1.Antiviral action of aloe extracts.
Pyung Woo LEE ; Yun Cheol KIM ; Dong Hoon CHUNG
Journal of the Korean Society of Virology 1992;22(2):207-215
No abstract available.
Aloe*
2.Maaji virus: I. identification and antigenic characterization of a new Hantavirus isolated from apodemus mice(apodemus agrarius coreae ) in Korea.
Pyung Woo LEE ; Dong Hoon CHUNG ; Yun Cheol KIM
Journal of the Korean Society of Virology 1992;22(2):187-196
No abstract available.
Animals
;
Hantavirus*
;
Korea*
;
Murinae*
3.Transnasal Edoscopic Reduction Of Medial Orbital Blowout Fracture.
Woo Cheol CHUNG ; Myung Ju LEE ; Yang Soo KANG ; Jeong Yeol YANG ; Han Jo NA ; Hong Cheol LIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(6):1101-1106
As the use computed tomographic (CT) scanning spread, the diagnosis of blowout fractures of the medial orbital wall increased. Now, the diagnosis of blowout fracture in the medial wall are not uncommon. Conventionally, the surgery of blowout fractures in medial orbital wall was performed by the various approach with external incision. The conventional method had seveal possible disadvantages, including an external scar, incomplete reduction, increased mobidity rate and general anesthesia. Recently, endoscopic reconstruction of the medial orbital wall has provided good functional and cosmetic results. We performed endoscopic transnasal reduction surgery without external incision in 12 cases of medial blowout fracture under local anesthesia. The fractured bony fragments were removed after the intranasal ethmoidectomy and the entrapped medial rectus was released. And then a sheet of silicone late or uncinate process were placed on the fracture site. For the maintain of the position of fractured wall, Merocel packing or urinary ballon catheter were used in orbital fracture site for 1-3 weeks. There were no specific complications related to this procedure. Result of the surgery in all cases were satisfactory. In this article, we discussed the surgical procedure, the benifit of the transnasal endoscopic approach, the indications for surgery, and possible comlications.
Anesthesia, General
;
Anesthesia, Local
;
Catheters
;
Cicatrix
;
Diagnosis
;
Orbit*
;
Orbital Fractures
;
Silicones
4.Unanticipated risks in morbidly obese patients.
Korean Journal of Anesthesiology 2009;57(4):415-416
No abstract available.
Humans
5.Cytoskeletal Changes in Cortical Dysplasia.
Min Young LEE ; Jae Hun CHUNG ; Young Jong WOO ; Hyoung Ihl KIM ; Min Cheol LEE
Korean Journal of Pathology 2000;34(4):300-309
Cortical dysplasia is a cause of intractable epilepsy and a candidate for surgical resection to control epileptic attacks. The neuronal cytomegaly and balloon cell change are the diagnostic hallmarks of cortical dysplasia. Little research has been performed about the normal-sized dysplastic neuron which has complex arborizing dendrites and lacks in its polarity. The aim of this study was to define the histopathologic characteristics of the neurons in cortical dysplasia. Twelve cases of cortical dysplasia who underwent partial lobectomy for intractable seizures were selected and immunohistochemical staining for NF-M/H, MAP2, tau, and ubiquitin was performed. The perikarya and dendrite of dysplastic neurons were more intensely labeled with antibodies for the high and medium molecular weight neurofilament proteins (NF-M/H) than normal neurons. Immunoreactivity with the MAP2 antibody expressed mainly within the somatodendritic regions was present in the dysplastic or normal neurons without any significant difference in intensity. The complex arborizing dendrites of dysplastic neurons were easily identified due to pronounced immunoreactivity within the somatodendritic regions. Immunoreactivity with the primary antibody against tau and ubiquitin was present in the normal-looking neurons as well as the dysplastic neurons. This study suggests that the dysplastic neurons in cortical dysplasia are accompanied by changes of cytoskeletal neurofilaments, and the immunohistochemical stains for NF-M/H, MAP2, tau, and ubiquigin are useful to detect them.
