1.The clinical application of fetal echocardiography ; The usefulness of four-chamber view as a screening test.
Yong Won PARK ; Jae Sung CHO ; Kyung Joo HWANG ; Jong Kyun LEE ; Jun Hee SUL ; Chan Ho SONG
Korean Journal of Obstetrics and Gynecology 1993;36(10):3558-3564
No abstract available.
Echocardiography*
;
Mass Screening*
2.Lymphangitic Carcinomatosis of the Lung: Serial Changes on High-Resolution CT.
Jae Woong HWANG ; Yookyung KIM ; Jung Hwa HWANG ; Tae Sung KIM ; Duk Woo RO ; Kyung Soo LEE
Journal of the Korean Radiological Society 1997;37(6):1051-1057
PURPOSE: To present initial and follow-up HRCT findings of lymphangitic carcinomatosis of the lung. MATERIALS AND METHODS: Both initial and follow-up HRCT scans were obtained in 18 patients with lymphangitic carcinomatosis of the lung. After dividing the patients into two groups (with anticancer chemotherapy (n=12) and without chemotherapy (n=6), changes of pulmonary parenchymal abnormalities (percentile increase or decrease in the extent of each pattern) were assessed and compared on initial and follow-up HRCTs. RESULTS: Findings on initial CT were interlobular septal thickening (n=18) (smooth in 15 and mixed smooth and nodular in three), thickening of bronchovascular bundles (n=17), areas of ground-glass opacity (n=15), polygonal lines (n=15), and nodules (n=10). With chemotherapy, the finding of polygonal lines decreased by 20/3%, while findings of ground-glass opacity, bronchovascular bundle thickening, septal thickening, and nodules remained stable. Without chemotherapy, all CT patterns of abnormalities except nodules increased by 45-88%. In three patients who did not undergo chemotherapy, smooth interlobular septal thickening changed to nodular thickening. CONCLUSION: Lymphangitic carcinomatosis of the lung manifests initially as smooth thickening of the interlobular septae, bronchovascular bundle thickening,areas of ground-glass opacity, and polygonal lines, as seen on HRCT. Without chemotherapy, the extent of CT findings increases and there is a tendency for smooth septal thickening to change to nodular thickening. Chemotherapy induces improvement or cessation of the progression of CT findings.
Carcinoma*
;
Drug Therapy
;
Follow-Up Studies
;
Humans
;
Lung*
3.Effect of pulsed electromagnetic field stimulation on the early bone consolidation after distraction osteogenesis in rabbit mandible model
Kyung Kyun HWANG ; Tae Hyung CHO ; Yun Mi SONG ; Do Kyun KIM ; Sung Hee HAN ; In Sook KIM ; Soon Jung HWANG
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2007;29(2):123-131
4.Remaining Loose Bodies after Arthroscopic Surgery Including Extensive Capsulectomy for Synovial Chondromatosis of the Hip.
Young Kyun LEE ; Kyung Ho MOON ; Jin Woo KIM ; Ji Sup HWANG ; Yong Chan HA ; Kyung Hoi KOO
Clinics in Orthopedic Surgery 2018;10(4):393-397
BACKGROUND: The purpose of our study was to evaluate the usefulness of hip arthroscopy including extensive capsulectomy for synovial chondromatosis of the hip. METHODS: From 2008 to 2016, 13 patients with synovial chondromatosis of the hip were treated with arthroscopic removal of loose bodies and synovectomy using three arthroscopic portals. An extensive capsulectomy was performed to allow the remaining loose bodies to be out of the extracapsular space, and the excised capsule was not repaired. All patients were assessed by clinical scores and the radiographs were reviewed to determine whether the remaining loose bodies disappeared at the last follow-up. RESULTS: Eight men and two women were followed up for a minimum of 1 year (mean, 3.8 years; range, 1 to 6.8 years) after hip arthroscopy. Clinical outcomes such as modified Harris hip score, University of California Los Angeles score, and Western Ontario and McMaster Universities Osteoarthritis Index score improved at the last follow-up. Although seven hips had remaining loose bodies after arthroscopic surgery, the remaining loose bodies disappeared in five hips (71.4%) at the last follow-up. CONCLUSIONS: Arthroscopic surgery was useful to treat synovial chondromatosis of the hip. In spite of limited removal of loose bodies, arthroscopic procedures including extensive capsulectomy could be effective for the treatment of synovial chondromatosis of the hip.
