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이준혁(Joon Hyoek Lee),고광철(Kwang Cheol Koh),백승운(Seung Woon Paik),심상군(Sang Goon Shim),류광현(Kwang Hyun Ryu),이풍렬(Poong Lyul Rhee),김재준(Jae Jun Kim),이종철(Jong Chul Rhee),최규완(Kyoo Wan Choi),이석호(Suk Ho Lee),이규택(K 대한내과학회 1999 대한내과학회지 Vol.56 No.1
Objectives : The purpose of present study is to investigate the influence of a spinal gamma-aminobutyric acid B (GABAB) receptor on a central regulation of blood pressure(BP) and heart rate(HR), and to define its mechanism in the spinal cord. Methods : In urethane-anesthetized, d-tubocurarine- paralyzed and artificially ventilated male Sprague-Dawley rats, intrathecal administration of drugs were carried out using injecton cannula(33-gauge stainless steel) through the guide cannula(PE 10) which was inserted intrathecally at lower thoracic level through the puncture of a atlantooccipital membrane. Results : Intrathecal injection of an GABAB receptor agonist baclofen(30, 60, 100 nmol) decreased both blood pressure and heart rate dose-dependently. Pretreatment with 8-bromo-cAMP(50 nmol), a cAMP analog or glipizide(50 nmol), a ATP-sensitive K+ channel blocker attenuated the depressor and bradycardic effects of baclofen (100 nmol) but not with 8-bromo-cGMP(50 nmol) a cGMP analog. Conclusions : The GABAB receptor in the spinal cord plays an inhibitory role in central cardiovascular regulation and that this depressor and bradycardic actions are mediated by the decrease of cAMP via the inhibition of adenylate cyclase and the opening of K+ channel.
포스터 전시 : 간 ; 간세포암의 고주파 열치료후에 발생한 Clostridium 간농양 1예
김경희 ( K. H. Kim ),이준혁 ( J. H. Lee ),최문석 ( M. S. Choi ),고광철 ( K. C. Koh ),김재준 ( J. J. Kim ),백승운 ( S. W. Paik ),이종철 ( J. C. Rhee ),최규완 ( K. W. Choi ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
고주파 열치료는 전극이 부착된 바늘을 이용하여 간암 병소 내에서 열을 발생시켜 조직의 괴사를 만들어 암세포를 파괴시키는 국소 치료법으로 최근 이에 대한 관심과 시행 건수가 증가하고 있으며 비교적 안전하고 상당히 효과적인 치료법으로 보고되고 있다. 아직까지 고주파 열치료 후 발생한 Clostridium 감염은 아직 보고된바 없는데 연자 등은 고주파 열치료를 시행한 간암 환자에서 Clostridium 감염에 의한 간농양이 발생한 예를 경험하였기에 보고하는
송인성(I S Song),최규완(K W Choi),김정룡(C Y Kim),정현채(H C Jung),윤용범(Y B Yoon),양석균(S K Yang),임용철(Y C Lim),윤병철(Byung Cheol Kim),노임환(I H Roe),유권(K Yoo) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.4
N/A A total of 486 cases of upper gastrointestinal bleeding admitted to Seoul National University Hospital via emergency room from Jan. 1986 to Jun. 1988 were clinically reviewed and the following results were obtained: 1) The male to female ratio was 4.7:1 and peak incidence was in the 6th and 5th decades. The sex and age had no prognostic value. 2) The causes of bleeding were esophageal varix (35.2%), gastric ulcer (17.7%), duodenal ulcer (13.4%), stomach cancer (6.6%), gastritis (5.15), Mallory-Weiss syndrome (2.7gp), miscellaneous causes (l.0%), and unknown causes (18.3%). Variceal bleeders had the highest mortality rate. 3) There was no past history of bleeding in 61.5% overall, and it had no prognostic value. But variceal bleeders had past history of bleeding in, 50.3% and the first episode of bleeding offered higher mortality rate. 4) Three types of bleeding hefore admission were hematemesis in 27.85, melena in 25.7% and both of them in 46.5%, which had no prognostic value if variceal and nonvariceal bleeders were considered respectively. 5) Systolic blood pressure and pulse rate had some prognostic value, that is, high pulse rate on admission carried higher morthalty rate in variceal bleeders and low systolic blood pressure did in nonvariceal bleeders. 6) The three patterns of bleeding after admission were single bleeding in 63.0%, repeated bleeding in 21.0% and continuous bleeding in 16.0%. The mortality rate of repeated and continuous bleeding was higher than that of single bleeding. 7) The patients who received transfusion were 86.8% and the amount of blood transfused was more than 10 pints in 24.1%. The mortality rate increased as the amount of blood transfused increased. 8) Esophageal varix ivas the cause of the first bleeding in 76.4% of patients with chronic liver disease with esophageal varix. If the cause of the first bleeding was the esophageal varix in patients with chronic liver disease with esophageal varix, the cause of the second bleeding was also esophageal varix in 93.5%.
