1.Treatment of ectopic pregnancy by the laparoscopy guided methotrexate injection.
Young Chul YOU ; Heung Yeol KIM ; Tae Sung LEE ; Sung Do YOON ; Young Wook SUH
Korean Journal of Obstetrics and Gynecology 1993;36(7):1322-1326
No abstract available.
Female
;
Laparoscopy*
;
Methotrexate*
;
Pregnancy
;
Pregnancy, Ectopic*
2.Value of color ultrasonography in anetnatal prediction of nuchal cord.
Young Won PARK ; Young Wook YOON ; Jae Sung CHO ; Kyeong SEO ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(7):2517-2522
No abstract available.
Nuchal Cord*
;
Ultrasonography*
3.A Case of Graves' Disease associated with Myasthenia Gravis treated by Bilateral Subtotal Thyroidectomy and Total Thymectomy.
Yoon Sok CHUNG ; Ki Sun RYU ; Euy Young SOH ; In Soo JOO ; Yoon Mi JIN ; Han Young RYU ; Myung Wook KIM
Journal of Korean Society of Endocrinology 1997;12(3):473-477
Graves disease occur in association with myasthenia gravis is rare. We report a case of Graves disease and myasthenia gravis treated by bilateral subtotal thyroidectomy and total thymectomy simultaneously. A 37 year old woman was admitted with anterior neck mass and ptosis. Various examinations were compatible with combined Graves disease and myasthenia gravis. The bilateral subtotal thyroidectomy and total thymectomy were done simultaneously. The pathologic diagnosis was Graves disease and thymic hyperplasia. The patients postoperative course was uneventful. The thyroid function of patient became euthyroid and the clinical symptoms related with myastenia gravis resolved during follow up period.
Adult
;
Diagnosis
;
Female
;
Follow-Up Studies
;
Graves Disease*
;
Humans
;
Myasthenia Gravis*
;
Neck
;
Thymectomy*
;
Thymus Hyperplasia
;
Thyroid Gland
;
Thyroidectomy*
4.The Changes of Ventricular Activation Time According to Acute Myocardial Ischemia.
Seong Wook HAN ; Yoon Nyun KIM ; Ki Young KIM ; Chang Wook NAM ; Kee Sik KIM ; Kwon Bae KIM
Korean Circulation Journal 2001;31(3):317-326
BACKGROUND AND OBJECTIVES: In acute myocardial ischemia, the conduction velocity of action potential is decreased by several electrophysiological and physical factors. The ventricular activation time(VAT) is a time duration of electrical impulse propagating from endocardium to epicardium. The goal of this study is to determine whether the reduction in conduction velocity in acute myocardial ischemia can lead a change in VAT. MATERIALS AND METHOD: Thirty patient, 18 males and 12 females, who had received percutaneous balloon coronary angioplasty(PTCA) were enrolled. The mean age was 59 years old. A twelve lead surface electrocardiogram(ECG) were obtained before, during, 1 minute, 5 minutes, and 10 minutes after the PTCA as digitized data by using Cardiolab EP 4.1 program. The magnitude of the QRS wave was amplified 3 to 4 folds and the speed was increased to 200mm/sec in order to get the VAT easily and accurately. The data was the mean of three consecutive VATs. The number of vessel treated with PTCA included left anterior descending artery(12), left circumflex artery(9), and right coronary artery(9). Among twelve chronic stable angina, sixteen unstable angina, and two acute myocardial infarction patients, twenty six had single and four had two vessel diseases. RESULTS: The significant increase in VAT during PTCA compared to that before PTCA was observed in eight of 12 leads. In addition, the significant decrease in VAT of 1, 5, and 10 minutes after PTCA compared to that during PTCA were noted. Furthermore, 10 minutes after PTCA, VAT decreased significantly compared to that before PTCA. The leads did not show a significant change of VAT depending on target vessels. The ECG of 16 patients showed changes of the ST segment during PTCA. The changes of VAT were not related to the ST segment change. CONCLUSION: The conduction delay from endocardium to epicardium in acute myocardial ischemia was presented as a prolongation of VAT in surface ECG. In addition, the conduction delay was recovered within 5 minutes after relief of ischemia. Therefore, the changes of VAT can possibly be used as one of the noninvasive parameters of myocardial ischemia.
