1.Comparison of C3 and C4 in Umbilical Blood and with those in Maternal Sera.
Bong Joon CHUNG ; Jong Woo SHIN
Journal of the Korean Pediatric Society 1987;30(3):253-258
No abstract available.
2.Problems in issuing medical certificate in orthopedic field.
Bu Hwan KIM ; Kyoo Seag SHIN ; Jong In IM ; Hee Chung CHUNG
The Journal of the Korean Orthopaedic Association 1993;28(7):2467-2471
No abstract available.
Orthopedics*
3.Comparison of choledochal cyst between child and adult type.
Jung Yong KIM ; Sang Young CHUNG ; Hyun Jong KIM ; Shin Kon KIM
Journal of the Korean Surgical Society 1993;45(5):679-687
No abstract available.
Adult*
;
Child*
;
Choledochal Cyst*
;
Humans
4.Doppler evaluation of blood flow velocity waveforms of umbilical artery and descending aorta in normal and pregnancy-induced hypertension.
Hong Seop LEE ; Kyu Sik SHIN ; Jong Gi CHUNG ; Ran Ok LEE ; Chul KIM
Korean Journal of Obstetrics and Gynecology 1993;36(7):2483-2488
No abstract available.
Aorta, Thoracic*
;
Blood Flow Velocity*
;
Female
;
Hypertension, Pregnancy-Induced*
;
Pregnancy
;
Umbilical Arteries*
5.Trends of Anesthetic Management in 22 Years.
Sun Hee CHUNG ; Jong Nam SHIN ; Hae Kyung KIM
Korean Journal of Anesthesiology 1984;17(1):59-65
To evaluate the historical trend of anesthetic experience for the past 22 years a total of 68,473 cases which were performed at the National Medical Center from 1959 to 1981 were studied. To simplify the analysis statistically, the author selected the anesthetic cases every other year(12 years). 1) General anesthesia was performed in more than 78% of the total cases and of this number endotracheal intubation has been used with increasing frequency(average 92.8%). 2) For intravenous induction, thiopental sodium was used as the main agent, in more than 90% since 1980. 3) Trichlorethylene, cyclopropane and ethylchloride which had been used since 1961, were abandoned from 1978 except for training purposes. Methoxyflurane was used from 1973 to 1979, but given up there after because of it's nephrotoxicity. The use of halothane has steadily increased(86% of the total inhalation anesthetics) and ethrane has also been used with increasing frequency since 1980. 4) Pancuronium has been used as a primary muscle relaxant instead of gallamine and D-tubocurarine which had been used as the main durgs from 1959 till 1979. 5) Innovar and morphine as intravenous anesthetics, have recently been with increasing grequency.
Anesthesia, General
;
Anesthetics, Intravenous
;
Enflurane
;
Gallamine Triethiodide
;
Halothane
;
Inhalation
;
Intubation, Intratracheal
;
Methoxyflurane
;
Morphine
;
Pancuronium
;
Thiopental
;
Tubocurarine
6.Study on Anti-neutrophil Cytoplasmic Antibodies in Children with Henoch-Schonlein Purpura.
Shin Jong LEE ; Woo Yeong CHUNG ; Chul Ho KIM ; Heong Nyeo LEE
Journal of the Korean Pediatric Society 1995;38(7):970-975
No abstract available.
Antibodies, Antineutrophil Cytoplasmic*
;
Child*
;
Humans
;
Purpura, Schoenlein-Henoch*
7.Renal Streaky Artifact during Contrast-Enhanced Abdominal and Pelvic CT' Comparison of High versus Low Osmolality Contrast Media.
Jong Chul KIM ; Dae Hong KIM ; Chung Keun LEE ; Kyoung Suk SHIN
Journal of the Korean Radiological Society 1994;30(6):1129-1133
PURPOSE: Introduction of low osmolality contrast agent(LOCA) has allowed safer, more comfortable contrast-enhanced CT examination, but there has been significant increase in image degradation when evaluating the kidneys due to streaky artifact. The authors reviewed findings of contrast-enhanced abdominal and pelvic computed tomography(CT) to know the difference of renal streaky artifact between a high osmolality contrast agent (HOCA) and LOCA. MATERIALS AND METHODS: This study included two hundred contrast-enhanced CT in 200 patients, 100 performed with HOCA(meglumine ioglicate, 150ml) and 100 performed with LOCA (iopromide, 150ml). The severity of renal streaky artifact was compared between HOCA and LOCA groups. RESULTS: Of the scans performed with HOCA, 40 had no artifact, 52 had grade I artifact, 6 had grade II artifact, and 2 had grade III artifact Of the scans performed with LOCA, 23 had no artifact, 44 had grade I artifact, 29 had grade II artifact, and 4 had grade III artifact. There was significant difference in the degree of the streaky artifact depending upon the osmolality of the contrast media used(by {{{{x^2}}}}-test, P=.0001). CONCLUSION: The results of this study revealed a statistically significant increased incidence of artifacts and distortions of renal image with LOCA when compared with HOCA.
