1.Postoperative renal failure.
Yeon Keun HWANG ; Hyun Muk LIM
Journal of the Korean Surgical Society 1991;40(2):243-249
No abstract available.
Renal Insufficiency*
2.Epidemiology and Clinical Characteristics of Enterovirus Infections in Children: A Single Center Analysis from 2006 to 2010.
In Soo PARK ; Hae Sung LEE ; Soo Han CHOI ; Hye Jin KIM ; Seo Yeon HWANG ; Doo Sung CHEON ; Jin Keun CHANG
Korean Journal of Pediatric Infectious Diseases 2013;20(2):81-88
PURPOSE: This study was performed to investigate the epidemiology of enterovirus (EV) infections in children at a secondary hospital during recent 5 years. METHODS: We collected the cerebrospinal fluid, stool and throat swab samples from the pediatric patients with suspected EV infections in KEPCO Medical Center, Seoul, Korea from July 2006 to September 2010. EV detection and genotype identification were performed by RT-PCR at Korea Centers for Disease Control and Prevention. RESULTS: A total of 386 samples were collected from 277 patients during study period. Ninety-eight patients (35.4%) were diagnosed with EV infections. The RT-PCR positive rate was the highest in throat swab samples (48.3%). The median age of patient was 4.7 years (range, 0.1-12.5 years). Aseptic meningitis (50, 51.0%) was the most common clinical manifestation; herpangina (22, 22.4%) and hand-foot-mouth disease (18, 18.4%). One hundred EVs were isolated from 98 patients and 20 genotypes of EV were identified; Echovirus 30 (28 cases, 28%), Enterovirus 71 (12 cases, 12%), Echovirus 25 (10 cases, 10%), Echovirus 9 (9 cases, 9%) and Coxsackievirus A6 (8 cases, 8%). Aseptic meningitis caused by Echovirus 30 was the most common manifestation in 2008. There was no complicated case caused by Enterovirus 71. CONCLUSION: This study showed the epidemiology of confirmed EV infection in children from 2006 to 2010. There is a need for continuous surveillance of EV infections and its clinical manifestations.
Centers for Disease Control and Prevention (U.S.)
;
Child
;
Echovirus 9
;
Enterovirus
;
Enterovirus B, Human
;
Enterovirus Infections
;
Genotype
;
Herpangina
;
Humans
;
Korea
;
Meningitis, Aseptic
;
Pharynx
3.The Relationship between Cerebral Reperfusion Flow and the Ischemic Histopathologic Damage after Incomplete Forebrain Ischemia in Rat Model.
Tae Sik HWANG ; Jeong Pill SEO ; Keun Jeong SONG ; Yeon Kwon JEONG ; Back Hyo SHIN ; Seung Ho KIM
Journal of the Korean Society of Emergency Medicine 1999;10(2):175-182
BACKGROUND: Experimental data indicate that low-flow reperfusion following prolonged cardiocirculatory arrest may aggravate early cerebral microcirculatory repefusion disorders. We investigated the influence of cerebral repefusion flow change to the ischemic histopathologic damage of brain tissue after incomplete forebrain ischemia in rats. MATERIALS AND METHOD: Anesthetized Sprague-Dawley rats were undergone ligation of both infernal carotid artery by microvascular clamp for 10 minutes. After release of the clamp, reperfusion was started with several different flow levels (0, 10, 20, 30, 50, and 100%) of infernal carotid artery comparing to pre-clamping phase using flowmeter. After 15minutes of reperfusion, rat brains were prepared by perfusion-fixation with 3% formaldehyde. Under light microscopic examination of Hematoxylin-Eosin stained tissue slide, histopathologic damage was examined at cortex, putamen, and hippocampus regions. Categorical hisotopathologic damage scores were derived in each regions by manual counts of ischemic neurons. RESULT: The histopathologic damage scores were 0, 10. 2+/-0.5, 7.6+/-1.5, 5.9+/-1.4, 5.0+/- 2.8, 3.5+/-0.7, and 1.0+/-0.0 in control, 0, 10, 20, 30, 50, and 100% reperfusion groups, respectively(p<0.05). CONCLUSION: Our insults showed significant increment of brain histopathologic damage scores along with decreasing amount of cerebral reperfusion know after incomplete forebrain ischemia. We believe restoration of repefusion flow to pre-ischemic level would be a critical component in attenuation of brain ischemic damage.