Action Potentials
;
Angina, Stable
;
Angina, Unstable
;
Electrocardiography
;
Endocardium
;
Female
;
Humans
;
Ischemia
;
Male
;
Middle Aged
;
Myocardial Infarction
;
Myocardial Ischemia*
;
Pericardium
;
Thoracic Surgery, Video-Assisted
5.Phenotypic Analysis of Lymphocyte Subpopulation in Cord Blood.
Chan Wook WOO ; Kwang Chul LEE ; Yoon Jeong CHO ; Young Tae KIM
Korean Journal of Pediatric Hematology-Oncology 1997;4(1):118-125
BACKGROUND: Cord blood transplantation has generated much enthusiasm because of the low incidence of GVHD(graft-versus-host disease), even in HLA(Human Leukocyte Antigen) mismatched situations, owing to intrinsic defects in mature T cell functions, and human cord blood is a constantly and easily obtainable source for hematopoietic stem cell. This study was undertaken to elucidate the possible mechanisms of low GVHD incidence observed when cord blood is used for stem cell transplantation. Based on current knowledge of the phenotypic correlates with functional subtypes of peripheral blood lymphocytes, we evaluated lymphocyte subpopulation in cord blood. METHODS: The 25 cord blood and 20 peripheral blood of adult control were included in this study. Monoclonal antibodies(MAb) conjugated with fluorescein-isothiocynate(FITC), phycoerythrin(PE) were used in this study. Heparinized whole blood was stained with mAbs using the whole blood lysis method. We used FACScan flow cytometer with argon laser tuned at 488 nm. Analysis was done by either Simulset or lysis II research software. RESULT: 1) The means of WBC and lymphocyte content were higher in cord blood than in adult blood(p<0.05). 2) The overall percentages of cord blood T(CD3+) cells, B(CD19+) cells, NK(natural killer)(CD16+/CD56+) cells were not different from adult controls. 3) The CD4+ : CD8+ ratio of cord blood was higher than thar of adult controls(2.7 in cord bloods versus 1.8 in adults). 4) The majority of the cord blood cells, both CD4+ and CD8+, co-expressed the CD45RA+ (naive) molecule. 5) The CD57, an antigen present on a subpopulation of NK cells, is absent in cord blood. CONCLUSION: We determined that cord blood contained mainly naive T lymphocytes to be predominantly suppressor cells. We found reduced alloproliferative, allostimulatory and allocytotoxic capacity of cord blood lymphocytes. Therefore, the GVHD may be less readily induced in cord blood transplantation, even in the face of HLA difference.
Adult
;
Argon
;
Fetal Blood*
;
Hematopoietic Stem Cells
;
Heparin
;
Humans
;
Incidence
;
Killer Cells, Natural
;
Leukocytes
;
Lymphocyte Subsets*
;
Lymphocytes*
;
Phenotype
;
Stem Cell Transplantation
;
T-Lymphocytes
6.Plasma Glucose and Insulin Changes during IV Theophyline Therepy in Preterm Infants with Apnea.
Young Wook YOON ; Yeon Kyun OH ; Eun Hee LEE ; Jung Youl SONG
Korean Journal of Perinatology 1998;9(1):26-30
PURPOSE: The purpose of this study was to evaluate the effects of theophylline in preterm infants with apnea on glucose homeostasis and insulin values. METHOD: In this prospective study, level of glucose and insulin were measured from peripheral blood of 8 neonates(1,450+/-114gm, 31+/-2.1week), who were admitted from April 1, 1997 to July 30, 1997 in Neonatal Intensive Care Unit of Wonkwang University Hospital, for apnea of prematurity(> 20 sec with bradycardia and/or cyanosis) were given aminophylline intravenously. Blood samples were collected at pretreatment, posttreatment 2hours, 1-2days, 3-4days, 5-7days and posttreatment 48hours, and compare to those of the 8 control neonates(1,711+/-232gm, 32+/-1.7week). RESULTS: The results were as follows: 1) Plasma glucose values were significantly higher in the treatment group than those of the control group at 1-2days(104.67+/-20.39mg/dL vs 83.43+/-15.86mg/dL) and 3-4days(111.0+/-32.39mg/dL vs 79.25+/-14.03mg/dL)(p<0.05). 2) Plasma glucose values which were increased at 1-2days(104.67+/-20.39mg/dL)and 3-4days(111.0+-32.39mg/dL), were significantly higher than pretreatment values(66.33+/-31.19mg/ dL)(p<0.02), but were not increased to the level of hyperglycemia(> 125mg/dL). 3) The mean posttreatment glucose levels drawn at 48hours after discontinuation of theophylline was significantly decreased to the values of pretreatment values compared to those of the 1-2days and 3-4days(p<0.01). 4) Insulin concentrations were also increased insignificantly when blood glucose were increased in the treatment group compared with control group. CONCLUSION: In conclusion, intravenous administration of theophylline produces hyperglycemia significantly, including an increase in a serum insulin. But, clinically significant hyperglycemia(> 125mg/dL) was not noted. So, plasma glucose may not need to be monitored in preterm apneic infants receiving theophylline. But, further studies are need to elucidate the effect of theophylline considering the serum toxic level of theophylline.
