1.Fixed Pupillary Light Reflex due to Peripheral Neuropathy after Liver Transplantation.
Kwan Hyung KIM ; Namo KIM ; Sungwon NA ; Jaewon JANG ; Jeongmin KIM
Korean Journal of Critical Care Medicine 2015;30(3):191-195
A 46-year-old female patient was admitted to the intensive care unit (ICU) after liver transplantation. About an hour later after the ICU admission, she had no pupillary light reflex. Both pupils were also fixed at 5 mm. Patients who undergo liver transplantation are susceptible to neurologic disorders including hepatic encephalopathy, thromboembolism and intracranial hemorrhage. Abnormal pupillary light reflex usually indicates a serious neurologic emergency in these patients; however, benign neurologic disorders such as peripheral autonomic neuropathy or Holmes-Adie syndrome should also be considered. We experienced a case of fixed pupillary light reflex after liver transplantation diagnosed as peripheral autonomic neuropathy.
Adie Syndrome
;
Emergencies
;
Female
;
Hepatic Encephalopathy
;
Humans
;
Intensive Care Units
;
Intracranial Hemorrhages
;
Liver Transplantation*
;
Liver*
;
Middle Aged
;
Nervous System Diseases
;
Peripheral Nervous System Diseases*
;
Pupil
;
Reflex*
;
Reflex, Pupillary
;
Thromboembolism
2.Production of monoclona antibody to infectious bursal disease virus as a diagnostic methods.
Hyung Kwan JANG ; Jai Hong KIM ; Chang Seon SONG ; Soon Jae KIM ; Tae Jong KIM
Journal of the Korean Society of Virology 1993;23(2):171-182
No abstract available.
Infectious bursal disease virus*
3.A Study on Systolic Time Intervals during Second, Third Trimesters and Postpartum Period.
Kyoung Sig JANG ; Bynng Hyun SEONG ; Hak Yeon BAE ; Jae Sun MUN ; Min Hyung LEE ; Hyun Kwan OH
Korean Circulation Journal 1981;11(2):93-99
Systolic time interval measurements were made sequentially during second, third trimesters and postpartum period. Recordings were made in the supine position after bed rest for at least five minutes in order to obtain a steady state. In second trimester, pre-ejection period index (PEPI) was significantly shortened and left ventricular ejection period index(LVETI) remained normal while PEP/LVET decreased. Four possible mechanisms may be involved to account for the alterations in hemodynamic changes during this period(late stage of second trimester) : (1) increased metabolic demands of pregnancy: (2) hemodynamic effects of hypervolemia: (3) circulatory adjustments secondary to an arteriovenous shunt-like effect of the placental circulation: (4) cardiovascular effect of steroid hormone. The third trimester was characterized-by a markedly shortened LVETI, a prolonged PEPI and PEP/LVET. This findings are consistent with impaired left ventricular performance and are probably due to decreased left ventricular preload resulting from diminished venous return secondary to inferior vena caval obstruction by the large gravid uterus. In the postpartum period, the PEPI and PEP/LVET remained elevated and the LVETI shortened in the supine position. It is concluded that alterations in systolic time intervals occur normally during the course of uncomplicated pregnancy and persist into the postpartum period.
Bed Rest
;
Female
;
Hemodynamics
;
Humans
;
Placental Circulation
;
Postpartum Period*
;
Pregnancy
;
Pregnancy Trimester, Second
;
Pregnancy Trimester, Third*
;
Supine Position
;
Systole*
;
Uterus
4.Peripheral Vascular Disease in Patients with Significant Coronary Artery Disease.
Dong Hun CHOI ; Jong Won HA ; Won Heum SHIM ; Moon Hyung LEE ; June KWAN ; Si Hoon PARK ; Yang Soo JANG
Korean Circulation Journal 1995;25(2):477-482
BACKGROUND: Although it is known that patients wth peripheral vascular disease are at high risk for coronary arterial disease, however, it has not been determined that patients with coronary artery disease(CAD) correlates with peripheral vascular disease(PVD). This study was designed to determine the prevalence and clinical characteristics of peripheral vascular disease(PVD) in patients with coronary artery disease(CAD). METHODS: A total of one hundred seventy-eight patients with CAD confirmed by coronary angiogram(145 male, age 58.5+/-10.1) were included in this study from February 1992 to May 1994. Coronary and peripheral angiograms were performed in all patients and the patients were divided into two groups; patients with PVD dand patients without PVD. Clinical characteristics were compared between two groups. RESULTS: Peripheral vascular disease was present in 49 patients(27.5%) among 178 CAD patients. The mean age of patients with PVD was significantly older than that of patients without PVD. The hypertension was statistically significant difference between two groups(P<0.05). There were no major differences in the number of risk factors or number of stenotic coronary arteries in patients with and without PVD. CONCLUSION: The prevalence of PVD in patients with CAD was high and it is reasonable to state that most common risk factors for coronary and peripheral atherosclerosis were age, hypertension and obesity.
