beyond HINTS' and include saccades/ocular lateropulsion, smooth pursuit, and provocative maneuvers including head-shaking and positional testing (not part of the HINTS exam). Additionally, we will expound on the localizing value of nystagmus, ocular alignment and the ocular tilt reaction (parts of the HINTS exam). The paper has been organized neuroanatomically, based on brainstem and cerebellar structures that have been reported to cause the acute vestibular syndrome.
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Affiliation(s)
- Elizabeth Fracica
- The Johns Hopkins Hospital, Department of Neurology, United States of America.
| | - David Hale
- The Johns Hopkins Hospital, Department of Neurology, United States of America
| | - Daniel R Gold
- The Johns Hopkins Hospital, Department of Neurology, United States of America; The Johns Hopkins Hospital, Department of Neurology, Division of Neuro-Visual & Vestibular Disorders, United States of America
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Strupp M, Bisdorff A, Furman J, Hornibrook J, Jahn K, Maire R, Newman-Toker D, Magnusson M. Acute unilateral vestibulopathy/vestibular neuritis: Diagnostic criteria. J Vestib Res 2022; 32:389-406. [PMID: 35723133 PMCID: PMC9661346 DOI: 10.3233/ves-220201] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This paper describes the diagnostic criteria for Acute Unilateral Vestibulopathy (AUVP), a synonym for vestibular neuritis, as defined by the Committee for the Classification of Vestibular Disorders of the Bárány Society. AUVP manifests as an acute vestibular syndrome due to an acute unilateral loss of peripheral vestibular function without evidence for acute central or acute audiological symptoms or signs. This implies that the diagnosis of AUVP is based on the patient history, bedside examination, and, if necessary, laboratory evaluation. The leading symptom is an acute or rarely subacute onset of spinning or non-spinning vertigo with unsteadiness, nausea/vomiting and/or oscillopsia. A leading clinical sign is a spontaneous peripheral vestibular nystagmus, which is direction-fixed and enhanced by removal of visual fixation with a trajectory appropriate to the semicircular canal afferents involved (generally horizontal-torsional). The diagnostic criteria were classified by the committee for four categories: 1. "Acute Unilateral Vestibulopathy", 2. "Acute Unilateral Vestibulopathy in Evolution", 3. "Probable Acute Unilateral Vestibulopathy" and 4. "History of Acute Unilateral Vestibulopathy". The specific diagnostic criteria for these are as follows:"Acute Unilateral Vestibulopathy": A) Acute or subacute onset of sustained spinning or non-spinning vertigo (i.e., an acute vestibular syndrome) of moderate to severe intensity with symptoms lasting for at least 24 hours. B) Spontaneous peripheral vestibular nystagmus with a trajectory appropriate to the semicircular canal afferents involved, generally horizontal-torsional, direction-fixed, and enhanced by removal of visual fixation. C) Unambiguous evidence of reduced VOR function on the side opposite the direction of the fast phase of the spontaneous nystagmus. D) No evidence for acute central neurological, otological or audiological symptoms. E) No acute central neurological signs, namely no central ocular motor or central vestibular signs, in particular no pronounced skew deviation, no gaze-evoked nystagmus, and no acute audiologic or otological signs. F) Not better accounted for by another disease or disorder."Acute Unilateral Vestibulopathy in Evolution": A) Acute or subacute onset of sustained spinning or non-spinning vertigo with continuous symptoms for more than 3 hours, but not yet lasting for at least 24 h hours, when patient is seen; B) - F) as above. This category is useful for diagnostic reasons to differentiate from acute central vestibular syndromes, to initiate specific treatments, and for research to include patients in clinical studies."Probable Acute Unilateral Vestibulopathy": Identical to AUVP except that the unilateral VOR deficit is not clearly observed or documented."History of acute unilateral vestibulopathy": A) History of acute or subacute onset of vertigo lasting at least 24 hours and slowly decreasing in intensity. B) No history of simultaneous acute audiological or central neurological symptoms. C) Unambiguous evidence of unilaterally reduced VOR function. D) No history of simultaneous acute central neurological signs, namely no central ocular motor or central vestibular signs and no acute audiological or otological signs. E) Not better accounted for by another disease or disorder. This category allows a diagnosis in patients presenting with a unilateral peripheral vestibular deficit and a history of an acute vestibular syndrome who are examined well after the acute phase.It is important to note that there is no definite test for AUVP. Therefore, its diagnosis requires the exclusion of central lesions as well as a variety of other peripheral vestibular disorders. Finally, this consensus paper will discuss other aspects of AUVP such as etiology, pathophysiology and laboratory examinations if they are directly relevant to the classification criteria.
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Affiliation(s)
- Michael Strupp
- Department of Neurology and German Center for Vertigo and Balance Disorders, Hospital of the Ludwig Maximilians University, Munich, Marchioninistrasse, Munich, Germany,Corresponding author: Michael Strupp, MD, FRCP, FAAN, FANA, FEAN, Dept. of Neurology and German Center for Vertigo and Balance Disorders, Hospital of the Ludwig Maximilians University, Munich, Marchioninistrasse 15, 81377 Munich, Germany. Tel.: +49 89 44007 3678; Fax: +49 89 44007 6673; E-mail:
| | - Alexandre Bisdorff
- Clinique du Vertige, Centre Hospitalier Emile Mayrisch, Esch-sur-Alzette, Luxembourg
| | - Joseph Furman
- Department of Otolaryngology, Neurology, Bioengineering and Physical Therapy, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Jeremy Hornibrook
- Departments of Otolaryngology - Head and Neck Surgery, Christchurch Hospital, University of Canterbury and University of Otago, Christchurch, New Zealand
| | - Klaus Jahn
- Department of Neurology, Schoen Clinic Bad Aibling, Bad Aibling, Germany and German Center for Vertigo and Balance Disorders, Ludwig-Maximilians University, Campus Grosshadern, Munich, Germany
| | - Raphael Maire
- Department of Otorhinolaryngology/Head & Neck Surgery, Lausanne University Hospital, Lausanne, Switzerland
| | - David Newman-Toker
- Ophthalmology, Otolaryngology and Emergency Medicine, The Johns Hopkins University School of Medicine, Johns Hopkins Hospital, Baltimore, MD, USA
| | - Måns Magnusson
- Department of Otorhinolaryngology, Lund University, Lund, Sweden
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Kattah JC, Zalazar G, Martinez C, Carmona S. Truncal ataxia and the vestibulo spinal reflex. A historical review. J Neurol Sci 2022; 441:120375. [PMID: 35988348 DOI: 10.1016/j.jns.2022.120375] [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: 03/31/2022] [Revised: 07/03/2022] [Accepted: 07/31/2022] [Indexed: 10/15/2022]
Abstract
The vestibulospinal pathway was described many years ago. Along with it, the vestibulospinal signs that are used for the diagnosis of vestibular disorders were described. In this work we summarize the history of the vestibulospinal pathway, the classic signs and the new signs that can be used in the diagnosis of vestibular disorders, paying special attention to truncal ataxia as a useful element to differentiate central from peripheral pathology.
