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정준모(Joon Mo Chung),정극수(Keuk Soo Chung),최용환(Yong Hwan Choi),김인호(In Ho Kim),김효석(Hyo Seuk Kim),김영재(Young Jae Kim) 대한소화기학회 1982 대한소화기학회지 Vol.14 No.1
N/A Clinical studies on patients with duodenal ulcer who visited endoscopy room of Kyungpook National University Hospital since 1976 were performed. Among these patients, we compared the number of patients with gastric or duodenal ulcer yearly, and some aspects of difference between 57 cases of old age(above 60 years) and 129 cases of young age(under 30 years) patients with duodenal ulcer. The results obtained were as follows. 1) In examined cases, number of patients with duodenal ulcer was progressively increased year by year and number of gastric ulcer was more prevalent than that of duodenal ulcer unti11979 when the ratio of gastric and duodenal ulcer became nearly same, and thereafter duodenal ulcer cases were begun more predominant about 2 times that of gastric ulcer in 1981 2) Comparing the sex distribution of old and young age group, male was predominant about 12 times of female cases in young age group and about 2.5 times in old. 3) Overall complications including bleeding, perforation, obstruction and others were seen in 63. 2% of old age group and in 48.1% of young. 4) In 8 weeks follow up cases that was possible although it was least in number, 8 cases were improved or healed in old age group but 5 cases out of 18 cases in young revealed no improvement by ordinary regimen.
간장 ( 肝臟 ) 및 담도 ( 膽道 ) : 간경변증을 동반한 간암 환자에 있어서 혈청 Complement의 진단적 의의
최용환(Yong Hwan Choi),김성록(Sung Rok Kim),곽규식(Kyu Sik Kwak),박재용(Jae Yong Park),김은영(Eun Young Kim),정준모(Jun Mo Chung),탁원영(Won Young Tak),송달효(Dal Hyo Song) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.4
N/A To evaluate the diagnostic accuracy of serum complement level as an early diagnostic tool of hepatocellular carcinoma in cirrhotic patient, we examined 22 cases of liver cirrhosis and 16 cases of liver cirrhosie with hepatocellular carcinama. The results are as follows; 1) In liver cirrhosis with hepatocellular carcinoma, serum complement level was higher than liver cirrhosis. 2) When the serum cornplement levels, C3; 61 mg/dl and C4; 41 mg/dl, were indicated as the cutoff value in differential diagnosis of liver cirrhosis and hepatocellular carcinoma with liver cirrhosis, the poeitive predictive value, negative predictive value, and accuracy were 90%, 75%, and 79%, respectively. 3) When in serum AFP level, the cutoff value was disclosed as 400 ng/ml, the positive predictive value, negative predictive value, and accuracy of serum alpha fetoprotein were 100%, 31%, and 74% respectively, 4) Considering combination of above described data of serum C3, C4 and AFP, the positive predietive value, negative predictive value, accuracy were 92%, 81%, 84% respectively. Based on these data, serum complement level may be used as a valuable tumor marker in the die oais of hepatocellular carcinoma in cirrhotic patient eapecially when it is considered together with rum alpha fetoprotein level.
간장및 담도 : B형 간염 바이러스에 의한 만성활동성 간염 환자에서 알파 인터페론의 치료 효과
최용환(Yong Hwan Choi),김성록(Sung Rok Kim),곽규식(Kyu Sik Kwak),박재용(Jae Yong Park),김은영(Eun Young Kim),정준모(Jun Mo Chung),탁원영(Won Young Tak) 대한소화기학회 1990 대한소화기학회지 Vol.22 No.2
N/A This study was designed to estimate the efficacy and safety of IFN-alpha in type B chronic active hepatitis patients. Thirty two cases were subcutaneously injected with IFN-alpha daily 3,000,000 units, three time a week for 12 weeks. The drug was administered while the patients were in the hospital for the first week, who were followed up after discharge once every month for four months. The follow-up continued for a maximum of 14 months depending on the conditions of the cases (mean +- SD: 7.3 +- 5.0 months). Twenty five cases, as a control group, were not treated with IFN-alpha and observed for 3 to 18 months (mean +- SD: 7.6 +- 3.4 months). The results were as follows. In the patients treated with IFN-alpha, disappearance of HBe antigen was observed in 9 of the 32 cases (28.1%), and anti-HBe appeared in 8 of 9 cases (8/32:25.0%). In the control group, disappearance of HBe antigen showed in 4 of 25 cases (16.0%). Of the 4 cases, one showed anti-HBe (1/25:4.0%). No significant difference of disappearance of HBe antigen between the two groups. Signifirant difference, however, was noted in the appearance of anti-HBe. Follow-up was made on serum HBV-DNA titer in 15 cases injected with IFN-alpha. The levels were lowest between two to three months in 12 cases, and in four months of the follow-up in one case. Five cases converted to negative, in all 5 cases HBe antigen disappeared. The seronegative ratio of the two groups showed no significant difference in family history of type B hepatitis, age, sex, histologic finding, initial HBV-DNA titer and aminotransferase level. The serum transferase level in the group with IFN-alpha treatment made a remarkable decrease after 4 weeks of treatmen. In control group, aminotransferase decreased but not significantly during follow-up. All patients treated with IFN-alpha complained of fever, myalgia and other minor side effects not serious as to require treatment. Thus this findings suggest that treatment of type B chronic active heaptitis patients with IFN-alpha 3,000,000 units daily, three times a week for 12 weeks appears to be a safe and relatively effective way.
