1.Prepapillary Vascular Loops Associated with Retinal Diseases.
Journal of the Korean Ophthalmological Society 2001;42(7):1111-1116
PURPOSE: Prepapillary vascular loops are blood vessels that project from the optic disc into the vitreous cavity and then return to the disc to continue their natural cource. Ninety percent are arterial in origin and usually congenital anomaly. We report four cases of prepapillary vascular loops associated with retinal and choroidal disorders. METHODS: Prepapillary vascular channel which showed twisted or ringlike appearance without leakage on fluorescein angiogram constituted the diagnosis. However, there may be a sector delay in filling of the optic disc or retina supplied by the loop due to the increased distance that blood must travel through the loop. RESULTS: These cases are not associated with vision-threatening diseases. The associated retinal diseases are diabetic retinopathy in one case, retinitis pigmentosa in one case, contralateral posterior uveitis in two cases. They are arterial loops. In two eyes were observed multiple prepapillary vascular loops. The vessels may appear as simple hairpin loops, spiral, or corkscrew configuration. In our cases, the presence of a cilioretinal artery and retinal artery obstruction could not be determined; other complication associated with prepapillary vascular loops were not observed. CONCLUSIONS: We assume that prepapillary vascular loops may occur acquiredly associated with other ocular diseases.
Arteries
;
Blood Vessels
;
Choroid
;
Diabetic Retinopathy
;
Diagnosis
;
Fluorescein
;
Retina
;
Retinal Artery
;
Retinal Diseases*
;
Retinaldehyde*
;
Retinitis Pigmentosa
;
Uveitis, Posterior
2.MR Imaging of Malignant Ovarian Tumors.
Jun Ho KIM ; Heoung Keun KANG ; Jeong Jin SEO ; Jae Kyu KIM ; Woong Jae MOON ; Ho Sun CHOI
Journal of the Korean Radiological Society 1994;31(6):1149-1155
PURPOSE: To evaluate MRI findings of malignant ovarian tumors. MATERIALS AND METHODS: MRI findings were retrospectively reviewed in 25 patients with surgically confirmed 30 malignant ovarian tumors(common epithelial tumor;23, sex cord stromal tumor;2, endodermal sinus tumor ; 1, metastatic tumor ;4). The findings evaluated were the lesion size, solid and/or cystic component, wall thickness, septal thickness, necrosis, invasion of adjacent organ, ascites, and adenopathy. RESULTS: MRI findings of the malignant ovarian tumors were as follow:Size of lesion was 5-35cm(mean 14cm) ;solid component was present in 80%(24/30);wall thickness was more than 3ram in 90%(27/30);septal thickness was more than 3ram in 70%(21/30);tumor necrosis was present in 40%(12/30%) ;invasion of adjacent organ was present in 76%(19/25);ascites was present in 56%(14/25);lymphadenopathy was present in 24% (6/25). MRI findings of absence of solid component(6/6), even wall and septal thickness(7/7, 19/19) were found only in epithelial tumors. Uneven septal thickness more than 3mm(7/11) was a predominant MRI findings of non-epithelial tumors. Well-defined cystic lesion within solid component was seen in Krukenberg tumors. CONCLUSION: Evaluation of the lesion size, internal architecture, invasion of adjacent organ, ascites, and lymphadenopathy in MRI would enable diagnosis of malignant ovarian tumors and could lead to possible differential diagnosis of epithelial tumors from non-epithelial tumors.
Ascites
;
Diagnosis
;
Diagnosis, Differential
;
Endodermal Sinus Tumor
;
Humans
;
Krukenberg Tumor
;
Lymphatic Diseases
;
Magnetic Resonance Imaging*
;
Necrosis
;
Retrospective Studies
3.Comparison of the Complications and Urodynamic Parameters for Orthotopic Bladder Substitution with using Ileocolic or Ileal Segments after Radical Cystectomy.
