1.Neuronal Intranuclear Inclusion Disease Presented with Acute Aphasia
Jinyong KIM ; Su-Hyun PARK ; Hye-Rim SHIN
Journal of the Korean Neurological Association 2024;42(4):348-352
Neuronal intranuclear inclusion disease (NIID) is a rare disorder with slowly progressive neurodegeneration. Major clinical presentation is dementia, but some patients can have episodic symptoms. This is a rare case of NIID presented with acute aphasia. A 62-years-old male visited emergency room presenting with aphasia. On brain magnetic resonance imaging, a U-shaped diffusion high signal intensity lesion in bilateral frontal corticomedullary junction was observed. A skin biopsy showed intranuclear cytoplasmic inclusion bodies, so he was diagnosed as NIID.
2.Neuronal Intranuclear Inclusion Disease Presented with Acute Aphasia
Jinyong KIM ; Su-Hyun PARK ; Hye-Rim SHIN
Journal of the Korean Neurological Association 2024;42(4):348-352
Neuronal intranuclear inclusion disease (NIID) is a rare disorder with slowly progressive neurodegeneration. Major clinical presentation is dementia, but some patients can have episodic symptoms. This is a rare case of NIID presented with acute aphasia. A 62-years-old male visited emergency room presenting with aphasia. On brain magnetic resonance imaging, a U-shaped diffusion high signal intensity lesion in bilateral frontal corticomedullary junction was observed. A skin biopsy showed intranuclear cytoplasmic inclusion bodies, so he was diagnosed as NIID.
3.Neuronal Intranuclear Inclusion Disease Presented with Acute Aphasia
Jinyong KIM ; Su-Hyun PARK ; Hye-Rim SHIN
Journal of the Korean Neurological Association 2024;42(4):348-352
Neuronal intranuclear inclusion disease (NIID) is a rare disorder with slowly progressive neurodegeneration. Major clinical presentation is dementia, but some patients can have episodic symptoms. This is a rare case of NIID presented with acute aphasia. A 62-years-old male visited emergency room presenting with aphasia. On brain magnetic resonance imaging, a U-shaped diffusion high signal intensity lesion in bilateral frontal corticomedullary junction was observed. A skin biopsy showed intranuclear cytoplasmic inclusion bodies, so he was diagnosed as NIID.
4.Comparison of Factors Associated With Direct Versus Transferred-in Admission to Government-Designated Regional Centers Between Acute Ischemic Stroke and Myocardial Infarction in Korea
Dae-Hyun KIM ; Seok-Joo MOON ; Juneyoung LEE ; Jae-Kwan CHA ; Moo Hyun KIM ; Jong-Sung PARK ; Byeolnim BAN ; Jihoon KANG ; Beom Joon KIM ; Won-Seok KIM ; Chang-Hwan YOON ; Heeyoung LEE ; Seongheon KIM ; Eun Kyoung KANG ; Ae-Young HER ; Cindy W YOON ; Joung-Ho RHA ; Seong-Ill WOO ; Won Kyung LEE ; Han-Young JUNG ; Jang Hoon LEE ; Hun Sik PARK ; Yang-Ha HWANG ; Keonyeop KIM ; Rock Bum KIM ; Nack-Cheon CHOI ; Jinyong HWANG ; Hyun-Woong PARK ; Ki Soo PARK ; SangHak YI ; Jae Young CHO ; Nam-Ho KIM ; Kang-Ho CHOI ; Juhan KIM ; Jae-Young HAN ; Jay Chol CHOI ; Song-Yi KIM ; Joon-Hyouk CHOI ; Jei KIM ; Min Kyun SOHN ; Si Wan CHOI ; Dong-Ick SHIN ; Sang Yeub LEE ; Jang-Whan BAE ; Kun Sei LEE ; Hee-Joon BAE
Journal of Korean Medical Science 2022;37(42):e305-
Background:
There has been no comparison of the determinants of admission route between acute ischemic stroke (AIS) and acute myocardial infarction (AMI). We examined whether factors associated with direct versus transferred-in admission to regional cardiocerebrovascular centers (RCVCs) differed between AIS and AMI.
Methods:
Using a nationwide RCVC registry, we identified consecutive patients presenting with AMI and AIS between July 2016 and December 2018. We explored factors associated with direct admission to RCVCs in patients with AIS and AMI and examined whether those associations differed between AIS and AMI, including interaction terms between each factor and disease type in multivariable models. To explore the influence of emergency medical service (EMS) paramedics on hospital selection, stratified analyses according to use of EMS were also performed.
Results:
Among the 17,897 and 8,927 AIS and AMI patients, 66.6% and 48.2% were directly admitted to RCVCs, respectively. Multivariable analysis showed that previous coronary heart disease, prehospital awareness, higher education level, and EMS use increased the odds of direct admission to RCVCs, but the odds ratio (OR) was different between AIS and AMI (for the first 3 factors, AMI > AIS; for EMS use, AMI < AIS). EMS use was the single most important factor for both AIS and AMI (OR, 4.72 vs. 3.90). Hypertension and hyperlipidemia increased, while living alone decreased the odds of direct admission only in AMI;additionally, age (65–74 years), previous stroke, and presentation during non-working hours increased the odds only in AIS. EMS use weakened the associations between direct admission and most factors in both AIS and AMI.