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Affiliation(s)
- Jorge C Kattah
- Professor and Head of Neurology and Neurosurgery, University of Illinois College of Medicine. Peoria, IL, United States
| | - Guillermo Zalazar
- Neurologist, Hospital Central Dr. Ramón Carrillo, San Luis, Argentina.
| | | | - Sergio Carmona
- Neuro-otologist, Fundación San Lucas para la Neurociencia, Rosario, Santa Fe, Argentina
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12
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Kim JS, Newman-Toker DE, Kerber KA, Jahn K, Bertholon P, Waterston J, Lee H, Bisdorff A, Strupp M. Vascular vertigo and dizziness: Diagnostic criteria. J Vestib Res 2022; 32:205-222. [PMID: 35367974 PMCID: PMC9249306 DOI: 10.3233/ves-210169] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This paper presents diagnostic criteria for vascular vertigo and dizziness as formulated by the Committee for the Classification of Vestibular Disorders of the Bárány Society. The classification includes vertigo/dizziness due to stroke or transient ischemic attack as well as isolated labyrinthine infarction/hemorrhage, and vertebral artery compression syndrome. Vertigo and dizziness are among the most common symptoms of posterior circulation strokes. Vascular vertigo/dizziness may be acute and prolonged (≥24 hours) or transient (minutes to < 24 hours). Vascular vertigo/dizziness should be considered in patients who present with acute vestibular symptoms and additional central neurological symptoms and signs, including central HINTS signs (normal head-impulse test, direction-changing gaze-evoked nystagmus, or pronounced skew deviation), particularly in the presence of vascular risk factors. Isolated labyrinthine infarction does not have a confirmatory test, but should be considered in individuals at increased risk of stroke and can be presumed in cases of acute unilateral vestibular loss if accompanied or followed within 30 days by an ischemic stroke in the anterior inferior cerebellar artery territory. For diagnosis of vertebral artery compression syndrome, typical symptoms and signs in combination with imaging or sonographic documentation of vascular compromise are required.
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Affiliation(s)
- Ji-Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - David E Newman-Toker
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Kevin A Kerber
- Department of Neurology, University of Michigan Health System, Ann Arbor, USA
| | - Klaus Jahn
- Department of Neurology Schoen Clinic Bad Aibling and German Center for Vertigo and Balance Disorders, Ludwig Maximilians University, Munich, Germany
| | | | - John Waterston
- Monash Department of Neuroscience, Alfred Hospital, Melbourne, Australia
| | - Hyung Lee
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Alexandre Bisdorff
- Department of Neurology, Centre Hospitalier Emile Mayrisch, Esch-sur-Alzette, Luxembourg
| | - Michael Strupp
- Department of Neurology and German Center for Vertigo and Balance Disorders, Ludwig Maximilians University, Munich, Germany
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13
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Vertebrobasilar Disease. Stroke 2022. [DOI: 10.1016/b978-0-323-69424-7.00026-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Direction-changing spontaneous nystagmus in cerebellopontine angle tumour. J Clin Neurosci 2021; 95:118-122. [PMID: 34929634 DOI: 10.1016/j.jocn.2021.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/30/2021] [Accepted: 12/01/2021] [Indexed: 11/21/2022]
Abstract
The most common symptoms of tumours involving the cerebellopontine angle (CPA) are unilateral sensorineural hearing loss, dizziness, and asymmetric tinnitus. While the clinical manifestations have been well documented in previous studies, the nystagmus findings in these patients have not been thoroughly investigated yet. This study aimed to investigate the incidence of direction-changing spontaneous nystagmus in patients with CPA tumours, evaluate their radiologic characteristics, and gain insight into the mechanisms underlying nystagmus. Direction-changing spontaneous nystagmus was observed in 6 out of 83 patients (7%) with CPA tumours during the 7-year period. Temporal bone magnetic resonance imaging findings revealed the presence of an intrameatal mass in CPA tumours in all six patients with direction-changing spontaneous nystagmus. Vestibular schwannomas were confined within the internal auditory meatus in four patients, and petroclival meningiomas extended into the internal auditory meatus in two patients. The mechanism of direction-changing spontaneous nystagmus may be explained as paroxysmal secondary central hyperactivity in the vestibular nucleus due to the long-standing pressure effect in the vestibular nerve by tumours, or by ephaptic discharges in the vestibular nerve.
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15
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Bery AK, Wang CF, Gold DR, Chang TP. The fixation suppression test can uncover vertical nystagmus of central origin in some patients with dizziness. Neurol Sci 2021; 42:5343-5352. [PMID: 34698943 DOI: 10.1007/s10072-021-05676-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 10/15/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Identifying dangerous causes of dizziness is a challenging task for neurologists, as it requires interpretation of subtle bedside exam findings, which become even more subtle with time. Nystagmus can be instrumental in differentiating peripheral from central vestibular disorders. Conventional teaching is that peripheral vestibular nystagmus is accentuated by removal of visual fixation. We sought to systematically test the hypothesis that, in some cases, vertical nystagmus due to central vestibular disorders may also be easier to identify when fixation is removed. METHODS To identify patients with vertical nystagmus, we retrospectively reviewed clinical, MRI, and VNG data of consecutive patients undergoing VNG in our vestibular clinic over a 9-month period. We analyzed clinical features, bedside neuro-otological examination, MRI results, and VNG findings in fixation as well as those with fixation removed. RESULTS Two hundred and fourteen charts were reviewed. Twenty-six patients had vertical nystagmus with fixation removed on VNG. Only three (11.5%) of these patients had vertical nystagmus apparent with fixation (and only two had nystagmus observed clearly at the bedside with the unaided eye). Thirteen (50%) of the patients had posterior fossa lesions on MRI and eight of the rest (30.8%) were diagnosed with central vestibular disorders. Of the 13 patients with MRI-confirmed lesions, 3 patients (23.1%) had no neurological signs or conventional bedside oculomotor signs; in these cases, vertical nystagmus without fixation was the only sign of a central lesion. CONCLUSIONS Our findings go against conventional teaching and show that removing fixation can uncover subtle vertical nystagmus due to central vestibular disease, particularly from focal or chronic lesions.
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Affiliation(s)
- Anand K Bery
- Division of Neurology, Department of Medicine, University of Ottawa, Ottawa, Canada
| | - Ching-Fu Wang
- Department of Biomedical Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.,Neurobit Technologies Co., Ltd., Taipei, Taiwan
| | - Daniel R Gold
- Department of Neurology, Ophthalmology, Neurosurgery, Otolaryngology - Head & Neck Surgery, Emergency Medicine, and Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tzu-Pu Chang
- Department of Neurology/Neuro-medical Scientific Center, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, No.88, Sec. 1, Fengxing Rd., Tanzi Dist., Taichung, 427, Taiwan. .,Department of Neurology, School of Medicine, Tzu Chi University, Hualien, Taiwan.
