Jin-Hyouk Kim

Jin-Hyouk Kim


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in Journal of Clinical Neurology
Verified
Journal Article
Open access
PDF file
JLJeeun Lee
Jeeun Lee
JLJeongjae Lee
Jeongjae Lee
MLMinwoo Lee
Minwoo Lee
JLJae-Sung Lim
Jae-Sung Lim
JKJin-Hyouk Kim
Jin-Hyouk Kim
BLByung-Chul Lee
Byung-Chul Lee
Lee J, et al. J Clin Neurol. 2021 Apr;17(2):206-212. https://doi.org/10.3988/jcn.2021.17.2.206

30 June 2022 in Pediatric Emergency Medicine Journal
Verified
Journal Article
Open access
PDF file
HKHong Min Kim
Hong Min Kim
SHSang Ook Ha
Sang Ook Ha
WYWon Seok Yang
Won Seok Yang
YPYoung Sun Park
Young Sun Park
JKJin-Hyouk Kim
Jin-Hyouk Kim
Purpose: In the coronavirus disease 2019 pandemic, it is essential to supplement the changes in visiting patterns of individual emergency departments (EDs) to determine how to allocate emergency medicine resources. We compared the clinical features of children visiting the ED before and during the pandemic.Methods: Children younger than 18 years who visited the ED from February 2019 through December 2020, except January 2020, were enrolled, and divided into those who visited before and after January 2020 (the pre-pandemic and pandemic groups, respectively). We compared the 2 groups in terms of the baseline characteristics (age, sex, mode and route of arrival, cause of visit, and time of visit), chief complaint, ED diagnosis, initial acuity and its accuracy, and ED outcomes (length of stay and disposition).Results: The 31,036 children were categorized into the pre-pandemic (21,027 [67.8%]) and pandemic (10,009 [32.2%]) groups with a 52.4% decrease in the number of visits to the ED in the latter group. This decrease was more prominent in age 2-5 years (from 37.3% to 33.2%; P < 0.001), fever as a chief complaint (from 27.8% to 16.5%), diagnoses related to infection or the respiratory system (from 36.8% to 14.3%) or transfer to the ED (from 8.1% to 6.4%; P < 0.001). In contrast, increases were noted in age 12-17 years (from 14.9% to 17.4%; P < 0.001), injury (from 36.5% to 52.5%; P < 0.001), visits in the evening (from 54.9% to 57.4%; P < 0.001), length of stay longer than 6 hours (from 3.5% to 6.3%; P = 0.033), and low acuity (from 97.8% to 98.2%; P = 0.031).Conclusion: The pandemic has brought about changes in visiting patterns of the ED. This study may help prepare strategies for the appropriate allocation and deployment of emergency medicine resources in the pandemic era.

YJYong-Won Jung
Yong-Won Jung
SHSang Ook Ha
Sang Ook Ha
JKJin-Hyouk Kim
Jin-Hyouk Kim
WYWon-Seok Yang
Won-Seok Yang
YPYoung-Sun Park
Young-Sun Park
We aimed to evaluate the overall clinical characteristics of patients treated by a neuro-emergency expert dedicated to the emergency department (ED) as an attending neurologist during the COVID-19 pandemic. We included adult patients who visited the ED between 1 January and 31 December 2020 and were treated by a neuro-emergency expert. We retrospectively obtained and analyzed the data on patients’ clinical characteristics and outcome. The neuro-emergency expert treated 1155 patients (mean age, 62.9 years). The proportion of aged 18–40 years was the lowest, and the most common modes of arrival were public ambulance (50.6%) and walk-in (42.3%). CT and MRI examinations were performed in 94.4 and 33.1% of cases, respectively. The most frequent complaints were dizziness (31.8%), motor weakness (24.2%), and altered mental status (15.8%). The ED diagnoses were acute ischemic stroke (19.8%), benign paroxysmal positional vertigo (14.2%), vestibular neuritis (9.9%), and seizure (8.8%). The mean length of stay in the ED was 207 min. Of the patients, 55.0% were admitted to the hospital, and 41.8% were discharged for outpatient follow-up. Despite the longer stay and the complexity and difficulty of neurological diseases during the COVID-19 pandemic, the accurate diagnosis and treatment provided by a neuro-emergency expert can be presented as a good model in the ED.