Atherosclerosis
;
Coronary Artery Disease*
;
Coronary Vessels*
;
Humans
;
Hypertension
;
Male
;
Obesity
;
Peripheral Vascular Diseases*
;
Prevalence
;
Risk Factors
5.Deferoxamine Pretreatment Reduces Infarct Size of Acute Myocardial Infarction in a Rabbit Model.
Kwan Mo YANG ; Dong Rul OH ; Seung Hyun PARK ; Kyu Nam PARK ; Won Jae LEE ; Hyung Kook KIM ; Du Young HWANG ; Seung Pil CHOI ; Jang Seong CHAE
Journal of the Korean Society of Emergency Medicine 1998;9(4):496-504
BACKGROUND: Reperfusion of ischemic myocardium has been postulated to result in a specific oxygen radical mediated tissue injury. Iron may liberate during ischemia and we hypothesized that administration of the iron chelator, deferoxamine during ischemia would result in improved recovery after postischemic reperfusion. PURPOSE: To test whether iron-catalyzed processes contribute to myocardial necrosis during ischemia and reperfusion, deferoxamine was administered to block iron catalyzed hydroxyl radical formation in rabbits. METHODS: Eleven rabbits were divided into two groups: control group (n=5) and deferoxamine pretreatment group (n=6). the left circumflex coronay artery was ligated for 30 minutes and reperfused for 180 minutes. Area at risk (AR) was measured by non-stained area with ethylene blue injection into left atrium after left circumflex coronary artery ligation. Infarct size was measured by weighing after tripheyltetrazolium chloride staining. Heart rate was measured using electrocardiographic recording and systemic blood pressure was monitored by pressure transducer connected to the catheter in the left ventricle. RESULTS: 1. There was no significant difference of heart rate and blood pressure in deferoxamine pretreatment group compared with control group. 2. There was significant decrease of serum iron concentration after continuous infusion of deferoxamine compared with serum iron concentration before ligation of coronary artery (P<0.05). 3. There was no significant difference of area at risk between control and deferoxamine pretreatment group. 4. Area at necrosis to area at risk was significantly reduced in deferoxamine pretreatment group compared with control group (P<0.05) The results suggest that deferoxamine infusion prior to coronary artery occlusion has a significant benefit in reducing infarct size in this model.
Arteries
;
Blood Pressure
;
Catheters
;
Coronary Vessels
;
Deferoxamine*
;
Electrocardiography
;
Heart Atria
;
Heart Rate
;
Heart Ventricles
;
Hydroxyl Radical
;
Iron
;
Ischemia
;
Ligation
;
Myocardial Infarction*
;
Myocardium
;
Necrosis
;
Oxygen
;
Rabbits
;
Reperfusion
;
Transducers, Pressure
6.Clinical Factors for the Development of Posttraumatic Hydrocephalus after Decompressive Craniectomy.
Il CHOI ; Hyung Ki PARK ; Jae Chil CHANG ; Sung Jin CHO ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 2008;43(5):227-231
OBJECTIVE: Earlier reports have revealed that the incidence of posttraumatic hydrocephalus (PTH) is higher among patients who underwent decompressive craniectomy (DC). The aim of this study was to determine the influencing factors for the development of PTH after DC. METHODS: A total of 693 head trauma patients admitted in our hospital between March 2004 and May 2007 were reviewed. Among thee, we analyzed 55 patients with severe traumatic brain injury who underwent DC. We excluded patients who had confounding variables. The 33 patients were finally enrolled in the study and data were collected retrospectively for these patients. The patients were divided into two groups: nonhydrocephalus group (Group I) and hydrocephalus group (Group II). Related factors assessed were individual Glasgow Coma Score (GCS), age, sex, radiological findings, type of operation, re-operation and outcome. RESULTS: Of the 693 patients with head trauma, 28 (4.0%) developed PTH. Fifty-five patients underwent DC and 13 (23.6%) developed PTH. Eleven of the 33 study patients (30.3%) who had no confounding factors were diagnosed with PTH. Significant differences in the type of craniectomy and re-operation were found between Group I and II. CONCLUSION: It is suggested that the size of DC and repeated operation may promote posttraumatic hydrocephalus in severe head trauma patients who underwent DC.
