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Heo Hyun Joo,Lee Ji Hye,Kim Yu Yil,Baek Seung Min,Kim Ki Man,Jung Da Wa 대한마취통증의학회 2020 Anesthesia and pain medicine Vol.15 No.3
Background: Endoscopic procedures of the esophagus are more complicated than those of other regions of the gastrointestinal tract. They have a relatively long procedure time and high risk of complications, such as perforation and bleeding. Perforations that occur during the procedure can accompany pneumoperitoneum and pneumomediastinum through leakage of insufflation air and cause severe ventilatory impairment.Case: A 58-year-old male patient underwent enucleation of leiomyoma in the esophagus using endoscopy under general anesthesia. Ventilatory impairment occurred 15 min after commencement of the procedure. Subsequently, subcutaneous emphysema and severe abdominal distension were observed. We suggested the possibility of microperforation during the procedure to the endoscopist, and he performed endoscopic clipping around the excision site of leiomyoma. Conclusions: Providing anesthetic care by anesthesiologists during endoscopic procedures is considered necessary for patient safety. Complications of endoscopic procedures can be detected and managed early without sequelae during anesthetic care.
Heo Yujin,Nayeon Choi,유건희,Chung Man Ki 대한후두음성언어의학회 2022 대한후두음성언어의학회지 Vol.33 No.1
Chronic invasive aspergillosis is a life-threatening disease, especially in immunocompromised patients. The diagnosis and treatment of tracheal aspergillosis (TA) are challenging because of its rarity and nonspecific clinical presentations. The treatment standard of TA has been medical treatment like other forms of invasive aspergillosis, but patients with medically resistant TA require surgical intervention. We demonstrated a successful surgical outcome of chronic invasive TA in a 16-year-old patient with immunocompromised status related to acute myelocytic leukemia.
Ordered Mesoporous Cu—Mn Metal Oxides for the Catalytic Decomposition of an Energetic Ionic Liquid
Heo, Sujeong,Hong, Sunghoon,Jeon, Bo Kyeong,Li, Chengbin,Kim, Ji Man,Jo, Young Min,Kim, Wooram,Jeon, Jong-Ki American Scientific Publishers 2018 Journal of Nanoscience and Nanotechnology Vol.18 No.1
<P>Ordered mesoporous Cu-Mn binary metal oxide (meso-CuMnOx) catalysts were successfully synthesized by a hard-templating method from a mesoporous silica template with a cubic Ia3d mesostructure (KIT-6) or hydrophobic KIT-6, exhibiting a well-developed crystalline framework, a regular pore size distribution and a high surface area. The copper and manganese elements in the mesoporous Cu-Mn binary metal oxides (meso-CuMnOx-N and meso-CuMnOx-HP), obtained from the KIT-6 and hydrophobic KIT-6, respectively, were homogeneously dispersed in the whole particles. The activities of meso-CuMnOx catalysts for the decomposition of a liquid monopropellant containing an energetic ionic liquid, ammonium dinitramide, were much higher than that over a CuMnOx catalyst prepared by a conventional precipitation method. This is attributed to the well-developed mesoporosity of the meso-CuMnOx catalysts. Among the mesoporous CuMnOx catalysts, the decomposition onset temperature over meso-CuMnOx-HP (87.9 degrees C) was found to be lower than that over meso-CuMnOx-N (100.4 degrees C), probably due to its higher mesoporosity and surface area.</P>
양성 및 악성 담관폐쇄로 인한 급성 담관염의 담즙과 혈액에서의 세균 동정
허재형,이재현,이만용,신기철,장효식,송승호,남승우,노임환 대한소화기학회 2002 대한소화기학회지 Vol.40 No.1