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16
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Collía Fernández A, Huete Antón B, García-Moncó JC. Progressive Ataxia and Downbeat Nystagmus in an Adult. JAMA Neurol 2021; 78:1018-1019. [PMID: 33999117 DOI: 10.1001/jamaneurol.2021.1205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
| | - Begoña Huete Antón
- Osakidetza Basque Health Service, Department of Neurology, Basurto University Hospital, Bilbao, Spain
| | - Juan Carlos García-Moncó
- Osakidetza Basque Health Service, Department of Neurology, Basurto University Hospital, Bilbao, Spain
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17
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Isolated cerebellar nodulus infarction: Two case reports and literature review. J Clin Neurosci 2021; 89:161-164. [PMID: 34119262 DOI: 10.1016/j.jocn.2021.05.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Isolated cerebellar nodulus infarction (ICNI) is rare and has great clinical similarity with acute peripheral vestibulopathy (APV), from which it is difficult to distinguish. We report two cases of ICNI followed by a literature review to identify the discriminant clinical elements that differentiate ICNI from APV. METHODS We describe in detail our 2 cases. Besides, a literature search in Medline via PubMed and Scopus was performed up to May 17, 2020. Clinical characteristics, mainly of well-described cases, were extracted and analyzed. RESULTS Our search yielded 43 total publications, among which 13 were selected, including 23 patients. Spontaneous or positional rotatory vertigo with unidirectional spontaneous horizontal nystagmus, associated with the postural imbalance and unilateral lateropulsion or fall on Romberg's test, was the most common clinical picture. According to our literature review, the discriminant clinical elements which differentiate ICNI from APV were direction-changing gaze-evoked nystagmus, bilateral lateropulsion or fall on Romberg's test, and normal horizontal head impulse test. Our two patients reported a positional fleeting abnormal visual perception of spatial orientation of objects. We proposed this symptom as a discriminant clinical element. CONCLUSION The ICNI constitutes a difficult differential diagnosis of APV. Through our two patients reported here, we proposed a supplementary discriminant symptom helpful for the clinical diagnosis.
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18
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Zwergal A, Möhwald K, Salazar López E, Hadzhikolev H, Brandt T, Jahn K, Dieterich M. A Prospective Analysis of Lesion-Symptom Relationships in Acute Vestibular and Ocular Motor Stroke. Front Neurol 2020; 11:822. [PMID: 32849250 PMCID: PMC7424024 DOI: 10.3389/fneur.2020.00822] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 06/30/2020] [Indexed: 12/17/2022] Open
Abstract
Background: Diagnosing stroke as a cause of acute vertigo, dizziness, or double vision remains a challenge, because symptom characteristics can be variable. The purpose of this study was to prospectively investigate lesion-symptom relationships in patients with acute vestibular or ocular motor stroke. Methods: Three hundred and fifty one patients with acute and isolated vestibular or ocular motor symptoms of unclear etiology were enrolled in the EMVERT lesion trial. Symptom quality was assessed by the chief complaint (vertigo, dizziness, double vision), symptom intensity by the visual analog scale, functional impairment by EQ-5D-5L, and symptom duration by daily rating. Acute vestibular and ocular motor signs were registered by videooculography. A standardized MRI (DWI-/FLAIR-/T2-/T2*-/3D-T1-weighted sequences) was recorded within 7 days of symptom onset. MRIs with DWI lesions were further processed for voxel-based lesion-symptom mapping (VLSM). Results: In 47 patients, MRI depicted an acute unilateral stroke (13.4%). The chief complaints were dizziness (42.5%), vertigo (40.4%) and double vision (17.0%). Lesions in patients with vertigo or dizziness showed a large overlap in the cerebellar hemisphere. VLSM indicated that strokes in the medial cerebellar layers 7b, 8, 9 were associated with vertigo, strokes in the lateral cerebellar layer 8, crus 1, 2 with dizziness, and pontomesencephalic strokes with double vision. Symptom intensity and duration varied largely between patients. Higher symptom intensity and longer duration were associated with medial cerebellar lesions. Hemispheric lesions of the cortex were rare and presented with milder symptoms of shorter duration. Conclusions: Prospective evaluation of patients with acute vestibular or ocular motor stroke revealed that symptom quality, intensity and duration were not suited to differentiating peripheral from central etiologies. Lesions in the lateral cerebellum, thalamus, or cortex presented with unspecific, mild and transient symptoms prone to being misdiagnosed.
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Affiliation(s)
- Andreas Zwergal
- Department of Neurology, University Hospital, LMU Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany
| | - Ken Möhwald
- Department of Neurology, University Hospital, LMU Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany
| | - Elvira Salazar López
- Department of Neurology, University Hospital, LMU Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany.,Department of Human Movement Science, Technical University of Munich, Munich, Germany
| | - Hristo Hadzhikolev
- Department of Neurology, University Hospital, LMU Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany
| | - Thomas Brandt
- German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany.,Clinical Neurosciences, LMU Munich, Munich, Germany
| | - Klaus Jahn
- German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany.,Department of Neurology, Schön Klinik Bad Aibling, Bad Aibling, Germany
| | - Marianne Dieterich
- Department of Neurology, University Hospital, LMU Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, DSGZ, LMU Munich, Munich, Germany.,Munich Cluster of Systems Neurology, SyNergy, Munich, Germany
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19
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Lee SH, Kim JM, Schuknecht B, Tarnutzer AA. Vestibular and Ocular Motor Properties in Lateral Medullary Stroke Critically Depend on the Level of the Medullary Lesion. Front Neurol 2020; 11:390. [PMID: 32655466 PMCID: PMC7325917 DOI: 10.3389/fneur.2020.00390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 04/17/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Lateral medullary stroke (LMS) results in a characteristic pattern of brainstem signs including ocular motor and vestibular deficits. Thus, an impaired angular vestibulo-ocular reflex (aVOR) may be found if the vestibular nuclei are affected. Objective: We aimed to characterize the frequency and pattern of vestibular and ocular-motor deficits in patients with LMS. Methods: Patients with MR-confirmed acute/subacute unilateral LMS from a stroke registry were included and a bedside neuro-otological examination was performed. Video-oculography and video-based head-impulse testing (vHIT) was obtained and semicircular canal function was determined. The lesion location/extension as seen on MRI was rated and involvement of the vestibular nuclei was judged. Results: Seventeen patients with LMS (age = 59.4 ± 14.3 years) were included. All patients had positive H.I.N.T.S. vHIT showed mild-to-moderate aVOR impairments in three patients (ipsilesional = 1; ipsilesional and contralesional = 1; contralesional = 1). Spontaneous nystagmus (n = 10/15 patients) was more often beating contralesionally than ipsilesionally (6 vs. 3) and was accompanied by upbeat nystagmus in four patients. Head-shaking nystagmus was noted in seven subjects, ipsilesionally beating in six and down-beating in one. On brain MRI, damage of the most caudal parts of the medial and/or inferior vestibular nucleus was noted in 13 patients. Only those two patients with lesions affecting the rostral medulla oblongata demonstrated an ipsilaterally impaired aVOR. Conclusions: While subtle ocular motor signs pointed to damage of the central–vestibular pathways in all 17 patients, aVOR deficits were infrequent, restricted to those patients with rostral medullary lesions and, if present, mild to moderate only. This can be explained by lesions located too far caudally and too far ventrally to substantially affect the vestibular nuclei.