Animals
;
Brain
;
Carotid Arteries
;
Flowmeters
;
Formaldehyde
;
Hippocampus
;
Ischemia*
;
Ligation
;
Models, Animal*
;
Neurons
;
Prosencephalon*
;
Putamen
;
Rats*
;
Rats, Sprague-Dawley
;
Reperfusion*
4.A Case of Cerebral Malaria.
Woo Ik CHANG ; Il Nam SUNWOO ; Yeon Mi HWANG ; Ki Hwan KIM ; Deuk Young MIN ; Ho Keun KIM
Journal of the Korean Neurological Association 1984;2(2):203-207
Presented a 39 year old man of cerebral malaria and pertinent literature were reviewed briefly. The patient was admitted because of fever and drowsy mental state. On admission, there were mild icteric sclerae and hepatomegaly. Brain C-T scan was normal. The cerebrospinal fluid study showed increased pressure (280 mmH20), and protein content (150 mg/dl) with mild pleocytosis. The EEG revealed diffuse delta waves throughout the head. At the 3rd hospital day, the patient was rapidly deteriorated to comatous state showing marked hyperbilirubinemia, thrombocytopenia and bleeding tendency and expired. Numerous plasmodium falciparum parasites were revealed in the peripheral blood smear.
Adult
;
Brain
;
Cerebrospinal Fluid
;
Electroencephalography
;
Fever
;
Head
;
Hemorrhage
;
Hepatomegaly
;
Humans
;
Hyperbilirubinemia
;
Leukocytosis
;
Malaria, Cerebral*
;
Parasites
;
Plasmodium falciparum
;
Sclera
;
Thrombocytopenia
5.A Case of Organoid Nevus on the Knee.
Jai Kyoung KOH ; Soyoung JUNG ; Sunghwan HWANG ; Jung Eun SEOL ; Hyojin KIM ; Hosuk SUNG ; Yeon Mee KIM ; Seongho YOON ; Jong Keun SEO
Korean Journal of Dermatology 2014;52(4):283-284
No abstract available.
Knee*
;
Nevus*
;
Organoids*
6.Down Syndrome with Transient Myeloproliferative Disorder, Hepatic Fibrosis, and Hemochromatosis.
Jie Yeon LEE ; Hwi Kyu IM ; Hwang Min KIM ; Baek Keun LIM ; Young UH ; Chan Il PARK
Journal of the Korean Society of Neonatology 2003;10(1):83-87
Transient myeloproliferative disorder (TMD), which may mimic acute leukemia, occurs in neonates with Down syndrome along with hepatic fibrosis. TMD is recognized shortly after birth or in the neonatal period and is characterized by leukocytosis and thrombocytopenia, which resolve spontaneously in four to six weeks. And hepatic fibrosis is characterized by diffuse intralobular sinusoidal fibrosis, extramedullary hematopoiesis and hemochromatosis. A newborn male infant with Down syndrome, atrial septal defect and ventricular septal defect is reported. He showed abnormal myelopoiesis accompanying characteristic hepatic sinusoidal fibrosis. Knowing the cellular mechanism of hepatic fibrosis and its modulation by growth factors, a pathogenetic link between transient myeloproliferative disorder and the development of liver fibrosis in Down syndrome neonates, association of this triad no longer appears to be accidental.
Down Syndrome*
;
Fibrosis*
;
Heart Septal Defects, Atrial
;
Heart Septal Defects, Ventricular
;
Hematopoiesis, Extramedullary
;
Hemochromatosis*
;
Humans
;
Infant
;
Infant, Newborn
;
Intercellular Signaling Peptides and Proteins
;
Leukemia
;
Leukocytosis
;
Liver Cirrhosis
;
Male
;
Myelopoiesis
;
Myeloproliferative Disorders*
;
Parturition
;
Thrombocytopenia
7.Gender Difference on Corpus Callosum in Korean Adults.
