AI Article Synopsis
- The study aimed to connect the length of spontaneous and hyperventilation-induced nystagmus (HVIN) with the causes of acute unilateral vestibulopathy in patients.
- It analyzed data from 198 patients, revealing that those with short-lasting nystagmus were typically older and had higher cardiovascular risk, with most showing paretic HVIN.
- In contrast, patients with long-lasting nystagmus were generally younger and had lower vascular risks, with a mix of HVIN patterns present, suggesting both vascular and inflammatory causes may be involved.
Article Abstract
Objective: To relate clinically the duration of spontaneous nystagmus and hyperventilation-induced nystagmus (HVIN) to vascular or inflammatory aetiology of acute unilateral vestibulopathy observed in a very early stage.
Methods: This is a retrospective study on 198 patients with acute unilateral vestibulopathy.
Results: In the short-lasting nystagmus group (spontaneous nystagmus < 48 h), mean age and cardiovascular risk were significantly higher; the rates of negative HVIN and paretic HVIN were 41.7% and 58.3%, respectively. In the long-lasting nystagmus group (spontaneous nystagmus > 48 h), mean age and vascular risk were lower; HVIN was absent in 12.6% of the cases, HVIN excitatory patterns were observed in 40.3% of cases and a paretic pattern in 47.1%.
Conclusions: A vascular aetiology should be considered the most likely in patients with spontaneous nystagmus < 48 hours: all patients were > 60 years old, cardiovascular risk was higher and HVIN was always absent or paretic. In the group with nystagmus > 48 hours, similarly, data indicate a higher incidence of paretic HVIN in older patients and higher vascular risk, even if the data does not allow us to lean clearly towards one of the two aetiological hypotheses.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9853109 | PMC |
| http://dx.doi.org/10.14639/0392-100X-N1975 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Selective otolithic dysfunction in patients presenting with acute spontaneous vertigo: consideration based on MRI.
Front Neurol
December 2024
Dizziness Center, Clinical Neuroscience Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
Objective: Acute unilateral peripheral vestibulopathy or vestibular neuritis (AUPV/VN) manifests as acute onset vertigo, often accompanied by nausea, vomiting, and moderate gait instability. It is suspected when vestibular hypofunction is documented on video-head impulse (video-HITs) and caloric tests in the presence of contralesionally beating horizontal-torsional nystagmus. Herein, we report patients presenting with acute vestibular syndrome (AVS) showing selective otolithic dysfunction in the presence of normal caloric and video-HITs and abnormal enhancement of the peripheral vestibular structures on MRI.
View Article and Find Full Text PDFNystagmus During a Vertigo Crisis in Menière's Disease-Direction of Nystagmus, Contribution of a Mobile Phone and Therapeutic Implications.
J Clin Med
December 2024
Département d'ORL, Centre Hospitalier Universitaire de Saint Etienne, 42055 Saint-Etienne, France.
: Spontaneous nystagmus during vertigo attacks of Menière's disease has been essentially described as horizontal, beating ipsilaterally (irritative type) or contralaterally (deficit type) to the hearing loss. Our main objective was to describe the characteristics of nystagmus during vertigo attacks. The second objective was to determine the feasibility of self-video recording of eye movements by a mobile phone.
View Article and Find Full Text PDFSystemic ketamine toxicity following dermal application of a compounded pain cream.
Am J Emerg Med
December 2024
Cook County Health, Chicago, IL, USA.
Ketamine is an NMDA receptor antagonist commonly used as a dissociative anesthetic and analgesic. Though it is conventionally administered via the intravenous, intramuscular, or intranasal route, use as a compounded analgesic cream is becoming increasingly common. This is a case report of a 61-year-old man who was detained by the police for erratic driving.
View Article and Find Full Text PDFNew Fresnel lens loupe for nystagmus observation suitable for use by medical staff in emergency departments.
Int J Emerg Med
December 2024
Mejiro University Ear Institute Clinic, 320 Ukiya, Iwatsuki-ku, Saitama-shi, Saitama, 339-8501, Japan.
Background: Reduction of spontaneous nystagmus by fixation, a characteristic feature of peripheral nystagmus, is important for differentiating between peripheral and central vestibular disorders. In the emergency room, Frenzel goggles are recommended to observe spontaneous nystagmus for the differential diagnosis of acute vestibular syndrome. We developed a portable loupe with a Fresnel lens to observe nystagmus.
View Article and Find Full Text PDFQuantitative Oculomotor and Vestibular Profile in Spinocerebellar Ataxia Type 6 - Systematic Review and Meta-Analysis.
Cerebellum
December 2024
NeuroMetrology Lab, Nuffield Department of Clinical Neurosciences, Clinical Neurology, Medical Sciences Division, University of Oxford, Oxford, OX3 9DU, UK.
Whereas several studies have reported on quantitative oculomotor and vestibular measurements in spinocerebellar ataxia type 6 (SCA6), selecting the most suitable paradigms remains challenging. We aimed to address this knowledge gap through a systematic literature review and providing disease-specific recommendations for a tailored set of eye-movement recordings in SCA6. A literature search (MEDLINE, Embase) was performed focusing on studies reporting on quantitative oculomotor and/or vestibular measurements in SCA6-patients.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!