1.A Rare Midbrain Syndrome with Bilateral Cerebellar Ataxia and Isolated Superior Rectus Palsy: Wernekinck Commissure Syndrome
Khanghee CHOI ; Yong-Won KIM ; Woochan CHOI
Journal of the Korean Neurological Association 2024;42(2):175-178
Wernekinck commissure syndrome is a rare midbrain syndrome, usually resulting in selective destruction of the decussation of the superior cerebellar peduncle. This syndrome can present with symptoms such as bilateral cerebellar ataxia, ophthalmoplegia, and palatal tremor. Here, we report a 61-year-old female with acute onset of bilateral cerebellar ataxia and isolated superior rectus palsy diagnosed on Wernekinck commissure syndrome confirmed by magnetic resonance imaging.
2.A case of mild CADASIL patient with a novel heterozygous NOTCH3 variant
WooChan CHOI ; Yang-Ha HWANG ; Jong-Mok LEE
Journal of Genetic Medicine 2022;19(1):38-41
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a single-gene disease caused by mutations in the neurogenic locus notch homolog protein 3 (NOTCH3) gene. The spectrum of clinical manifestations is broad, ranging from asymptomatic to typical ischemic stroke, and mainly depends on the location of the mutations. We describe the case of a 76-year-old female without apparent neurological deficits. However, brain magnetic resonance imaging revealed confluent lesions in the white matter. Direct sequencing of the NOTCH3 gene revealed a novel pathogenic mutation, c.811T>A, which results in a mild phenotype. Therefore, this report will expand the current knowledge in regards to the mutations that can cause CADASIL.
3.Homonymous Central Scotomatous Visual Field Defect in a Patient with Lateral Geniculate Nucleus Infarction
Daeun SHIN ; Khanghee CHOI ; Yong-Won KIM ; Woochan CHOI
Journal of the Korean Neurological Association 2024;42(2):171-174
Incongruous visual field defects, such as sectoranopia, can result from lateral geniculate nucleus infarction. We present a rare case of right lateral geniculate nucleus infarction that manifests as a left inferior homonymous paracentral scotoma. According to the retinotopic organization of the visual tract, central vision from the macula is delivered to the occipital pole via the posterior portion of the lateral geniculate nucleus. Consequently, not only can occipital pole infarction lead to central visual loss, but partial lateral geniculate nucleus infarction can also produce similar manifestations of central visual loss.
4.A Transfer of Silver Nanoparticles from Pregnant Rat to Offspring.
Yeonjin LEE ; Jonghye CHOI ; Pilje KIM ; Kyunghee CHOI ; Suhyon KIM ; Woochan SHON ; Kwangsik PARK
Toxicological Research 2012;28(3):139-141
Silver nanoparticles (size: 7.9 +/- 0.95 nm, dosage: 250 mg/kg) were orally administered to pregnant rats. At 4 days after parturition, four pups were randomly selected (one pup from one dam) and silver level in liver, kidney, lung and brain was determined by ICP-MS and electron microscope. As results, silver nanoparticles highly accumulated in the tissues of the pups. Silver level in the treated group was 132.4 +/- 43.9 ng/g in the kidney (12.3 fold compared to control group), 37.3 +/- 11.3 ng/g in the liver (7.9 fold), 42.0 +/- 8.6 ng/g in the lung (5.9 fold), and 31.1 +/- 4.3 ng/g in the brain (5.4 fold). This result suggested that the possible transfer of silver nanoparticles from pregnant dams to the fetus through mainly placenta.
Animals
;
Brain
;
Electrons
;
Fetus
;
Kidney
;
Liver
;
Lung
;
Nanoparticles
;
Parturition
;
Placenta
;
Rats
;
Silver
5.A Comparative Study Between Newly Developed Wave-form and Traditional Straight-form Splints.
Sehui KIM ; Woochan JEON ; Jisook LEE ; Choung Ah LEE ; Sangcheon CHOI ; Yoonseok JUNG ; Giwoon KIM ; Won Gabriel CHUNG
Journal of the Korean Society of Emergency Medicine 2012;23(6):869-873
PURPOSE: Widely used fiberglass splints are made from straight-form material. These prove difficult to mold at joints and form wrinkles, causing complications such as pain, pressure sores, and peripheral nerve palsy. We compared the usefulness of wave-form splints with straight-form splints and the level of satisfaction of these designs from care providers and wearers. METHODS: Eighty-nine (n=89) emergency physicians and orthopedic surgeons participated in this study. The subjects (acting as care providers and mock patients) used wave-form and straight-form material to construct and wear short leg splints, long arm splints, and sugar tong splints. The clinicians were surveyed on their satisfaction as providers and wearers. All questions were measured on scores from 0 and 10(10=maximum score). After splints were removed, subjects were surveyed on the extent of splint wrinkling with scores from 1 to 3(3=maximum wrinkling). RESULTS: Provider satisfaction scores for wave-form splints versus straight-form splints in short leg splint applications were 7.76+/-1.30 vs 6.74+/-1.25 (p=0.000). Provider satisfaction scores for wave-form splints versus straight-form splints in long arm splint applications were 7.73+/-1.33 and 6.73+/-1.59 (p=0.004), respectively. The subjects felt more comfortable wearing wave-form splints, compared to straight-form splints (7.79+/-1.49 vs. 6.79+/-1.58, respectively; p=0.004) and more satisfied (8.03+/-1.35 vs. 7.18+/-1.33, respectively; p=0.003). The frequencies of wrinkle occurrence in wave-form and straight-form splints were 29.7% and 42.2%, respectively (p=0.02). CONCLUSION: Wave-form splints may be more practical for molding and wearing than traditional straight-form splints.
