1.Surgical excision of intracardiac myxoma: a 15-year experience.
Hyun SONG ; Wan Ki BAEK ; Hyuk AHN ; Hurn CHAE ; Chong Whan KIM
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(2):176-182
No abstract available.
Myxoma*
2.A Case of Aneurysmal Bone Cyst on the Thoracic Spine: A Case Report.
Chang Ki HONG ; Dong Keun HYUN ; Chong Oon PARK ; Young Soo HA
Journal of Korean Neurosurgical Society 2000;29(5):675-679
No abstract available.
Aneurysm*
;
Bone Cysts*
;
Spine*
3.A Case of Hemolytic Disease of the Newborn in Identical Twin due to Anti-c antibody.
Chang Hyun YOO ; Hyun Sang CHO ; Ki Sik MIN ; Jong Wan KIM ; Chong Young PARK ; Ki Yang RYOO
Korean Journal of Pediatric Hematology-Oncology 1999;6(1):131-135
Anti-c is an important Rh antibody that causes hemolytic disease of the newborn. Recently we had a case of hemolytic disease of the newborn in identical twin due to anti-c. The five-day-old female twin were admitted at our hospital due to jaundice. There were no ABO and Rh (D) incompatibilities between mother and babies. The newborn's direct and indirect antiglobulin tests were positive and the maternal serum showed a positive antibody screening test. The laboratory findings warranted hemolytic disease of newborn due to other Rh antibodies. The specificity of unexpected antibodies were anti-c in maternal serum and fetal serums. The babies were treated with only phototherapy for 10 days and discharged in recovery.
Antibodies
;
Coombs Test
;
Erythroblastosis, Fetal
;
Female
;
Humans
;
Infant, Newborn*
;
Jaundice
;
Mass Screening
;
Mothers
;
Phototherapy
;
Sensitivity and Specificity
;
Twins, Monozygotic*
4.Effects of General Anesthesia in Patients with Abnormal Liver Function .
Pan Sul LEE ; Ki Nam LEE ; Jun Il MOON ; Chong Hyun LEE
Korean Journal of Anesthesiology 1988;21(4):539-546
Recently, halothane has been commonly used as an inhalation anesthetic agent, but it is generally accepted that it can cause postoperative hepatic dysfunction. Therefore, other anesthetic agents which have relatively less hepatotoxic effects have been recommended. This study was undertaken to evaluate the postoperative hepatic changes in patients with abnormal liver function or hepatobiliary diseases. Patients were divided into three subgroups hepatobiliary, other hepatobiliary and jaundice, or HBsAG(+) for the two anesthetic agents, enflurane and Thalamonal. Liver function tests were performed before surgery, and on the 3rd, 5th and 9th postoperative days. The results were as follows: 1) SGOT and SGPT showed a more statistically significant decrease in Thalamonal anesthesia than in enflurane anesthesia in hepatobiliary and jaundice or HBsAg(+) groups. However, in the other hepatobiliary groups, there were no significant differences between the anesthetics. 2) Total protein, albumin, total bilirubin, direct bilirubin and alkaline phosphatase levels were not shown to be significantly different between the use of the two anesthetics in all groups. It is suggested that postoperative hepatic changes may have improved more significantly in Thalamonal anesthesia than in enflurane anesthesia in hepatobiliary patients with abnormal liver function and jaundice or HBsAg(+) patients.
Alanine Transaminase
;
Alkaline Phosphatase
;
Anesthesia
;
Anesthesia, General*
;
Anesthetics
;
Aspartate Aminotransferases
;
Bilirubin
;
Enflurane
;
Halothane
;
Humans
;
Inhalation
;
Jaundice
;
Liver Function Tests
;
Liver*
5.Evaluation of Methylprednisolone Dosing Regimen in Experimental Diffuse Brain Injury.
Ki Chan KIM ; Chong Oon PARK ; Dong Keun HYUN ; Young Soo HA
Journal of Korean Neurosurgical Society 1998;27(6):715-720
The present study was undertaken to examine the ability of a single large intraperitoneal dose of methylprednisolone(15, 30, 40, 60mg/kg) to modify the evolution of diffuse brain injury(DBI) in rats undergoing a contusion injury of 400gm-1m. Twenty five Sprague-Dawley rats were divided to five groups. Group 1 was not treated after cranial impact as control. Rats in group 2, 3, 4, 5 were treated with 15-mg/kg, 30-mg/kg, 40-mg/kg, 60-mg/kg methylprednisolone dose at 1 hour after injury, respectively. After 24 hours, these rats were sacrificed, and the water content of the whole brain were measured. When the water content was assumed as the criterion of brain edema, there was significant difference between control group(71.03+/-.42%) and group 2(67.34+/-.07%), group 3(66.43+/-.36%), group 4(64.52+/-.11%)(p<0.01). On the other hand, there was no significance between control group(71.03+/-.42%) and group 5(69.74+/-.53%) (p>0.01). This study shows that megadose of methylprednisolone in 15, 30, or 40mg/kg reduces the brain edema, and the its effect is biphasic in that the 60-mg/kg methylprednisolone dose is ineffective.
