83 results match your criteria: "National Neuroscience Institute Singapore[Affiliation]"

Introduction: Intracranial large artery disease (ICLAD) is a common cause of ischaemic stroke and is associated with the risk of recurrent vascular events in the short term. We compared the incidence of various long-term vascular outcomes between ischaemic stroke patients with and without ICLAD.

Methods: This was a longitudinal observational study of acute ischaemic stroke patients who were followed up serially for recurrent stroke, myocardial infarction or vascular death up to a median of 86 months.

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Acute hemorrhagic leukoencephalitis: a case report and systematic review of factors associated with severe disability and death.

Neurol Sci

December 2024

Department of Neurology, National Neuroscience Institute (Singapore General Hospital Campus), 20 College Road, Singapore, 169856, Singapore.

Article Synopsis
  • Acute hemorrhagic leukoencephalitis (AHLE) is a rare and serious form of ADEM with varying outcomes, often related to infections, particularly COVID-19.
  • A systematic review identified 31 previous cases, revealing that a significant portion was preceded by infections, and alterations in mental status and GCS scores were linked to severe outcomes.
  • The study suggests that certain clinical presentations, such as altered mental status and an abnormal upgoing plantar response, could indicate poor prognoses in AHLE cases, highlighting the need for further research.
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Neurophysiological findings in conus medullaris infarction-a case report and systematic review of the literature.

Acta Neurol Belg

August 2024

Department of Neurology, National Neuroscience Institute (Singapore General Hospital Campus), 20 College Road, Singapore, 169856, Singapore.

Introduction: Conus medullaris infarction (CMI) is a rare vascular phenomenon that has been scarcely reported in the literature. While previous studies have described the clinical and radiological features of CMI, little attention has been paid to its associated neurophysiological findings.

Methods: We present a case of idiopathic CMI and its neurophysiological findings, then present our findings from a systematic review of other reports of CMI with neurophysiological features found via PubMed search.

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Introduction: Post stroke cognitive impairment (PSCI) is a common complication of ischemic stroke. PSCI can involve different depending on clinical and stroke related characteristics. The aim of this study is to determine the factors associated with impairments in specific cognitive domains.

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The comparability of endovascular coiling over neurosurgical clipping has not been firmly established in elderly patients with aneurysmal subarachnoid haemorrhage (aSAH). Data were obtained from all patients with aSAH aged ≥60 across three tertiary hospitals in Singapore from 2014 to 2019. Outcome measures included modified Rankin Scale (mRS) score at 3 and at 6 months, and in-hospital mortality.

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Rare genetic diseases affect 5-8% of the population but are often undiagnosed or misdiagnosed. Electronic health records (EHR) contain large amounts of data, which provide opportunities for analysing and mining. Data mining, in the form of cluster analysis and visualisation, was performed on a database containing deidentified health records of 1.

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Background And Aims: Stroke is the second leading cause of death and third leading cause of disability worldwide. There is an increasing incidence of stroke among the young. In this study, we aimed to identify factors associated with poor long-term prognosis in young stroke patients.

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We describe a case of infiltrative optic neuropathy with hypertrophic pachymeningitis noted on MRI of the brain, presenting a diagnostic dilemma with a wide variety of differential diagnoses to consider. Our patient is a middle-aged woman with a 20-year history of migranous-sounding headaches who was incidentally found to have worsening vision in her left eye during a routine driving test visual acuity check. Neurological examination revealed a left grade III relative afferent pupillary defect and a central scotoma with red desaturation.

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Painless nondiabetic lumbosacral radiculoplexus neuropathy with complete recovery: a case report.

J Med Case Rep

November 2023

National Neuroscience Institute (Singapore General Hospital Campus), Hospital Drive 1 Outram Road, Singapore, 169608, Singapore.

Background: Lumbosacral radiculoplexus neuropathy, also known as amyotrophy, is an uncommon monophasic disorder characterized by inflammation of the lumbosacral nerve roots and plexuses. Lumbosacral radiculoplexus neuropathy is usually associated with diabetes mellitus, is typically painful at presentation, and often associated with long-term residual neurologic deficits. We report a case of painless, nondiabetic lumbosacral radiculoplexus neuropathy in a young Chinese woman, who made a full recovery after treatment with intravenous immunoglobulin, adding an atypical case to the scarce literature on lumbosacral radiculoplexus neuropathy.