Im Joo RHYU ; Ji Yeon RYU ; Kun Woo PARK ; Dae Hie LEE ; Keun Young PARK ; Kyung Han PARK ; Seung Jun HWANG
Korean Journal of Physical Anthropology 2005;18(3):169-177
Corpus callsoum (CC) is the largest commissural fiber connecting the cerebral hemispheres. The gender difference in the size or the shape of CC is a long standing dispute. Some reported that adult female CC had more bulbous splenium and larger area considering brain size, but others failed to replicate this findings. There is no definite consensus on sexual dimorphism of CC yet, although extensive studies on sexual dimorphism has been expected to provide a clue to explain sociopsychological differences between male and female. This variable results are attributed to limited number of subjects, measured parameters, and method of measurement. We have employed comprehensive analytic parameters with large subjects to understand gender differences on CC of healthy Korean adults. We have analyzed the magnetic resonance image (MRI) in adults free from neurological disorders. The subjects were composed of 108 young people (3rd decade; male : 51, female : 57). Total area, its 5 sub-areas, linear parameters including height, length, and width and five specific angles of the CC were measured on the midsagittal MR images with NIH Image program (R) (Ver 1.6). The gender differences were observed in the area of splenium and length in the group. The male CC have larger splenium and longer length than female. The angle between neural axis and base of corpus callosum in female was significantly larger than that of male. This study reports not only gender difference of adult CC, but Korean adult standard morphometric data of CC research. These results might serve a useful basic data for various research in the fields of neuroanatomy, neuroradiology, and neuropsychiatry.
Adult*
;
Axis, Cervical Vertebra
;
Brain
;
Cerebrum
;
Consensus
;
Corpus Callosum*
;
Dissent and Disputes
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Nervous System Diseases
;
Neuroanatomy
;
Neuropsychiatry
8.MR Imaging with Fluid Attenuated Inve rsion Recovery Sequence of Childhood Adrenoleukodystrophy: Comparisonwith T2 Weighted Spin Echo Imaging.
Asiry HWANG ; Jeong Jin SEO ; Gwang Woo JEONG ; Tae Woong CHUNG ; Yong Yeon JEONG ; Heoung Keun KANG ; Hoon KOOK ; Young Jong WOO ; Tai Joo HWANG
Journal of the Korean Radiological Society 1999;40(3):591-596
PURPOSE: The purpose of this study was to evaluate the usefulness of FLAIR(Fluid Attenuated InversionRecovery) MR imaging in childhood adrenoleukodystrophy by comparing with those of T2-weighted FSE imaging, and tocorrelate MRI finidings with clinical manifestations. MATERIALS AND METHODS: Axial FLAIR images(TR/TE/TI=10004/123/2200) and T2-weighted FSE images(TR/TE=4000/104) of brain in six male patients(age range :6-17 years, mean age : 10.2 years) with biochemically confirmed adrenoleukodystrophy were compared visually by tworadiologists for detection, conspicuity, and the extent of lesion. Quantitatively, we compared lesion/CSFcontrast, lesion/CSF contrast to noise ratio(CNR), lesion/white matter(WM) contrast, and lesion/WM CNR betweenFLAIR and T2 weighted image. We correlated MR findings with clinical manifestations of neurologic symptoms andevaluated whether MRI could detect white matter lesions in neurologically asymptomatic patients. RESULTS: Visualdetection of lesions was better with FLAIR images in 2 of the 6 cases and it was equal in the remainders. Visualconspicuity and detection of the extent of lesion were superior on FLAIR images than T2-weighted images in all 6cases. In the quantitative assessment of lesions, FLAIR was superior to T2-weighted image for lesion/CSF contrastand lesion/CSF CNR, but was inferior to T2 weighted image for lesion/WM contrast and lesion/WM CNR. In one case,FLAIR images distinguished the portion of encephalomalacic change from lesions. MR findings ofadrenoleukodystrophy were correlated with clinical manifestations in symptomatic 4 cases, and also detected whitematter lesions in asymptomatic 2 cases. CONCLUSION: MR imaging with FLAIR sequence provided images that wereequal or superior to T2-weighted images in the evaluation of childhood adrenoleukodystrophy. MRI findings werewell correlated with clinical manifestations and could detect white matter lesions in neurologically asymptomaticadrenoleukodystrophy patients.