Kang Jun CHO ; Dong Wan SOHN ; Sae Woong KIM
Korean Journal of Urology 2007;48(5):494-499
PURPOSE: The objective of this study was to compare the complications and urodynamic parameters of the patients who underwent orthotopic bladder substitution with using ileocolic or ileal segments after radical cystectomy for treating invasive bladder cancer. MATERIALS AND METHODS: Between January 1990 and April 2006, 260 patients with invasive bladder cancer underwent radical cystectomy and construction of the urinary diversion; ileal conduit, indiana pouch, ileocolic neobladder, ileal neobladder were all done at St. Mary's Hospital. The mean age of the patient was 61.8 years (range: 46-86). The ratio of male and female was 88%/12%. Forty nine patients received an orthotopic ileocolic neobladder and 45 patients received an orthotopic ileal neobladder. The complications and urodynamic parameters were compared in both groups. RESULTS: The orthotopic ileocolic neobladder after radical cystectomy for treating invasive bladder cancer has been performed between 1990 and 1996 and the orthotopic ileal neobladder has been performed between 1996 and 2006. Ileocolic neobladder related complications developed in 10 patients; neobladder leakage in 1 (2%), neobladder rupture in 1 (2%), stricture of the ureteroenteric anastomosis site in 4 (8.2%), and stricture of the urethral anastomosis site in 4 (8.2%). Ileal neobladder related complications developed in 11 patients; ureteroenteric stricture in 7 (15.5%), stricture of the urethral anastomosis site in 3 (6.6%) and acute pyelonephritis in 1 (2.2%). The results of the mean maximal flow rate and mean postvoid residual volume were better in the ileal neobladder group than those in the ileocolic neobladder group. CONCLUSIONS: There were no significant differences in complications between ileocolic neobladder and ileal neobladder. The maximal uroflow and residual urine volume of the ileal neobladder were superior to those of the ileocolic neobladder on urodynamic study.
Colon
;
Constriction, Pathologic
;
Cystectomy*
;
Female
;
Humans
;
Ileum
;
Indiana
;
Male
;
Pyelonephritis
;
Residual Volume
;
Rupture
;
Urinary Bladder Neoplasms
;
Urinary Bladder*
;
Urinary Diversion
;
Urodynamics*
4.Clinical Efficacy of Intravenous Immunoglobulin for the Prevention of Recurrent Spontaneous Abortion.
Ji Hong SONG ; Eun Chan PAIK ; Jong Young JUN ; Inn Soo KANG ; Keun Woong NOH ; Dong Hee CHO
Korean Journal of Obstetrics and Gynecology 1998;41(11):2811-2813
The aim of this study was to evaluate the efficacy of intravenous immunoglobulin treatment for recurrent spontaneous abortion. Immunologic causes in either alloimmune or autoimmune type have been suggested for more than 80% of these patients. Various immunotherapy including paternal leukocyte transfusion has been used, but there is controversy on its efficacy and side-effects. The proposed immunomodulatory mechanism of intravenous immunoglobulin includes passive transfer of blocking or anti-idiotype antibody, blockade of Fc receptors, enhancement of supressor T-cell function, down regulation of B cell function. In this study, we used intravenous immunoglobulin for the prevention of spontaneous abortion. Five patients with a history of two or more spontaneous abortions were enrolled in this study. Other etiologic factors such as anatomical, chromosomal, hormonal factors were excluded. Three of them were positive for anti-cardiolipin antibody (ACA). When the pregnancy was diagnosed at about five weeks of gestation, 30 g intravenous immunoglobulin was administered and continued up to 28 weeks with three weeks. Ongoing pregnancy beyond 20 weeks was considered successful. Four among five patients (80%) was successful in maintaining pregnancy now ongoing 20, 31, 33, 39 weeks. One patient with ACA positive had abartion due to anembryonic pregnancy. No adverse reaction was observed during the treatment. From these preliminary data, it is suggested that intravenous immunoglobulin treatment may be effective in maintaining pregnancy in patients with unexplained recurrent spontaneous abortion, Further studies are needed to clarify the its immunomodulatory mechanism and establish a more simplified protocol limiting the use at certain critical period of time.
Abortion, Spontaneous*
;
Critical Period (Psychology)
;
Down-Regulation
;
Female
;
Humans
;
Immunoglobulins*
;
Immunotherapy
;
Leukocyte Transfusion
;
Pregnancy
;
Receptors, Fc
;
T-Lymphocytes
5.Training Nurses, Trainee for Emergency Medical Technitinan, and Firefighters to use Automated External Defibrillator.
