1.Choic of surgical treatment for intrahepatic stones.
Young Hwan SEONG ; Young Kil CHOI ; Sang Hyo KIM
Journal of the Korean Surgical Society 1991;40(2):168-174
No abstract available.
2.The Comparative Study of Interstitial Laser Coagulation and Transurethral Resection for Begin Prostatic Hyperplasia.
Ja Hwan KOO ; Seong CHOI ; Hyun Yul RHEW
Korean Journal of Urology 2000;41(9):1125-1130
No abstract available.
Laser Coagulation*
;
Prostatic Hyperplasia*
3.Effects of Opioid Agonists on the Suppressed Spontaneous Alternation Behaviour in Rats.
Gi Chul LEE ; Seong Il JEON ; Jung Ho LEE ; Young Min CHOI ; Seong Ho KIM ; Jeong hwan RYU ; Mi CHOI ; Hwan Il CHANG
Journal of the Korean Society of Biological Psychiatry 1999;6(2):193-201
This study was designed to evaluated the effects of opioid receptor agonists on the spontaneous alternation behaviour in an animal model of obsessive-compulsive disorder in rats. According to the theory that dopamine is related to the biological etiology of obsessive-compulsive disorder, the effect of the nalbuphine(opioid kappa agonist) and the tramadol(opioid mu agonist), which act as manipulating agents on the inhibition or stimulation of dopamine release, in the spontaneous alternation behaviour were evaluated. 24 hours prior to the experiment, rats were food-deprived. These rats were put into the T-maze, in which white and black goal boxes were baited with small amounts of chocolate milk. Each rat was given 2 set of 7 trials during which it was placed in the start box and allowed to choose the one of the goal boxes for each time. After identifying the stable baseline of spontaneous alternation behaviour, nonselective 5-HT agonist 5-MeODMT(1.25mg/kg/IP) disrupted spontaneous alternation. Rats were stratified into fluoxetine(10mg/kg/IP), nalbuphine(10mg/kg/IP), tramadol(46.4mg/kg/IP), and saline(0.5cc/IP) injection group with experimental drug treatment for 21 days. The effects on the 5-M?DMT(1.25mg/kg/IP) induced disruption of spontaneous alternation behaviour were checked at the next day of discontinuation of drug treatment. The results were as follows : 1) At the day after 21 days of the drug treatment, the nalbuphine treated group and the fluoxetine treated group showed significant difference from the tramadol treated group and the saline treated group in the 5-MeODMT(1.25mg/kg/IP) induced suppression of spontaneous alternation behaviour. 2) Within each drug treatment group, the fluoxetine treated group showed significant difference between before and after the treatment of fluoxetine in the 5-MeODMT(1.25mg/kg/IP) induced suppression of spontaneous alternation behaviour. And also, the nalbuphine treated group showed significant difference between before and after the treatment of nalbuphine in the 5-MeODMT(1.25mg/kg/IP) induced suppression of spontaneous alternation behaviour. There was no difference between the baseline and after the treatment of nalbuphine in the 5-MeODMT(1.25mg/kg/IP) induced suppression of spontaneous alternation behaviour. We indentified that the opioid kappa agonist that act as dopamine release inhibitor affect the spontaneous alternation behaviour which is an animal model of obsessive-compulsive disorder in rat.
Animals
;
Cacao
;
Dopamine
;
Fluoxetine
;
Milk
;
Models, Animal
;
Nalbuphine
;
Obsessive-Compulsive Disorder
;
Rats*
;
Receptors, Opioid
;
Serotonin Receptor Agonists
;
Tramadol
5.Surgical Treatment of 20 Cases of Adrenal Tumors.
Heon Joong KANG ; Jeong Hwan AN ; Seong CHOI ; Hyun Ryul RHEW
Korean Journal of Urology 1994;35(6):671-677
Our experience of surgical management of 20 adrenal tumors was present during the period from June, 1988 to May, 1993. The results of clinical study were as follows ; 1. Average age of patients was 40.9 years with the highest incidence in sixth decade occupying 40% and male to female ratio was 1:1 and right to left ratio was equal also. 2. The adrenal tumors consist of 8 adrenocortical adenoma( including 3 primary aldosteronisms and 1 Cushing syndrome), 4 adrenocortical carcinoma(including 1 Cushing syndrome), 7 pheochromocytomas and l neuroblastoma. 3. The 11 functioning adrenal tumors( including 4 adrenocortical adenomas, 1 adrenocortica1 carcinoma and 6 pheochromocytomas) showed specific symptoms and signs and the majority symptom and sign of the 9 non-functioning adrenal tumors( including 4 adrenocortical adenomas, 3 adrenocortical carcinomas, 1 neuroblastoma and 1 pheochromocytoma) showed abdominal discomfort and pain. 4. For initial diagnosis of the adrenal tumors, USG, CT, MRI and angiography are reliable but IVP was reliable in large adrenal tumor 5. The surgical approaches were transperitoneal in 18 patients and retroperitoneal in 2 patients and postoperative surgical complication occurred in 3 patients of transperitoneal approaches that were prolonged ileus, spleen injury and pancreatic injury with pleural effusion.6. The tumor masses were 12gm to 4,000gm in weight (mean: 616gm). The adrenal benign and malignant tumor were significantly different in weight ( 120gm : 1817gm).
Adrenocortical Adenoma
;
Adrenocortical Carcinoma
;
Angiography
;
Diagnosis
;
Female
;
Humans
;
Ileus
;
Incidence
;
Magnetic Resonance Imaging
;
Male
;
Neuroblastoma
;
Pheochromocytoma
;
Spleen
6.Phylogenetic Analysis of Human Bocavirus in Hospitalized Children with Acute Respiratory Tract Infection in Korea.