Adrenoleukodystrophy*
;
Brain
;
Humans
;
Magnetic Resonance Imaging*
;
Male
;
Neurologic Manifestations
;
Noise
9.A Case of Herpetic Whitlow.
Seon Wook HWANG ; Soon Kwon HONG ; Kyung Jong CHO ; Jong Keun SEO ; Ji Yeon KIM ; Ho Suk SUNG ; Deborah LEE
Korean Journal of Dermatology 2009;47(1):98-100
Herpetic whitlow is a painful cutaneous infection that occurs on the fingers and toes, and it is caused by herpes simplex virus (HSV)-1 or -2. It is correlated with the immunocompromised state of patients or with occupations that are in frequent contact with the secretions or mucous membranes infected by HSV. We present here a 29-year-old woman who was referred to our department with recurrent vesicles and ulcerative lesion of the right 3rd finger. She was immunocompetent and did not have any occupational hazard of herpetic whitlow. We made the diagnosis of herpetic whitlow by the clinical features and the histopathologic examinations. In addition, we used polymerase chain reaction assay to detect the type of HSV and we confirmed she suffered with herpetic whitlow that was caused by HSV-2.
Adult
;
Female
;
Fingers
;
Herpesvirus 2, Human
;
Humans
;
Methylmethacrylates
;
Mucous Membrane
;
Occupations
;
Polymerase Chain Reaction
;
Polystyrenes
;
Simplexvirus
;
Toes
;
Ulcer
10.The different effects of gonadotropin-releasing hormone agonist therapy on body mass index and growth between normal-weight and overweight girls with central precocious puberty.
Won Jun YANG ; Keun Hyeok KO ; Kon Hee LEE ; Il Tae HWANG ; Yeon Joung OH
Annals of Pediatric Endocrinology & Metabolism 2017;22(1):49-54
PURPOSE: The effects of gonadotropin-releasing hormone agonist (GnRHa) treatment on body mass index (BMI) are controversial in girls with central precocious puberty (CPP). We therefore evaluated auxological parameters during GnRHa therapy in patients with CPP, specifically focusing on changes in BMI. METHODS: Seventy-seven girls with idiopathic CPP who underwent GnRHa therapy were retrospectively recruited. We investigated BMI changes during the treatment period after stratifying them according to baseline BMI status as follows: normal (BMI percentile of <85th) and overweight groups (BMI percentile of ≥85th). RESULTS: The incidence of overweight/obesity (40.3%/23.4%) was very high in the girls with CPP. In the overall study population, no significant BMI change was observed during the GnRHa treatment period. However, when stratified according to baseline BMI status, the normal-weight group showed a significant increase in BMI-standard deviation score (SDS), whereas the overweight group showed no change in BMI-SDS. Baseline BMI-SDS was an independent predictor of changes in BMI during the GnRHa treatment period. Changes in weight-SDS were similar, but changes in height-SDS were significantly greater in the overweight group than in the normal-weight group, which explains the observed difference in BMI-SDS. CONCLUSION: Our results demonstrate that the difference in the pattern of BMI changes among our CPP patients suggests that delayed puberty induced by GnRHa treatment may have different effects on linear growth according to baseline body composition. This study underscores the importance of individualized lifestyle intervention in CPP children.
Body Composition
;
Body Mass Index*
;
Child
;
Female*
;
Gonadotropin-Releasing Hormone*
;
Humans
;
Incidence
;
Life Style
;
Obesity
;
Overweight*
;
Puberty, Delayed
;
Puberty, Precocious*
;
Retrospective Studies