Kang Hyun LEE ; Sung Oh HWANG ; Jin Woong LEE ; Jong Chun LIM ; Hyun KIM ; Gu Hyun KANG ; Seong Whan KIM ; Boo Soo LEE ; Ok Jun KIM
Journal of the Korean Society of Emergency Medicine 1997;8(4):505-512
BACKGROUND: Automated external defibrillator(AED) represent a major breakdown to permit more widespread application of the principle of early defibrillation. Many recent efforts to improve emergency medical services(EMS) and increase survival rates are simply efforts to get defibrillation to patients as rapidly as possible. AED is major innovation for the prehospital care of ventricular fibrillation cardiac arrest patients. The purpose of this study is to evaluate the course of initial training to three different groups(nurses, firefighters, and EMT trainee) to use AED. METHOD: We studies the efficacy of education of AED to 33 nurses, 15 EMT trainee, and 16 firefighters. Training lasted 75 mins and included 45 mins an overview of defibrillation, protocols for using the AED, and operation of the AED(Laerdal Heartstart 3000),15 mins demonstraion.4 check list was used to grade the performance of cardiopulmonary resuscitation, operation of the AED, and the time required to deliver the first three defibrillations. RESULT: There were no statistically significant differences in performance and time required to deliver an electrical countershock among the groups(p=0.4). To the second test 92fo of all group completed all steps successfully. The step most often foiled was the preparing of the AED for defibrillation. CONCLUSION: In nurses, EMT trainee, and firefighters, it is both feasible and effective to train AED use irrespective of the degree of the trainee.
Cardiopulmonary Resuscitation
;
Defibrillators*
;
Education
;
Emergencies*
;
Firefighters*
;
Heart Arrest
;
Humans
;
Survival Rate
;
Ventricular Fibrillation
6.Comparison of Clinical Characteristics Between Congenital Fiber Type Disproportion Myopathy and Congenital Myopathy with Type 1 Fiber Predominance.
Sang Jun NA ; Woo Kyung KIM ; Tai Seung KIM ; Seong Woong KANG ; Eun Young LEE ; Young Chul CHOI
Yonsei Medical Journal 2006;47(4):513-518
Congenital myopathies are clinical and genetic heterogeneous disorders characterized by skeletal muscle weakness and specific structural changes in muscle fiber. Congenital myopathy with fiber type disproportion (CFTD) is an established disorder of congenital myopathy. CFTD is characterized by non-progressive childhood neuromuscular disorders with a relatively good prognosis and type 1 fiber predominance and smallness. Congenital myopathy with type 1 fiber predominance (CMT1P) is also a distinct entity of congenital myopathy characterized by non-progressive childhood neuromuscular disorders and type 1 fiber predominance without smallness. Little is known about CMT1P. Clinical characteristics, including dysmorphic features such as hip dislocation, kyphoscoliosis, contracture, and high arch palate, were analyzed along with laboratory and muscle pathologies in six patients with CMT1P and three patients with CFTD. The clinical manifestations of CFTD and CMT1P were similar. However, the frequency of dysmorphic features is less in CMT1P than in CFTD. Long term observational studies of CMT1P are needed to determine if it will change to another form of congenital myopathy or if CMT1P is a distinct clinical entity.
Myopathies, Structural, Congenital/*diagnosis
;
Muscular Diseases/*pathology
;
Muscles/pathology
;
Male
;
Infant
;
Humans
;
Female
;
Child, Preschool
;
Child
;
Biopsy
;
Adult
7.Clinical, Immunohistochemical, and Genetic Analysis in Dystrophinopathy.