Arthroscopy*
;
California
;
Chondromatosis, Synovial*
;
Female
;
Follow-Up Studies
;
Hip*
;
Humans
;
Male
;
Ontario
;
Osteoarthritis
5.Anesthetic Management of Cerebral Subarachnoid Hemorrhage with Intraoperative Electrocardiographic Change Simulating Acute Myocardial Infarction: A case report.
Il Woo SHIN ; Ju Tae SHN ; Kyung Il HWANG ; Woo Chang YANG ; Heon Keun LEE ; Young Kyun CHUNG
Korean Journal of Anesthesiology 1999;36(5):901-905
It is now well established that acute subarachnoid hemorrhage secondary to rupture of a cerebral aneurysm can precipitate life-threatening cardiac arrhythmia. We experienced a 60 year old patient with a subarachnoid hemorrhage (neurologic grade III) due to rupture of anterior communicating artery aneurysm who presented with such intraoperative electrocardiographic changes as ST segment elevation and T wave inversion which are hallmark of acute myocardial infarction. The operation was uneventfully ended. On the postoperative laboratory examination about suspected acute myocardial infarction, the patient was found to have normal triple enzyme study and echocardiographic finding. The electrocardiogram three days after subarachnoid hemorrhage due to cerebral aneurysm returned to normal sinus rhythm. This case suggests that this patient's electrocardiographic change simulating acute myocardial infarction is transient change due to subarachnoid hemorrhage.
Arrhythmias, Cardiac
;
Echocardiography
;
Electrocardiography*
;
Humans
;
Intracranial Aneurysm
;
Middle Aged
;
Myocardial Infarction*
;
Rupture
;
Subarachnoid Hemorrhage*
6.Induction with Intravenous 0.3 mg/kg Etomidate Maintains Venous Capacitance of Normovolemic Rat.
Ju Tae SHN ; Kyung Il HWANG ; Woo Chang YANG ; Heon Keun LEE ; Young Kyun CHUNG
Korean Journal of Anesthesiology 1999;36(2):298-304
BACKGROUND: Etomidate is short-acting non-barbiturate intravenous anesthetic with minimal cardiovascular depression. As a small change in venous capacitance significantly alters venous return and thus cardiac output, it is important to know the effects of intravenous anesthetics on venous capacitance. The purpose of this study was to examine the effect of etomidate or pentobarbital (control agent) on venous capacitance. METHOD: All twenty rats (etomidate group: 10, pentobarbital group: 10), weighing 350-450 gram, were anesthetized with pentobarbital 50 mg/kg given intraperitoneally for surgical preparation. Mean arterial pressure (MAP), heart rate (HR), and mean circulatory filling pressure (MCFP) were measured in the awake state(recovered from pentobarbital anesthesia for surgical preparation) as well as during anesthesia with etomidate or pentobarbital. Venous capacitance was assessed before and during anesthesia with etomidate or pentobarbital by measuring MCFP. MCFP was measured during a brief period of circulatory arrest produced by inflating a balloon inserted in right atrium. RESULTS: As compared with MCFP in the corresponding awake state, MCFP was not significantly altered by etomidate but significantly decreased by pentobarbital. As compared with MAP in the corresponding awake state, MAP was not significantly altered by etomidate but significantly decreased by pentobarbital. CONCLUSION: The results suggest that unaltered venous capacitance by etomidate may contribute to a maintained MAP but increased venous capacitance by pentobarbital decrease in MAP of the normovolemic rat.
