BMJ Neurology Open最新文献

Introduction: Fibrocartilaginous embolism (FCE) is a rare spinal cord infarction due to embolism of fibrocartilaginous material with consecutive arterial infarction of the anterior spinal artery. Physical activity with increased axial pressure is the underlying mechanism of the retrograde migration of primarily nucleus pulposus material into the arterial system of the spinal cord. The initial severity of the clinical symptoms is supposed to be a prognostic predictor of recovery and so far, no specific treatment recommendation exists.

Methods: We present a case of spinal cord infarction due to FCE after long and sporty mountain cycling (during 6 hours and 2500 altitude difference) with detailed clinical and radiological follow-up.

Results: The clinical and radiological follow-up at month 4 showed an unexpected almost complete recovery despite the extensive initial clinical impairment.

Conclusion: Mountain cycling has not yet been described as a specific trigger of FCE with spinal cord infarction. Further observation is necessary to show if the prolonged bent posture and core muscle imbalance in cycling, in addition to the Valsalva manoeuvre during physical effort, may contribute to FCE. It is unknown if prognosis of spinal cord infarction due to FCE differs from other causes of spinal ischaemia and if anticoagulation treatment presents a therapeutic option.

Objectives: The identification of SARS-CoV-2 vaccine-induced immune thrombotic thrombocytopenia (VITT) followed the recognition of a hitherto uncommon clinical syndrome frequently associated with cerebral venous sinus thrombosis (CVST), termed 'thrombosis with thrombocytopenia' syndrome (TTS). While anecdotally recognised as rare, the background incidence of TTS is unknown. We therefore aimed to investigate the background incidence of CVST with TTS in a large, well-defined population-based CVST cohort.

Methods: We performed an analysis of our previously obtained retrospective population-based cohort of patients with CVST from Adelaide, Australia (2005-2011, comprising an adult population of 953 390) to identify the background incidence of CVST associated with TTS.

Results: Among 105 people with CVST, the background population-based incidence of TTS-associated CVST was 1.2 per million per year (95% CI 0.5 to 2.4). A single case of a severe CVST VITT-like syndrome with multiorgan thrombosis was identified, occurring 3 weeks postrotavirus infection.

Conclusions: In our population-based study, the background incidence of CVST with associated TTS was very low, and the sole clinically severe case with multiorgan thrombosis occurred following a rotaviral precipitant. Our study establishes a benchmark against which to measure future potential 'TTS' clusters and suggests that viruses other than adenovirus may trigger this syndrome.

Introduction: Isolated infarction of the fornix is a relatively rare stroke syndrome frequently associated with amnesia. The long-term cognitive outcome in cases of acute fornix infarction is poorly understood. This is largely due to the limited number of case studies that have documented cognitive outcomes beyond the acute recovery phase on quantifiable neuropsychological measures. We describe a patient who developed acute amnesia and was subsequently diagnosed on cerebral MRI with bilateral infarction in the anterior columns of the fornix.

Method: Comprehensive neuropsychological review was undertaken prospectively at baseline, early and late phases of recovery.

Results: At 9 months post-stroke, there was some reduction in the severity of memory dysfunction, but a significant anterograde amnesia persisted.

Conclusion: This is one of the very few cases in the literature where neuropsychological function has been comprehensively and serially examined over the first year post-isolated bilateral fornix infarction. It is concluded that amnesia can persist well beyond 6 months in these cases, with associated functional impairment in daily life.

Individuals with acute disseminated encephalomyelitis (ADEM) can experience persistent cognitive deficits and psychopathology, which significantly interferes with daily functioning and quality of life. Here, we review the current literature to characterise the cognitive and psychological sequelae, suggest avenues for further research and discuss the implications for clinical practice. Research on this topic is largely limited to the paediatric population with a few case studies in the adult population. The current evidence demonstrates persistent cognitive deficits in attention and information processing speed, as well as elevated symptoms of depression and anxiety. Results are mixed for executive functions and memory, while language and visuospatial functions are relatively undisturbed. There is emerging evidence to suggest that individuals-particularly children-with ADEM experience persistent cognitive deficits and suffer from elevated symptoms of depression and anxiety. Comprehensive neuropsychological assessments are recommended to guide intervention and monitor progress. Further research is required to clarify our understanding of the cognitive and psychological outcomes following ADEM and the factors that influence them.

Background: Educational attainment is a critical social determinant of health that impacts the risk and severity of incident ischaemic stroke, but less is known of its impact on intracerebral haemorrhage (ICH). The objective of this study is to determine whether educational attainment is associated with ICH severity and short-term prognosis.

Methods: Subjects were enrolled in a prospectively ascertained cohort with primary ICH from 1994 to 2020 at Massachusetts General Hospital. Educational attainment, medical history of ICH risk factors, ICH volume and ICH score were obtained on admission. The primary outcomes were ICH volume and the ICH score.

Results: Of 2539 eligible patients eligible, the median age of the sample was 74 (IQR 64-82) and 2159 (85%) had high school-only education. 1655 (65%) presented with an ICH volume less than or equal to 30 mL and 1744 (69%) presented with an ICH score less than 3. In multivariable logistic regression analyses controlling for age, income, employment history and prestroke diagnoses of hypertension and coronary artery disease, patients with high school-only education were more likely to have an ICH volume greater than 30 mL compared with college diplomates (OR 1.58, 95% CI 1.24 to 2.08) and more likely to have an ICH score of 3 or greater compared with college diplomates (OR 2.37, 95% CI 1.77 to 3.19).

Discussion: Prestroke educational attainment is independently associated with ICH severity and short-term prognosis, with lower educational attainment associated with larger ICH volumes and higher ICH scores. Future studies should examine how educational attainment impacts exposure to traditional clinical risk factors.

Background: Increasing prevalence of screens among young people is a notable characteristic of the modern digital era. The study aimed to explore the prevalence and associated factors of migraine headache (MH) and tension-type headache (TTH) among Bangladeshi students continuing online education.

Methods: A total of 771 students were selected conveniently and using the quota sampling method. A pretested semistructured and self-administered questionnaire containing the background information, Headache Screening Questionnaire-English Version, Patient Health Questionnaire-9, Speech, Spatial and Qualities of Hearing scale and Insomnia Severity Index was used for data collection. Multivariate logistic regression analysis was conducted to explore the relationship between different headaches and screen use.

Results: The prevalence of MH, TTH and mixed headache (both MH and TTH) in the study population was 26.07%, 47.08% and 14.75%, respectively. Longer duration of online study (>12 months, adjusted ORs (AORs): 2.83, 95% CI 0 1.00 to 8.00), history of eye problem (AOR: 1.48, 95% CI 1.01 to 2.17), insomnia (AOR: 1.53, 95% CI 1.01 to 2.33) and moderate-to-severe depression (AOR: 2.35, 95% CI 1.55 to 3.56) were significantly associated with migraine headache. Conversely, longer duration of online study (>12 months, AOR: 2.87, 95% CI 1.40 to 5.86), moderate-to-severe depression (AOR=1.47, 95% CI 1.05 to 2.10) and use of multiple devices (AOR<1) for online study were significantly associated with TTH. In addition, longer duration of screen exposure (for >12 months, AOR: 4.56, 95% CI 0.99 to 20.93), moderate-to-severe depression (AOR: 2.25, 95% CI 1.37 to 3.72) and family history of headache (AOR: 2.66, 95% CI 1.65 to 4.29) were associated with mixed headache.

Conclusion: Considering the current prevalence of TTH and MH among students and their relationship with screentime, providing health education on the proper use of electronic devices can be a promising strategy in mitigating the negative consequences.