1.The Effects of Bleopuncture Technique in the Treatment of Warts.
Korean Journal of Dermatology 1994;32(3):446-450
BACKGROUND: The warts may promptly return despite being treated with a myriad of destructive methods. The most successful treatment has been the intralesional injection of bleomycin sulfate, but unplessant side effects caused by the difficulty of infiltrating only the wart tissue have limited its use. OBJECTIVE: Our purpose was to determine the effects of bleopunciure technique in the treatment of warts. METHODS: We performed a multiple puncture technique using a 25 gauge hypodermic needle to introduce bleomycin hydrochloricle into warts. RESULTS: This technique resulted in elimination of 91.4% of a random series on 105 warts after a single treatment. Recurrence and side effects were not observed during a 1 year follow-up period. CONCLUSION: We experienced a superior technique for introducing Heomycin into the wart, which has resulted in the cure of a signficant number of warts following a sing treatment.
Bleomycin
;
Follow-Up Studies
;
Injections, Intralesional
;
Needles
;
Punctures
;
Recurrence
;
Warts*
2.Percutaneous Drainage of Pancreatic Pseudocysts: Analysis of 16 Cases.
Journal of the Korean Radiological Society 1994;30(5):817-822
PURPOSE: We reviewed 13 cases of pancreatic pseudocysts treated by percutaneous catheter drainage to determine the value and effectiveness of the procedure. MATERIALS AND METHODS: Sixteen pancreatic pseudocysts(nine infected, seven noninfected) were drained in 13 patients. Access routes were determined by images on CT scan and procedures were performed under fiuoroscopic guidance. Ultrasonogram was used as a guide for drainage when there were bowel loops near the access routes. Various access routes were used for catheter drainage:transperitoneal (10), retroperitoneal (3), transsplenic (2) transhepatic (1). RESULTS: Percutaneous catheter drainage cured 15 of 16 pancreatic pseudocysts(93.8%). No recurrance was encountered in the clinical follow-up of 7 to 69 months(mean 35 months). The mean duration of drainage was 29 days(infected, 24 days; noninfected, 39 days). Five pseudocysts(31%) were communicated with pancreatic duct The mean duration of drainage in these cases was 38 days. Spontaneous of the pancreatic pseudocysts to the gastrointestinal tract was occurred in 3 pseudocysts. Mean duration of drainage in pseudocysts with fistulas was 19 days. CONCLUSION: Percutaneous cather drainage is a safe and effective front-line treatment method in most pancreatic pseudocysts if drainage is done with a adequate follow-up and catheter care.
Catheters
;
Drainage*
;
Fistula
;
Follow-Up Studies
;
Gastrointestinal Tract
;
Humans
;
Pancreatic Ducts
;
Pancreatic Pseudocyst*
;
Tomography, X-Ray Computed
;
Ultrasonography
3.A case of thoracophagus diagnosed by abdominal ultrasonorgaphy at second trimester.
Young Joo CHOI ; Yong Mee LEE ; Kyu Ho CHUNG ; Sang Cheol PARK ; Kyu Hong CHOI
Korean Journal of Obstetrics and Gynecology 1992;35(8):1228-1232
No abstract available.
Female
;
Humans
;
Pregnancy
;
Pregnancy Trimester, Second*
4.A clinical study on ectopic pregnancy.
Yong Mi LEE ; Young Joo CHOI ; Kyu Ho JEUNG ; Young Keon YO ; Kyu Hong CHOI
Korean Journal of Obstetrics and Gynecology 1993;36(7):1369-1375
No abstract available.
Female
;
Pregnancy
;
Pregnancy, Ectopic*
5.The Role of 5-HT Receptors on the Acetylcholine Release from the Rat Striatum.