Anesthesia
;
Anesthetics, Intravenous
;
Animals
;
Arterial Pressure
;
Cardiac Output
;
Depression
;
Etomidate*
;
Heart Atria
;
Heart Rate
;
Pentobarbital
;
Rats*
7.Gliomatosis CerebriClinical Features and Prognostic Factors of Long-term Survival.
Ho Jun SEOL ; Hee Won JUNG ; Dong Gyu KIM ; Sung Kyun HWANG ; Hee Jin YANG ; Min Kyung KIM
Journal of Korean Neurosurgical Society 2002;32(2):125-130
INTRODUCTION: The authors present a retrospective analysis of the clinical features and prognostic factors of long-term survival in gliomatosis cerebri. METHODS: The authors reviewed the clinical features of 27 cases of gliomatosis cerebri treated between August 1988 and January 2001. Age at diagnosis ranged from 19 to 62(median 41) years and the male to female ratio was 18:9. Most cases presented as a headache or seizure and the mean duration of symptoms was 9.6 months. An ill defined, diffuse high signal intensity lesion extending two lobes or more, without a central necrotic center in T2-weighted magnetic resonance(MR) imaging was characteristic. All patients underwent histological confirmation by craniotomy(12 cases), stereotactic biopsy(14 cases) and stereotactic biopsy followed by craniotomy(1 case). External beam radiation therapy was administered in every case except two, one of which expired within a month of surgery and the other refused treatment. RESULTS: Mean survival time after diagnosis was 41.1 months. By univariate analysis, the symptom duration(lower than 12 months) and the Karnofsky performance scale at discharge(lower than 70), focal enhancement on preoperative MR imaging, postoperative increased intracranial pressure sign, pathologic grade(high grade) and p53(>5%) were correlated with the length of survival(p-values were 0.07, 0.00, 0.007, 0.001, 0.04, and 0.02 respectively). CONCLUSION: We suggest that:1) gliomatosis cerebri can be diagnosed by a combination of MR imaging and histopathological examination:2) confusion with extensive glioma is possible due to vague diagnostic criteria, and so survival might be better than expected had discrete diagnosis been made. 3) Initial active management for increased ICP and further radiation therapy might be an important therapy.
Biopsy
;
Diagnosis
;
Female
;
Glioma
;
Headache
;
Humans
;
Intracranial Pressure
;
Magnetic Resonance Imaging
;
Male
;
Neoplasms, Neuroepithelial
;
Retrospective Studies
;
Seizures
;
Survival Rate
8.Correlation Between the Prevalence of Superantigenic Toxin Genes and Coagulase Serotypes of Staphylococcus aureus Isolates.
Yeo Gyeong KIM ; Han Sol LEE ; Seong Kyun KANG ; Kyung Soo CHANG ; Soo Myung HWANG
Journal of Bacteriology and Virology 2011;41(3):157-164
A heterogenic group of staphylococcal exotoxins, including staphylococcal superantigenic toxins, enterotoxin (SE), toxic shock syndrome toxin-1 (TSST-1), and coagulase are the most important virulence factors of Staphylococcus aureus. We analyzed the prevalence of genes encoding five enterotoxins and TSST-1 in S. aureus isolated from clinical ear discharges. The genes were identified by multiplex PCR and we compared the results to references of coagulase serotypes. In 102 isolates of S. aureus, 44 of them were methicillin-resistant S. aureus (MRSA) and the others were methicillin-susceptible S. aureus (MSSA). Among both types of S. aureus, 33 strains were positive for sea, 2 for seb, 23 for sec, 26 for see, and 26 for tst. Overall, 59 (57.8%) isolates were positive for one or more superantigenic toxin genes. From these, 71.2% (42/59) strains harbored more than one toxin gene in different combinations. The major combinations of genes were sea and see, and sec and tst. The degree of possession of superantigenic toxic genes was similar in both MRSA and MSSA isolates (56.8% vs 58.6%, respectively), yet significant differences in toxin gene profiles and coagulase serotypes between two isolates were detected. All of 13 positive strains for sec and tst were MRSA and belonged to coagulase serotype II. On the other hand, 80.0% of 20 positive strains for sea and see were MSSA with coagulase serotype IV and VII, whereas 20.0% of them were MRSA with coagulase serotype IV. This data indicates that the profile of superantigenic toxin genes correlates to coagulase serotype and methicillin resistance in S. aureus isolates.