Artifacts*
;
Contrast Media*
;
Humans
;
Incidence
;
Kidney
;
Osmolar Concentration*
;
Tomography, X-Ray Computed
8.Nitroblue Tetrazolium Reduction by Pseudoeosinophils from Rabbits Treated with Bacterial or Viral Vaccine.
Sang Ghern CHUNG ; Jong Wo SHIN
Journal of the Korean Pediatric Society 1979;22(8):671-680
This study was undertaken to acquire some information concerning the mechanism for reduction of nitroblue tetrazolium (NBT) dye by neutrophils. Male rabbits weighing more than 2 kilograms were used in this study. The vaccines. The vaccines utilized were bacterial and viral ones such as typhoid, cholera, measles, and mumps vaccines. The histochemical NBT test was carried out using the method by Park et al. With some modification. Vaccines were given the rabbits, and changes were observed in the percentage and number of pseudoeosinophils and NBT-positive pseudoeosils in the peripheral blood. The data obtained thus were discussed and summarized as follow:1. The percentage of the NBT-positive pseudoeosinophils increased in the rabbits to which the bacterial vaccines were given. 2. The percentage of NBT-positive pseudoeosinophils decreased in the rabbits to whick viral vaccines were given. 3. No association was found between the percentage of the NBT-positive pseudoeosinophils and the number of pseudodosinophils following the administeration.
Bacterial Vaccines
;
Cholera
;
Humans
;
Male
;
Measles
;
Mumps
;
Neutrophils
;
Nitroblue Tetrazolium*
;
Rabbits*
;
Typhoid Fever
;
Vaccines
;
Viral Vaccines
9.Risk Assessment on Carcinogenic Pesticides of Vegetables in Korea.
Jae Hong YOON ; Jong Tae LEE ; Yong CHUNG ; Dongchun SHIN
Korean Journal of Preventive Medicine 1999;32(2):155-161
OBJECTIVES: The study was conducted to estimate the carcinogenic risks from the ingestion of some carcinogenic pesticides (CPs) in vegetables sampled at a local agricultural product market in Seoul. METHODS: After applying a hazard identification step, we selected four pesticides, such as DDT, dieldrin, folpet, and heptachlor epoxide, for this risk assessment. Concentrations of each pesticide were measured from randomly sampled vegetables. In order to estimate the human exposure levels, we combined the concentration of pesticides in the vegetables with consumption rate of those vegetables. Three scenarios were hypothesized for human exposure assessment. Scenario I was the most conservative which supposed the undetected CPs would be the detection limit values. Scenario II was assumed that the undetected CPs would be a half of the detection limit values, and finally scenario III merely considered only values greater than the detection limit values. We finally presented the estimated carcinogenic risks on the basis of the traditional risk assessment procedure suggested by U.S. EPA. RESULTS: Pesticides including DDT, dieldrin, folpet and heptachlor epoxide were detected in 9 samples (6%) in the range of 0.0006~0.09ppm. The daily intake levels of carcinogenic pesticides were estimated in the range of 0.0009~0.0079 microgram/day. As we expected, excess cancer risks based on scenario I was also the highest (1.1x10-8~ 5.5x10-5). CONCLUSIONS: We found that the estimated risks from the pesticides we investigated were not serious. We, however, propose that a continuos monitoring is needed to make sure for the protection of public health.
DDT
;
Dieldrin
;
Eating
;
Heptachlor Epoxide
;
Humans
;
Korea*
;
Limit of Detection
;
Pesticides*
;
Public Health
;
Risk Assessment*
;
Seoul
;
Vegetables*
10.Evaluation of Reliability of Traditional and Computerized Neurobehavioral Tests.
Joon SAKONG ; Jong Hak CHUNG ; Man Joong JEON ; Mal Suk SHIN
Korean Journal of Occupational and Environmental Medicine 2000;12(4):494-500
OBJECTIVES: Thls study was conducted to select more reliable neurobehavioral tests that are compatible with the characteristlcs of Korean workers and their health management system. METHODS: To compare the reliability of neurobehavioral tests, test and retest of five computerized and five traditional neurobehavioral tests administered to 85 medical school students and 35 hospital workers. The computerized tests include Simple reaction time, Addition, Symbol digit, Digit span, and Finger tapping speed, while the traditional tests include the trenton visual retention test, Digit symbol, Digit span, Pursuit aiming, and Pegboard. RESULTS: Computerized Addition was found to have the highest test-retest reliability (0.90) of and followed by Finger tapping speed (nondominant hand, 0.89, dominant hand, 0.85), Symbol digit(0.82), and Digit span(0.74). Only two traditional tests, Digit symbol(0.86), and Pursuit aiming(0.72), showed test-retest reliability coefficient greater than 0.70. CONCLUSIONS: These results suggest that the computerized Additions, Symbol digit, Fingel tapping speed, and traditional Digit symbol are more satisfactory for our purposes. These results may allow a reasonable selection of the most appropriate tests for periodical evaluation of central nervous system of workers exposed to neurotoxic substances in Korea.
Central Nervous System
;
Fingers
;
Hand
;
Humans
;
Korea
;
Reaction Time
;
Schools, Medical