Conclusions
Various patient factors were differentially associated with direct admission to RCVCs between AIS and AMI. Public education for symptom awareness and use of EMS is essential in optimizing the transportation and hospitalization of patients with AMI and AIS.
5.Technology trends and applications of deep learning in ultrasonography: image quality enhancement, diagnostic support, and improving workflow efficiency
Jonghyon YI ; Ho Kyung KANG ; Jae-Hyun KWON ; Kang-Sik KIM ; Moon Ho PARK ; Yeong Kyeong SEONG ; Dong Woo KIM ; Byungeun AHN ; Kilsu HA ; Jinyong LEE ; Zaegyoo HAH ; Won-Chul BANG
Ultrasonography 2021;40(1):7-22
In this review of the most recent applications of deep learning to ultrasound imaging, the architectures of deep learning networks are briefly explained for the medical imaging applications of classification, detection, segmentation, and generation. Ultrasonography applications for image processing and diagnosis are then reviewed and summarized, along with some representative imaging studies of the breast, thyroid, heart, kidney, liver, and fetal head. Efforts towards workflow enhancement are also reviewed, with an emphasis on view recognition, scanning guide, image quality assessment, and quantification and measurement. Finally some future prospects are presented regarding image quality enhancement, diagnostic support, and improvements in workflow efficiency, along with remarks on hurdles, benefits, and necessary collaborations.
6.Potential use of 3-(trimethoxysilyl)propyldimethyl octadecyl ammonium chloride as an antimicrobial and antiviral agent for the disinfection of personal protective equipment
Yujin KIM ; Hana YOUN ; Junbeom KIM ; Daye LEE ; Seonghye GO ; Ji-eun PARK ; Sunhak LEE ; Jinyong NOH ; Sang-Soep NAHM
Clinical and Experimental Vaccine Research 2020;9(2):174-178
Currently, no vaccine or established therapeutic agents are available for coronavirus disease 2019. The sharp increase in demand for personal protective equipment (PPE) necessitates an improvement in the protective efficacy of PPE. We evaluated the potential antimicrobial and antiviral effects of a surface-coating disinfectant (3-(trimethoxysilyl)propyldimethyl octadecyl ammonium chloride, Si-QAC) when applied onto PPE. Si-QAC-pre-coated PPE was artificially contaminated with either influenza virus or Salmonella. The results showed significantly reduced influenza and Salmonella titers in Si-QAC-coated PPE; these antimicrobial effects lasted 7 days. This suggests that this surface-coating disinfectant effectively reduces pathogen contamination of PPE, enabling their safe and long-term use.
7.Potential use of 3-(trimethoxysilyl)propyldimethyl octadecyl ammonium chloride as an antimicrobial and antiviral agent for the disinfection of personal protective equipment
Yujin KIM ; Hana YOUN ; Junbeom KIM ; Daye LEE ; Seonghye GO ; Ji-eun PARK ; Sunhak LEE ; Jinyong NOH ; Sang-Soep NAHM
Clinical and Experimental Vaccine Research 2020;9(2):174-178
Currently, no vaccine or established therapeutic agents are available for coronavirus disease 2019. The sharp increase in demand for personal protective equipment (PPE) necessitates an improvement in the protective efficacy of PPE. We evaluated the potential antimicrobial and antiviral effects of a surface-coating disinfectant (3-(trimethoxysilyl)propyldimethyl octadecyl ammonium chloride, Si-QAC) when applied onto PPE. Si-QAC-pre-coated PPE was artificially contaminated with either influenza virus or Salmonella. The results showed significantly reduced influenza and Salmonella titers in Si-QAC-coated PPE; these antimicrobial effects lasted 7 days. This suggests that this surface-coating disinfectant effectively reduces pathogen contamination of PPE, enabling their safe and long-term use.
