1.Advances and Technical Standards in Neurosurgery (Volume 33).
Journal of Korean Neurosurgical Society 2008;43(2):123-123
No abstract available.
Neurosurgery
2.The effect of granulocyte colony stimulating facto(G-CSF) in a patient with propylthiouracil-induced agranulocytosis.
Kwang Hyen YOU ; Seung Si SON ; Seung Yel SONG ; Myoung Seon PARK ; Yong Gu LEE ; Chung Gu CHO
Journal of Korean Society of Endocrinology 1993;8(3):347-350
No abstract available.
Agranulocytosis*
;
Granulocytes*
;
Humans
3.Accumulation of Thallium-201 in Hemorrhagic Cerebral Infarction.
Jae Gol CHOE ; Kyung Min KIM ; Ki Yeol LEE ; Yong Gu CHUNG
Korean Journal of Nuclear Medicine 1999;33(3):337-340
Thallium-201 brain SPECT is utilized in the diagnosis of brain tumor especially in cases where CT or MRI findings alone cannot differentiate malignant lesion from benign. Recently we came across two cases of positive T1-201 brain SPECT in clinically suspected brain tumor patients that turned out to be hemorrhagic cerebral infarction instead on biopsy. The findings in these cases demonstrate that thallium-201 accumulation may occur by the breakdown of the blood-brain barrier and phagocytic cell infiltration in the liquefaction stage of infarction.
Biopsy
;
Blood-Brain Barrier
;
Brain
;
Brain Neoplasms
;
Cerebral Infarction*
;
Diagnosis
;
Humans
;
Infarction
;
Magnetic Resonance Imaging
;
Phagocytes
;
Tomography, Emission-Computed, Single-Photon
4.Aneurysm Formation of Cervical Aortic Arch Combined with Subaortic Left Innominate Vein: Case Report .
Young Min HAN ; Ja Hong GU ; Gong Yong JIN ; Hyo Sung KWAK ; Gyung Ho CHUNG ; Myoung Ja CHUNG
Journal of the Korean Radiological Society 2004;50(1):27-32
An asymptomatic 26-year-old man was initially admitted with a suspicious mediastinal mass. On the basis of the contrast-enhanced chest CT findings, aneurysm formation involving the left cervical aortic arch associated with subaortic left innominate vein was diagnosed. The aneurysm was confirmed by MR angiography and DSA. The arch aneurysm was surgically removed. We describe this case, and review the literature.
Adult
;
Aneurysm*
;
Angiography
;
Aorta, Thoracic*
;
Brachiocephalic Veins*
;
Humans
;
Tomography, X-Ray Computed
5.Recent Trends for Optimization of Electroconvulsive Therapy.
Tak YOUN ; Ung Gu KANG ; Yong Sik KIM ; In Won CHUNG
Journal of Korean Neuropsychiatric Association 2016;55(1):12-24
Electroconvulsive therapy (ECT) is a safe and effective treatment not only for various mental disorders including depression, mania, and schizophrenia, but also for inadequacy and resistance to pharmacotherapy and the psychiatric emergences. The historical ups and downs of ECT treatment since its first introduction in 1938 were ended by the validation impacts of evidence-based medicine in the 1980s and by other clinical issues. Clinical research for the optimization of ECT to maximize therapeutic effects and to minimize adverse effects is ongoing to establish standardized procedures and educational programs through the ECT center. In addition, guidelines for ECT practices are also being developed for the clinical excellence of ECT practices in accordance with the recommendations of international organizations such as World Psychiatric Association and American Psychiatric Association. This article was prepared by reviews of the literature, direct observations of ECT practices abroad, and interviews with ECT experts around the world in order to enhance therapeutic effects with recently updated ECT practices under the belief that the most appropriate treatments should be provided to the patients in need.
Bipolar Disorder
;
Depression
;
Drug Therapy
;
Electroconvulsive Therapy*
;
Evidence-Based Medicine
;
Humans
;
Mental Disorders
;
Schizophrenia
6.The Effect of Gamma Knife Surgery on Uveal Melanoma.