베이커리 카페의 온라인 구전정보가 만족도 및 지속이용의도에 미치는 영향관계 - 만족도의 매개효과를 중심으로 -
최용환 ( Choi Young-hwan ) 한국호텔리조트학회 2024 호텔리조트연구 Vol.23 No.3
The purpose of this study is to verify the effect of emotional labor of bakery employees on job stress, the relationship between job stress and job burnout, and the mediating effect of job stress and job burnout. For the sample, 395 copies of bakery employees were used for the final analysis. As a result of the verification of the study. It was confirmed that the superficial and inner behavior of Hypothesis 1 had a positive (+) effect on job stress, the job stress of Hypothesis 2 had a positive (+) effect on job burnout, the job stress and turnover intention of Hypothesis 3 had a positive (+) effect on job burnout intention, and the job burnout of Hypothesis 4 had a positive (+) effect on turnover intention. Both job stress and the mediating effect of job burnout in Hypotheses 5 and 6 were found to have mediating effects. As a result of the study, it is judged that practical measures to provide appropriate working hours and breaks to restore job stress and job burnout of bakery employees are necessary. For example, it is necessary to support competency development that can give pleasure to employees who are not related to work, share job stress, job burnout, and self-achievement experiences that can lower job turnover intention in leisure time, and to recognize that it is necessary to have a break of your own.
소변 및 대변 검체를 통한 헬리코박터 파이로리 감염의 진단
이영학 ( Young Hak Lee ),이승엽 ( Seung Yup Lee ),김영탁 ( Young Tak Kim ),조창민 ( Chang Min Jo ),탁원영 ( Won Young Tak ),권영오 ( Young Oh Kwon ),김성국 ( Sung Kook Kim ),최용환 ( Yong Hwan Choi ),정준모 ( Joon Mo Chung ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<연구목적> 헬리코박터 파이로리 감염의 진단을 위해 최근 여러 가지 검사법들이 제시되어 왔는데 기존의 방법보다 손쉽게 검체를 얻을 수 있는 소변과 대변을 통한 진단에 대해 알아보고자 하였다. <대상 및 방법> 상부소화기증상을 주소로 본원 소화기내과에 방문하여 내시경을 시행한 41명의 환자를 대상으로 소변 및 대변을 채취하였는데 소변검사의 경우 요중 헬리코박터 항체 키트(Rapiurine(R))를 이용하여 감염여부를 조사하였고, 대변검사의 경우 효소면역법
최성곤(Sung Gon Choi),김영탁(Young Tak Kim),금민수(Min Su Geum),이양일(Yang Il Lee),권중구(Joong Gu Kwean),이창형(Chang Hyeong Lee),권영오(Young Oh Kweon),김성국(Sung Kook Kim),최용환(Young Hwan Choi),정준모(Joon Mo Chung) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.3
The raw carp bile has been known as having both nephrotoxic and hepatotoxic effects which mechanisms are not well-known. Review of previously reported literature revealed many cases that had clinical evidences of both hepatitis and renal failure but any case of isolated hepatitis without acute renal failure was not found. We experienced a case of acute toxic hepatitis without evidence of renal failure due to ingestion of raw carp bile, so we report this case with review of literature. (Korean J Gastroenterol 1995;28: 421 - 425)
만성활동성 간염과 간경변증 환자에서 혈청 4형 교원질의 의의
이양일(Yang Il Lee),최성곤(Seong Kon Choi),금민수(Min Soo Keum),김영탁(Young Tak Kim),권혁만(Hyeok Man Kweon),김대현(Dae Hyun Kim),최영환(Young Hwan Choi),김성국(Sung Kook Kim),권영오(Young Oh Kweon),최용환(Yong Hwan Choi),정준모(Joo 대한소화기학회 1997 대한소화기학회지 Vol.29 No.1