Administration, Intravenous
;
Aminophylline
;
Apnea*
;
Blood Glucose*
;
Bradycardia
;
Glucose
;
Homeostasis
;
Humans
;
Hyperglycemia
;
Infant
;
Infant, Newborn
;
Infant, Premature*
;
Insulin*
;
Intensive Care, Neonatal
;
Plasma*
;
Prospective Studies
;
Theophylline
7.Prevalence of Intestinal Metaplasia, Dysplasia and Helicobacter pylori Infection by Aging.
Soon Young OH ; Su Mi YOON ; Dong Wook KANG ; Mi Ra PARK
Journal of the Korean Geriatrics Society 1999;3(1):25-33
BACKGROUND : The recent studies shows that Helicobacter pylori (H. pylori) related chronic gastritis leads to dysplasia, intestinal metaplasia and gastric cancer. The aim of this study was to determine the association between precancerous lesion of stomach (dysplasia, intestinal metaplasia) and H.pylori infection in the elderly. METHODS : 469 patients were enrolled this study, Patients with intestinal metaplasia or dysplasia (case, n=148) were compared with controls (without intestinal metaplasia and dysplasia, n=321) about H. pylori positive rates H. pylori positivity was confirmed by histologic determination of endoscopic biopsy specimens. Results : 1) Among study populations H. pylori positive rates were 51.8% (55.8% in male, 40.7% in female). It was significantly higher in male (p=0.001). 2) There were no significant differences in sex distribution between cases and controls, but in old age, the cases were more frequent than in young age (p<0.001). 3) Age distribution of H. pylori positive rates were not significant between cases and controls. 47.5% in intestinal metaplasia, 43.4% in dysplasia, 21.3% in dysplasia+intestinal metaplasia were H. pylori positive. H. pylori positive rates were more higher in controls than cases, followed by in decreasing order by the intestinal metaplasia group, the dysplasia group, and those having both (p=0.003). 4) Age and sex adjusted H. pylori positive rates were more higher in controls (42.7%) than in cases (25.0%)(p<0.009). CONCLUSION : The prevalence of intestinal metaplasia and dysplasia was age dependent. But we couldn't explain the carcinogenic effect of H. pylori, because H. pylori positive rates were lower in cases than in controls
Age Distribution
;
Aged
;
Aging*
;
Biopsy
;
Gastritis
;
Helicobacter pylori*
;
Helicobacter*
;
Humans
;
Male
;
Metaplasia*
;
Prevalence*
;
Sex Distribution
;
Stomach
;
Stomach Neoplasms
8.In-Stent Stenosis of Stent Assisted Endovascular Treatment on Intracranial Complex Aneurysms.
Kyeong Wook YOON ; Young Joon KIM
Journal of Korean Neurosurgical Society 2010;48(6):485-489
OBJECTIVE: To introduce the frequency and segment analysis of in-stent stenosis for intracranial stent assisted endovascular treatment on complex aneurysms. METHODS: A retrospective study was performed in 158 patients who had intracranial complex aneurysms and were treated by endovascular stent application with or without coil embolization. Of these, 102 patients were evaluated with catheter based angiography after 6, 12, and 18 months. Aneurysm location, using stent, time to stenosis, stenosis rate and narrowing segment were analyzed. RESULTS: Among follow-up cerebral angiography done in 102 patients, 8 patients (7.8%) were shown an in-stent stenosis. Two patients have unruptured aneurysm and six patients have ruptured one. Number of Neuroform stents were 7 cases (7.5%) and Enterprise stent in 1 case (11.1%). Six patients demonstrated in-stent stenosis at 6 months after stent application and remaining two patients were shown at 12 months, 18 months, respectively. CONCLUSION: In-stent stenosis can be confronted after intracranial stent deployment. In our study, no patient showed symptomatic stenosis and there were no patients who required to further treatment except continuing antiplatets medication. In-stent stenosis has been known to be very few when they are placed into the non-pathologic parent artery during the complex aneurysm treatment, but the authors found that it was apt to happen on follow up angiography. Although the related symptom was not seen in our cases, the luminal narrowing at the stented area may result the untoward hemodynamic event in the specific condition.