목적: 담관염은 대부분 세균성 감염에 의하여 발생되며 담관담석증같은 양성 담관염은 물론 악성 담관폐쇄 질환에서도 담관염이 유발될 수 있다. 본 연구에서는 양성 및 악성 담관 질환으로 인한 급성 담관염 환자에서 담즙과 혈액에서 세균 배양을 하여 담관세균의 동정 및 분포 빈도를 조사하였다. 대상 및 방법: 1996년 1월부터 1999년 12월까지 4년간 급성 담관염으로 진단된 환자들에서 응급 내시경적 역행성 담췌관조영술에 의해 삽입된 비담도배액관을 통해 배액술 당일에 담즙 배양과 혈액 배양을 시행하였다. 대상 환자들은 58예의 양성 담관염(간내담관담석증 19예, 간외 담관담석증 25예, 간내 및 간외담관담석증 14예)와 25예의 악성 담관염(Klatskin 종양 4예, 간외담관암 10예, 췌장암 9예, 간암의 담관 전이 2예)등 모두 83예였으며 혈액 세균 배양은 양성 담관염 환자 51예, 악성 담관염 환자 24예에서 시행되었다. 결과: 담관염에서 담즙 세균 배양상 96.3% (80/83예)에서, 혈액 세균 배양은 80.0% (60/75예)에서 양성 이었다. 58예의 양성 담관염의 담즙에서 가장 많이 배양된 균주는 Escherichia coli로 37.9% (22/58예)였고 다음이 Klebsiella spp. 29.3% (17/58예)였으며 그 뒤로 Enterobacter spp., Enterococcus spp.가 각각 13.8% (8/58예)의 순이었다. 양성 담관염의 혈액 배양에서는 담즙 배양의 결과와 유사하게 Escherichia coli가 39.2% (20/51예), Klebsiella spp. 21.6% (11/51예)가 가장 많이 차지하였다. 악성 담관폐쇄 질환으로 인한 담관염(n=25)에서는 담즙 배양상 Pseudomonas가 48.0% (12/25예)로 가장 많았고 다음으로 Escherichia coli 32.0% (8/25예), Klebsiella spp. 20.0% (5/25예)의 순이었으며 혈액배양(n=25)에서는 Pseudomonas와 Escherichia coli가 각각 33.3% (8/24예)로 가장 많았으며 Klebsiella spp. 16.7% (4/24예)의 순이었다. 혐기성 배양에서는 양성 담관 염에서 담즙과 혈액 배양에서 Bacteroides가 각기 1예로 1.7%, 2.0%의 적은 빈도를 보였다. 양성 담관염에서 담즙 배양상 2종 이상의 세균이 분리된 경우는 32.8% (19/58예)였고 혈액 배양에서도 2종 이상 다균주는 19.6% (10/51예)였다. 악성 담관염에서 2종 이상의 다균주가 분리된 경우는 담즙 배양에서 52.0% (13/25예), 혈액 배양에서는 54.2% (13/24예)였다. 결론: 양성 및 악성 담관염은 모두 대부분 세균이 관여하고 있으며 E.coli, Klebsiella spp., Pseudomonas aeruginosa 등이 주종을 차지하였다. Background/Aims: The purpose of the present study was to identify the major bacterial organisms in the patients with cholangitis due to benign and malinant bile duct obstruction. Methods: Bacterial culture was undertaken in the bile and blood specimens from eighty-three patients with acute cholangitis due to benign (n=58) or malignant (n=25) bile duct obstruction. Results: Bacteria were detected in 96.3% of bile and 80.0% of blood samples. We isolated 78 strains from 58 bile specimens and 54 strains from 51 blood samples of the patients with benign cholangitis. The major isolates were Escherichia coli and Klebsiella spp.. In the patients with malignant cholangitis, 35 strains and 26 strains were isolated from 25 bile specimens and 24 blood samples, respectively, and Pseudomonas aeruginosa and E. coli were prevalent. Two or more bacterial strains were isolated simultaneously in 19 (32.8%) of 58 benign bile duct obstruction and in 11 (44.0%) of 25 malignanct bile duct obstruction. Conclusions: Bacteria play a major role in the pathogenesis of acute cholangitis of malignancy as well as benign bile duct obstruction.
김만철(Man-Chul Kim),장태원(Tae-Won Jang),한용재(Yong-Jae Han),김주상(Han, Ju-Sang Kim),Ramasamy Harikrishnan,오덕철(Duck-Chul Oh),김기영(Ki-Young Kim),허문수(Moon-Soo Heo) 한국생명과학회 2009 생명과학회지 Vol.19 No.7
Physical and chemical analyses of water discharged from 4 crowded farms (Sungsan, Pyosun, Wimi and Daejung) in Jeju island were performed from July, 2006 to Dec, 2006, and the result of the analyses showed that hydrogen ion concentrations (pH) for water discharged from Sungsan farm was 7.74, Pyosun was 7.68, Wimi was 7.68 and Daejung was 7.7. Salinity levels for Sungsan, Pyosun and Wimi had an average of 31~33 ‰, indicating characteristics of far distance areas, whereas that of Daejung was 28.81%, which was far lower compared to regular sea water salinity. As the result of measuring dissolved oxygen (DO) for each area, each area showed first graded DO for each discharged water based on water quality level for each sea district. The result of measuring the temperature for discharged water showed that water temperatures for summer were 23~25℃, and those for winter were 16~18℃. Nitrogen concentrations for discharged water exceeded each sea area's water quality level in all farms. In the case of phosphate, its average value was 0.48 ㎎/ℓ for Sungsan, 0.55 ㎎/ℓ for Pyosun, 0.66 ㎎/ℓ for Wimi, and 0.44 mg/l for Daejung, and chemical oxygen demand (COD) was shown to be 1.5 ㎎/ℓ, 1.8 ㎎/ℓ, 1.6 ㎎/ℓ and 2.3 ㎎/ℓ for Sungsan, Pyosun, Wimi and Daejung respectively. For suspended solids (SS), the average concentration was 19.3 ㎎/ℓ, 21.2 ㎎/ℓ, 21.3 ㎎/ℓ and 18.5 ㎎/ℓ for Sungsan, Pyosun, Wimi and Daejung respectively. The results of physical and chemical analyses for discharged water in farms based on time showed that almost all items were shown to increase in the forenoon and decrease, overall, in the afternoon.