Jong Gyun AHN ; Seong Yeol CHOI ; Dong Soo KIM ; Ki Hwan KIM
Korean Journal of Pediatric Infectious Diseases 2012;19(2):71-78
PURPOSE: Human bocavirus (hBoV), a recently discovered virus, has been detected in children with respiratory tract infections worldwide. The aim of this study was to analyze the frequency and molecular phylogeny of hBoV in the respiratory samples of children with acute respiratory tract infections in 2010. METHODS: Nasopharyngeal samples were collected from 953 children with lower respiratory tract infections at Severance children's hospital in Korea from January 2010 to December 2010. We applied the multiplex PCR technique for the identification of 12 respiratory viruses from the samples. Among the total specimens, hBoV positive samples were subjected to phylogenetic analysis by sequencing a fragment of the VP1/VP2 gene junction. RESULTS: hBoV was detected in 141 (14.8%) among 953 patients. The 61.7% of hBoV-positive samples were found to co-exist with other respiratory viruses. The results of phylogenetic analysis showed that all 141 hBoV-positive isolates were identified as hBoV 1, revealing a high similarity among the isolates (>98%). CONCLUSION: hBoV 1 with minimal sequence variations circulated in children with acute respiratory infections during 2010. More research is needed to determine the clinical severity and outcomes of the minimal sequence variations.
Child
;
Child, Hospitalized
;
Human bocavirus
;
Humans
;
Korea
;
Multiplex Polymerase Chain Reaction
;
Phylogeny
;
Respiratory System
;
Respiratory Tract Infections
;
Viruses
7.Mitotic Indices and Prognosis of Advanced Bladder Cancer.
Jeong Hwan AN ; Seong CHOI ; Hyun Yul RHEW
Korean Journal of Urology 1996;37(2):133-140
We analyzed the prognostic factors, such as sex, age, tumor shape, number, 1ocation, size, TNM stage, WHO grade, modified Bergkvist grade, treatment modality, cytology, type of progression, mitotic activity index(MAI), volume corrected mitotic index(M/V index) and pathologic grade, in a chort of 83 advanced transitional cell carcinoma of bladder who was followed for more than 3 years. N stage of TNM,WHO grade, modified Bergkvist grade and pathologic stage were related to mitotic indices(p<0.05), but cytology was related to MAI only (p<0.05).In univariate analysis of prognostic factors, sex, N and M stage of TNM, progression type, MAI & M/ V index and pathologic stage were related to 5-year survival during follow up. Multivariate analysis of prognostic factors, which were significantly related in univariate analysis, identified MAI as the most important factor(p<0.05), followed by M/V index, N stage of TNM, sex, M stage of TNM and progression type. The result show that advanced transitional cell bladder tumors can be efficiently categorized into prognostic groups by quantitative mitotic frequency analysis.
Carcinoma, Transitional Cell
;
Follow-Up Studies
;
Mitotic Index*
;
Multivariate Analysis
;
Prognosis*
;
Sex Factors
;
Urinary Bladder Neoplasms*
;
Urinary Bladder*
8.A Case of Chronic Pancreatitis Complicated by Retroperitoneal and Intrasplenic Pseudocysts.
Myung Hwan NHO ; Seok Reyol CHOI ; Woo Won SHIN ; Jong Seong KIM
Korean Journal of Gastrointestinal Endoscopy 1991;11(2):351-353
A 69-year-old-male patient was admitted because of left upper quadrant (LUQ) abdominal pain He had hard palpable mass (abaut 15x l0cm) in LUQ abdomen and mild elevated serum alkaline phosphatase (349 IU/L) and amylase (216 U/L) levels at the admission time. Abdominal CT scan revealed huge, well-marginated cystic mass in enlarged spleen with increased densities in dependent portion of cystic mass, about 8x13cm in size. Another small well-capsulated. cystic mass in anterior aspect of spleen was also seen. After ERCP, urgent surgical intervention was done. Final diagnosis was chronic pancreatitis with large intrasplenic (l2x9.5 cm) and retroperitoneal pseudocysts. So we are reporting above case with pertinent review of literatures.
Abdomen
;
Abdominal Pain
;
Alkaline Phosphatase
;
Amylases
;
Cholangiopancreatography, Endoscopic Retrograde
;
Diagnosis
;
Humans
;
Pancreatitis, Chronic*
;
Spleen
;
Splenomegaly
;
Tomography, X-Ray Computed
9.120 liver resections:a four year experience.
Seong Hwan HWANG ; Young Kil CHOI ; Sang Hyo KIM ; Nak Whan PAIK
Journal of the Korean Surgical Society 1993;45(1):38-46
No abstract available.
Liver*
10.Ultrasonic Determination of Axial Length in Pseudophakia.
Journal of the Korean Ophthalmological Society 2000;41(5):1164-1169
To investigate the accuracy of ultrasonic measurement of axial length in pseudophakia, we measured axial length by ultrasonic scan at pre-and post-operatively.One hundred nine eyes of 97 patients were divided according to the type of intraocular lens.We compared pre-and post-operative axial lengths with Ocuscan[Alcon, U.S.A.]. The postoperative axial lengths were measured in phakic, aphakic, and pseudophakic mode.In pseudophakic mode, the velocity in IOL was set at the rate of 980, 2200 and 2718m/sec for silicone, acrylic, and PMMA lens respectively. The postoperative axial lengths in pseudophakic mode were closest to the preoperative values in all groups. In conclusion, we can get the closest values to preoperative axial lengths by setting the velocity in pseudophakic mode at the rate of 980, 2200 and 2718m/sec for silicone, acrylic and PMMA lens, respectively.
Humans
;
Lenses, Intraocular
;
Polymethyl Methacrylate
;
Pseudophakia*
;
Silicones
;
Ultrasonics*