Brain Injuries
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Coma
;
Confounding Factors (Epidemiology)
;
Craniocerebral Trauma
;
Craniotomy
;
Decompressive Craniectomy
;
Humans
;
Hydrocephalus
;
Incidence
;
Retrospective Studies
7.A Case of Extradural Meningeal Sarcoma.
In Chang LEE ; Seong Hyung KIM ; Soon Kwan CHOI ; Bark Jang BYUN ; In Soo LEE
Journal of Korean Neurosurgical Society 1986;15(1):197-202
Meningeal sarcoma is rare and its clinical course tends to be short. It is a malignant neoplasm arising from connective tissue elements present in meninges. We have experienced a case of 4 years old female patient with headache, palpable mass on left parieto-occipital area. The operation revealed entirely extradurally located, firm, vascular tumor and almost total excision was done. It was histopathologically diagnosed meningeal sarcoma but indisinguishable from malignant meningioma.
Child, Preschool
;
Connective Tissue
;
Female
;
Headache
;
Humans
;
Meninges
;
Meningioma
;
Sarcoma*
8.Morphometric Measurement of the Anatomical Landmark in Anterior Cervical Microforaminotomy.
Jae Chil CHANG ; Hyung Ki PARK ; Hack Gun BAE ; Sung Jin CHO ; Soon Kwan CHOI ; Park Jang BYUN
Journal of Korean Neurosurgical Society 2006;39(5):340-346
OBJECTIVE: The lack of anatomical knowledge for the anterior cervical microforaminotomy is liable to injure the neurovascular structures. The surgical anatomy is examined with special attention to the ventral aspect exposed in anterior cervical microforaminotomy. METHODS: In 16 adult formalin fixed cadaveric cervical spine, the author measured the distances from the medical margin of the longus colli to the medical wall of the ipsilateral vertebral artery and the angle for the ipsilateral vertebral artery. The distances from the lateral margin of the posterior longitudinal ligament to the medial margin of the ipsilateral medial wall of the vertebral artery, to the ipsilateral dorsal root ganglion was measured too. RESULTS: The distance from the medial margin of the longus colli to the ipsilateral vertebral artery was 13.3~14.7mm and the angle for the ipsilateral vertebral artery was 41~42.5 degrees. The range of distance from the lateral margin of the posterior longitudinal ligament to the ipsilateral vertebral artery was 11.9~16.1mm, to the ipsilateral dorsal root ganglion was 11.6~12.9mm. CONCLUSION: These data will aid in reducing neurovascular injury during anterior cervical approaches.
Adult
;
Cadaver
;
Formaldehyde
;
Ganglia, Spinal
;
Humans
;
Longitudinal Ligaments
;
Spine
;
Vertebral Artery
9.Characterization and localization of the unique Marek's disease virus type 2 ORF873 gene product.
Journal of Veterinary Science 2004;5(3):207-213
Studies on Marek's disease virus (MDV)-unique genes are important for understanding the biological nature of the virus. Based on complete DNA sequence analyses of the MDV genomes, the MDV genomes contain presumably at least five MDV-unique genes, which are commonly conserved among the three MDV serotypes. A recombinant baculovirus that contains the MDV serotype 2 (MDV2)-unique gene, ORF873, under the polyhedrin promoter was constructed and designated rAcORF873. Polyclonal and monoclonal antibodies, which recognize the recombinant MDV2 ORF873 protein in Spodoptera frugiperda clone 9 (Sf9) cells infected with rAcORF873, were prepared by immunizing mice with a recombinant fusion protein expressed in Escherichia coli. Immunoblot analyses with the antibodies revealed a major protein band with a molecular mass of 108-kDa in both MDV2-infected chick embryo fibroblasts (CEF) and rAcORF873-infected Sf9 cells. By indirect immunofluorescence analyses using monoclonal antibody, the authentic ORF873 protein was localized in the cytoplasm of MDV2-infected CEF cells. The monoclonal and polyclonal sera, which were generated in the present study and reacted effectively to MDV2 ORF873 protein, are considered to be useful reagents for further studying the role(s) of the ORF873 protein in MDV2 infection.
