Cerebrovasc Dis Extra
January 2025
Introduction This case report illustrates the complexities of arrhythmogenic right ventricular cardiomyopathy (ARVC) and its thromboembolic complications resulting in top-of-basilar artery syndrome. We discuss the case of a 37-year-old male with ARVC who presented with acute onset of dizziness, imbalance, and vomiting, leading to the diagnosis of a top-of-basilar artery occlusion which was successfully treated. Case presentation This case highlights the diagnostic and acute treatment challenges in basilar artery occlusion (BAO) due to its non-specific symptoms and emphasizes the critical role of CT angiography in detecting occlusive thrombi for timely intervention.
View Article and Find Full Text PDFIntroduction: Myasthenia gravis (MG) can be classified according to clinical features into ocular MG (OMG) and generalised MG (GMG). However, OMG carries the risk of conversion to GMG. In this study, we aimed to determine the predictive factors for the secondary generalisation of OMG patients.
View Article and Find Full Text PDFAmyotroph Lateral Scler Frontotemporal Degener
October 2024
Objective: To apply the multistep model of pathogenesis in amyotrophic lateral sclerosis (ALS) to data from a multiethnic Malaysian registry.
Methods: Clinical data, including age at symptom onset, was collected from 289 patients who presented to our multidisciplinary clinic from 2016 until 2024. A least squares linear regression model was constructed from the logarithm of approximated incidence and the logarithm of age.
Background And Purpose: Myasthenia gravis (MG) is clinically heterogeneous and can be classified into subgroups according to the clinical presentation, antibody status, age at onset, and thymic abnormalities. This study aimed to determine the clinical characteristics and outcomes of generalized MG (GMG) patients based on these subgroups.
Methods: Medical records of MG patients from 1976 to 2023 were reviewed retrospectively.
Purpose: Describe real-life practice and outcomes in the management of post-stroke upper limb spasticity with botulinum toxin A (BoNT-A) in Asian settings.
Methods: Subgroup analysis of a prospective, observational study (NCT01020500) of adult patients (≥18 years) with post-stroke upper limb spasticity presenting for routine spasticity management, including treatment with BoNT-A. The primary outcome was goal attainment as assessed using goal-attainment scaling (GAS).
Introduction/aims: Muscle strength, functional status, and muscle enzymes are conventionally used to evaluate disease status in idiopathic inflammatory myopathies (IIM). This study aims to investigate the role of quantitative muscle ultrasound in evaluating disease status in IIM patients.
Methods: Patients with IIM, excluding inclusion body myositis, were recruited along with age- and sex-matched healthy controls (HC).
Introduction: There is an increasing need for a reproducible and sensitive outcome measure in patients with hereditary transthyretin amyloidosis (ATTRv) with polyneuropathy (PN) due to the emergence of disease modifying therapies. In the current study, we aimed to investigate the role of quantitative muscle ultrasound (QMUS) as a disease biomarker in ATTRv-PN.
Methods: Twenty genetically confirmed ATTRv amyloidosis patients (nine symptomatic, 11 pre-symptomatic) were enrolled prospectively between January to March 2023.
: Studies have suggested that, by applying certain nerve ultrasound scores, demyelinating and axonal polyneuropathies can be differentiated. In the current study, we investigated the utility of ultrasound pattern sub-score A (UPSA) and intra- and internerve cross-sectional area (CSA) variability in the diagnostic evaluation of demyelinating neuropathies. : Nerve ultrasound was performed in patients with chronic inflammatory demyelinating polyneuropathy (CIDP) and acute inflammatory demyelinating polyneuropathy (AIDP) and compared to patients with axonal neuropathies.
View Article and Find Full Text PDFWe report on our cohort of patients with chronic inflammatory demyelinating polyneuropathy (CIDP) who fulfilled the 2010 diagnostic criteria of CIDP. Patients were consecutively recruited and their demographics, clinical features and serological analysis of autoantibodies against neurofascin (NF)-155, NF-186, contactin-1 (CNTN1) and contactin-associated protein 1 were obtained. A total of 26 patients for which there was serologic testing were included: 22 typical CIDP, 3 distal CIDP and 1 multifocal CIDP.
View Article and Find Full Text PDFRecent studies have identified SOD1, FUS, TARDBP and C9orf72 as major ALS-related genes in both European and Asian populations. However, significant differences exist in the mutation frequencies of these genes between various ancestral backgrounds. This study aims to identify the frequency of mutations in the common causative ALS genes in a multi-ethnic Malaysian cohort.