Antibodies
;
Coloring Agents
;
Dendrites
;
Epilepsy
;
Malformations of Cortical Development*
;
Molecular Weight
;
Neurofilament Proteins
;
Neurons
;
Seizures
;
Ubiquitin
6.A Case of Atypical Hemolytic Uremic Syndrome Associated with Invasive Streptococcus pneumoniae Infection.
Won Hye SHIN ; Cheol Woo KO ; Ja Hoon KOO ; Sung Kwang CHUNG
Journal of the Korean Society of Pediatric Nephrology 1999;3(1):104-108
The recently proposed Bethesda system for cervical/vaginal cytology has made a standardization related to "atypia". In cellular changes due to inflammation or repair, the word "benign cellular change" has been suggested as a substitute for atypia. Terminology related to atypical cells may become standardized, but the cytologic criteria has not been well defined yet. We evaluated 160 cases of atypical squamous cells of undetermined significance(ASCUS) by the Bethesda System(TBS). Among 30,428 cases screened, a cytologic diagnosis of ASCUS was made in 498 cases(1.6%) and 160 cases were histologically verified. ASCUS was diagnosed based on nuclear enlargement and nonclassical signs of condyloma. The results are as follows: One hundred and twenty three cases(76.9%) revealed chronic cervicitis. Thirty seven cases(23.1%) demonstrated squamous intraepithelial lesion. Among intraepithelial lesions, condyloma and mild dysplasia were 28 cases(75.7%). Moderate and severe dysplasia were 5 cases(13.5%) and 4 cases(10.8%), respectively. It is concluded that patients with ASCUS should be colposcopically examined.
Breast
;
Diagnosis
;
Hemolytic-Uremic Syndrome*
;
Humans
;
Inflammation
;
Pneumococcal Infections*
;
Streptococcus pneumoniae*
;
Streptococcus*
;
Uterine Cervicitis
7.Radiological Features of Viral Infection of Lower Respiratory Tract in Infants and Children' Infection by Common Viruse Other than RS Virus.
Hoan Jong LEE ; Woo Sun KIM ; Man Chung HAN ; In One KIM ; Kyung Mo YEON ; In Cheol JO
Journal of the Korean Radiological Society 1994;31(5):973-978
PURPOSE: There have been repoty on radiological features of lower respiratory track infection in infants and children caused by RSV(respiratory syncytial virus) in KOREA. The aims of this study were to summarize radiological features of lower respiratory tract infection caused by common viral agents other than RSV and to find any specific radiological features which might provide clue to the etiologic diagnosis. MATERIALS AND METHODS: We retrospectively analyzed radiological features in 51 children with symptoms of lower respiratory tract infection and identification of viral agents(except RSV). They included parainfluenza (n=22), adenovirus(n=16), influenza A(n--11), influenza B(n=2) virus infections. The mean age of the patients was 23 months. RESULTS: Major radiological findings of viral lower respiratory tract infection were bilateral parahilar peribronchial infiltration(62%), bilateral overaeration(60%), atelectasis(59%)(segmental or subsegmental atelectasis(43%), Iobar atelectasis(16%)) and patchy or confluent consolidation(20%). Pleural effusion was seen in only one case and hilar adenopathy was not observed in any of them. In the cares of adeno virus, consolidation was seen in 5 cases(31%) including 3 cases919%) of extensive confluent consolidations and overaerations were less frequent findings(44%) than in other viruses. In 24 patients with radiological follow up for more than 1 week, consolidation improved most rapidly, while was persistent atelectasis. CONCLUSION: The major radiologic features in vital lower respiratory tract infection(except RSV) were overinflation, bilateral peribronchial infiltration and atelectasis. In adenoviral infection, confluent consolidations which are usually seen in bacterial pneumonia were more common findings than in other viral lower respiratory tract infections.
