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수직형 터널 환기구 점검을 위한 진단기술자 안전중심 진단장비 개발 및 시범적용
류호상 ( Ryu Ho Sang ),정현준 ( Jung Hyunjun ),김재범 ( Kim Jae Bum ),지기환 ( Jee Kee Hwen ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.2
In this paper, the on-site applicability review was carried out on the actual site so that the inspection equipment for inspection of tunnel vertical-type vent can be developed to promote the safety of the inspection engineer and improve the inspection cost.
백서에서 간외폐쇄성 황달의 간손상 및 Ursodeoxycholic Acid의 예방 효과
최원충(Won Choong Choi),류호상(Ho Sang Ryu),현진해(Jin Hai Hyun) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.2
N/A Background/Aims: Generally many reports were known that the liver function was decreased with different forms of extrahepatic obstructive jaundice. To clarify the mechanism of these hepatic dysfunction in extrahepatic obstructive jaundice, we studied histologica] and biochemical alterations of experimental rats with obstructive jaundice induced by common bile duct(CBD) ligation at two time periocL(group I) and the limiting effects of administration of ursodeoxycholic acid(UDCA) or NSAID(lndomethacin) on the histological and biochernical alterations(group II). Methods: In control, lO rats underwent laparotomy without CBD-ligation(sham-operation). In group I, the CBD of 20 rats was ligated by laparotomy. Three(group Ia) and Four(group Ib) weeks aft=r ligation and 4 weeks after in case of control rats, the liver was isolated and microscopic examination was done. In group II, 40 rats with ligation of CBD were ramdomly assigned to receive UDCA(25 mg/kg/day) for 15 rats and NSAID(indomethacin, 4 mg/kg/day) for 15 rats and placebo for 10 rats. Results: In the study of group I, bi]e ducts proliferation was observed from portal tracts to porta] tracts and to hepatic lobules in group la, and hepatic ]obules were destroyed by severe prc>]iferation and fibrosis, and the area ratio of hepatocytes and sinusoid was decreased relatively in thie microscopic field in group lb. In the study of group II, the decreased area ratio of hepatocytes and sinusoid was limited in UDCA treoted group, but not in indomethacin group. Biochemical abnormalities(s-GPT, alkaline phosphatase, tota] bilirubin) were not limited significantly in both drug treated groups. Conclusions: Impairment of liver function of the rats with extrahepatic obstrutive jaundice may be due to relatively decreased hepatocytes and sinusoid ratio by bile duct proliferation and interstitial fibrosis and this alteration may be prevented by administration of UDCA. (Korean J Gastroenterol 1996; 28:232 240)
현진해(Jin Hai Hyun),류호상(Ho Sang Ryu),이중건(Choong Keun Lee),김창덕(Chang Duck Kim),박균철(Kyun Chul Park),조인식(In Sik Cho),김의경(Eui Kyeong Kim),김남성(Nam Seong Kim),이재동(Jae Dong Lee) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
It is common to define double primary cancer as the case of primary malignant tumors of different histologic site origins in each other. Etiology of double primary cacer is not known exactly but there are many contributing factors and theories about double primary cancer development. Owing to advancement of diagnostic procedure, reported cases of double primary malignant tumors have been increased in number. But occurance rate of multiple prirnary malignant tumors is relatively rare. We report the two cases, which we have confirmed double promary malignant tumors of different site origins such as esophageal squamous cell carcinoma and stomach adenocarcinoma with gastric fiberoptic endoscopic biopsy.
현진해(Jin Hai Hyun),류호상(Ho Sang Ryu),김창덕(Chang Duck Kim),심경보(Kyung Bo Shin) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.2
N/A The purpose of the present syudy is to determine whether the serum concentration can represent as a tumor marker of gastric cancer, the extent of gastric cancer, and can reflect the liver metastasis of gastric cancer. The fasting serum copper concentration was measured in 8 healthy adult as normal controls, 26 gastric cancer and 55 patients with other cancer. The results were as follow: 1) The serum copper concentration was 120.25+25.12 mcg/dl in normal controls and 153+39.56 mcg/dl in patient with gastric cancer. 2) The serum copper concentrations of advanced gastric cancer patients (with liver metastasis) was markedly elevated than normal control, but not in patients with stageIIl gastric cancer. 3) The serum copper concentrations was more than 130 mcg/dl in most patients of stage llI gastric cancer and more than 150 mcg/dl in most patients of stage III gastric cancer and more than 150 mc/dl in stage IV gastric cancer (liver metastasis) patients. 4) The serum copper concentrations of lung and bile ductular cancer were more elevated than that of other malignancies. This results that serum copper concentration seems to be a simple and reliable tumor marker for the extent as well as liver metastasis of gastric cancer.
현진해(Jin Hai Hyun),류호상(Ho Sang Ryu),최향희(Hyang Hee Choi),송태진(Tae Jin Song),백세현(Sai Hyun Park),정성채(Seong Chae Jeong),김현위(Hyuen Wie Kim),김창덕(Chang Duck Kim) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
Tuberculosis of the pancreas is a rare disorder, little reported in the literature. It may not develop primarily within the pancreas, and may occur secondary to a focus elsewhere in the body. A 50-year-old woman presented with weight loss, epigastric pain and palpable abdominal mass. A diagnosi of inoperab]e carcinoma of the panceas was made after radiologic evaluation. But tubercu- losis of the pancreas was confirmed by sono guided fine needle aspiration biopsy. Completely recovery resulted following the admmistration of antituberculous chemotherapy.
현진해(Jin Hae Hyun),류호상(Ho Sang Ryu),김창덕(Chang Duck Kim),노경아(Kyung Ah Noh),문정섭(Jeong Seop Moon),김경수(Kyung Soo Kim) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.3
The Pyogenic granuloma is one of numerous forms of hemangioma that primarily involves skin and mucosa. It is a benign, polypoid tumor and easily bleeds. The cause of the pyogenic granuloma is the secondary infection with Botryomyces orgainism or Staphylococci. On histopathologic examination, the pyogenic granuloma shows exophytic growth associated with inflammatory characters. Most common sites of involvement are gingiva, finger, lip, face and tongue in the order of rarity. Several reported cases proved that the back, neck, and eyeballs were involved, also. However there was no reported cases about the involvement with gastrointestinal mucosa. We are to report a case of the pyogenic granulorna that involved upper esophagus.
현진해(Jin Hae Hyun),류호상(Ho Sang Ryu),김창덕(Chang Duck Kim),김혜랑(Hye Rang Kim),박종재(Jong Jae Park),김광희(Kwang Hee Kim) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.4
With progress in diagnostic procedures such as endoscopy and dye method, early diagnosis of esophageal cancer has become possible. Esophageal cancer shows poor prognosis generally, but shows variable outcome according to tumor invasion to underlying tissue. Esophageal cancer not infiltrated beyond submucosal layer without lymphatic invasion shows excellent postoperative outcome because of high curability of early esophageal cancer. We experienced a case of multiple, early esophageal cancer in a asymptomatic patient who visited for general check up, and was diagnosed by endoscopy and surgical specimen. The lesions were a polypoid lesion with irregular erosive surface and slightly elevated lesion on middle and lower esophagus respectively. The histopathologic finding revealed the moderately differentiated squamous carcinoma infiltrated to the level of submucosa. The patient was treated with surgical operation and discharged with cured condition.