Publications by authors named "Junghae Ko"

Introduction: Neurological complications are common in patients with end-stage kidney disease (ESKD). However, the mechanisms underlying neurological complications of ESKD are poorly understood. Research on brain connectivity in patients undergoing peritoneal dialysis (PD) is limited.

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BackgroundSystemic sclerosis-associated interstitial lung disease (SSc-ILD) is a prominent form of connective tissue disease-associated interstitial lung disease with high prevalence and poor prognosis. The therapeutic use of corticosteroids is often limited, and the efficacy of conventional treatment may be suboptimal in certain cases. This systematic review and meta-analysis assessed the clinical effects of rituximab in SSc-ILD compared to conventional treatments and investigated potential clinical benefits in patients with disease progression despite conventional therapy.

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This study aimed to investigate the alterations in the intrinsic thalamic network in patients with poststroke epilepsy (PSE) based on electroencephalography (EEG) source-level analysis. This retrospective observational study followed the STROBE guidelines. Thirty-nine patients with stroke and PSE and 34 patients with stroke without PSE were enrolled.

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This study aimed to investigate alterations in a multilayer network combining structural and functional layers in patients with end-stage kidney disease (ESKD) compared with healthy controls. In all, 38 ESKD patients and 43 healthy participants were prospectively enrolled. They exhibited normal brain magnetic resonance imaging (MRI) without any structural lesions.

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Objectives: The choroid plexus plays a role in eliminating detrimental metabolites from the brain as an integral component of the glymphatic system. This study aimed to investigate alterations in choroid plexus volume in patients with end-stage renal disease (ESRD) compared with healthy controls.

Methods: We enrolled 40 patients with ESRD and 42 healthy controls.

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Article Synopsis
  • The study examined how structural connectivity and glymphatic system function differ between patients with temporal lobe epilepsy (TLE) and hippocampal sclerosis (HS) compared to healthy individuals.
  • Results indicated that patients with TLE and HS had higher assortativity coefficients and lower glymphatic function (measured by the DTI-ALPS index) than healthy controls, with no significant difference in glymphatic function between patients who responded well or poorly to antiseizure medication (ASM).
  • The findings suggest a link between structural changes in the brain's connectivity and the functionality of the glymphatic system in epilepsy, with age also influencing these measures in TLE and HS patients.
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Objectives: Studies have recently shown an alteration of the structural connectivity and a dysfunctional glymphatic system in patients with chronic kidney disease (CKD). In this study, we aimed to investigate the effects of the structural connectivity and glymphatic system on the cognitive function of patients with CKD.

Methods: We prospectively enrolled patients with CKD and healthy controls.

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Introduction: Patients with end-stage renal disease (ESRD) are known to have reduced structural and functional brain connectivity in the brain regions associated with cognitive function. However, the effect of dialysis on brain connectivity remains unclear. This study aimed to evaluate the effects of dialysis on structural brain connectivity in patients with ESRD.

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Background: End-stage kidney disease (ESKD) patients undergoing hemodialysis experience diverse neurological complications. This study investigated prefrontal cerebral blood volume (CBV) and cerebral blood flow (CBF) during hemodialysis using functional near-infrared spectroscopy (fNIRS) to analyze cerebral hemodynamic changes.

Methods: ESKD patients undergoing maintenance hemodialysis without a history of neurological disorders were enrolled prospectively.

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Article Synopsis
  • The study investigated the relationship between white matter (WM) tracts and severity of obstructive sleep apnea (OSA) using correlation tractography.
  • Participants (40 with OSA) underwent diffusion tensor imaging (DTI) to analyze various diffusion metrics and correlate them with the apnea-hypopnea index (AHI) as a measure of OSA severity.
  • Results showed a negative correlation between the AHI and fractional anisotropy (FA) values in several specific WM tracts, indicating OSA severity may involve changes in tissue properties rather than neuronal loss.
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Interstitial lung disease (ILD) encompasses a heterogeneous group of more than 200 diffuse parenchymal lung diseases with various clinical courses. Disease progression is one of the most important prognostic factors, and, the definition of progressive pulmonary fibrosis (PPF) has recently been established. This study aimed to estimate the prevalence, risk factors, and prognosis of PPF among patients with non-idiopathic pulmonary fibrosis (IPF) in real-world practice.

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Background: Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) is a common extra-articular clinical manifestation of rheumatoid arthritis (RA) that has negative impacts on morbidity and mortality. In addition, there has been no proven treatment for RA-ILD to date. Thus, we planned a meta-analysis of a literature search to confirm the clinical effects of antifibrotic agents in RA-ILD patients.

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Background: Idiopathic pulmonary fibrosis (IPF) is a progressive fibrotic lung disease with a poor prognosis. Pirfenidone is approved and widely used for the treatment of IPF and reduces lung function decline. The aim of this study was to evaluate the efficacy of different doses of pirfenidone for the prevention of disease progression in patients with IPF.