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Affiliation(s)
- Seung-Han Lee
- Department of Neurology, Chonnam National University Hospital and Chonnam National University Medical School, Gwangju, South Korea
| | - Jae-Myung Kim
- Department of Neurology, Chonnam National University Hospital and Chonnam National University Medical School, Gwangju, South Korea
| | - Bernhard Schuknecht
- Medical Radiological Institute, Zurich, Switzerland.,Faculty of Medicine, University of Zurich, Zurich, Switzerland
| | - Alexander Andrea Tarnutzer
- Faculty of Medicine, University of Zurich, Zurich, Switzerland.,Neurology, Cantonal Hospital of Baden, Baden, Switzerland
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20
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Romano F, Bockisch CJ, Schuknecht B, Bertolini G, Tarnutzer AA. Asymmetry in Gaze-Holding Impairment in Acute Unilateral Ischemic Cerebellar Lesions Critically Depends on the Involvement of the Caudal Vermis and the Dentate Nucleus. THE CEREBELLUM 2020; 20:768-779. [DOI: 10.1007/s12311-020-01141-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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21
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Kim JS. When the Room Is Spinning: Experience of Vestibular Neuritis by a Neurotologist. Front Neurol 2020; 11:157. [PMID: 32194499 PMCID: PMC7062794 DOI: 10.3389/fneur.2020.00157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/19/2020] [Indexed: 01/22/2023] Open
Abstract
Vestibular neuritis (VN) is the most common cause of acute prolonged spontaneous vertigo, and is characterized by acute unilateral vestibular hypofunction, probably due to inflammation of the vestibular nerve. VN is diagnosed at the bedside when there is spontaneous horizontal-torsional nystagmus beating away from the side of the lesion, abnormal head impulse tests for the semicircular canals involved on the lesion side, and when other neurological symptoms and signs are absent. Here, as a neuro-otologist, I describe my experience during an attack of VN and discuss how it may help physicians to better understand why and what a patient feels during attacks of vertigo.
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Affiliation(s)
- Ji-Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, South Korea
- Department of Neurology, Dizziness Center, Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam-si, South Korea
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22
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Abstract
The cerebellum works as a network hub for optimizing eye movements through its mutual connections with the brainstem and beyond. Here, we review three key areas in the cerebellum that are related to the control of eye movements: (1) the flocculus/paraflocculus (tonsil) complex, primarily for high-frequency, transient vestibular responses, and also for smooth pursuit maintenance and steady gaze holding; (2) the nodulus/ventral uvula, primarily for low-frequency, sustained vestibular responses; and (3) the dorsal vermis/posterior fastigial nucleus, primarily for the accuracy of saccades. Although there is no absolute compartmentalization of function within the three major ocular motor areas in the cerebellum, the structural-functional approach provides a framework for assessing ocular motor performance in patients with disease that involves the cerebellum or the brainstem.
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23
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Park E, Lee SU, Kim HJ, Choi JY, Im GJ, Yu S, Kim JS. Neuro-Behçet's Disease Presenting as Isolated Vestibular Syndrome. J Clin Neurol 2020; 16:499-501. [PMID: 32657074 PMCID: PMC7354970 DOI: 10.3988/jcn.2020.16.3.499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/03/2020] [Accepted: 04/03/2020] [Indexed: 11/23/2022] Open
Affiliation(s)
- Euyhyun Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University Medical Center, Seoul, Korea
| | - Sun Uk Lee
- Department of Neurology, Korea University Medical Center, Seoul, Korea.,Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.
| | - Hyo Jung Kim
- Research Administration Team, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jeong Yoon Choi
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.,Dizziness Center, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Gi Jung Im
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University Medical Center, Seoul, Korea
| | - Sungwook Yu
- Department of Neurology, Korea University Medical Center, Seoul, Korea.,Department of Neurology, Korea University College of Medicine, Seoul, Korea
| | - Ji Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.,Dizziness Center, Seoul National University Bundang Hospital, Seongnam, Korea
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24
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Chang TP, Winnick AA, Hsu YC, Sung PY, Schubert MC. The bucket test differentiates patients with MRI confirmed brainstem/cerebellar lesions from patients having migraine and dizziness alone. BMC Neurol 2019; 19:219. [PMID: 31481007 PMCID: PMC6720090 DOI: 10.1186/s12883-019-1442-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022] Open
Abstract
Background Amongst the most challenging diagnostic dilemmas managing patients with vestibular symptoms (i.e. vertigo, nausea, imbalance) is differentiating dangerous central vestibular disorders from benign causes. Migraine has long been recognized as one of the most common causes of vestibular symptoms, but the clinical hallmarks of vestibular migraine are notoriously inconsistent and thus the diagnosis is difficult to confirm. Here we conducted a prospective study investigating the sensitivity and specificity of combining standard vestibular and neurological examinations to determine how well central vestibular disorders (CVD) were distinguishable from vestibular migraine (VM). Method Twenty-seven symptomatic patients diagnosed with CVD and 36 symptomatic patients with VM underwent brain imaging and clinical assessments including; 1) SVV bucket test, 2) ABCD2, 3) headache/vertigo history, 4) presence of focal neurological signs, 5) nystagmus, and 6) clinical head impulse testing. Results Mean absolute SVV deviations measured by bucket testing in CVD and VM were 4.8 ± 4.1° and 0.7 ± 1.0°, respectively. The abnormal rate of SVV deviations (> 2.3°) in CVD was significantly higher than VM (p < 0.001). Using the bucket test alone to differentiate CVD from VM, sensitivity was 74.1%, specificity 91.7%, positive likelihood ratio (LR+) 8.9, and negative likelihood ratio (LR-) 0.3. However, when we combined the SVV results with the clinical exam assessing gaze stability (nystagmus) with an abnormal focal neurological exam, the sensitivity (92.6%) and specificity (88.9%) were optimized (LR+ (8.3), LR- (0.08)). Conclusion The SVV bucket test is a useful clinical test to distinguish CVD from VM, particularly when interpreted along with the results of a focal neurological exam and clinical exam for nystagmus. Electronic supplementary material The online version of this article (10.1186/s12883-019-1442-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tzu-Pu Chang
- Department of Neurology/Neuro-medical Scientific Center, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung City, Taiwan.,Department of Neurology, Tzu Chi University, Hualien, Taiwan
| | - Ariel A Winnick
- Soroka University Hospital and Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yung-Chu Hsu
- Division of Neurology, Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Pi-Yu Sung
- Department of Physical Medicine and Rehabilitation, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung City, Taiwan
| | - Michael C Schubert
- Laboratory of Vestibular NeuroAdaptation, Department of Otolaryngology - Head and Neck Surgery, Johns Hopkins University, Baltimore, MD, 21205, USA. .,Department of Physical Medicine and Rehabilitation, Johns Hopkins University, Baltimore, MD, 21205, USA.