8.Altered Functional Brain Networks in Patients with Traumatic Anosmia: Resting-State Functional MRI Based on Graph Theoretical Analysis
Mina PARK ; Jinyong CHUNG ; Jin Kook KIM ; Yong JEONG ; Won Jin MOON
Korean Journal of Radiology 2019;20(11):1536-1545
OBJECTIVE: Traumatic anosmia is a common disorder following head injury; however, little is known regarding its neural basis and influence on the functional networks. Therefore, we aimed to investigate the functional connectivity changes in patients with traumatic anosmia compared to healthy controls using resting-state functional magnetic resonance imaging (rs-fMRI). MATERIALS AND METHODS: Sixteen patients with traumatic anosmia and 12 healthy controls underwent rs-fMRI. Differences in the connectivity of the olfactory and whole brain networks were compared between the two groups. Graph theoretical parameters, such as modularity and global efficiency of the whole brain or olfactory networks, were calculated and compared. Correlation analyses were performed between the parameters and disease severity. RESULTS: Patients with traumatic anosmia showed decreased intra-network connectivity in the olfactory network (false discovery rate [FDR]-corrected p < 0.05) compared with that in healthy controls. Furthermore, the inter-network connectivity was increased in both the olfactory (FDR-corrected p < 0.05) and whole brain networks (degree-based statistic-corrected p < 0.05) in the anosmia group. The whole brain networks showed decreased modularity (p < 0.001) and increased global efficiency (p = 0.019) in patients with traumatic anosmia. The modularity and global efficiency were correlated with disease severity in patients with anosmia (p < 0.001 and p = 0.002, respectively). CONCLUSION: Traumatic anosmia increased the inter-network connectivity observed with rs-fMRI in the olfactory and global brain functional networks. rs-fMRI parameters may serve as potential biomarkers for traumatic anosmia by revealing a more widespread functional damage than previously expected.
Biomarkers
;
Brain
;
Craniocerebral Trauma
;
Humans
;
Magnetic Resonance Imaging
;
Olfaction Disorders
9.A Case of Bilateral Knee Septic Arthritis Caused by Pneumococcal Bacteremia.
Yo Han PARK ; Jong Chan LEE ; Junhyeon CHO ; Jinyong PARK ; Myeungcheol SHIN
The Korean Journal of Critical Care Medicine 2013;28(3):230-233
Pneumococcus can cause pneumonia, sinusitis, infective endocarditis, meningitis and primary bacteremia. However, few reports in the literature show bilateral septic arthritis with pneumococcal bacteremia. We report on a case of a 78-year old woman who presented with fever, pain and swelling in both knees. Both knee fluid aspirates were purulent with thick viscosity, and the gram stain revealed gram positive cocci in chains. The patient underwent emergent washing and arthroscopic debridement, followed with empirical antibiotics treatment. Two out of two blood cultures were positive for penicillin-susceptible Streptococcus pneumonia. Synovial fluid cultures were also positive for S. pneumoniae. The patient was treated with intravenous ceftriaxone for 4 weeks. Bilateral knee septic arthritis with pneumococcal bacteremia is rarely reported. Here we report on the case with a review of the literature.
Anti-Bacterial Agents
;
Arthritis, Infectious
;
Bacteremia
;
Ceftriaxone
;
Debridement
;
Endocarditis
;
Female
;
Fever
;
Gram-Positive Cocci
;
Humans
;
Knee
;
Meningitis
;
Pneumonia
;
Sepsis
;
Sinusitis
;
Streptococcus
;
Streptococcus pneumoniae
;
Synovial Fluid
;
Viscosity
10.Risk Factors for Febrile Neutropenia during Chemotherapy for HIV-Related Lymphoma.
Jinyong PARK ; Tae Min KIM ; Jeong Hwan HWANG ; Nak Hyun KIM ; Pyoeng Gyun CHOE ; Kyoung Ho SONG ; Eu Suk KIM ; Sang Won PARK ; Hong Bin KIM ; Nam Joong KIM ; Wan Beom PARK ; Myoung Don OH
Journal of Korean Medical Science 2012;27(12):1468-1471
We evaluated risk factors for neutropenic fever and febrile prolonged neutropenia during vincristine-including chemotherapy to treat HIV-related lymphoma to investigate whether protease inhibitor (PI) treatment is associated with infectious complications due to drug interactions with chemotherapeutic agents. We included all HIV patients who received chemotherapy including vincristine for lymphoma at a single referral center in 1999-2010. Neutropenic fever was defined as absolute neutrophil count < 500 cells/microL with body temperature over 38degrees C; and prolonged neutropenia was defined if it persisted over 7 days. CODOX-M/IVAC and Stanford regimens were considered high-risk regimens for prolonged neutropenia. We analyzed 48 cycles of chemotherapy in 17 HIV patients with lymphoma. There were 22 neutropenic fever and 12 febrile prolonged neutropenia events. In multivariate analysis, neutropenic fever was associated with old age and low CD4 cell count, but not with PI use or ritonavir-boosted PI use. Low CD4 cell count and high-risk regimens were associated with febrile prolonged neutropenia. Neutropenic fever and febrile prolonged neutropenia is associated with old age, low CD4 cell count, and high-risk regimens, but not PI use, in HIV patients undergoing chemotherapy including vincristine for lymphoma.
Adult
;
Age Factors
;
Antineoplastic Agents, Phytogenic/*therapeutic use
;
Body Temperature
;
CD4 Lymphocyte Count
;
Fever/*etiology
;
HIV Infections/complications
;
Humans
;
Lymphoma, AIDS-Related/complications/*drug therapy/pathology
;
Male
;
Middle Aged
;
Multivariate Analysis
;
Neutropenia/*etiology
;
Retrospective Studies
;
Risk Factors
;
Vincristine/*therapeutic use

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