Child
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Infant*
;
Influenza, Human
;
Korea
;
Paramyxoviridae Infections
;
Pleural Effusion
;
Pneumonia, Bacterial
;
Pulmonary Atelectasis
;
Respiratory System*
;
Respiratory Tract Infections
;
Retrospective Studies
8.What is your strategy for fluid management?.
Korean Journal of Anesthesiology 2012;62(4):307-308
No abstract available.
9.Congenital Anomaly of Urinary Tract in Children.
Won Hye SHIN ; Cheol Woo KO ; Ja Hoon KOO ; Sung Kwang CHUNG
Journal of the Korean Society of Pediatric Nephrology 1999;3(1):88-94
Giant cell tumor (GCT) occurs very unusually in the rib (less than 1% of GCT). We present the cytologic features of GCT of the rib. It showed multiple cellular clusters composed of characteristic, benign looking osteoclast-like multinucleated giant cells and fibroblast-like mononuclear cells. The multinucleated giant cells contained numerous nuclei (average, 30 to 40 per cell, which were closely packed. The nuclei in giant cells were remarkably uniform and round to oval. The mononuclear, neoplastic stromal cells were elongated and spindle-shaped, There was no cytologically malignant portion in the tumor.
Child*
;
Giant Cell Tumors
;
Giant Cells
;
Humans
;
Ribs
;
Stromal Cells
;
Urinary Tract*
10.Analysis of Preoperative Echocardiography in 381 Geriatric Patients.
Young Cheol WOO ; Dong Choon HA
Korean Journal of Anesthesiology 2000;39(4):542-547
BACKGROUND: In geriatric patients, cardiovascular disease is common and a main cause of perioperative morbidity and mortality. Therefore preoperative evaluation of cardiac function is important. The purpose of this study is to evaluate preoperative echocardiography in geriatric patients for understanding aging heart changes and proper selection of patients. METHODS: In the 381 geriatric patients, authors evaluated chamber size, wall thickness, wall motion, valve abnormalities and ejection fraction. In addition, in patients who had left ventricular dysfunction (ejection fraction < OR = 55%), authors evaluated past medical histories and electrocardiographic (ECG) findings. RESULTS: Left atrial enlargement was present in 16%, left ventricular enlargement in 3%, right ventricular enlargement in 6%, ascending aorta dilatation in 13% and left ventricular hypertrophy (LVH) in 28%. Aortic regurgitation (AR) was present in 44%, mitral regurgitation (MR) in 42%, aortic valve calcification in 21% and hypokinesia of the left ventricular wall in 4%. Left ventricular dysfunction was present in 18 patients and their past medical histories showed hypertension in 39%, myocardial ischemia in 33%, congestive heart failure in 28% and diabetus mellitus in 28%. Also their ECG findings showed LVH in 45%, atrial fibrillation in 30% and ventricular premature contraction in 15%. Among the 18 patients with left ventricular dysfunction, 16 patients (89%) had dyspnea or heart disease histories such as myocardial ischemia, myocardial infarction, congestive heart failure, premature ventricular contraction and atrial fibrillation. CONCLUSIONS: 16% of the patients showed a normal echocardiograpy. Abnormal findings of the echocardiography were, in order of frequency, AR (44%), MR (42%) and LVH (28%). Dyspnea or cardiac disease histories were present in 89% of the left ventricular dysfunction patients.
Aging
;
Aorta
;
Aortic Valve
;
Aortic Valve Insufficiency
;
Atrial Fibrillation
;
Cardiovascular Diseases
;
Dilatation
;
Dyspnea
;
Echocardiography*
;
Electrocardiography
;
Heart
;
Heart Diseases
;
Heart Failure
;
Humans
;
Hypertension
;
Hypertrophy, Left Ventricular
;
Hypokinesia
;
Mitral Valve Insufficiency
;
Mortality
;
Myocardial Infarction
;
Myocardial Ischemia
;
Ventricular Dysfunction, Left
;
Ventricular Premature Complexes