1.Steroid Psychosis.
Jae Gon MOON ; Jin Hak KIM ; Yong Soon HWANG ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1994;23(7):809-815
The use of steroids has long been reported many side effects. Steroid-induced mental disorder is one of many complications associated with corticosteroid therapy. Steroid psychosis is not common disease but it may be more popular due to high steroid therapy such as pulse therapy or high dose steroid therapy. Euphoria, irritability, insomnia, and hallucination are predominating symptoms. The dosage, duration of the treatment may not be correlated with the time of the onset, duration, severity, or type of mental disturbances, but the risk of developing psychosis is increased to the high dose of steroid. It is usually reversible on dose reduction or discontinuation of the drug.
Euphoria
;
Hallucinations
;
Mental Disorders
;
Psychotic Disorders*
;
Sleep Initiation and Maintenance Disorders
;
Steroids
2.Non-Watertight Intermittent Dural Closure in Neurological Surgery.
Yong Woon CHO ; Jae Gon MOON ; Yong Soon HWANG ; In Suk PARK ; Byung Chan JEON ; Han Kyu KIM
Journal of Korean Neurosurgical Society 2000;29(5):640-643
No abstract available.
3.Spontaneous Resolution of Chronic Subdural Hematoma in Children: Case Report.
Jeong Taeg LIM ; Yong Soon HWANG ; Jae Gon MOON ; Han Kyu KIM ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1996;25(7):1531-1536
Presented here in are two cases of chronic subdural hematoma in children which were spontaneously resolved. The first case has developed as the complication of a ventriculoperitoneal shunt in bilateral cerebral convexities of a 14-year-old boy while in the other case, the hematoma was developed in the posterior fossa of a 19 days-old neonate are complication of delivery. The etiology, clinical couse, treatment and mechanism of spontaneous resolution of chronic subdural hematomas in children and adult are discussed.
Adolescent
;
Adult
;
Child*
;
Hematoma
;
Hematoma, Subdural, Chronic*
;
Humans
;
Infant, Newborn
;
Male
;
Ventriculoperitoneal Shunt
4.The Central Infarctions after Surgery for Anterior Circulation Aneurysm.
Sung Woo SEO ; Han Kyu KIM ; Jae Gon MOON ; Yong Soon HWANG ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1993;22(12):1324-1334
Among the series of 272 cases of surgically treated anterior circulation aneurysms, we experienced 6 cases of central infarctions involving caudate nucleus, globus pallidus, putamen and genu of internal capsule respectively or in combination. These surgery related complications were caused by the injury to the perforators going to the anterior perforated substance during manipulation of the large aneurysm or the aneurysms ruptured prematurely. The clinical courses of these patients, however, were not so severe. The morbidities were minimal or none after the average follow-up periods of 17 months. Thorough knowledge of the anatomy of the perforators may help to minimize the severe morbidity in the management of large or difficult aneurysms.
Aneurysm*
;
Caudate Nucleus
;
Follow-Up Studies
;
Globus Pallidus
;
Humans
;
Infarction*
;
Internal Capsule
;
Olfactory Pathways
;
Putamen
5.A Case of Takayasu's Arteritis Associated with Subarachnoid Hemorrhage and Intracranial Aneurysm: Case Report.
Tae Young KIM ; Jae Gon MOON ; Han Kyu KIM ; Young Soon HWANG ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1994;23(11):1339-1343
A rare case of Takasu's arteritis associated with subarachnoid hemorrhage and intracranial aneurysm is described. It is well known that diseases such as intracranial venous malformations, carotid artery stenosis, moyamoya syndrome, brain neoplasm, coarcatation of aorta, polycystic kidney disease, connective tissue diseases, etc are often associated with aneurysms, however an association with Takayasu's arteritis has not been reported. We discussed clinical features, radiologic finding, treatments of the case and reviewed the literatures of this disease entity.
Aneurysm
;
Aorta
;
Arteritis
;
Brain Neoplasms
;
Carotid Stenosis
;
Connective Tissue Diseases
;
Intracranial Aneurysm*
;
Moyamoya Disease
;
Polycystic Kidney Diseases
;
Subarachnoid Hemorrhage*
;
Takayasu Arteritis*
6.99m Tc HMPAO Brain SPECT in Patients with Diffuse Axonal Injury.
Tea Young KIM ; Jea Gon MOON ; Sang Kyun BAE ; Hwa Dong LEE ; Yong Soon HWANG
Journal of Korean Neurosurgical Society 1996;25(1):144-149
This study was performed in order to compare the functional imaging by 99m Tc-HMPAO brain SPECT with structural neuroimaging by CT or MRI. Eighteen patients with diffuse axonal injury underwent HMPAO brain SPECT(18), CT(9) and MR(14), and neurological status were then evaluated. Seventeen patients(94%) were revealed abnormal SPECT whereas nine patients(50%) demonstrated abnormal CT compared with ten patients(71%) demonstrated abnormal MRI. The neurololgical deficits correlated well with abnormal SPECT lesion except in one case. It is therefore concluded that brain perfusion SPECT is not only more sensitive than CT or MRI, it is also more cost effective and clinically well correlated in diffuse axonal injury patient.
Brain*
;
Diffuse Axonal Injury*
;
Humans
;
Magnetic Resonance Imaging
;
Neuroimaging
;
Perfusion
;
Tomography, Emission-Computed, Single-Photon*
7.Can DITI Predict a Sequestered Lumbar Disc?.