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Article Synopsis
  • The study investigated the relationship between white matter tracts in the brain and kidney function in patients with end-stage renal disease (ESRD) using advanced imaging techniques.
  • Ten ESRD patients underwent diffusion tensor imaging (DTI) before and after dialysis to assess changes in brain structure.
  • Results showed no correlation between white matter tract anisotropy and kidney function, but significant differences in diffusion density were found in certain brain areas after dialysis, indicating its impact on brain structure.
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Objective: To review the characteristics of distal middle cerebral artery (MCA) aneurysm treated by microsurgery, the detailed surgical options, and the clinical result.

Methods: We retrospectively reviewed cerebral aneurysm in the M2 and M3 segments of the MCA surgically treated between January 2015 and December 2022. The demographic data, aneurysm-related findings, type of surgical approach, surgical technique, and clinical outcomes of the enrolled patients were analyzed.

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Article Synopsis
  • - A study found that 64.7% of patients with idiopathic pulmonary fibrosis (IPF) had obstructive sleep apnea (OSA), which is linked to worse outcomes for these patients.
  • - Key risk factors for developing OSA include older age, higher body weight, and risk assessment results from the Berlin questionnaire.
  • - Factors indicating increased mortality in IPF patients include a shorter six-minute walk distance, experiencing acute exacerbations, and lower oxygen saturation during sleep.
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Idiopathic pulmonary fibrosis (IPF) is a progressive fibrotic lung disease with poor prognosis and cough is the one of most common and major symptoms in IPF. The aim of this study was to evaluate the clinical efficacy of a Mixture of Ivy Leaf Extract and Coptidis rhizome (Synatura®) in patients with IPF. This was a prospective, open-label, single-center, and single-arm study in Korea from October 2019 to September 2020.

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Introduction: It is a recent finding that glymphatic system dysfunction contributes to various neurological problems. The purpose of this research was to assess the function of the glymphatic system in neurologically asymptomatic early chronic kidney disease (CKD) patients and healthy controls, using diffusion tensor image analysis along perivascular space (DTI-ALPS) index.

Methods: In a prospective study, we included patients with early CKD who were asymptomatic for neurological issues and obtained clinical and laboratory data.

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Background: The purpose of this study was to examine glymphatic system function in patients with transient global amnesia (TGA), as well as to conduct a recurrence analysis.

Methods: We enrolled patients with TGA and healthy controls from our hospital retrospectively. The patients and healthy controls were all scanned with the same 3T scanner, which included diffusion tensor imaging (DTI).

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Article Synopsis
  • - This study aimed to explore how the glymphatic system function is altered in patients with cluster headache compared to healthy individuals.
  • - Researchers used MRI techniques, including diffusion tensor imaging (DTI), to measure the DTI-ALPS index in 14 patients and 23 controls, finding significantly lower values in headache patients.
  • - The results suggest potential glymphatic dysfunction in cluster headache patients, with further research needed to understand its relationship with the condition's underlying mechanisms.
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Objective: This study aimed to evaluate glymphatic system function in temporal lobe epilepsy (TLE) patients with hippocampal sclerosis (HS) in comparison to healthy controls, using diffusion tensor imaging (DTI)-analysis along the perivascular space (ALPS) method. We hypothesized that there is glymphatic system dysfunction in TLE patients with HS.

Methods: We retrospectively enrolled 25 TLE patients with HS and 26 age- and sex-matched healthy controls.

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Introduction: The aim of this study was to analyze the glymphatic system function and its relationship with clinical characteristics, global diffusion tensor imaging (DTI) parameters, and global structural connectivity in treatment-naïve patients with newly diagnosed focal epilepsy.

Methods: This retrospective single-center study investigated patients with focal epilepsy and healthy controls. All participants underwent routine brain magnetic resonance imaging and DTI.

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There have been few clinical studies of ECMO-related alterations of the PK of meropenem and conflicting results were reported. This study investigated the pharmacokinetics (PK) of meropenem in critically ill adult patients receiving extracorporeal membrane oxygenation (ECMO) and used Monte Carlo simulations to determine appropriate dosage regimens. After a single 0.

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Introduction: This study was conducted to better understand hemodialysis by reviewing the most-cited articles related to it.

Methods: We searched articles on the Web of Science and selected the 100 most frequently cited articles. Subsequently, we reviewed these articles and identified their characteristics.

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The aim of this study was to evaluate the feasibility of using a machine learning approach based on diffusion tensor imaging (DTI) to identify patients with juvenile myoclonic epilepsy. We analyzed the usefulness of combining conventional DTI measures and structural connectomic profiles. This retrospective study was conducted at a tertiary hospital.

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