Sang Jun NA ; Seong Woong KANG ; Won Joo KIM ; Tai Seung KIM ; Young Chul CHOI
Journal of the Korean Neurological Association 2004;22(5):508-515
BACKGROUND: Dystrophin deficient muscular dystrophies (dystrophinopathies) are the most common form of muscular dystrophy with variable clinical phenotypes from the severe Duchenne to the milder Becker forms (DMD/BMD). Dystrophinopathies are X-linked recessive diseases caused by the mutation of the dystrophin gene. Western blot and immunohistochemical staining for dystrophin, and exon deletion analysis by multiplex polymerase chain reaction (PCR) are important diagnostic tools. We investigated the relationship between the clinical characteristics, immunohistochemistry for dystrophin, and the pattern of exon deletions in patients with dystrophinopathy. METHODS: We reviewed the clinical and laboratory findings of 35 male patients diagnosed as DMD/BMD. Genomic DNA of the 35 patient was analyzed by multiplex PCR using 19 primer sets of dystrophin gene. Immunohistochemistry for dystrophin of muscle biopsy tissue was performed in all cases. RESULTS: The mean age of symptom onset in 35 patients was 4.6 +/- 2.7 years [range, 2-15 years]. Twenty-four of 35 (68.6%) patients showed complete loss (C-, Rod-, N terminal), and 11 of 35 (31.4%) patient showed incomplete loss of dystrophin in immunohistochemistry. Of the 35 patients, 20 had deletions (57%) by multiplex PCR analysis. Sixteen of 20 patients (80%) had exon deletions between exon 45 and 52. CONCLUSIONS: Immunohistochemistry of biopsied muscle specimen is an important diagnostic method for expression and localization of dystrophin. The exon deletion analysis by multiplex PCR using peripheral blood is also a simple and useful test for the diagnosis of dystrophinopathies, although it has limited sensitivity.
Biopsy
;
Blotting, Western
;
Diagnosis
;
DNA
;
Dystrophin
;
Exons
;
Humans
;
Immunohistochemistry
;
Male
;
Multiplex Polymerase Chain Reaction
;
Muscular Dystrophies
;
Phenotype
8.Solitary Intradural Metastatic Tumor From Renal Cell Carcinoma: A Case Report.
Seong Jun AHN ; Moo Ho SONG ; Seong Ho YOO ; Min soo LEE ; Suk Woong KANG ; Buyng Joo KIM
Journal of Korean Society of Spine Surgery 2009;16(4):299-303
Most of intradural tumors are primary tumors and few of them are metastatic tumors. Especially, spinal intradural metastatic tumors which are derived from renal cell carcinoma are rarer. Even though such tumors occur, it accompany with brain metastasis in many cases. And there was no report regarding isolated intradural metastasis, without metastasizing on brain or other central nervous system organs, in domestic.
Brain
;
Carcinoma, Renal Cell
;
Central Nervous System
;
Neoplasm Metastasis
9.Three Cases of Biliary Drainage in High Grade Malignant Biliary Stricture Using Soehendra Stent Retriever.
Jeong Ho HEO ; Jae Seung LEE ; Hyong Jun JOO ; Jeong Ryol KIM ; Mong JO ; Woong Seock YANG ; Dae Hwan KANG
Korean Journal of Gastrointestinal Endoscopy 2002;24(1):62-65
Malignant biliary or pancreatic duct stricture is dilatated using dilatating catheter or balloon catheter but a high grade stricture is difficult to dilate by general dilatating methods. Using Soehendra stent retriever is an effective method for exchanging an impacted stent. Recently, high grade malignant biliary strictures have been dilatated by Soehendra stent retriever. We report 3 cases of successful biliary drainage in high grade malignant biliary strictures using 7 Fr Soehendra stent retriever.
Catheters
;
Constriction, Pathologic*
;
Drainage*
;
Pancreatic Ducts
;
Stents*
10.A Case of Constrictive Pericarditis with Localized Pericardial Effusion Simulating a Cystic Mass.
Jung Ae LEE ; Bong Seog KIM ; Hee Jun CHO ; Jae Kwan SONG ; Jhin Oh LEE ; Tae Woong KANG ; Hyo Yoon KIM ; Jae Il ZO ; Young Mog SHIM
Korean Circulation Journal 1991;21(4):791-796
Chronic constrictive pericarditis is an uncommon disease, but an importanat one because of its potential curability. It usually begins with an initial episode of acute pericarditis often with a pericardial effusion which may not be detected clinically. This then progresses to resorption of the effusion followed by obliteration of pericardial abity with formation of fibrotic tissue, which results in symmetrical scarring that produce uniform restriction. In general, there are no specific problems due to remained pericardial effusion in the clinically manifestated case of constrictive pericarditis. We report a case of chronic constrictive pericarditis with localized pericardial effusion, which caused to hemodynamic compromise due to local compression of the right ventricle.
Cicatrix
;
Heart Ventricles
;
Hemodynamics
;
Pericardial Effusion*
;
Pericarditis
;
Pericarditis, Constrictive*