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간세포암종의 간절제술 후 장기 예후인자 - 단변량 및 다변량 분석
박철근(Cheol Keun Park),장우영(Woo Young Jang),이종임(Jong Im Lee),최문석(Moon Seok Choi),조재원(Jae Won Cho),김선우(Seon Woo Kim),송상용(Sang Yong Song) 대한소화기학회 2002 대한소화기학회지 Vol.39 No.1
Background/Aims: We assessed prognostic factors affecting cumulative survival rate and recurrence-free survival rate after hepatic resection of hepatocellular carcinoma (HCC). Methods: Univariate and multivariate analyses were performed in 108 consecutive patients with HCC who underwent curative hepatic resection between November 1994 and March 1998. Results: The cumulative survival rates were 89.8%, 75.5%, and 56.6% at 1, 3, 5 years, respectively. The cumulative recurrence-free survival rates were 78.9%, 62.1%, and 53.0% at 1, 3, 5 years, respectively. The patients who had preoperative serum α-FP ≤ 20ng/mL showed high cumulative recurrence-free survival rates in univariate (p=0.020) and multivariate (p=0.061) analysis. Single tumor was associated with increased cumulative survival rates (p=0.034) and cumulative recurrence-free survival rates (p=0.029) in multivariate analysis. The presence of tumor capsule was associated with increased cumulative recurrence-free survival rates in univariate (p=0.031) and multivariate (p=0.030) analysis. Conclusions: By these results, resection alone is unlikely to cure HCC patients with multiple tumors or no tumor capsule. Preoperative serum α-FP level may be of prognostic significance in patients with HCC. (Korean J Gastroenterol 2002;39:33-39)
김경미 ( Kyoung Mee Kim ),박철근 ( Cheol Keun Park ) 대한소화기학회 2010 대한소화기학회지 Vol.56 No.4
It is widely accepted that endoscopic submucosal dissection (ESD) is an important treatment option for cases of early gastric carcinoma where the probability of lymph node metastasis is very low. The resected ESD specimens are carefully examined by serial sections at 2 mm intervals, and if pathology reveals submucosal invasion more than 500μm and/or lymphovascular invasion, or if the resection margin is involved by the tumor, surgery is recommended. In this point of view, thorough pathologic examination and reporting the accurate pathologic diagnosis of ESD specimen is very important. The diagnostic approach and pitfalls in the diagnosis of ESD specimen are reviewed. (Korean J Gastroenterol 2010;56:214-219)
광용혈성 검사와 Candida Albicans 검사를 이용한 이뇨제의 광독성 평가
이호성(Ho Seong Lee),김태흥(Tae Heung Kim),박기범(Ki Beom Park),박철근(Cheol Keun Park) 대한피부과학회 1994 대한피부과학회지 Vol.32 No.4
Background : Diuretic agents are widely used in the treatment of variable diseases. Although some diuretics may cause photosensitive reactions, this has been a relatively neglwted area of investigation. Objective : The study was undertaken to examine whether or not the diuretic agents could cause phototoxicity with the photohemolysis test and with the Candida albica as test. Method : Photohemolysis test: Fresh human red blood cells (RHC) were washed and diluted to 200 fold of original volume with TCM buffer. Test compound suspension, were added to the diluted blood at the final concentration of 10 M. Each sample was irradiated with 50 J/cm of UVA, and control samples were incubated in water bath with light shielding. After additional incubation in a dark water bath for 30 minutes the sarnples were centrifuged. After adding Drabkins reagent, measurement of absorbance of the supernatents by speetrophotometer at 420, 540, 550nm were performed. The degree of photohemolysis was determined by comparing the results wiith the control solution. Candide elbicens test wenty microliter of each solution of arious diuretics were applied to Sabourauds dextrose agar plate in which Candida albicanp had been diffusely applied previously. Four hours after the application, 80 J/cm of UVA was irradiated. The irraicated plates and nonirradiated controls were incubated in a darlI room for 48 hours, and were examined clearzones arround the drugs as the mean of positive results fcir the phototoxic potential of the drugs. Results : The photohemolyeii; vaIues of azosemide, spironolaetonet, iamterene, and xipamide at 420, 540, and 550nm were 70.57%/28.36%/31.61%/83.65%/16.40%/15.21%/75.66%/25.40%/28.17%, and 14.02%/9.11%/8.99% respectively, which exceeds the mear,injful positive value of above 5 , With the Candida olbicans test all teat solution at concentration of 1% and 5% showed negstive results. Conclusion : A phototoxic reaction may be triggered by azosemide, spironolactone, triamterene, and xipamide, and the possible mechanism concerned may be directed to cellular membranes. However with the negative result of knowed photosensitizers like hydrochlorthiazid and furosemide, there may be other possibilities for the explenation of phototoxicity. Thus further stirdies may be necessary to investigate more details about the cliscrepancies in greates detail. (Kor J Dermatol 1994; 32(4): 640-648)