Results 61 to 70 of about 74,410 (305)

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons   +17 more
wiley   +1 more source

Seminars in epileptology: How to diagnose status epilepticus in adults and children

open access: yesEpileptic Disorders, EarlyView.
Abstract Status epilepticus (SE) can be regarded as the most severe expression of seizure activity characterized by a low probability of spontaneous cessation and mechanisms leading to metabolic and inflammatory derangements with increased risk of brain damage, alterations of neural networks, and potentially life‐threatening systemic complications ...
M. Leitinger   +12 more
wiley   +1 more source

An infrequent type of nystagmus during a vertigo crisis in Meniére's disease

open access: yesOtolaryngology Case Reports, 2021
Background: Meniere's disease is often characterized by a changing horizontal nystagmus during the crisis; however, vertical nystagmus is not often detected.
Antonio Miguel Moreno Rueda   +3 more
doaj  

TUBA1A‐related tubulinopathy associated with the infantile epileptic spasms syndrome and atypical absence seizures

open access: yesEpileptic Disorders, EarlyView.
Abstract Patients with TUBA1A pathogenic variants may present with complex brain malformation, intellectual disability, and epilepsy. The epilepsy phenotype is varied, ranging from mild to severe, with epileptic spasms and focal seizures being the most common seizure types.
Andy Cheuk‐Him Ng   +1 more
wiley   +1 more source

Fixation eye movement abnormalities and stereopsis recovery following strabismus repair

open access: yesScientific Reports, 2021
We evaluated the effects of strabismus repair on fixational eye movements (FEMs) and stereopsis recovery in patients with fusion maldevelopment nystagmus (FMN) and patients without nystagmus.
Talora L. Martin   +5 more
doaj   +1 more source

Persistent Upbeat Positional Nystagmus in a Patient with Bilateral Posterior Canal Benign Paroxysmal Positional Vertigo

open access: yesCase Reports in Otolaryngology, 2019
Here, we report a patient with persistent positional upbeat nystagmus in a straight supine position with no evident abnormal central nervous system findings.
Akihide Ichimura, Shigeto Itani
doaj   +1 more source

Study of congenital nystagmus: optokinetic nystagmus. [PDF]

open access: yesBritish Journal of Ophthalmology, 1980
A severe defect of optokinetic nystagmus (OKN) was found in 46 patients with congenital nystagmus. Abnormal patterns of OKN, such as superimposition of pendular oscillations on the optokinetic slow component and inversion of OKN, were observed. Optokinetic gain (eye movement velocity/drum velocity) was decreased compared to that in normal subjects, and
V Honrubia, R W Baloh, R D Yee
openaire   +2 more sources

Hereditary Spastic Paraplegia in Alberta: Lessons from a Well‐Defined Cohort Including the Indigenous Population

open access: yesMovement Disorders Clinical Practice, EarlyView.
Abstract Background Hereditary spastic paraplegias (HSP) are rare disorders sharing common features of leg spasticity with gait impairment. Simple and complex forms are recognized; over 50% of cases remain unsolved genetically. Little is known about the genetics of HSP among Indigenous Peoples. Objectives To describe clinical, radiological, and genetic
Ekhlas Assaedi   +7 more
wiley   +1 more source

The treatment of nystagmus by periodic light influence [PDF]

open access: yesСаратовский научно-медицинский журнал, 2010
The data about results of treatment of nystagmus by periodic light influence are brought. 56 patients with various kinds of nystagmus received the treatment. After treatment the stable reduction of nystagmus' amplitude was observed in 85 % of cases.
T.B. Usanova
doaj  

Downbeat Nystagmus Induced by Sedation in Lasik

open access: yesCase Reports in Ophthalmological Medicine, 2012
Nystagmus was elicited during lasik under sedation in two patients that were treated for depression. Nystagmus was not present before or after surgery. Nystagmus can be pharmacologically induced and can be a hazard to refractive surgery.
Miguel Paciuc-Beja, Gerardo Mendieta
doaj   +1 more source

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