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홍대영,백광제,이경룡,권운용,박준석,어은경,오범진,이미진,이성우,서주현,노형근,김준식,Hong, Dae-Young,Baek, Kwang-Je,Lee, Kyeong-Ryong,Kwon, Woon-Yong,Park, Joon-Seok,Eo, Eun-Kyung,Oh, Bum-Jin,Lee, Mi-Jin,Lee, Sung-Woo,Suh, Joo-Hyun,Roh, 대한임상독성학회 2007 대한임상독성학회지 Vol.5 No.1
Purpose: Owing to organophosphate-pyrethroid mixtures are widely used, suicidal or unintentional poisoning is common. But there have been relatively few reports of poisoning. The purpose of this study is to evaluate the difference of the severity and toxicity between organophosphate-pyrethroid mixtures poisoning and single organophosphate poisoning. Methods: From August 2005 to July 2006, 65 patients presented with organophosphate-pyrethroid mixtures poisoning to emergency medical center. Date were gathered by report form it was drawn up. Results: 65 patients were enrolled in 28 hospitals and their mean age was $56.5{\pm}16.2$ years old. The most common cause of poisoning was suicide, in 52 cases(80%). Chlorpyrifos-cypermethrin, malathion-esfenvalerate were the most frequent chemicals involved, and the mean ingestion amount was 135.4ml. The most common symptom of the patients was nausea/vomiting, in 16 patients. The average GCS score was 13. The mean ICU stay was $4.4{\pm}5.2$ days, and mortality was 3.1%. Conclusion: The severity and toxicity of organophosphate-pyrethroid mixture poisoning were lower than that of single organophosphate poisoning.
홍대영,엄욱현,이경미,김지혜,한승백,서주현,김준식,노형근,Hong Dae-Young,Um Wook-Hyun,Lee Kyoung-Mi,Kim Ji-Hye,Han Seung-Baik,Suh Joo-Hyun,Kim Jun-Sig,Roh Hyung-Keun 대한임상독성학회 2006 대한임상독성학회지 Vol.4 No.1
Dicamba is a benzoic acid and classified as a chemically related chlorophenoxy herbicide which is widely used for the control of broad-leaved weeds. While the chlorophenoxy herbicide poisoning is known to be uncommon, its ingestion can result in serious or sometimes fatal outcome. A 65-year-old man ingested about 300 ml of dicamba in a suicidal attempt and three hours later he was admitted hospital, complaining abdominal pain, nausea and vomiting. On admission his vital signs were normal and laboratory findings were not remarkable except metabolic acidosis in arterial blood gas analysis. Shortly after the admission endotracheal tube was inserted due to altered mental state and activated charcoal was given after performing gastric lavage. However, his vital signs became unstable 6hrs after the ingestion and mechanical ventilation was started with administration of inotropic agents. In spite of urine alkalization for rapid elimination of the absorbed dicamba, the metabolic acidosis was aggravated with concomitant rhabdomyolysis and acute renal failure, and he died 24 hrs after the ingestion.
공소정,권재현,홍대영,하민우,이준영,Kong, So-Jeong,Kwon, Jae-Hyun,Hong, Dae-Young,Ha, Min-Woo,Lee, Jun-Young 전력전자학회 2022 전력전자학회지 Vol.27 No.3
This paper proposes a test device designed for developing a high-voltage multilayer ceramic capacitor (MLCC). The proposed topology consists of an energy recovery circuit for charging/discharging capacitor, a flyback converter, and a boost converter for supplying power and a bias voltage application to the energy recovery circuit. The energy recovery circuit designed with a half-bridge converter has auxiliary switches operating before the main switches to prevent excessive current from flowing to the main switches. A prototype has been designed to verify the reliability of target capacitors following the voltage fluctuation with a frequency range below 65 kHz. To conduct high root mean square (RMS) current to the capacitor as a load, the MLCC test was conducted after the topology verification was completed through the film capacitor as a load. Through the agreement between the RMS current formula proposed in this paper and the MLCC test results, the possibility of its use was demonstrated for high-voltage MLCC development in the future.
메스암페타민 검사 양성 환자에 대한 임상적 고찰: 단일기관 연구
옥영빈,김진용,이경룡,홍대영,백광제,박상오,김종원,김신영,Ok, Young Bin,Kim, Jin Yong,Lee, Kyeong Ryong,Hong, Dae Young,Baek, Kwang Je,Park, Sang O,Kim, Jong Won,Kim, Sin Young 대한임상독성학회 2018 대한임상독성학회지 Vol.16 No.1
Purpose: Methamphetamine is an ongoing illegal drug problem worldwide, and its use in South Korea has spread over the last few years. In this study, a clinical review of patients who visited emergency medical centers with positive methamphetamine tests was conducted. Methods: Patients underwent methamphetamine screening based on physician suspicion over a period of 13 years. Their patient characteristics, clinical features, and drug administration properties were described. Results: A total of 297 patients were included, with 19 positive methamphetamine results. Patient age ranged from 21 to 84, with a mean of 37.52. Additionally, 13 were male and 6 were female. The mean BP, PR, RR were 131/82 mmHg, 94/min, 20/min. Saturation levels were all over 95%. Five patients had a psychiatric history. Patient showed varied symptoms ranging from mental changes to chest discomfort. In addition, seven showed abnormal electrocardiography findings and one showed elevated cardiac enzyme levels. Other laboratory results revealed no significantly abnormal results. Six patients also suffered from related trauma. The majority of patients consumed the methamphetamine orally, with unknown motivation at unknown locations. Most were transported by 119 and six patients co-ingested other drugs. Conclusion: Patients who showed positive results to a methamphetamine screening test in Korea visited the emergency medical center mostly by 119 and were unaware of or reluctant to reveal the fact that they had ingested methamphetamine. Emergency physicians should be more aware of the possibility that a patient may have consumed methamphetamine.
강진아 ( Jin Ah Kang ),김강호 ( Kang Ho Kim ),백진휘 ( Jin Hui Paik ),홍대영 ( Dae Young Hong ),김지혜 ( Ji Hye Kim ),이경미 ( Kyoung Mi Lee ),김준식 ( Jun Sig Kim ),한승백 ( Seung Baik Han ) 대한외상학회 2006 大韓外傷學會誌 Vol.19 No.1
Penetrating facial wounds are uncommon and are usually life threatening because of the possibility of brain damage. There are three possible pathways for penetrating the cranium through the orbit: via the orbital roof, via the superior orbital fissure, or between the optic canal and lateral wall of the orbit. Brain injuries resulting from the penetrating wounds show extensive parenchymal damage, hemorrhage, and brain edema. Transorbital penetrating wounds can lead to diverse lesions of the optical apparatus, including the eye globe, the optical nerve, and the chiasm. Moreover, intracerebral structures may be hurt, and bleeding and infection may occur. Early diagnosis and prompt debridement are the fundamental factors affecting the outcome of a penetrating facial wound. An 87-year-old man was admitted to the emergency department with a grinder impacted into the medial aspect of the right eye. On presentation, the man was fully conscious with a Glasgow Coma Scale score of 15 and complained of a visual disturbance of the right eye. Computed tomography demonstrated a right orbital medial and inferior wall fracture, a frontal bone fracture, and a contusional hemorrhage in frontal lobe of the brain. A craniotomy with hematoma removal and repair of the orbital floor was done. He showed no neurological deficits except right visual loss. This appears to be the first report of a man with a penetrating facial wound caused by a grinder, who presented with a potentially disastrous craniocerebral injury that did not lead to any serious neurological seguelae. (K Korean Soc Traumatol 2006;19:89-92)