View Article and Find Full Text PDFObjective: We aimed to develop a model to predict amyotrophic lateral sclerosis (ALS) disease progression based on clinical and neuromuscular ultrasound (NMUS) parameters.
Methods: ALS patients were prospectively recruited. Muscle fasciculation (≥2 over 30-seconds, examined in biceps brachii-brachialis (BB), brachioradialis, tibialis anterior and vastus medialis) and nerve cross-sectional area (CSA) (median, ulnar, tibial, fibular nerve) were evaluated through NMUS.
To investigate the patients' perception of their disease, its management and the impact of the COVID-19 pandemic on persons living with amyotrophic lateral sclerosis (ALS) in Malaysia. An online survey comprising 42 questions was conducted on ALS patients during the peak of the COVID-19 pandemic. Responses were received from 37/60 (62%) participants with ALS directly or through their caregivers.
View Article and Find Full Text PDFWe report the clinical and genetic characteristics of hereditary transthyretin amyloidosis in the multi-ethnic Malaysian population. Subjects with genetically confirmed transthyretin amyloidosis seen between 2001 till August 2020 were included. There were 30 patients and 14 asymptomatic carriers, of which 26 (59.
View Article and Find Full Text PDFBackground And Purpose: Several variants of Guillain-Barré syndrome (GBS) and Miller Fisher syndrome (MFS) exist, but their frequencies vary in different populations and do not always meet the inclusion criteria of the existing diagnostic criteria. However, the GBS classification criteria by Wakerley and colleagues recognize and define the clinical characteristics of each variant. We applied these criteria to a GBS and MFS cohort with the aim of determining their utility.
View Article and Find Full Text PDFAmyotroph Lateral Scler Frontotemporal Degener
August 2021
To compare two ALS staging systems, King's clinical staging and Milano-Torino (MiToS) functional staging, using prospective data from a multi-ethnic cohort of ALS patients. The stages of disease were determined prospectively based on existing definitions. The two systems were compared for timing of stages using box plots, correspondence using chi-square tests and association using Spearman's rank correlation.
View Article and Find Full Text PDFAim: The reported prevalence of peripheral neuropathy in systemic sclerosis (SSc) is variable between 0.01% to 28%, probably due to differences in sample size, study design and population. Our aim is to determine the prevalence of large fiber peripheral neuropathy in SSc and to identify any contributing factors.
View Article and Find Full Text PDFStudy Design: Prospective study.
Purpose: To investigate the prevalence and the associated risk factors of chronic neuropathic pain symptoms using painDETECT questionnaire in adolescent idiopathic scoliosis (AIS) patients who underwent posterior spinal fusion (PSF) surgery.
Overview Of Literature: Post-lumbar surgery syndrome is a disease entity that describes neuropathic pain following spinal surgery.
Amyotroph Lateral Scler Frontotemporal Degener
February 2021
Studies from multiethnic populations are rarely reported but do indicate differences in phenotypic presentation and survival in amyotrophic lateral sclerosis (ALS). In this study, we aimed to investigate the natural history of a cohort of ALS patients from a multiethnic population. : Data from ALS patients presenting to our multidisciplinary ALS clinic were prospectively collected from January 2015 to June 2020 as part of an ongoing hospital-based patient registry.
View Article and Find Full Text PDFPurpose: Thyrotoxic periodic paralysis is characterized by recurrent episodes of reversible, severe proximal muscle weakness associated with hypokalemia and hyperthyroidism. Prolonged exercise test is an easy, noninvasive method of demonstrating abnormal muscle membrane excitability in periodic paralyses. Although abnormal in thyrotoxic periodic paralysis patients, the effects thyroid hormone levels in non-thyrotoxic periodic paralysis thyrotoxicosis patients have not been well studied.
View Article and Find Full Text PDFJ Peripher Nerv Syst
September 2020
We aimed to evaluate the key diagnostic features of Guillain-Barré syndrome (GBS) in Malaysian patients and validate the Brighton criteria. This was a retrospective study of patients presenting with GBS and Miller Fisher syndrome (MFS) between 2010 and 2019. The sensitivity of the Brighton criteria was evaluated.
View Article and Find Full Text PDF