30 September 2025 in Brain Sciences
Verified
Journal Article
Open access
PDF file
BCbyung joon Choi
byung joon Choi
JKJin-Hyouk Kim
Jin-Hyouk Kim
WYWon Soek Yang
Won Soek Yang
YPYoung Sun Park
Young Sun Park
SHSang Ook Ha
Sang Ook Ha
Background: Incarcerated patients with neurological complaints present substantial diagnostic and care-delivery challenges in emergency departments (EDs). We delineate the clinical spectrum, severity, and outcomes among incarcerated patients managed in an ED with an embedded neuro-emergency expert model. Methods: A retrospective observational study of adult ED visits for neurological symptoms was conducted from September 2018 to June 2025 at a government-designated regional emergency center serving multiple correctional facilities. Incarceration was confirmed in the electronic medical record. Extracted variables included demographics, chief complaint, comorbidities, triage and acuity scale, Glasgow Coma Scale (GCS), neuroimaging, ED diagnoses, and outcomes (hospital admission, ICU care, ED/in-hospital mortality). Results: Sixty-five patients were included (median age 57.0 years [IQR 47.0–64.5]; 95% male). Chief complaints were altered mental status (36.9%), hemiparesis (21.5%), and seizures (13.8%). On arrival, 40.0% had GCS ≤ 12, including 23.1% with severe impairment (GCS 3–8). Non-contrast head CT was obtained in 95.4% and diffusion-weighted MRI in 38.5%. Frequent diagnoses were psychiatric/functional neurological disorder (16.9%), metabolic encephalopathy (15.4%), and acute ischemic stroke (12.3%). Serious conditions (stroke, hypoxic brain injury, central nervous system infection, status epilepticus, and neuroleptic malignant syndrome) were diagnosed in 41.5%. Hospital admission occurred in 63.1% (ICU care in 47.7%); in-hospital mortality was 10.8%. Conclusions: ED visits by incarcerated individuals with neurological complaints were often linked to serious diagnoses, ICU use, and mortality, challenging assumptions of exaggeration. Over two in five had stroke, hypoxic brain injury, central nervous system infection, or status epilepticus. The findings support rapid, systematic, bias-aware evaluation with early neurological involvement, clear imaging triggers, safety protocol, and expedited transfers from correctional facilities.

15 December 2024 in Journal of Geriatric Neurology
Verified
Journal Article
Open access
PDF file
BCbyung joon Choi
byung joon Choi
DKDaehoon Kim
Daehoon Kim
SHSang Ook Ha
Sang Ook Ha
YPYoung Sun Park
Young Sun Park
WYWon Seok Yang
Won Seok Yang
JKJin-Hyouk Kim
Jin-Hyouk Kim
Background: In Korea, many stroke patients receive medical care in geriatric hospitals after the acute management phase. However, the clinical characteristics of stroke patients admitted to geriatric hospitals have not been well-defined. This study aimed to investigate the medical and neurological complications as well as in-hospital mortality rates of stroke patients admitted to a geriatric hospital. Methods: Between January 2004 and December 2006, all stroke patients admitted to a geriatric hospital were prospectively registered. Demographic and clinical data, including the development of major complications after admission and in-hospital mortality and causes of death during the follow-up period until December 2008, were collected and analyzed.Results: A total 252 patients (mean age, 75.8±8.2 years; male, 41.7%) were included. Patients with ischemic stroke (79.4%) outnumbered those with hemorrhagic stroke (20.6%) by nearly fourfold. During the study period, 55.6% of patients experienced one or more major complications, with pneumonia (36.9%) being the most common. Logistic regression analysis identified age, indwelling catheterization, modified Rankin scale (mRS) score on admission, and length of hospital stay as independent risk factors for complications. In-hospital mortality rates at 1 month, 3 months, 6 months, and 1 year were 5.0%, 11.5%, 19.4%, and 31.0%, respectively. Age, mRS score and male sex were independent predictors of in-hospital mortality as determined by the Cox proportional hazards model.Conclusions: Pneumonia was the most prevalent complication and leading cause of death. Age and functional status were independent predictor of both complications and in-hospital mortality.

7 August 2022 in Brain Sciences
Verified
Journal Article
Open access
PDF file
SLSoon-Ho Lee
Soon-Ho Lee
SHSang Ook Ha
Sang Ook Ha
JKJin-Hyouk Kim
Jin-Hyouk Kim
WYWon-Seok Yang
Won-Seok Yang
YPYoung-Sun Park
Young-Sun Park
TPTae-Jin Park
Tae-Jin Park
We investigated the clinical characteristics, neuroimaging findings, and final diagnosis of patients with acute isolated or prominent dysarthria who visited the emergency department (ED) between 1 January 2020 and 31 December 2021. Of 2028 patients aged ≥ 18 years with neurologic symptoms treated by a neuro-emergency expert, 75 with acute isolated or predominant dysarthria within 1 week were enrolled. Patients were categorized as having isolated dysarthria (n = 28, 37.3%) and prominent dysarthria (n = 47, 62.7%). The causes of stroke were acute ischemic stroke (AIS) (n = 37, 49.3%), transient ischemic attack (TIA) (n = 14, 18.7%), intracerebral hemorrhage (n = 1, 1.3%), and non-stroke causes (n = 23, 30.7%). The most common additional symptoms were gait disturbance or imbalance (n = 8, 15.4%) and dizziness (n = 3, 13.0%) in the stroke and non-stroke groups, respectively. The isolated dysarthria group had a higher rate of TIA (n = 7, 38.9%), single and small lesions (n = 10, 83.3%), and small-vessel occlusion in Trial of Org 101072 in acute stroke treatment (n = 8, 66.7%). Acute isolated or prominent dysarthria in the ED mostly presented as clinical symptoms of AIS, but other non-stroke and medical causes were not uncommon. In acute dysarthria with ischemic stroke, multiple territorial and small and single lesions are considered a cause.