Animals
;
Brain
;
Brain Edema
;
Brain Injuries*
;
Contusions
;
Hand
;
Methylprednisolone*
;
Rats
;
Rats, Sprague-Dawley
6.Comparative study for Isolation of Yersinia pseudotuberculosis from Water.
Chong Rae CHO ; Tae Hyun UM ; In Ki PAIK
Korean Journal of Clinical Microbiology 2005;8(2):136-141
BACKGROUND: Yersinia pseudotuberculosis is recognized throughout the world as a cause of water-or food born infections in human and animals. Although many attempts have been made to define optimal conditions for the isolation of the organism from water, their isolation yields remain low; therefore, we tried to find an effective method for the recovery of Y. pseudotuberculosis from water. METHODS: Water samples were deliberately contaminated with Y. pseudotuberculosis at various levels and then processed by the following three isolation METHODS: centrifugation, direct filtration, and intracellular culture. For the centrifugation method, the water samples were centrifuged at 5000 rpm for 1 hr and the final precipitates were inoculated in cefsulodin-irgasan-novobiocin(CIN) media. For the filtration method, the water samples were filtered by negative pressure and the filter papers were put directly on CIN media. For the intracellular culture method, the organisms were extracted from the HeLa cells that had been infected with Y. pseudotuberculosis and inoculated on CIN media. We also examined the efficacy of the filtration method after cold enrichment with a mixture of Y. pseudotuberculosis, Escherichia coli, and Citrobacter freundii. RESULTS: With the concentration of 3x10(2)/100 mL, Y. pseudotuberculosis was isolated only by the filtration method; however, none of the culture methods were good enough to recover the organism from the water sample when the concentration was 3x10/100 mL. With cold enrichment, however, the recovery was much more efficient; the organism grew after direct inoculation or after filter inoculation when the starting concentrations were 3x10(2)/100 mL or 3x10/100 mL, respectively. CONCLUSION: A combined use of direct filtration and filter inoculation after cold enrichment is the most effective method to yield Y. pseudotuberculosis isolation. The introduction of effective methods for the isolation of Y. pseudotuberculosis from untreated drinking water would increase the awareness by the public of the health hazard of spring water.
Animals
;
Centrifugation
;
Citrobacter freundii
;
Drinking Water
;
Escherichia coli
;
Filtration
;
HeLa Cells
;
Humans
;
Water*
;
Yersinia pseudotuberculosis*
;
Yersinia*
7.In vitro Evaluation of Anti-Human Immunodeficiency Virus Activity of Nucleoside Derivatives and Studies on Their Mode of Action.
Chong Kyo LEE ; Dong Ki KIM ; Jee Hyun KIM ; Hae Soo KIM ; Mi Kyoung PI ; Jong Beak PARK ; Baek KIM
Journal of the Korean Society of Virology 1997;27(1):69-75
To evaluate in vitro anti-HIV efficacies of nucleoside derivatives, MT-4 cell line was infected with HIV-1 and HIV-2 respectively and treated with various compounds and the formerly approved drugs such as AZT, d4T, ddC and ddI. CPE method was used to evaluate their antiviral activity Most dideoxynucleosides, AZT, d4T, ddC and ddI, showed anti-HIV activities against both viruses but no other compounds including anti-herpesvirus drugs did any. Further experiments were carried out to study their inhibitory mechanism of viral adsorption. The results showed no inhibition of syncytium formation due to an interaction between the gp120 expressed in HIV-infected cell surface and CD4 receptor on the uninfected cell surface in the presence of AZT. AZT showed no activity up to 100 microgram/ml. Inhibition of reverse transcriptase (RT) in the presence of AZT-triphosphate was tested by using RT expressed in E. coli and purified and its IC50 was 4.5 nM.
Adsorption
;
Cell Line
;
Dideoxynucleosides
;
Giant Cells
;
HIV-1
;
HIV-2
;
Inhibitory Concentration 50
;
RNA-Directed DNA Polymerase
;
Stavudine
8.Clinical observation of acute drug intoxications.