Choong Seon YOO ; Byung Chan JEON ; Sung Woo SEO ; Hwa Dong LEE ; Han Kyu KIM ; Yong Soon HWANG ; Jea Gon MOON
Journal of Korean Neurosurgical Society 1996;25(1):138-143
The purpose of this study is to assess the usefulness of digital infrared thermographic image(DITI) in patients with surgically treated lumbar disc disease. A series of 480 patients with lumbar herniated disc was studied. The mean age of the patients was 37 years, with a range of 18 to 64 years. Of which 126 cases of chemonucleolysis. 18 cases of percutaneous endoscopic laser discectomy, and 336 cases of laminectomy with discectomy were performed. Among these patients, 336 cases of laminectomy were assessed by DITI preoperatively. The thermal differences(delta T) between the symptomatic and asymptomatic limbs were evaluated. We have categorized the types of herniations into 3 classes: 200 protruded, 99 extruded, and 37 sequestered. The thermal differences were classified into 3 groups: 177 patients had delta T < 0.5 degrees C, 74 patients had 0.5 degrees C < or = delta T < 0.8 degrees C and 85 patients had delta T > or = 0.8 degrees C. Among the group of patients with the sequestered disc, 30(i.e. 80%) had delta T > or = 0.8 degrees C. Among the surgically treated 336 patients, non-visualization of a part of the sciatic limb on preoperative DITI was the condition used to coin the term amputation sign by the authors. In the sequestered group, the "amputation sign" was observed in 28 cases(75%). We conclude that DITI can predict a sequestered disc disease, and it allows more precise indication regarding open surgery.
Amputation
;
Diskectomy
;
Extremities
;
Humans
;
Intervertebral Disc Chemolysis
;
Intervertebral Disc Displacement
;
Laminectomy
;
Numismatics
8.Subcortical Intracerebral Hemorrhage:Clinical Analysis of 42 Patients.
Jeong Taeg LIM ; Jae Gon MOON ; Chung Sun YOO ; Han Kyu KIM ; Yong Soon HWANG ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1996;25(7):1438-1443
Forty two patients were diagnosed as having subcortical(lobar) intracerebral hemorrhage among 407 consecutive patients presenting with spontaneous intracerebral hemorrhage. Brain CT and MRI or angiography were performed in 39 patients. The authors analyzed clinical features, brain CT, etiological factors, and outcome. Headache(69%) and vomiting(55%) were most common symptoms. The incidence of seizure was 14%. The volume of hematoma on CT was below 20cc in 21 patients, between 20cc and 40cc in 16 patients, and aove 40cc in 5 patients. The most common site of hemorrhage was parietal lobe in 32 of 42 patients. The mortality rate was 9.5% and the functional outcome of the patients was generally better than in other forms of intracerebral hemorrhage. Thirty one patients had arterial hypertension which was the leading cause. Two patients had AVMs and two patients had blood dyscrasias. Unknown etiology occurred in 7 patients. Neither brain MRI nor cerebral angiography showed abnormal vascular lesion in all of the pa tients who had arterial hypertension. We conclude that no further evaluation if recommended in patients with subcortical hemorrhage who were definitely diagnosed as having arterial hypertension.
Angiography
;
Brain
;
Cerebral Angiography
;
Cerebral Hemorrhage
;
Hematoma
;
Hemorrhage
;
Humans
;
Hypertension
;
Incidence
;
Magnetic Resonance Imaging
;
Mortality
;
Parietal Lobe
;
Seizures
9.Paraganglioma of the Cauda Equina.
Yong Soon HWANG ; Jae Gon MOON ; Hee Kyoung CHANG ; Young Duk JOH ; Han Kyu KIM ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1995;24(11):1418-1425
Paraganglioma of the cauda equina or filum terminale is rare tumor and was first described in 1970. The authors present a case of paraganglioma of the cauda equina in a 55 year-old-man with nonspecific back pain. To our knowledge, there has been only a few report of MRI of a paraganglioma of the cauda equina. Diagnosis can be made with immunohistochemical study and electron microscopy after surgical removal. Because of frequent recurrence, total excision is mandatory.
Back Pain
;
Cauda Equina*
;
Diagnosis
;
Magnetic Resonance Imaging
;
Microscopy, Electron
;
Paraganglioma*
;
Recurrence
10.Prognosis of the Parenchymal Brain Metastasis According to Primary-to-Metastatic Interval.
Jung Bin LIM ; Yong Soon HWANG ; Jae Gon MOON ; Han Kyu KIM ; Hwa Dong LEE
Journal of Korean Neurosurgical Society 1993;22(5):628-633
The authors analyzed and compared three prognostic factors of the intraparenchymal metastatic brain tumors, regardless of therapeutic modalities, to evaluate the value of time-interval between diagnosis of primary cancer and brain metastasis as a prognostic factor. Our of the 109 patients of metastatic brain tumor admitted to Kosin Medical College from 1984 to 1991, 93 patients were included in this retrospective study. The survival time of these patients was statistically evaluated according to each prognostic factor. The results were as follows. Patients with mild or no neurological deficits and patients with moderate neurological deficits showed longer survival than the patients with severe neurological deficits(P<0.001). The presence of systemic metastasis at the time of diagnosis also significantly shortened overall survival(P<0.0095). Primary-to-metastatic interval did not significantly affect overall survival(P<0.6164), but the patients with brain metastasis detected within 1 year after diagnosis of the primary cancer had a longer median survival than those detected after 1 year(P<0.001). We conclude that the primary-to-metastatic interval is not valuable as a prognostic factor for intraparenchymal metastatic brain tumor, and further prospective study tailored to each specific condition will be needed for more accurate evaluation of prognostic factors.
Brain Neoplasms
;
Brain*
;
Diagnosis
;
Humans
;
Neoplasm Metastasis*
;
Prognosis*
;
Retrospective Studies