Toxic and Non-Toxic Peritoneal Fluid:Effects on Sperm Motility
노성일,최규완,박종민,이승재,전종영,Roh, S.I.,Choi, K.W.,Park, J.M.,Lee, S.J.,Jun, J.Y. The Korean Society for Reproductive Medicine 1989 Clinical and Experimental Reproductive Medicine Vol.16 No.2
불염여성에서 복강내액의 독성 유무를 알기 위해서 콤퓨터 정액 분석기를 이용하여 복강내액의 정자 활동성을 분석하였다. 연구대상은 자궁내막증 환자 14예와 자궁내막증이 없는 불염환자로부터의 복강내액 9예로 하였다. 연구방법은 건강인의 정자를 셰척 분리하여 대상환자의 복강내액과 Hams F10 배양액을 동량 흔합하여 (50%) 배양후 정자 활동성을 측정하였다. 정자 활동성의 감소는 배양전 0시간의 수치와 비교해서 1시간, 4시간 그리고 24시간후의 결과를 비교 분석하였다. 자궁내막증 제 1기 및 제 2기 환자와 자궁내막증이 없는 환자의 복수에서의 정자 활동성의 감소는 통계학적으로 의의있는 차이는 없었다. 그러나 자궁내막증이 심한 제 3기의 환자군에서는 의의있는 차이가 있었다(p<.05). 실험군간의 정자 활동성의 평균치 차이는 없었으나,각 군에서의 환자별 개인 성적은 정자 활동성이 현저히 감소한 독성있는 복강내액과 비독성의 복강내액을 쉽게 구별할 수 있었다. 결론적으로 정자 배양을 이용한 복강내액 독성 검사는 비교적 간단하고 경제적이므로 염상적으로 최근에 대두된 복강내 수정 치료법의 예비검사로서 유용할 것으로 사료된다.
내시경검사로 (內視鏡檢査) 확진된 (確診) 십이지장궤양 (十二指腸潰瘍) 예들에서의 상부위장 (上部胃腸) X - 선검사소견의 분석 검토
송인성,최규완,장기현 ( In Sung Song,Kyoo Wan Choi,K H Chang ) 대한소화기학회 1981 대한소화기학회지 Vol.13 No.1
Radiologic findings were analyzed in 338 cases with endoscopically proven duodenal ulcer. The results were as follows; 1} Male to female ratio in duodenal ulcer disease was 4 5: I, and occurrence rate was highest among thirties and forties. 2) In 114 cases with duodenal ulcer in active or healing stage proved by endoscopy, cor- rect diagnosis was made in only 54.4% of cases by radiologic examination. In g cases with duodenal ulcer scar proved by endoscopy, 4 cases(44.4%) was diagnosed as ulcer in active or healing stage by radiologic examination. From these findings, it is suggested that the initial diagnosis and decision of healing in cases with duodenal ulcer disease would have to be made by endoscopic examination.
진행성 전신경화증 환자에서 식도관련증상과 식도 운동성과의 상호관계
송인성(I S Song),최규완(K W Choi),김정룡(C Y Kim),정영화(Y H Chung),이풍렬(P L Rhee),정현채(H C Jung),송영욱(Y W Song),이효석(H S Lee),윤용범(Y B Yoon) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
N/A To investigate the correlation of esophageal symptoms w ith esophageal manometric parameters in patients with progressive systemic sclerosis (PSS) we tested esophageal motility in 10 patients with PSS who were admitted to Seoul National University Hospital from Feb. 1988 to Aug. 1988 and in 5 normal subjects, and we analyzed every parameters. The results were as follows: 1) 4 patients with esophageal symptoms showed marked decrease of lower esophageal sphincter pressure (LESP) (9.I+4.4 mmHg vs 27.9+8.5 mmHg; p< 0.005) while 6 patients having no esophageal symptoms showed normal LESP (29.4+4.0 mmHg vs 27.9+8.5 mmHg). 2) Normally propagating peristaltic waves were not found in the lower esophageal bodies of 4 patients who had esophagea] symptoms. On the other hand, among 6 patients without symptoms, 3 patients showed no propagating peristaltic waves while the other 3 patients showed normally propagating peristaltic waves in the lower esophagus. 3) The amplitudes of contraction waves at upper esophageal body of patients with esophageal symptoms were decreased compared with those of patients who had no esophageal symptom. (29.0+6.1 mmHg vs 21.0+4.4 mmHg; p<0.05) 4) In cases not showing normally propagating peristaltic waves, nonpropagating, hroad-based, low-amplitude contractions were found at the lower esophageal body. In conclusion, LESP is the esophageal manornetric parameter vhich seemed to be the most closely correlated with esophagea) symptoms in patients with PSS. And PSS seems to influence the upper esophageal contraction. Our data also indicates that esophageal manometry may be useful in the early detection of esophageal involvement in patients with PSS.