Arm
;
Casts, Surgical
;
Emergencies
;
Fungi
;
Glass
;
Immobilization
;
Joints
;
Leg
;
Orthopedics
;
Paralysis
;
Peripheral Nerves
;
Pressure Ulcer
;
Splints
6.Acute Ischemic Stroke Caused by Detachment of Cardiac Papillary Fibroelastomas
Minhee KIM ; Daeun SHIN ; WooChan CHOI ; Dong-Seok GWAK ; Man-Hoon HAN ; Yang-Ha HWANG ; Yong-Won KIM
Journal of the Korean Neurological Association 2022;40(2):148-151
Cardiac papillary fibroelastomas are associated with a high risk of systemic embolization in spite of benign nature. We report a case of 85-year-old patient with left supraclinoid internal carotid artery occlusion who treated with aspiration thrombectomy. Despite of the absence of residual mass on echocardiography, we could analyze pathologic specimens using retrieved embolus and confirmed cardiac papillary fibroelastoma as a rare cause of stroke.
7.Comparison of the Clinical Characteristics of Pediatric Poisoning Patients Who Visited Emergency Department Before and During the COVID-19 Pandemic
Jeewoon PARK ; Woochan JEON ; Yura KO ; Yoo Jin CHOI ; Heewon YANG ; Jisook LEE
Journal of Korean Medical Science 2022;37(47):e337-
Background:
We aimed to investigate changes in the clinical characteristics of pediatric poisoning patients who visited the emergency department (ED) before and during the coronavirus disease 2019 (COVID-19) pandemic.
Methods:
Poisoning cases below age 18 who visited the ED from January 2018 to December 2021 were retrospectively analysed. The study period was then divided into pre-COVID-19 and COVID-19 pandemic to compare poisoning patterns.
Results:
During the study period, 86,153 visits to the pediatric ED had been recorded, with 625 patients being included the final analysis. During the COVID-19 period, the proportion of poisoned patients increased from 0.62% to 0.98%. The average age of the patients was higher in the COVID-19 period, with 53.4% of the cases being intentional (pre-COVID-19, 32.5%; P < 0.001). Moreover, 70.4% of poisoning cases during the COVID-19 period were caused by drugs (pre-COVID-19, 60.6%; P = 0.038). More patients underwent decontamination and laboratory investigation during the COVID-19 period than during the previous period (P= 0.007 and P < 0.001, respectively). The length of ED stay and the proportion of hospitalisation were significantly greater during the COVID-19 period. After analysing accidental poisoning cases, we found that antipyreticsonsteroidal anti-inflammatory drugs and respiratory drugs were more common in the pre-COVID-19 group, whereas iron/vitamins, cardiovascular drugs and hormones were more common in the COVID-19 group. After analysing intentional poisoning cases, we found that 73.6% and 76.4% of the patients in the pre-COVID-19 and COVID-19 group had a history of psychiatric disease, respectively. Although no difference was observed in the frequency of previous first suicide attempts, 19.0% of the patients in the COVID-19 group attempted suicide more than three times.
Conclusion
During the COVID-19 pandemic, intentional poisoning cases, especially in adolescence, increased and were treated more. Many of the patients with intentional poisoning had a history of mental illness or suicide in the past. Therefore, it seems that policy consideration for mentally vulnerable adolescents during this new pandemic period is necessary.
8.Investigating the trends and types of electric scooter accidents related toalcohol use in South Korea: a retrospective observational study
Dongyeon LEE ; Kyung Hwan KIM ; Dong Wun SHIN ; Woochan JEON ; Minkyung OH ; Sung-Hyuk CHOI
Journal of the Korean Society of Emergency Medicine 2024;35(4):301-308
Objective:
This study analyzed the characteristics and accident patterns of electric scooter accidents using in-depth survey data from 23 hospital emergency rooms (ER) in Korea. The characteristics of accident types were examined depending on alcohol consumption.
Methods:
An in-depth investigation was conducted on ER patients involved in electric scooter accidents between 2014 and 2021. The research focused on variables such as age, time of ER visit, alcohol use, emergency room discharge outcome, injury severity, and areas of injury.