Aneurysm
;
Angiography
;
Arteries
;
Catheters
;
Cerebral Angiography
;
Constriction, Pathologic
;
Dimaprit
;
Follow-Up Studies
;
Hemodynamics
;
Humans
;
Parents
;
Phenobarbital
;
Retrospective Studies
;
Stents
9.Fluoroscopy Guided Percutaneous Catheter Drainage of Pneumothorax in Patients with Failed Chest Tube Drainage.
Yup YOON ; Ga Young PARK ; Joo Hyung OH ; Dong Wook SUNG
Journal of the Korean Radiological Society 1995;33(6):889-892
PURPOSE: To evaluate efficacy and the safety of percutaneous catheter drainage in patients with pneumothorax that is difficult to treat with closed thoracotomy. MATERIALS AND METHODS: We retrospectively reviewed effectivenss of percutaneous catheter drainage (PCD) in 10 patients with pneumothorax. The catheter was inserted under fluoroscopic guidance. Seven patients had spontaneous pneumothorax caused by tuberculosis (n=4), ruptured bullae (n=2), and histiocytosis-X(n=l). Three patients had iatrogenic pneumothorax caused by trauma (n=l) and surgery(n=2). All procedures were performed by modified Seldinger's method by using 8F-20F catheter. RESULTS: All catheters were inserted successfully. In 9 of 10 patients, the procedure was curative without further therapy. Duration of catheter insertion ranged from 1 day to 26 days. In the remaining 1 patient in whom multiple pneumothorax occurred after operation, catheter insertion was performed twice. CONCLUSION: Percutaneous catheter drainage under fluoroscopic guidance is effective and safe procedure for treatment of pneumothorax in patients with failed closed thoracotomy.
Catheters*
;
Chest Tubes*
;
Drainage*
;
Fluoroscopy*
;
Humans
;
Pneumothorax*
;
Retrospective Studies
;
Thoracotomy
;
Thorax*
;
Tuberculosis
10.Fluoroscopy Guided Percutaneous Catheter Drainage of Pneumothorax in Patients with Failed Chest Tube Drainage.
Yup YOON ; Ga Young PARK ; Joo Hyung OH ; Dong Wook SUNG
Journal of the Korean Radiological Society 1995;33(6):889-892
PURPOSE: To evaluate efficacy and the safety of percutaneous catheter drainage in patients with pneumothorax that is difficult to treat with closed thoracotomy. MATERIALS AND METHODS: We retrospectively reviewed effectivenss of percutaneous catheter drainage (PCD) in 10 patients with pneumothorax. The catheter was inserted under fluoroscopic guidance. Seven patients had spontaneous pneumothorax caused by tuberculosis (n=4), ruptured bullae (n=2), and histiocytosis-X(n=l). Three patients had iatrogenic pneumothorax caused by trauma (n=l) and surgery(n=2). All procedures were performed by modified Seldinger's method by using 8F-20F catheter. RESULTS: All catheters were inserted successfully. In 9 of 10 patients, the procedure was curative without further therapy. Duration of catheter insertion ranged from 1 day to 26 days. In the remaining 1 patient in whom multiple pneumothorax occurred after operation, catheter insertion was performed twice. CONCLUSION: Percutaneous catheter drainage under fluoroscopic guidance is effective and safe procedure for treatment of pneumothorax in patients with failed closed thoracotomy.
Catheters*
;
Chest Tubes*
;
Drainage*
;
Fluoroscopy*
;
Humans
;
Pneumothorax*
;
Retrospective Studies
;
Thoracotomy
;
Thorax*
;
Tuberculosis