The combination of periodic alternating nystagmus (PAN) and periodic alternating skew deviation (PASD) is rare. We report a case of PAN and PASD in a patient with spinocerebellar ataxia type 6 (SCA-6) and discuss the role of the cerebellum as a plausible mechanism for this combined pathologic condition.

Download full-text PDF

Source
http://dx.doi.org/10.1097/WNO.0b013e318183bf5aDOI Listing

Publication Analysis

Top Keywords

periodic alternating
16
alternating nystagmus
8
alternating skew
8
skew deviation
8
spinocerebellar ataxia
8
ataxia type
8
periodic
4
nystagmus periodic
4
deviation spinocerebellar
4
type combination
4

Similar Publications

Introduction: The emergence of high-efficacy disease-modifying therapies (HE DMT) for multiple sclerosis (MS) may pose challenges to the administration and monitoring burden of the therapies. This article presents the results of the Delphi consensus method to generate insights from experts on the administration and monitoring burden of HE DMT in Saudi Arabia with a special focus on cladribine.

Methods: Between January and March 2023, a two-round modified Delphi method was used to establish consensus regarding the administration and monitoring burden of HE DMTs used for MS.

View Article and Find Full Text PDF

This study aimed to achieve two main objectives: first, to determine whether the virulence factors of symbiotic bacteria of entomopathogenic nematodes (EPNs) against insect hosts are cell-associated or secreted, and to shed light on the underlying mechanisms of pathogenicity; and second, to identify and evaluate the standalone pathogenicity of symbiotic bacteria associated with entomopathogenic nematodes against Tenebrio molitor. Three bacterial species, Xenorhabdus nematophila (A41, SC, A18 and SF), Photorhabdus kayaii, and P. thracensis, were isolated and characterized via phylogenetic analysis of 16S-rRNA and gyrB genes.

View Article and Find Full Text PDF

Contemporary studies report nonconvulsive status epilepticus (NCSE) in Creutzfeldt-Jakob disease (CJD), based on benzodiazepine (BZP)-responsive epileptiform discharges on the electroencephalogram (EEG), with the following false syllogism: (1) intravenous (IV) administration of BZPs usually suppress ictal activity in NCSE; (2) in CJD, periodic sharp wave complexes (PSWCs) are suppressed by IV BZPs; (3) therefore, these patients have NCSE. This is a simplistic and invalid conclusion, because authors of 20th-century science reports have clearly shown that IV BZPs, short-acting barbiturates, and drugs with no antiseizure effects, such as chloral hydrate and IV naloxone, suppress PSWCs, but patients fall asleep with no clinical improvement. In contrast, IV methylphenidate transiently improves both the EEG and clinical states.

View Article and Find Full Text PDF

Evaluating multiannual sedimentary nutrient retention in agricultural two-stage channels.

Sci Rep

January 2025

Environmental Geochemistry group, Department of Geosciences and Geography, University of Helsinki, Helsinki, Finland.

The two-stage channel (TSC) design with a vegetated man-made floodplain has been recommended as an alternative to conventional re-dredging for managing suspended sediment (SS) and nutrient loads in agricultural streams. However, there are currently uncertainties surrounding the efficiency of TSCs, since mass balances covering the whole annual hydrograph and including different periods of the channel life cycle are lacking. This paper aims to improve understanding of the medium-term morphological development and sedimentary nutrient retention when a dredged, trapezoidal-shaped channel is converted into a TSC, using a mass balance estimate of nutrient and carbon retention from immediately after excavation until the establishment of approximate biogeochemical equilibrium retention.

View Article and Find Full Text PDF

Radiation therapy for childhood-onset craniopharyngioma: systematic review and meta-analysis.

J Neurooncol

January 2025

Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, 100045, China.

Background: Craniopharyngioma (CP), a benign tumor originating from remnants of Rathke's pouch in the sellar region, accounts for approximately 30% of all cases of craniopharyngioma. Radiation therapy has been used to treat CP patients for decades; however, there is still a lack of systematic reviews on the long-term tumor control outcomes in pediatric CP patients treated with external radiation therapy.

Methods: We conducted a comprehensive search of multiple databases for studies on the tumor progression rates of childhood-onset CP(COCP) patients who received external radiotherapy.

View Article and Find Full Text PDF

Want 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!