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25
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Aperiodic alternating nystagmus in isolated vestibular nucleus infarction. J Neurol 2019; 266:2875-2877. [PMID: 31410550 DOI: 10.1007/s00415-019-09504-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/08/2019] [Indexed: 10/26/2022]
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26
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Beh SC. Horizontal Direction-Changing Positional Nystagmus and Vertigo: A Case of Vestibular Migraine Masquerading as Horizontal Canal BPPV. Headache 2019; 58:1113-1117. [PMID: 30152162 DOI: 10.1111/head.13356] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2018] [Indexed: 11/28/2022]
Abstract
Episodic positional vertigo is typically due to benign paroxysmal positional vertigo (BPPV) but may also be a manifestation of vestibular migraine. Distinguishing vestibular migraine from BPPV is essential since the treatment of each disorder is markedly different. The 31-month clinical course of a 41-year-old woman with vestibular migraine causing recurrent positional vertigo is described. During vestibular migraine attacks, she developed left-beating nystagmus in the upright position with removal of fixation, and geotropic horizontal nystagmus during the supine roll test. Interictally, her exam demonstrated positional apogeotropic horizontal nystagmus with the supine roll test, more intense in the supine head left position. Her vestibular migraine was successfully controlled with topiramate and eletriptan.
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Affiliation(s)
- Shin C Beh
- Department of Neurology & Neurotherapeutics, Division of Headache Medicine, University of Texas Southwestern Medical Center at Dallas, Dallas, TX, USA
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27
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Choi JY, Glasauer S, Kim JH, Zee DS, Kim JS. Characteristics and mechanism of apogeotropic central positional nystagmus. Brain 2019; 141:762-775. [PMID: 29373699 DOI: 10.1093/brain/awx381] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 11/23/2017] [Indexed: 11/12/2022] Open
Abstract
Here we characterize persistent apogeotropic type of central positional nystagmus, and compare it with the apogeotropic nystagmus of benign paroxysmal positional vertigo involving the lateral canal. Nystagmus was recorded in 27 patients with apogeotropic type of central positional nystagmus (22 with unilateral and five with diffuse cerebellar lesions) and 20 patients with apogeotropic nystagmus of benign paroxysmal positional vertigo. They were tested while sitting, while supine with the head straight back, and in the right and left ear-down positions. The intensity of spontaneous nystagmus was similar while sitting and supine in apogeotropic type of central positional nystagmus, but greater when supine in apogeotropic nystagmus of benign paroxysmal positional vertigo. In central positional nystagmus, when due to a focal pathology, the lesions mostly overlapped in the vestibulocerebellum (nodulus, uvula, and tonsil). We suggest a mechanism for apogeotropic type of central positional nystagmus based on the location of lesions and a model that uses the velocity-storage mechanism. During both tilt and translation, the otolith organs can relay the same gravito-inertial acceleration signal. This inherent ambiguity can be resolved by a 'tilt-estimator circuit' in which information from the semicircular canals about head rotation is combined with otolith information about linear acceleration through the velocity-storage mechanism. An example of how this mechanism works in normal subjects is the sustained horizontal nystagmus that is produced when a normal subject is rotated at a constant speed around an axis that is tilted away from the true vertical (off-vertical axis rotation). We propose that when the tilt-estimator circuit malfunctions, for example, with lesions in the vestibulocerebellum, the estimate of the direction of gravity is erroneously biased away from true vertical. If the bias is toward the nose, when the head is turned to the side while supine, there will be sustained, unwanted, horizontal positional nystagmus (apogeotropic type of central positional nystagmus) because of an inappropriate feedback signal indicating that the head is rotating when it is not.
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Affiliation(s)
- Jeong-Yoon Choi
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Stefan Glasauer
- Center for Sensorimotor Research, Department of Neurology, Ludwig-Maximilian University Munich, Munich, Germany.,German Center for Vertigo and Balance Disorders, Ludwig-Maximilian University Munich, Munich, Germany
| | - Ji Hyun Kim
- Department of Neurology, Korea University College of Medicine, Korea University Guro Hospital, Seoul, Korea
| | - David S Zee
- Departments of Neurology, Ophthalmology, Otolaryngology - Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ji-Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
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28
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Lee J, Song K, Yu IK, Lee HY. A Case of Isolated Nodular Infarction Mimicking Vestibular Neuritis on the Contralateral Side. J Audiol Otol 2019; 23:167-172. [PMID: 31234246 PMCID: PMC6646894 DOI: 10.7874/jao.2018.00528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/27/2019] [Indexed: 11/22/2022] Open
Abstract
Differentiating central vestibulopathy from more common vestibular disorders is crucial because it often necessitates different treatment strategies, and early detection can help to minimize potential complications. Isolated nodular infarct is one of the central brain lesions that can mimic peripheral vertigo. We present a case of isolated nodular infarct that had been misdiagnosed as vestibular neuritis on the contralateral side at the initial evaluation. The patient was successfully treated with anticoagulants and antihyperlipidemic agents. Clinicians should keep in mind that some causes of central vertigo mimic peripheral vestibulopathy at the early stage.
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Affiliation(s)
- Jun Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Korea
| | - Kudamo Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Korea
| | - In Kyu Yu
- Department of Radiology, Eulji University Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Ho Yun Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Eulji University Hospital, Eulji University School of Medicine, Daejeon, Korea
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Lance S, Thomson T. Cerebellar nodulus infarction secondary to vertebral artery dissection. BMJ Case Rep 2019; 12:12/4/e229876. [DOI: 10.1136/bcr-2019-229876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Jung I, Kim JS. Abnormal Eye Movements in Parkinsonism and Movement Disorders. J Mov Disord 2019; 12:1-13. [PMID: 30732429 PMCID: PMC6369379 DOI: 10.14802/jmd.18034] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 11/07/2018] [Accepted: 12/12/2018] [Indexed: 01/10/2023] Open
Abstract
Abnormal eye movements are commonly observed in movement disorders. Ocular motility examination should include bedside evaluation and laboratory recording of ocular misalignment, involuntary eye movements, including nystagmus and saccadic intrusions/oscillations, triggered nystagmus, saccades, smooth pursuit (SP), and the vestibulo-ocular reflex. Patients with Parkinson's disease (PD) mostly show hypometric saccades, especially for the selfpaced saccades, and impaired SP. Early vertical saccadic palsy is characteristic of progressive supranuclear palsy-Richardson's syndrome. Patients with cortico-basal syndrome typically show a delayed onset of saccades. Downbeat and gaze-evoked nystagmus and hypermetric saccades are characteristic ocular motor findings in ataxic disorders due to cerebellar dysfunction. In this review, we discuss various ocular motor findings in movement disorders, including PD and related disorders, ataxic syndromes, and hyperkinetic movement disorders. Systemic evaluation of the ocular motor functions may provide valuable information for early detection and monitoring of movement disorders, despite an overlap in the abnormal eye movements among different movement disorders.
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Affiliation(s)
- Ileok Jung
- Department of Neurology, Korea University College of Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Ji-Soo Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea
- Dizziness Center, Clinical Neuroscience Center, and Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Korea
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Gravier N. [Etiological assessment of a nystagmus in childhood]. J Fr Ophtalmol 2018; 41:868-878. [PMID: 30361175 DOI: 10.1016/j.jfo.2018.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 04/04/2018] [Indexed: 11/19/2022]
Abstract
Apart from the latent nystagmus, which arises as a consequence of failure to develop binocular vision, every case of childhood nystagmus needs an etiological assessment. Knowledge of the pathogenesis of the various types of nystagmus guides this assessment, particularly considering the morphological characteristics of the nystagmus. The clinical ophthalmologic examination is complemented by OCT and electrophysiologic testing (ERG, VEP). If this testing is normal, an MRI and genetic assessment are required.