Yeong Hwa JOO ; Kyu Yong JUNG ; Bong Kyu CHOI
Korean Journal of Psychopharmacology 2001;12(2):140-146
The aim of this study was to investigate the role of the 5-HT receptors in acetylcholine (ACh) release from the striatum. Slices from the rat striatum and synaptosomes were incubated with [3H]-choline and the release of the labelled products was evoked by electrical (3 Hz, 2 ms, 5 V/cm, rectangular pulses, 2 min) and potassium-stimulation (25 mM), respectively, and the influence of various serotonergic drugs on the evoked tritium outflows was investigated. Serotonin decreased the electrically-evoked ACh release in striatum in a concentration-dependent manner without the change of basal release. In hippocampal and entorhinal cortical slices, serotonin did not affect the evoked and basal release of ACh, but, at large dose (30 microM) decreased the evoked ACh release in hippocampus. 2,5-Dimethoxy-4-iodoamphetamine (DOI), a specific 5-HT 2A/2C agonist, decreased evoked ACh release in the striatum. CGS-12066A (5-HT 1B agonist), m-chlorophenyl-biguanide (5-HT 3 agonist) and 5-[(dimethyl -amino)methyl]-3-(1-methyl-1H-indol-3-yl)-1,2,4-oxadiazole (5-HT 3 antagonist) did not affect the evoked and basal ACh release in all tissues. Ritanserin, a specific 5-HT 2A/2C antagonist, blocked the inhibitory effects of serotonin and DOI, whereas, ketanserin, an another type of specific 5-HT 2A/2C antagonist did not affect the inhibitory effects of serotonin and DOI. In striatal synaptosomal preparation, serotonin and DOI did not affect the K +-evoked ACh release. These findings suggest that ritanserin-sensitive 5-HT 2A/2C receptors located in the soma and/or axons of the striatal cholinergic neurons play a important role in ACh release.
Acetylcholine*
;
Animals
;
Axons
;
Carisoprodol
;
Cholinergic Neurons
;
Hippocampus
;
Ketanserin
;
Rats*
;
Receptors, Serotonin*
;
Ritanserin
;
Serotonin Agents
;
Serotonin*
;
Synaptosomes
;
Tritium
6.Neuronal Cytoskeletal Abnormalities and Neurotrophin Receptor Immunoreactivity in Severe Cerebral Cortical Dysplasia.
Joo Yong KIM ; Jae Kyu ROH ; Chun Kee CHUNG
Journal of the Korean Neurological Association 2000;18(2):199-210
BACKGROUND: Cerebral cortical dysplasia (CD) is one of the important causes of intractable epilepsies and characterized histologically by disorganized cortical lamination and cytomegalic dysplastic neurons. Although various cytoskeletal abnormalities have been found in dysplastic neurons of CD, the pathogenetic role of dysplastic neurons has rarely been investigated. METHODS: In this study, immunohistochemical analysis was performed using antibodies against non-phosphorylated high- or medium-molecular weight neurofilament protein and microtubule-associated protein 2 (MAP-2) in surgical specimens of CD. In order to know the possible relationship of dysplastic neurons with cytoskeletal abnormalities and various neurotrophin receptors, NGFR p75, trkA, trkB, and trkC immunoreactivities were also analyzed. RESULTS: Dysplastic neurons showed strong immunoreactivities for non-phosphorylated high- or medium-molecular weight neurofilament protein and MAP-2, which might reflect abnormal outgrowth and altered plasticity of the dysplastic neurons. TrkB and trkC were strongly expressed in dysplastic neurons and NGFR p75 was also strongly expressed in some dysplastic neurons. CONCLUSIONS: Since it has been known that brain-derived neurotrophic factor (BDNF) and neurotrophin-3 (NT-3) have effects on the differentiation of neuronal precursor cells from the cortex and on dendritic and axonal arborization, increased expression of trkB and trkC may play a role in cytoskeletal abnormalities and altered synaptic transmission in dysplastic neurons.
Antibodies
;
Axons
;
Brain-Derived Neurotrophic Factor
;
Epilepsy
;
Malformations of Cortical Development*
;
Microtubule-Associated Proteins
;
Neurons*
;
Plastics
;
Receptors, Nerve Growth Factor
;
Synaptic Transmission
7.Histopathologic Findings after Experimental Penetrating Keratoplasty using Dacron-Gore-Tex(R) Combined Graft in Rabbits: Treatment of Corneal Perforation using Synthetic Materials. Report II.
Jong Kyu LEE ; Kee Yong CHOI ; Byung Joo YOON
Journal of the Korean Ophthalmological Society 1993;34(11):1093-1100
The purpose of this study is to evaluate the histopathologic findings after experimental penetrating keratoplasty using Dacron-Gore-Tex(R) combined graft in rabbits and the clinical efficacy of the treatment of corneal perforation using synthetic materials. Type A which used end to end fixation showed better results than that of type B which used intralamellar fixation and, however, complications and instability of graft occured in most eyes of both types. Type C which modified type B and reduced the thickness of intralamellar portion of graft showed relatively good results compared with type A and B, but there was still instability. Leakage from anterior chamber in early postoperative period prior to fiibrovascular invasion into graft was considered as the main cause of instability of graft. Therefore we performed type D which emphasized on preventing leakage, and well-maintained anterior chamber without extrusion of graft, that is, the best result among all 4 types was observed until 6 weeks postoperatively. Although further study is needed, we think that Dacron-Gore-Tex(R) combined graft can be a good substitute for the management of corneal perforation.
