1.A Study of Phototoxicity Using the Candida Albicans Test and the Photohemolysis Test.
Seung Hyun HONG ; Hyun Chul CHOI ; Kee Chan MOON
Korean Journal of Dermatology 1995;33(2):268-274
Background: If phototoxic:ity can be predetermined in vitro, the information will aid in prognosticating whether or not caimpounds have a photosensitizing pczrlial. OBJECTIVE: For the evaluation of the phototoxic potentials of reral drugs, we performed the Candida albicans test and the photohemolysis test. METHODS: The Candida altiicans test is based on growth inhibtion of Candida albicans after application of the drug and ultraviolet light A( UVA ) irradiatior and the photohemolysis test is based on hemolysis of red blood cells caused by irradiation ir the presence of photosensitizing compounds. In the Candida albicans test, clear zones around the drug patches were evaluated, which means positive results for the phototoxic potential of the drugs. In the photohemolysis test, the amounts of hemolysis were evaluated by measuring the relar absorbance at 540nm using a spectrophotometer. RESULTS: In the Candida albicans test, ibuprofen, naldix acid, chlorpromazine and thiodiphenylamine showed positive results, whereas others did not the photohemolysis test, griseofulvin, ibuprofen and nalicdixic acid showed increased amounts hemolysis at UVA and ultraviolet light B(UVB) irracliation, and chlorpromazine, thiodiphenylaiair, chlorothiazide and piroxicam showed increased amounts of hemolysis at UVA irradiation only. CONCLUSION: The results showed that both methods were goodness screening tests for demonstrating the phototoxicity of therapeutic drugs.
Candida albicans*
;
Candida*
;
Chlorothiazide
;
Chlorpromazine
;
Dermatitis, Phototoxic*
;
Erythrocytes
;
Griseofulvin
;
Hemolysis
;
Ibuprofen
;
Mass Screening
;
Piroxicam
;
Ultraviolet Rays
2.A case of peritonitis following colonoscopy in patient on continuous ambulatory peritoneal dialysis.
Hee Seung HONG ; Seung Joon SHIN ; Byung Geun HAN ; Seung Ryul KIM ; Seung Ok CHOI ; Kwang Hoon LEE ; Hyang In KIM
Korean Journal of Nephrology 1993;12(4):711-714
No abstract available.
Colonoscopy*
;
Humans
;
Peritoneal Dialysis, Continuous Ambulatory*
;
Peritonitis*
3.The transfer system of trauma patient to emergency center.
Ok Jun KIM ; Ok Kyung CHOI ; Hong Du GOO ; Seung Whan KIM ; Seung Ho KIM
Journal of the Korean Society of Emergency Medicine 1993;4(1):112-121
No abstract available.
Emergencies*
;
Humans
4.A Case of Acute Mixed Lineage Leukemia (ANLL with TII) with neutropenic Enterocolitis.
Hyeon Joo CHOI ; Young Suk KOH ; Young Mee HONG ; Seung Joo LEE ; Kee Suk HONG ; Keum Ja CHOI
Journal of the Korean Pediatric Society 1990;33(9):1281-1287
No abstract available.
Enterocolitis, Neutropenic*
;
Leukemia*
5.The Potential Acuity Meter to Predict Postoperative Visual Acuity after Cataract Surgery.
Seung Tak OH ; Kang Ho CHOI ; Seung Jung LIM ; Hong Bok KIM
Journal of the Korean Ophthalmological Society 1996;37(4):591-595
The potential acuity meter(PAM) has been reported to be a useful instrument for predicting postoperative visual acuity after cataract extraction surgery. Forty nine eyes were tested with PAM before surgery, and the best postopertive visual acuity was obtained. The PAM accurately predicted the postoperative visual acuity to within three lines in 90.0% of the cases. When the test is in error, the tendency is for the PAM to underestimate the final acuity rather than to overestimate. Especially under undilated pupil, in dense cataracts (<20/200),and,in posterior subcapsular and cortical cataracts, the PAM tends to underestimate further.
Cataract Extraction
;
Cataract*
;
Pupil
;
Visual Acuity*
6.Successful pregnancy in a patient undergoing continuous ambulatory peritoneal dialysis.
Seung Ok CHOI ; Sung Rul KIM ; Kyong Gu YOH ; Hee Seung HONG ; Young Jun WON ; Kwang Hoon LEE ; In Bae CHEONG
Korean Journal of Medicine 1993;45(5):681-685
No abstract available.
Humans
;
Peritoneal Dialysis, Continuous Ambulatory*
;
Pregnancy*
7.Efficacy of Stented Pancreaticojejunostomy and Jejunojejunostomy after Pancreaticoduodenectomy.