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Affiliation(s)
- N Gravier
- Unité de strabologie-polyclinique de l'Atlantique, avenue Claude-Bernard, BP 40419, 44819 Nantes-Saint-Herblain cedex, France.
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Ogawa K, Suzuki Y, Akimoto T, Morita A, Hara M, Yoshihashi H, Kamei S, Soma M. Clinical Study on 3 Patients with Infarction of the Vermis/Tonsil in the Cerebellum. J Stroke Cerebrovasc Dis 2018; 27:2919-2925. [PMID: 30122628 DOI: 10.1016/j.jstrokecerebrovasdis.2018.05.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/01/2018] [Accepted: 05/25/2018] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Infarction of the vermis and the tonsil in the cerebellum presents as truncal and gait ataxia. Acute rotatory vertigo is often present in infarction of the nodulus in the caudal vermis, which is closely associated with the vestibular pathway, but is minor in infarction of the rostral vermis. The rostral vermis receives input from the dorsal spinocerebellar tract (DSCT) which conveys unconsciousness proprioceptive signals from the ipsilateral lower trunk and leg. The present study investigated the characteristics of infarction of the vermis and the tonsil. PATIENTS AND METHODS Neuroradiological findings of 3 patients whose lesions were located in the vermis or the tonsil were analyzed. RESULTS All lesions were located in the anterior lobe in the rostral vermis, the nodulus in the caudal vermis, or the tonsil. Truncal and gait ataxia were exhibited by 3 patients. Rotatory vertigo was exhibited by 2 patients whose lesions were located in the nodulus and the tonsil, but absent in a patient with infarction of the anterior lobe. Lateropulsion opposite the lesion was apparent in a patient with infarction of the tonsil. Gaze-evoked nystagmus was observed in 2 patients with infarction of the nodulus and the tonsil. CONCLUSIONS The tonsil and the nodulus were considered to have a close relationship with the vestibular pathway. Absence of rotatory vertigo indicated impairment of the DSCT. Our data suggested that the cause of truncal and gait ataxia differed between the rostral vermis and the caudal vermis/tonsil.
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Affiliation(s)
- Katsuhiko Ogawa
- Division of Neurology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Yutaka Suzuki
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan.
| | - Takayoshi Akimoto
- Division of Neurology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Akihiko Morita
- Division of Neurology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Makoto Hara
- Division of Neurology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | | | - Satoshi Kamei
- Division of Neurology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
| | - Masayoshi Soma
- Division of General Medicine, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
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Choi JY, Kim HJ, Kim JS. Recent advances in head impulse test findings in central vestibular disorders. Neurology 2018; 90:602-612. [PMID: 29490911 DOI: 10.1212/wnl.0000000000005206] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 01/02/2018] [Indexed: 11/15/2022] Open
Abstract
The head impulse test (HIT) is used to evaluate the vestibulo-ocular reflex (VOR) during a high-velocity head rotation. Corrective catch-up saccades that occur during or after the HITs usually indicate peripheral vestibular hypofunction, whereas in acute vestibular syndrome, normal clinical (bedside) HITs should prompt a search for a central lesion. However, recent quantitative studies that evaluated HITs using magnetic search coils or video-based techniques have demonstrated that specific patterns of HIT abnormalities are associated with central vestibular disorders. While normal clinical HITs are typical of central lesions, discrepancies have been observed between clinical and quantitative HITs. The horizontal head impulse VOR gains can be significantly reduced unilaterally or bilaterally (positive HITs) in lesions involving the vestibular nucleus, nucleus prepositus hypoglossi, or flocculus. In diffuse cerebellar lesions, the VOR gain during horizontal head impulses may increase (hyperactive) with corrective saccades directed the opposite way. The presence of cross-coupled vertical corrective saccades during horizontal HITs is also suggestive of diffuse cerebellar lesions. Lesions involving the vestibular nucleus, medial longitudinal fasciculus, and cerebellum may show decreased or increased gains of the VOR during vertical HITs. Defining the differences in patterns observed during abnormal HITs may help practitioners localize the responsible lesions in both central and peripheral vestibulopathy.
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Affiliation(s)
- Jeong-Yoon Choi
- From the Department of Neurology (J.-Y.C., J.-S.K.), Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam; and Research Administration Team (H.-J.K.), Seoul National University Bundang Hospital, Korea
| | - Hyo-Jung Kim
- From the Department of Neurology (J.-Y.C., J.-S.K.), Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam; and Research Administration Team (H.-J.K.), Seoul National University Bundang Hospital, Korea
| | - Ji-Soo Kim
- From the Department of Neurology (J.-Y.C., J.-S.K.), Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam; and Research Administration Team (H.-J.K.), Seoul National University Bundang Hospital, Korea.
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[Acute vestibular syndrome : Clinical examination outperforms MRI in the detection of central lesions]. DER NERVENARZT 2017; 89:1165-1171. [PMID: 29234822 DOI: 10.1007/s00115-017-0461-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A significant number of patients who seek medical treatment in an emergency department because of vertigo or dizziness, suffer from acute vestibular syndrome. This is characterized by sustained vertigo, horizontal or horizontal rotatory jerk nystagmus, and unsteady stance and gait. In the acute situation it is crucial to differentiate patients with a peripheral vestibular disorder from those with a central disease. A number of recent studies have shown that a structured clinical examination enables a reliable differential diagnosis of central or peripheral disorders. Such an examination includes the head impulse test, an alternating cover test to detect a skew deviation of the eyes, and observation of nystagmus in different positions of gaze and using Frenzel goggles. This examination is more sensitive for the detection of brainstem stroke than magnetic resonance imaging (MRI), at least within 48 h after symptom onset. As these facts are still little known, in practice there is an overuse of cost-intensive imaging with computed tomography and MRI, and a number of patient brainstem strokes in the vertebrobasilar circulation may be missed. This paper describes the relevant studies on this topic.
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Kim HA, Yi HA, Lee H. Recent Advances in Cerebellar Ischemic Stroke Syndromes Causing Vertigo and Hearing Loss. THE CEREBELLUM 2017; 15:781-788. [PMID: 26573627 DOI: 10.1007/s12311-015-0745-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cerebellar ischemic stroke is one of the common causes of vascular vertigo. It usually accompanies other neurological symptoms or signs, but a small infarct in the cerebellum can present with vertigo without other localizing symptoms. Approximately 11 % of the patients with isolated cerebellar infarction simulated acute peripheral vestibulopathy, and most patients had an infarct in the territory of the medial branch of the posterior inferior cerebellar artery (PICA). A head impulse test can differentiate acute isolated vertigo associated with PICA territory cerebellar infarction from more benign disorders involving the inner ear. Acute hearing loss (AHL) of a vascular cause is mostly associated with cerebellar infarction in the territory of the anterior inferior cerebellar artery (AICA), but PICA territory cerebellar infarction rarely causes AHL. To date, at least eight subgroups of AICA territory infarction have been identified according to the pattern of neurotological presentations, among which the most common pattern of audiovestibular dysfunction is the combined loss of auditory and vestibular functions. Sometimes acute isolated audiovestibular loss can be the initial symptom of impending posterior circulation ischemic stroke (particularly within the territory of the AICA). Audiovestibular loss from cerebellar infarction has a good long-term outcome than previously thought. Approximately half of patients with superior cerebellar artery territory (SCA) cerebellar infarction experienced true vertigo, suggesting that the vertigo and nystagmus in the SCA territory cerebellar infarctions are more common than previously thought. In this article, recent findings on clinical features of vertigo and hearing loss from cerebellar ischemic stroke syndrome are summarized.