Bacterial Toxins
;
Coagulase
;
Ear
;
Enterotoxins
;
Exotoxins
;
Hand
;
Methicillin Resistance
;
Methicillin-Resistant Staphylococcus aureus
;
Multiplex Polymerase Chain Reaction
;
Prevalence
;
Shock, Septic
;
Staphylococcus
;
Staphylococcus aureus
;
Superantigens
;
Virulence Factors
9.Muscular Injury of Iliacus and Gluteus Maximus after Mountain Climbing.
Ho Seung JEON ; Young Kyun WOO ; Suk Ha HWANG ; Seung Pyo SUH ; Joon Kyung LEE
The Korean Journal of Sports Medicine 2014;32(1):65-67
Iliacus muscle is the strongest hip flexor of gluteal region that acts with psoas muscle, whereas gluteus maximus muscle is the largest muscle engaged in extension and external rotation of the hip. Mountaineering requires strong contractile force of both flexor and extensor around the hip. A 57-year-old man presented to our hospital with severe pain in left groin after mountaineering for 5 hours without a break. Magnetic resonance imaging revealed incomplete rupture of iliacus muscle and strain of gluteus maximus muscle. Conservative treatment was done. At 3 months of follow-up, he returned to normal life. If we are going to climb mountain, it is important to start warming up with some stretches, take a break while climbing, and use climbing sticks. There have been no report about athletic injury of both iliacus and gluteus maximus after mountaineering. So we report this case with a review of the literature.
Athletic Injuries
;
Buttocks
;
Follow-Up Studies
;
Groin
;
Hip
;
Humans
;
Magnetic Resonance Imaging
;
Middle Aged
;
Mountaineering
;
Psoas Muscles
;
Rupture
10.Antibody Status in Children with Steroid-Sensitive Nephrotic Syndrome.
Ji Whan HAN ; Kyung Yil LEE ; Ja Young HWANG ; Dea Kyun KOH ; Joon Sung LEE
Yonsei Medical Journal 2010;51(2):239-243
PURPOSE: The pathophysiology of hypogammaglobulinemia in nephrotic syndrome (NS) remains unknown. We evaluated the differences in the distribution of anti-bacterial antibodies and anti-viral antibodies, and those of immune antibodies and natural antibodies in steroid-sensitive NS. MATERIALS AND METHODS: We examined the antibody status of 18 children who had routine vaccinations. The levels of immnunoglobulin G (IgG), the IgG subclasses, and the antibodies induced by vaccinations such as diphtheria-pertussis-tetanus and measles-mumpsrubella were analyzed in children with steroid-sensitive NS. RESULTS: There was a positive correlation between the albumin and IgG values (r = 0.6, p < 0.01), and the four IgG subclasses were all evenly depressed in the nephrotic children during the acute stage of the disease. The antibodies induced by bacterial antigens were depressed and the seropositivity of anti-viral antibodies tended to be lower than those of age-matched control children during the acute stage. The depressed immune antibody status recovered rapidly in the remission stage of NS, despite corticosteroid treatment. CONCLUSIONS: IgG levels correlated positively with albumin levels, and all antibodies, including immune and natural antibodies, were depressed in the acute stage of NS. Our results suggest that hypogammaglobulinaemia in NS may be associated with intravascular homeostasis of oncotic pressure.
Adolescent
;
Antibodies, Bacterial/immunology
;
Antibodies, Viral/immunology
;
Case-Control Studies
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Immunoglobulin G/immunology
;
Male
;
Nephrotic Syndrome/*drug therapy/*immunology
;
Steroids/*therapeutic use