Chul CHOI ; Jae Hong KIM ; Seung Bae LEE ; Ju Sub PARK
Journal of the Korean Surgical Society 2000;58(5):708-715
PURPOSE: A pancreaticoduodenectomy is the procedure of choice for patients with resectable carci nomas of the pancreatic head, duodenum, or periampullary region. Although the morbity and the mortality are decreasing now, but there are still high. Leakage of the pancreatic duct remains the major source of death and complications after a pancreaticoduodenectomy. Thus, the authors used a stented pancrea ticojejunostomy and jejunojejunostomy after a pancreaticoduodenectomy to decrease leakage of the pancreatic duct. METHODS: The authors studied retrospectively 44 consecutive patients who had a pancrea ticoduodenectomy with a stented pancreaticojejunostomy and jejunojejunostomy at Kwangju Christian Hospital between 1993 and 1998. RESULTS: Leakage of the pancreaticojejunostomy was diagnosed in one of the 44 patients (2.5%). There were two deaths after the pancreaticoduodenectomy, one from compli cation of leakage of the pancreaticojejunostomy and the other from UGI bleeding. CONCLUSION: The stented pancreaticojejunostomy and jejunojejunostomy is an effective and safe method for use with a pancreaticoduodenectomy. However, the leakage that might occur despite the stented pancreaticojeju nostomy and jejunojejunostomy can be managed less invasively.
Duodenum
;
Gwangju
;
Head
;
Hemorrhage
;
Humans
;
Mortality
;
Noma
;
Pancreatic Ducts
;
Pancreaticoduodenectomy*
;
Pancreaticojejunostomy*
;
Retrospective Studies
;
Stents*
8.The Novel Low Frequency Oscillation in Pulmonary Artery Pressure.
Mung Kul YUM ; Dong Ju CHOI ; Moon Hong DOH ; Young Geun JUNG ; Seung Hwan KIM
Korean Circulation Journal 1993;23(5):714-722
BACKGROUND: It is well known that systemic blood pressure oscillates with low(0.04~0.1Hz), mid(0.1~0.15Hz), and high(respiratory) frequency range. But there has been no study about oscillation of pulmonary artery pressure(PAP). METHOD: We measured PAP for 5 minutes in 32 patients of ventricular septal defect and stored them to computer files. Power spectral density curve was obtained. Low, mid, respiratory frequency power were measured by integrating the area within each frequency range below the power density curve. RESULT: The incidence of significant low frequency power(more than 5% of total power) were higher in patients of high PAP and hign Rp/Rs than those of low PAP and Rp/Rs(p<0.01 and p<0.005 respectively). The low frequency power positively correlates with PAP and Rp/Rs(r=0.62, p<0.0005 and r=0.61, p=0.0005 respectively). CONCLUSION: It can be said conclusively that as PAP and pulmonary vascular resistance elevates, the PAP tends to definitively oscillate in low frequency range.
Blood Pressure
;
Heart Septal Defects, Ventricular
;
Humans
;
Incidence
;
Pulmonary Artery*
;
Vascular Resistance
9.Computerized Quantitative Analysis of Fetal Heart Rate after Acoustic Stimulation in Preterm Pregnancies.
Moon Il PARK ; Sung Ro CHUNG ; Seung Kwon KOH ; Sung Ho HAH ; Gyu Hong CHOI
Korean Journal of Perinatology 1998;9(3):263-269
Acoustic stimulation test(AST), is currently being used as an alternative tool of nonstress test (NST). However, there are no standard guideline for analysis of AST. Computerized numerical analysis of AST would be helpful for development of diagnostic criteria of AST. Fifty-one normal pre-term pregnancies entered to this study after conventional 20-minutes NST and 10-minutes AST. Acoustic stimulations were performed using Fetal Acoustic Stimulator (Model 146, Corometrics, US). We analyzed the FHR response after acoustic stimulation using our on-line computerized FHR analysis system, HYFM-I & II software. The changes of loss of signal, baseline FHR, variability, number of fetal movements, and number of FHR accelerations were analyzed numerically. The loss of signal was increased about 2 fold(122.61%). The baseline FHR was increased from 144.57bpm to 156.81bpm(8.5%) after acoustic stimulation. Number of fetal movements was increased about 2 fold(from 2.1 to 4.12/10 minutes). FHR variability was also increased from 17.81 bpm to 26.37 bpm. After AST, number of FHR accelaration was increased 55.47%(10sec 10bpm) and 68.42%(15sec 15bpm), respectively. In this study, we acrumulated elemental FHR data using computerized system after AST. These data would be helpful in the accurate analysis of AST and also enable us to develop the objective interpretation system for AST.
Acceleration
;
Acoustic Stimulation*
;
Acoustics*
;
Female
;
Fetal Heart*
;
Fetal Movement
;
Heart Rate, Fetal*
;
Pregnancy
;
Pregnancy*
10.Two Cases of Endometriosis in the Episiotomy Scar Following Vaginal Delivery.
Mee Jeong YOO ; Seung Ho HAH ; Yoon Jin JEONG ; Kyu Hong CHOI
Korean Journal of Obstetrics and Gynecology 1997;40(10):2340-2343
Endometriosis in the episiotomy scar following vaginal delivery is one of the very rare condition among the extrapelvic endometriosis. We have experienced two cases of endometriosis in the episiotomy scar following vaginal delivery. We report two cases with a brief review of the concerned literatures.
Cicatrix*
;
Endometriosis*
;
Episiotomy*
;
Female