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Affiliation(s)
- Hyun-Ah Kim
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea.,Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Hyon-Ah Yi
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea.,Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Hyung Lee
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea. .,Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea.
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Kim SH, Kim HJ, Kim JS. Isolated vestibular syndromes due to brainstem and cerebellar lesions. J Neurol 2017; 264:63-69. [DOI: 10.1007/s00415-017-8455-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 03/09/2017] [Accepted: 03/11/2017] [Indexed: 11/28/2022]
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Kim HA, Yi HA, Lee H. Failure of Fixation Suppression of Spontaneous Nystagmus in Cerebellar Infarction: Frequency, Pattern, and a Possible Structure. THE CEREBELLUM 2016; 15:182-9. [PMID: 26082303 DOI: 10.1007/s12311-015-0688-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
To investigate the frequency and pattern of failure of the fixation suppression (FFS) of spontaneous nystagmus (SN) in unilateral cerebellar infarction, and to identify the structure responsible for FFS, 29 patients with acute, mainly unilateral, isolated cerebellar infarction who had SN with a predominantly horizontal component were enrolled in this study. The ocular fixation index (OFI) was defined as the mean slow phase velocity (SPV) of the horizontal component of SN with fixation divided by the mean SPV of the horizontal component of SN without fixation. The OFI from age- and sex-matched patients with vestibular neuritis was calculated and used as the control data. The FFS of SN was only found in less than half (41 %, 12/29) of the patients. Approximately 65 % (n = 7) of the patients with isolated anterior inferior cerebellar artery territory cerebellar infarction showed FFS, whereas only a quarter (n = 3) of the patients with isolated posterior inferior cerebellar artery (PICA) territory cerebellar infarction showed FFS. The proportion of gaze-evoked nystagmus (6/12 [50 %] vs. 2/17 [12 %], p = 0.04) and deficient gain of ipsilesional pursuit (10/12 [83 %] vs. 6/17 [35 %], p = 0.05) was more frequent in the FFS group than in the group without FFS. Lesion subtraction analysis in isolated PICA territory cerebellar infarction revealed that the nodulus was commonly damaged in patients with FFS, compared to that of patients without FFS. Our study shows that FFS of SN due to acute cerebellar infarction is less common than previously thought and the nodulus may be an important structure for the suppression of SN in humans.
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Affiliation(s)
- Hyun-Ah Kim
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea
- Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Hyon-Ah Yi
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea
- Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Hyung Lee
- Department of Neurology, School of Medicine, Keimyung University, 56 Dalseong-ro, Jung-gu, Daegu, 700-712, Republic of Korea.
- Brain Research Institute, School of Medicine, Keimyung University, Daegu, Republic of Korea.
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Rust H, Lutz N, Honegger F, Fischer-Barnicol D, Welge-Luessen A, Kappos L, Allum J. Periodic alternating nystagmus in a patient on long-term lithium medication. J Neurol Sci 2016; 369:252-253. [DOI: 10.1016/j.jns.2016.08.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/28/2016] [Accepted: 08/16/2016] [Indexed: 11/28/2022]
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41
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Han WG, Yoon HC, Kim TM, Rah YC, Choi J. Clinical Correlation between Perverted Nystagmus and Brain MRI Abnormal Findings. J Audiol Otol 2016; 20:85-9. [PMID: 27626081 PMCID: PMC5020575 DOI: 10.7874/jao.2016.20.2.85] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/03/2016] [Accepted: 05/09/2016] [Indexed: 11/22/2022] Open
Abstract
Background and Objectives To analyze the clinical correlation between perverted nystagmus and brain magnetic resonance imaging (MRI) abnormal findings and to evaluate whether perverted nystagmus is clinically significant results of brain abnormal lesions or not. Subjects and Methods We performed medical charts review from January 2008 to July 2014, retrospectively. Patients who were suspected central originated vertigo at Frenzel goggles test were included among patients who visited our hospital. To investigate the correlation with nystagmus suspected central originated vertigo and brain MRI abnormal findings, we confirmed whether performing brain MRI or not. Then we exclude that patients not performed brain MRI. Results The number of patients with perverted nystagmus was 15, upbeating was 1 and down-beating was 14. Among these patients, 5 patients have brain MRI abnormal findings. However, 2 patients with MRI abnormal findings were not associated correctly with perverted nystagmus and only 3 patients with perverted nystagmus were considered central originated vertigo and further evaluation and treatment was performed by the department of neurology. Conclusions Perverted nystagmus was considered to the abnormalities at brain lesions, especially cerebellum, but neurologic symptoms and further evaluation were needed for exact diagnosis of central originated vertigo.
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Affiliation(s)
- Won-Gue Han
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Hee-Chul Yoon
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Tae-Min Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Yoon Chan Rah
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - June Choi
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
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Abstract
Normal vestibular end organs generate an equal resting-firing frequency of the axons, which is the same on both sides under static conditions. An acute unilateral vestibulopathy leads to a vestibular tone imbalance. Acute unilateral vestibulopathy is defined by the patient history and the clinical examination and, in unclear cases, laboratory examinations. Key signs and symptoms are an acute onset of spinning vertigo, postural imbalance and nausea as well as a horizontal rotatory nystagmus beating towards the non-affected side, a pathological head-impulse test and no evidence for central vestibular or ocular motor dysfunction. The so-called big five allow a differentiation between a peripheral and central lesion by the bedside examination. The differential diagnosis of peripheral labyrinthine and vestibular nerve disorders mimicking acute unilateral vestibulopathy includes central vestibular disorders, in particular "vestibular pseudoneuritis" and other peripheral vestibular disorders, such as beginning Menière's disease. The management of acute unilateral vestibulopathy involves (1) symptomatic treatment with antivertiginous drugs, (2) causal treatment with corticosteroids, and (3) physical therapy.
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Affiliation(s)
- Michael Strupp
- Department of Neurology, German Center for Vertigo and Balance Disorders, University Hospital Munich, Campus Grosshadern, Munich 81377, Germany.
| | - Mans Magnusson
- Department of Otolaryngology, Lund University, Lund 22100, Sweden
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Impaired Tilt Suppression of Post-Rotatory Nystagmus and Cross-Coupled Head-Shaking Nystagmus in Cerebellar Lesions: Image Mapping Study. THE CEREBELLUM 2016; 16:95-102. [DOI: 10.1007/s12311-016-0772-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Abstract
The differential diagnosis of patients with vestibular symptoms usually begins with the question: is the lesion central or is it peripheral? The answer commonly emerges from a careful examination of eye movements, especially when the lesion is located in otherwise clinically silent areas of the brain such as the vestibular portions of the cerebellum (flocculus, paraflocculus which is called the tonsils in humans, nodulus, and uvula) and the vestibular nuclei as well as immediately adjacent areas (the perihypoglossal nuclei and the paramedian nuclei and tracts). The neural circuitry that controls vestibular eye movements is intertwined with a larger network within the brainstem and cerebellum that also controls other types of conjugate eye movements. These include saccades and pursuit as well as the mechanisms that enable steady fixation, both straight ahead and in eccentric gaze positions. Navigating through this complex network requires a thorough knowledge about all classes of eye movements to help localize lesions causing a vestibular disorder. Here we review the different classes of eye movements and how to examine them, and then describe common ocular motor findings associated with central vestibular lesions from both a topographic and functional perspective.