N/A Background/Aims: Liver biosy is usually used to assess the expect of hepatic fibrosis, however, it is limited hecause serious complications have been reperted accasionally and frequent examinations are not adequate, Recently, the serum level of type IV collagen-7S domain is known to reflect the activity of collagen synthesis in the process of fibrosis. We evaluate the clinical usefulness of serum type IV collagen as an indicator of hepatic fibrosis. Methods: Serurn levels of type IV collagen 7S domain were evaluated in 88 subjects including 20 healthy persons, 40 patients with chronic active hepatitis confirmed by liver biopsy and 28 patients with liver cirrhosis. The patients with chronic active hepatitis were classified as mild(18 cases), moderate(11 cases) and severe degree(11 cases) according to the histologic findings and the patients with liver cirrhosis were classified as Child A(10 cases), B(10 cases), C(8 cases) according to modified Childs classification. Serum level of type IV collagen-7S domain was measured by radioimmunoassay (RJA). Results: Serum type IV collagen-7S domain concentrations in patients with chronic active hepatitis and liver cirrhosis were significantly higher than those in healthy persons(p<0.05). And significant correlations between the patients with chronic active hepatitis and with liver cirrhosis were also found(p<0.05). When chronic active hepatitis was divided into mild, moderate and severe degree there was a statistical significances(p<0.05). And significant correlations were found between the serum type IV collagen and the grade of the modified Childs classification(p<0.05). Conclusions: These results suggest that the measurement of serum type IV co]lagen may be a simple, noninvasive method and sensitive rnarker of hepatic fibrosis and also may reflect tbe status of progression in cirrhosis. (Korean J Gastroenterol 1997; 29:65 - 73)
최용환(Yong Hwan Choi),곽규식(Kyu Sik Kwak),정준모(Jun Mo Jung),이경수(Kyung Su Lee),박재용(Jae Yong Park),김은영(Eun Young Kim) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.2
N/A For evaluating the efficacy of teprenone for gastric ulcer, we prescribed 50 mg of teprenone orally three times daily for 16 gastric ulcer patients and done follow up studies including gastric and biochemical tests. The results obtained were as follows: 1) Gastroscopic examination revealed remarkable improvement in 31.3% and moderate improvement in 25.0% of patients during 8 weeks. 2) Subjective symptoms such as epigastric pain, nausea, vomiting, anorexia and belching were subsided from 68.8% to 100% of patients. 3) No remarkable side effect were noted. These results suggest that teprenone is one of effective therapeutic drugs for gastric ulcer patients.
박영대 ( Young Dae Park ),정윤진 ( Yun Jin Chung ),전성우 ( Seong Woo Jeon ),조창민 ( Chang Min Cho ),탁원영 ( Won Young Tak ),권영오 ( Young Oh Kweon ),김성국 ( Sung Kook Kim ),최용환 ( Yong Hwan Choi ) 대한소화기학회 2007 대한소화기학회지 Vol.49 No.3
관강 내 십이지장 게실(intraluminal duodenal diverticulum, IDD)은 십이지장 제2부 내에 주머니 모양의 가로막을 가지는 드문 선천 이상이다. 환자는 무증상인 경우도 있으나, 반복적인 복통, 급성 췌장염 및 위장관 출혈을 동반할 수 있다. 저자 등은 급성췌장염과 위장관 출혈을 나타낸 IDD 1예를 경험하였다. 진단은 상부위장관조영술과 관상면 재구성 CT 영상에서 IDD의 특징적인 형태를 확인하여 진단하였다. 증상이 있는 IDD는 일반적으로 수술 절제를 일차적으로 고려하나, 이번 증례에서는 내시경을 이용하여 침형 절개도로 IDD 개구부를 절개한 후 박리 올가미를 이용한 결찰술을 시행하여 성공적인 결과를 얻었다. An intraluminal duodenal diverticulum (IDD) is a rare congenital anomaly consisted of a sac-like mucosal projection within the second portion of the duodenum. Even though most of cases are asymptomatic, patients may develop recurrent abdominal pain, pancreatitis, and gastrointestinal bleeding. We report a case of symptomatic IDD which presented as acute pancreatitis and obscure gastrointestinal bleeding. Diagnosis was made by typical findings of upper GI series and coronal reformatted CT images. Although surgical resection is the treatment of choice, endoscopic incision and ligation with detachable snare was performed which led to a good result. (Korean J Gastroenterol 2007;49:177-182)