Anterior Chamber
;
Corneal Perforation*
;
Keratoplasty, Penetrating*
;
Polyethylene Terephthalates
;
Postoperative Period
;
Rabbits*
;
Transplants*
8.Histopathologic Findings After Experimental Penetrating Keratoplasty Using Expanded Polytetrafluoroethylene(Gore-Tex(R))in Rabbits: Treatment of Corneal Perforation Using Synthetic Materials. Report I.
Jong Kyu LEE ; Kee Yong CHOI ; Byung Joo YOON
Journal of the Korean Ophthalmological Society 1993;34(9):821-828
Although there had been many studies for evaluating an usefulness of expanded polytetrafluoroethylene(Gore-Tex(R)) as a temporary treatment of corneal perforation and a supporting skirt of keratoprosthesis, complications and instability of graft had limited the clinical applications. To find histopathologic factors that can contribute to the instability of graft and to try to modify the surgical methods with models of graft, serial examinations including biomicroscopy and histopathology were performed. According to the results, we were able to divide the causes of instability into two categories as a function of time. Epithelial down growth into the interface between graft and cornea with absence of epithelial coverage over the graft may cause leakage from anterior chamber in early period. Absence of fibrovascular invasion into Gore-Tex(R) resulting no cohesion between graft and cornea might be a factor of instability in late period. Based on these results, modification of surgical techniique and models of graft are needed. Several methods of modificiation are suggested in this report.
Anterior Chamber
;
Cornea
;
Corneal Perforation*
;
Keratoplasty, Penetrating*
;
Rabbits*
;
Transplants
9.A Method to Prevent Life-threatening Intraperitoneal Bleeding During Transjugular Intrahepatic PortosystemicShunt Creation.
Journal of the Korean Radiological Society 1998;38(4):635-638
PURPOSE: To prevent intraperitoneal bleeding, it is critical that the extrahepatic portal vein should not bepunctured during transjugular intrahepatic portosystemic shunt (TIPS). There has, however, been no procedure fordefining the anatomic relationship between the hepatic capsule and the portal vein segment before shunt formation.To avoid a possibly catastrophic outcome of extrahepatic portal puncture before shunt creation, we thereforedevised a new method; the purpose of this study is to report its efficacy and feasibility. MATERIALS AND METHODS:Whenever a portal vein was punctured, we advanced a 9F sheath over a guidewire into the portal vein before balloondilatation of the tract. Contrast material was then injected through the sheath as this was slowly withdrawn fromthe portal vein towards the hepatic vein. When contrast material extravasated or spilled into the peritonealspace, thus suggesting extrahepatic portal vein puncture, a more peripheral segment of the portal vein waspunctured, and a shunt was created using this new tract. We applied this method to 130 consecutive patients whounderwent TIPS to control variceal bleeding due to liver cirrhosis. In all cases, portography and ultrasonographywere used for immediate confirmation of the procedure. RESULTS: Puncture of the extrahepatic portal vein segmentoccurred in three out 130 (2.3%) patients. In these three, TIPS was successfully created using the methoddescribed above. Clinical and ultrasonographic follow-up showed that no patients suffered intraperitonealbleeding. CONCLUSION: For preventing intraperitoneal hemorrhage during TIPS creation, our method is effective andfeasible.
Esophageal and Gastric Varices
;
Follow-Up Studies
;
Hemorrhage*
;
Hepatic Veins
;
Humans
;
Hypertension, Portal
;
Liver Cirrhosis
;
Portal Vein
;
Portasystemic Shunt, Surgical
;
Portography
;
Punctures
10.The effect of systemic nifedipine pretreatment on renal function & plasma renin activity in experimental ischemic acute renal failure.
Won Choong CHOI ; Dae Ryong CHA ; Young Joo KWON ; Won Yong CHO ; Hyoung Kyu KIM
Korean Journal of Nephrology 1991;10(4):534-544
No abstract available.
Acute Kidney Injury*
;
Nifedipine*
;
Plasma*
;
Renin*