Animals
;
Cell Line
;
*Chickens
;
DNA, Viral/chemistry/genetics
;
Herpesvirus 3, Gallid/*genetics/*metabolism/pathogenicity
;
Immunoblotting/veterinary
;
Marek Disease/*virology
;
Mice
;
Mice, Inbred BALB C
;
Microscopy, Fluorescence/veterinary
;
Open Reading Frames/*genetics
;
Polymerase Chain Reaction/veterinary
;
Recombinant Proteins/genetics
;
Specific Pathogen-Free Organisms
;
Transfection/veterinary
;
Viral Proteins/genetics/*metabolism
10.Factors Predicting the Need for Shunting in Patients with Aneurysmal Subarachnoid Hemorrhage - Univariate Analysis and Logistic Regression Analysis -.
Hyung Ki PARK ; Bum Tae KIM ; Jae Chil CHANG ; Sun Chul HWANG ; Sung Jin CHO ; Won Han SHIN ; Soon Kwan CHOI ; Bark Jang BYUN
Journal of Korean Neurosurgical Society 1999;28(10):1459-1466
OBJECTIVE: Chronic hydrocephalus is one of the major complications following aneurysmal subarachnoid hemorrhage(SAH). However the incidence and predicting factors requiring shunting after SAH is not precisely known. The authors investigated the incidence of chronic hydrocephalus, timing of shunting procedure, and factors to predict the need for shunting in patients with aneurysmal SAH. PATIENTS AND METHODS: A series of 209 patients admitted to our institute from January 1993 to December 1997, who presented with SAH and underwent craniotomy for aneurysm clipping were studied retrospectively. Chronic hydrocephalus was defined as clinically and radiographically demonstrated hydrocephalus that lasted 2 weeks or longer after initial hemorrhage and that required shunting. The author divided study group into shunt group(SG, n=20) and non-shunt group(NSG, n=189). Patients were evaluated based on following factors: age, sex, history of hypertension and diabetes mellitus, consciousness at admission, Hunt-Hess grade, the presence of intracranial hemorrhage, Graeb's score, bifrontal index(BFI), Fisher grade, amount of SAH, location of aneurysm, time of aneurysm clipping, rebleeding, and vasospasm. RESULTS: The incidence of chronic hydrocephalus was 9.6%(20/209). The timing of the shunting procedure ranged from 16 days to 150 days after initial hemorrhage with the average being 77(+/-37)days. In a univariate analysis with chi-square test, age, consciousness, Hunt-Hess grade, amount of SAH, BFI, Fisher grade, and Graeb's score were significantly related with the need for shunting(p<0.05). In a multivariate logistic regression analysis, odds ratio was calculated for each variables. If the odds ratio of below 60 year of age was 1.0 then that of above 61 was 5.4(p<0.001). If the odds ratio of alert/drowsy was 1.0 then that of stupor/coma was 4.4(p<0.05). If the odds ratio of 0 of Graeb's score was 1.0 then that of 1-10 was 4.3(p<0.05). If the odds ratio of amount of SAH below score 3 was 1.0 then that of above score 4 was 1.8. If the odds ratio of BFI below 30 was 1.0 then that of above 31 was 1.1. CONCLUSION: The development of chronic hydrocephalus after aneurysmal SAH is multifactorial, but should be strongly suspected in patients with older age, decreased level of consciousness or IVH at admission. The patients require a shunt from 2 weeks to 5 months from the time of their initial hemorrhage.
Aneurysm*
;
Consciousness
;
Craniotomy
;
Diabetes Mellitus
;
Hemorrhage
;
Humans
;
Hydrocephalus
;
Hypertension
;
Incidence
;
Intracranial Hemorrhages
;
Logistic Models*
;
Odds Ratio
;
Retrospective Studies
;
Subarachnoid Hemorrhage*