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Affiliation(s)
- A Kheradmand
- Departments of Neurology and Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - A I Colpak
- Hacettepe University School of Medicine, Ankara, Turkey
| | - D S Zee
- Departments of Neurology, Otolaryngology-Head and Neck Surgery, Ophthalmology and Neuroscience, Johns Hopkins Hospital, Baltimore, MD, USA.
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45
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Kim JS, Caplan LR. Vertebrobasilar Disease. Stroke 2016. [DOI: 10.1016/b978-0-323-29544-4.00026-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Choi KD, Lee H, Kim JS. Ischemic syndromes causing dizziness and vertigo. HANDBOOK OF CLINICAL NEUROLOGY 2016; 137:317-40. [PMID: 27638081 DOI: 10.1016/b978-0-444-63437-5.00023-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Dizziness/vertigo and imbalance are the most common symptoms of vertebrobasilar ischemia. Even though dizziness/vertigo usually accompanies other neurologic symptoms and signs in cerebrovascular disorders, a diagnosis of isolated vascular vertigo is increasing markedly by virtue of recent developments in clinical neurotology and neuroimaging. It is important to differentiate isolated vertigo of a vascular cause from more benign disorders involving the inner ear, since therapeutic strategies and prognosis differ between these two conditions. Over the last decade, we have achieved a marked development in the understanding and diagnosis of vascular dizziness/vertigo. Introduction of diffusion-weighted magnetic resonance imaging (MRI) has greatly enhanced detection of infarctions in patients with vascular dizziness/vertigo, especially in the posterior-circulation territories. However, well-organized bedside neurotologic evaluation is even more sensitive than MRI in detecting acute infarction as a cause of spontaneous prolonged vertigo. Furthermore, detailed evaluation of strategic infarctions has elucidated the function of various vestibular structures of the brainstem and cerebellum. In contrast, diagnosis of isolated labyrinthine infarction still remains a challenge. This diagnostic difficulty also applies to isolated transient dizziness/vertigo of vascular origin. Regarding the common nonlacunar mechanisms in the acute vestibular syndrome from small infarctions, individual strategies may be indicated to prevent recurrences of stroke in patients with vascular vertigo.
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Affiliation(s)
- K-D Choi
- Department of Neurology, College of Medicine, Pusan National University Hospital, Busan, Korea
| | - H Lee
- Department of Neurology, Keimyung University School of Medicine, Daegu, Korea
| | - J-S Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea.
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Newman-Toker DE, Della Santina CC, Blitz AM. Vertigo and hearing loss. HANDBOOK OF CLINICAL NEUROLOGY 2016; 136:905-21. [PMID: 27430449 DOI: 10.1016/b978-0-444-53486-6.00046-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Symptoms referable to disorders affecting the inner ear and vestibulocochlear nerve (eighth cranial nerve) include dizziness, vertigo, tinnitus, and hearing loss, in various combinations. Similar symptoms may occur with involvement of the central nervous system, principally the brainstem and cerebellum, to which the vestibular and auditory systems are connected. Imaging choices should be tailored to patient symptoms and the clinical context. Computed tomography (CT) should be used primarily to assess bony structures. Magnetic resonance imaging (MRI) should be used primarily to assess soft-tissue structures. Vascular imaging by angiography or venography should be obtained when vascular lesions are suspected. No imaging should be obtained in patients with typical presentations of common peripheral vestibular or auditory disorders. In current clinical practice, neuroimaging is often overused, especially CT in the assessment of acute dizziness and vertigo in the emergency department. Despite low sensitivity for ischemic strokes, CT is often used to rule out neurologic causes. When ischemic stroke is the principal concern in acute vestibular presentations, imaging should almost always be by MRI with diffusion-weighted images, rather than CT. In this chapter, we describe recommended strategies for audiovestibular imaging based on patient symptoms and signs.
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Affiliation(s)
- David E Newman-Toker
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Otolaryngology, Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Charles C Della Santina
- Department of Otolaryngology, Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ari M Blitz
- Neuro-radiology Division, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Gold DR, Zee DS. Neuro-ophthalmology and neuro-otology update. J Neurol 2015; 262:2786-92. [DOI: 10.1007/s00415-015-7825-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 06/11/2015] [Indexed: 12/19/2022]
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Abstract
Stroke involving the brainstem and cerebellum frequently presents acute vestibular syndrome. Although vascular vertigo is known to usually accompany other neurologic symptoms and signs, isolated vertigo from small infarcts involving the cerebellum or brainstem has been increasingly recognized. Bedside neuro-otologic examination can reliably differentiate acute vestibular syndrome due to stroke from more benign inner ear disease. Sometimes acute isolated audiovestibular loss may herald impending infarction in the territory of the anterior inferior cerebellar artery. Accurate identification of isolated vascular vertigo is very important because misdiagnosis of acute stroke may result in significant morbidity and mortality.
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Affiliation(s)
- Seung-Han Lee
- Department of Neurology, Chonnam National University Medical School, Gwangju, Korea
| | - Ji-Soo Kim
- Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College Medicine, Seoul, Korea.
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Choi JH, Seo JD, Choi YR, Kim MJ, Kim HJ, Kim JS, Choi KD. Inferior cerebellar peduncular lesion causes a distinct vestibular syndrome. Eur J Neurol 2015; 22:1062-7. [DOI: 10.1111/ene.12705] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 02/06/2015] [Indexed: 11/29/2022]
Affiliation(s)
- J.-H. Choi
- Department of Neurology; Pusan National University School of Medicine; Research Institute for Convergence of Biomedical Science and Technology; Pusan National University Yangsan Hospital; Yangsan Korea
| | - J.-D. Seo
- Department of Neurology; Bonhospital; Busan Korea
| | - Y. R. Choi
- Department of Neurology; Pusan National University Hospital; Pusan National University School of Medicine and Biomedical Research Institute; Busan Korea
| | - M.-J. Kim
- Department of Neurology; Pusan National University Hospital; Pusan National University School of Medicine and Biomedical Research Institute; Busan Korea
| | - H.-J. Kim
- Department of Biomedical Laboratory Science; Kyungdong University; Goseong Korea
| | - J. S. Kim
- Biomedical Research Institute and Department of Neurology; Seoul National University Bundang Hospital; Seongnam Korea
| | - K.-D. Choi
- Department of Neurology; Pusan National University Hospital; Pusan National University School of Medicine and Biomedical Research Institute; Busan Korea
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