Jun Ha CHUN ; Kyung Chul SHIN ; Jin Hong CHUNG ; Chong Ki LEE ; Bong Sup SHIM ; Hyun Woo LEE
Yeungnam University Journal of Medicine 1991;8(2):164-173
Clinical observations were made on 349 cases of acute drug intoxication who were visited to emergency room of Yeungnam University Hospital during recent 7 years from January 1984 to December 1990. The following results were obtained. 1) Total number of cases of acute drug intoxication was 349 which was 0.39% of the total patients of the emergency room during the same period. 2) The ratio of male to female was 1.1:1. The age incidence was highest in the third decade (26.7%). The monthly incidence was highest in May. Higher frequency was observed in summer season. 3) The most common drug of the intoxication was pesticides and herbicides (71.9%), the remainders were miscellaneous drugs (11.2%), sedatives (7.7%), rodenticides (6.3%) and unknown drug (3.2%) in orders. 4) The most common cause of drug intoxication was suicide (69.1%) and the others were accident, unknown cause, intention in orders. 5) Main clinical manifestations were the impairment of consciousness, nausea, vomiting and convulsion. Physical examination revealed increased pulses, increased blood pressure, miosis of the pupil and sweating. Above symptoms and signs were more prominent in pesticide intoxication. Leukocytosis, glycosuria and abnormal LFT were common findings in acute intoxications. 6) The complications were developed in 18.3% among 349 cases and the most common complication was respiratory failure, pneumonia, cardiovascular collapse and pulmonary edema in orders. 7) Overall mortality rate was 8.3% of total cases and mortality rate was highest in herbicide intoxication (22.2%).
Blood Pressure
;
Consciousness
;
Emergency Service, Hospital
;
Female
;
Glycosuria
;
Herbicides
;
Humans
;
Hypnotics and Sedatives
;
Incidence
;
Intention
;
Leukocytosis
;
Male
;
Miosis
;
Mortality
;
Nausea
;
Pesticides
;
Physical Examination
;
Pneumonia
;
Pulmonary Edema
;
Pupil
;
Respiratory Insufficiency
;
Rodenticides
;
Seasons
;
Seizures
;
Suicide
;
Sweat
;
Sweating
;
Vomiting
9.Severe Bradycardia and Hypotension after Halothane Induction in a Patient Receiveng Beta - adrenergic Blocker .
Jun Hak LEE ; Ki Nam LEE ; Jun Il MOON ; Chong Hyun LEE
Korean Journal of Anesthesiology 1989;22(5):777-782
Patients with severe hypertension present the anesthesiologist with considerable difficulty. Without adequate treatment, serious problems may develop including myocardial ischemia or infarction, cerebral thrombosis or hemorrhage and renal damage during perioperative periods. However, drug interactions between antihypertensives and anesthetics may also be severe enough to produce synergistic bradycardia and hypotension. We have experienced managing a case with severe bradycardia and hypotension following halothane induction in a patient receiving beta-adrenergic blocker. This case illustrates the drug interaction between beta-adrenergic blocker and halothane.
Adrenergic Antagonists*
;
Anesthetics
;
Antihypertensive Agents
;
Bradycardia*
;
Cerebral Infarction
;
Drug Interactions
;
Halothane*
;
Hemorrhage
;
Humans
;
Hypertension
;
Hypotension*
;
Myocardial Ischemia
;
Perioperative Period
;
Thrombosis
10.The Effects of Dantrolene Sodium in Prevention of Malignant Hyperthermia .
Seung Soo YEOM ; Ki Nam LEE ; Chong Hyun LEE ; Jun Il MOON
Korean Journal of Anesthesiology 1987;20(4):516-520
Malignant hyperthermia is defined as a potentially fatal hypermetabolic syndrome char-acteriged by hyperpyrexia, muscle rigidity, tachycardia, respiratory and metabolic acidosis. cyanosis etc. It ia susceptible in patients with musculoskeletal diaease such as strabismus, kyphosco-liosia, hernia, cleft palate, cryptorchidism, but there is no single diagnostic method to detect a susceptible patient. Fortunately s-CPK is elevated in 70% of carriers, so we checked a-CPK and a-LDH bel- ore operation in patients scheduled for correction of congenital strabismus and classified into group 1 (norirlal a-CPK group) and group 2 (elevated s-CPK group) . We administered Oantrolene sodium to group 2 before operation and compared the changes of s-CPK and s-LDH after operation. The results are as fallows, 1) s-CPK was lowered after administration of Dantrolene sodium in group 2 . (from 76.4 IU/L to 48.5IU/L) 2) s-CPK elevation after operation was much less in group 2 than group 1. (56.1+/-58.7 IU/L vs 164.7+/-127.1 IU/L) In conclusion, it would seem that Dantrelene aodium was affective in prevention of mali-gnant hyperthermia.
Acidosis
;
Cleft Palate
;
Cryptorchidism
;
Cyanosis
;
Dantrolene*
;
Fever
;
Hernia
;
Humans
;
Male
;
Malignant Hyperthermia*
;
Muscle Rigidity
;
Sodium
;
Strabismus
;
Tachycardia