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Introduction: Patients with cancer are known to have an increased risk of ischemic stroke (IS) around the time of their diagnosis. However, there is a paucity of data in Asian populations, and as such, we aimed to determine cancer incidence rates and patterns in Asian IS patients as well as investigate the differences in vascular risk profile of IS patients with and without concomitant cancer.

Methods: We conducted a retrospective cross-sectional study using data from the Singapore Stroke and Cancer registries.

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Background: The "gold standard" marker for freezing of gait severity is percentage of time spent with freezing observed through video analysis.

Objective: This study examined inter- and intra-rater reliability and variability of physiotherapists rating freezing of gait severity through video analysis and explored the effects of experience.

Methods: Thirty physiotherapists rated 14 videos of Timed Up and Go performance by people with Parkinson's and gait freezing.

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Anti-NMDAR encephalitis in Southeast Asia - A single-centre, longitudinal study.

Clin Neurol Neurosurg

August 2023

Department of Neurology, National Neuroscience Institute (Singapore General Hospital), Singapore; Duke-NUS Medical School, Singapore. Electronic address:

Aims: To describe the clinical features and outcomes of anti-NMDA receptor encephalitis (ANMDARE) in Southeast Asian (SEA) patients.

Method: SEA patients diagnosed and treated for ANMDARE at Singapore General Hospital between January 2010 and June 2020 were included in this observational study, in which their clinical features and outcomes were retrospectively analysed.

Results: We studied 20 patients: 11 Chinese, 3 Tagalogs, 2 Malays, 2 Indians, 1 Eurasian and 1 Javanese.

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We describe the first case of anti-CV2 paraneoplastic polyneuropathy associated with lung adenocarcinoma. Our patient presented with progressive unsteadiness and numbness involving bilateral upper and lower limbs. He had symmetrical length-dependent lower motor neuron pattern of weakness and numbness involving both small and large fibres with prominent sensory ataxia.

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Spinal cord infarction may present as longitudinally extensive myelopathy, similar to inflammatory myelitis such as neuromyelitis optica. Magnetic resonance imaging features such as diffusion-weighted imaging/apparent diffusion coefficient showing restricted diffusion and lack of contrast enhancement are helpful in the diagnosis of spinal cord infarction and differentiating them from inflammatory myelitis.

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Article Synopsis
  • * An observational study in Singapore evaluated 235 patients and found that the majority (77%) chose to get reimmunized, with older age and greater physical disability influencing the decision to delay vaccination.
  • * Neurological events recurred in only four patients post-reimmunization, suggesting that prior neurological issues shouldn't automatically prevent individuals from getting vaccinated again, given the significant public health benefits of vaccination.
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Background: Early-onset Parkinson's disease (EOPD)/young-onset Parkinson's disease (YOPD) is defined as Parkinson's disease (PD) with an age at onset (AAO) after age 21 years but before the usual AAO for PD. Consensus is lacking, and the reported maximal age for EOPD/YOPD has varied from 40 to 60 years, leading to a lack of uniformity in published studies and difficulty in harmonization of data. EOPD and YOPD have both been used in the literature, somewhat interchangeably.

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A 45-year-old male was admitted with severe orthostatic headache secondary to spontaneous intracranial hypotension. He had the site of cerebrospinal fluid (CSF) leakage identified at the anterolateral aspect of the C7-T1 spinal level. He first underwent a conventional posterior-approach cervical epidural blood patch (EBP) which provided immediate relief to the patient's symptoms; however, his symptoms recurred two days later.

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COVID-19 infection after two doses of SARS-CoV-2 mRNA vaccine in multiple sclerosis, AQP4-antibody NMOSD and MOGAD.

Mult Scler Relat Disord

September 2022

Department of Neurology, National Neuroscience Institute (Tan Tock Seng Campus), Singapore, Singapore; Duke-NUS Medical School, Singapore, Singapore.

Background: In pre-vaccinated people with multiple sclerosis (MS), certain disease-modifying therapies (DMTs), particularly the anti-CD20 treatments, appear to be associated with an increased risk of COVID-19 infection and indeed with severe infection. It is still not known if such observations extend to vaccinated individuals and there have been considerably fewer studies in aquaporin-4-antibody neuromyelitis optica spectrum disorder (AQP4-NMOSD) and myelin oligodendrocyte glycoprotein-antibody associated disease (MOGAD) patients. In this study, we investigated the rates of symptomatic COVID-19 infection in adult patients with MS, AQP4-NMOSD and MOGAD who had received 2 doses of SARS-CoV-2 mRNA vaccine.

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