Results:
One thousand nine hundred and sixty-two electric scooter injuries were examined. The riders belonged predominantly to the 20-39 years age group (60.40%), and most were males (69.67%). Visits to the ER peaked between 6 pm and 12 am (36.29%). Alcohol was implicated in 24.52% of the accidents. Head and neck injuries occurred commonly (60.70%). The number of accidents increased from 4 to 843. Moreover, alcohol-related incidents surged annually, except during 2014-2015. The alcohol use group comprised more males than the non-alcohol use group (79.42% vs. 66.51%). Accidents occurred more commonly in the 20-39 years age group (76.92% vs. 55.03%), and a higher proportion of emergency room visits occurred between 0 am and 6 am (58.84% vs. 39.43%). Cases with severe Excess Mortality Ratio-adjusted Injury Severity Scores were more frequent (29.29% vs. 12.97%), and head and neck injuries were more common (83.78% vs. 53.21%).
Conclusion
The regulations for licensing, alcohol use, and helmet compliance should be enforced to reduce the incidence of alcohol-related electric scooter accidents in the younger population.
9.Investigating the trends and types of electric scooter accidents related toalcohol use in South Korea: a retrospective observational study
Dongyeon LEE ; Kyung Hwan KIM ; Dong Wun SHIN ; Woochan JEON ; Minkyung OH ; Sung-Hyuk CHOI
Journal of the Korean Society of Emergency Medicine 2024;35(4):301-308
Objective:
This study analyzed the characteristics and accident patterns of electric scooter accidents using in-depth survey data from 23 hospital emergency rooms (ER) in Korea. The characteristics of accident types were examined depending on alcohol consumption.
Methods:
An in-depth investigation was conducted on ER patients involved in electric scooter accidents between 2014 and 2021. The research focused on variables such as age, time of ER visit, alcohol use, emergency room discharge outcome, injury severity, and areas of injury.
Results:
One thousand nine hundred and sixty-two electric scooter injuries were examined. The riders belonged predominantly to the 20-39 years age group (60.40%), and most were males (69.67%). Visits to the ER peaked between 6 pm and 12 am (36.29%). Alcohol was implicated in 24.52% of the accidents. Head and neck injuries occurred commonly (60.70%). The number of accidents increased from 4 to 843. Moreover, alcohol-related incidents surged annually, except during 2014-2015. The alcohol use group comprised more males than the non-alcohol use group (79.42% vs. 66.51%). Accidents occurred more commonly in the 20-39 years age group (76.92% vs. 55.03%), and a higher proportion of emergency room visits occurred between 0 am and 6 am (58.84% vs. 39.43%). Cases with severe Excess Mortality Ratio-adjusted Injury Severity Scores were more frequent (29.29% vs. 12.97%), and head and neck injuries were more common (83.78% vs. 53.21%).
Conclusion
The regulations for licensing, alcohol use, and helmet compliance should be enforced to reduce the incidence of alcohol-related electric scooter accidents in the younger population.
10.Investigating the trends and types of electric scooter accidents related toalcohol use in South Korea: a retrospective observational study
Dongyeon LEE ; Kyung Hwan KIM ; Dong Wun SHIN ; Woochan JEON ; Minkyung OH ; Sung-Hyuk CHOI
Journal of the Korean Society of Emergency Medicine 2024;35(4):301-308
Objective:
This study analyzed the characteristics and accident patterns of electric scooter accidents using in-depth survey data from 23 hospital emergency rooms (ER) in Korea. The characteristics of accident types were examined depending on alcohol consumption.
Methods:
An in-depth investigation was conducted on ER patients involved in electric scooter accidents between 2014 and 2021. The research focused on variables such as age, time of ER visit, alcohol use, emergency room discharge outcome, injury severity, and areas of injury.
Results:
One thousand nine hundred and sixty-two electric scooter injuries were examined. The riders belonged predominantly to the 20-39 years age group (60.40%), and most were males (69.67%). Visits to the ER peaked between 6 pm and 12 am (36.29%). Alcohol was implicated in 24.52% of the accidents. Head and neck injuries occurred commonly (60.70%). The number of accidents increased from 4 to 843. Moreover, alcohol-related incidents surged annually, except during 2014-2015. The alcohol use group comprised more males than the non-alcohol use group (79.42% vs. 66.51%). Accidents occurred more commonly in the 20-39 years age group (76.92% vs. 55.03%), and a higher proportion of emergency room visits occurred between 0 am and 6 am (58.84% vs. 39.43%). Cases with severe Excess Mortality Ratio-adjusted Injury Severity Scores were more frequent (29.29% vs. 12.97%), and head and neck injuries were more common (83.78% vs. 53.21%).
Conclusion
The regulations for licensing, alcohol use, and helmet compliance should be enforced to reduce the incidence of alcohol-related electric scooter accidents in the younger population.