Publications by authors named "Young Kyu Shim"

Introduction/aims: Novel disease-modifying approaches for spinal muscular atrophy (SMA) have highlighted the patient's perspective on functional changes over time. In this study, we evaluated the impact of nusinersen on the health-related quality of life (HRQoL) of patients with later-onset SMA and the caregiver burden.

Methods: We assessed the changes in HRQoL using the Pediatric Quality of Life Inventory 4.

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Introduction: Spinal muscular atrophy (SMA) is a degenerative neuromuscular disorder long recognized as the most common genetic cause of infantile mortality described so far. However, the emergence of some innovative therapies, such as nusinersen and onasemnogene abeparvovec (AVXS-101), have made it possible to change the disease course of SMA.

Methods: In this study, five SMA type 1 and one SMA type 2 patients who received AVXS-101 were enrolled (7-24 months of age when administered).

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Objective: Autosomal dominant (AD) guanosine triphosphate cyclohydrolase 1 (GCH1) deficiency is the most common cause of dopa-responsive dystonia (DRD). Patients with GCH1 deficiency are likely to experience diagnostic delay, but its consequences have not been described thoroughly in patients with early-onset disease. We describe the diagnostic delay and residual motor signs (RMS) observed in patients with early-onset (before 15 years of age) disease.

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Background: GNAO1 encephalopathy is a rare neurodevelopmental disorder characterized by distinct movement presentations and early onset epileptic encephalopathy. Here, we report the in-depth phenotyping of genetically confirmed patients with GNAO1 encephalopathy, focusing on movement presentations.

Results: Six patients who participated in Korean Undiagnosed Disease Program were diagnosed to have pathogenic or likely pathogenic variants in GNAO1 using whole exome sequencing.

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Objective: To investigate the clinical features and long-term outcomes of pediatric Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis.

Methods: Thirty-two anti-NMDAR encephalitis patients with positive anti-NMDAR antibody test results were recruited. Clinical outcomes were evaluated using the Clinical Assessment Scale in Autoimmune Encephalitis (CASE) and the modified Rankin Scale (mRS).

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Background And Purpose: The aim of this study was to expand the understanding of the genotype-phenotype spectrum of -related disorders and to evaluate the therapeutic effect of a ketogenic diet in patients with alternating hemiplegia of childhood (AHC).

Methods: The clinical information of 13 patients with mutations was analyzed by performing retrospective chart reviews. Patients with the AHC phenotype who consented to ketogenic diet were included in the trial.

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Objective: To reveal the changes of centrotemporal spikes that occur during the disease course of self-limited epilepsy with centrotemporal spikes (SLECTS).

Method: We retrospectively reviewed the serial EEGs of 63 patients with SLECTS from initial diagnosis to remission. There were 32 patients who did not undergo treatment and 31 patients who underwent treatment with oxcarbazepine (OXC).

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Introduction: The identification of LMNA-related muscular dystrophy is important because it poses life-threatening cardiac complications. However, diagnosis of LMNA-related muscular dystrophy based on clinical features is challenging.

Methods: We reviewed the clinical phenotypes of 14 children with LMNA variants, focusing on the cardiac function and genotypes.

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Article Synopsis
  • Childhood chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is a rare condition with unclear optimal treatment strategies, especially in difficult cases.
  • In a study analyzing 14 pediatric cases over 12 months, it was found that plasmapheresis worked better than IVIG for monophasic cases, while both treatments were similarly effective for polyphasic cases.
  • For polyphasic patients unresponsive to first-line treatments, cyclosporine proved effective in achieving disease control, with some patients experiencing minimal symptoms and no relapses in the long term.
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Background And Purpose: This study investigated the seizure recurrence rate and potential predictors of seizure recurrence following antiepileptic drug (AED) withdrawal after resective epilepsy surgery in children with focal cortical dysplasia (FCD).

Methods: We retrospectively analyzed the records of 70 children and adolescents with FCD types I, II, and IIIa who underwent resective epilepsy surgery between 2004 and 2015 and were followed for at least 2 years after surgery.

Results: We attempted AED withdrawal in 40 patients.

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