Jae Young CHOI ; Kyung Hoe LEE ; Yong Gu PARK ; Sang Sup CHUNG
Journal of Korean Neurosurgical Society 1997;26(9):1228-1230
The optimal management of uveal melanoma is still a matter of controversy. To determine the effect of Gamma Knife surgery on patients with uveal melanoma, the authors reviewed the outcome of five operations performed between September 1993 and August 1996. The mean age of the patients was 60.7(range 42 to 76) years; the median follow-up period was 10 months, and four patients were followed up for more than 6 months. The mean tumor volume was 3442mm3(mean diameter 15.3mm) and all patients were irradiated with a mean maximum dose of 74Gy (range 60-80Gy), using a 50% isodose on the tumor margin. In one patient, the tumor disappeared completely 32 months after Gamma Knife surgery; because the tumor did not regress, one patient subsequently required enucleation, and two remained stable. During a mean follow-up period of 10 months, vision was preserved in two patients, but one went blind; in one, enucleation was performed because the tumor did not regress. These results suggest that in cases of uveal melanoma Gamma Knife surgery can effectively control local tumors, can spare the eyeball, and may prevent loss of vision.
Follow-Up Studies
;
Humans
;
Melanoma*
;
Tumor Burden
7.Metastatic Thoracic Intramedullary Small Cell Carcinoma: Case Report.
Geun Hoe KIM ; Yong Gu CHUNG ; Jeong Wha CHU
Journal of Korean Neurosurgical Society 1995;24(7):826-830
The incidence of metastasis to the spinal cord in patients with systemic carcinoma has been extimated to be 0.9 to 8.5%. Attempts to aggressively remove intramedullary spinal cord tumor may cause increased neurologic deficits and a worsend outcome. The authors present the case of a multiple intramedullary meetastatic spinal cord tumor which had metastasized from the lung to the thoracic spinal level. Pathologic diagnosis of the small cell carcinoma was made from the tumor specimen obtained by stereotaxic-guided neddle biopsy after which the patient was treated with radiotherapy and chemotherapy.
Biopsy
;
Carcinoma, Small Cell*
;
Diagnosis
;
Drug Therapy
;
Humans
;
Incidence
;
Lung
;
Neoplasm Metastasis
;
Neurologic Manifestations
;
Radiotherapy
;
Spinal Cord
;
Spinal Cord Neoplasms
8.Cervical Syringomyelia Associated with Cerebellar Mixed Oligo-Astrocytoma: A Case Report.
Jun Hyeok SONG ; Yong Gu CHUNG ; Ki Chan LEE ; Hoon Kap LEE
Journal of Korean Neurosurgical Society 1995;24(6):718-722
The authors present a case of cervical syringomyelia associated with cerebellar mixed oligoastrocytoma in an 18-month-old boy who was normally delivered at full-term. The child presented with an increasing incidence of vomiting and irritability, and a poor truncal control. Preoperative magnetic resonance imaging of the brain revealed cerebellar vermian tumor with an obstructive hydrocephalus and a small-sized syringomyelia at the 6th cervical vertebral level. The tumor was completely removed via suboccipital craniectomy. Histologically, the tumor consisted of mixed oligo-astrocytoma. The cervical syringomyelia was conservatively managed with no specific operative treatment. At two months postoperatively, magnetic resonance imaging of the cervical spine showed a remarkable reduction in size of the syringomyelic cavity.
Astrocytoma
;
Brain
;
Cerebellar Neoplasms
;
Child
;
Humans
;
Hydrocephalus
;
Incidence
;
Infant
;
Magnetic Resonance Imaging
;
Male
;
Spine
;
Syringomyelia*
;
Vomiting
9.Expression of androgen receptors in astrocytoma.
Yong Gu CHUNG ; Han Kyeom KIM ; Hoon Kap LEE ; Ki Chan LEE
Journal of Korean Medical Science 1996;11(6):517-521
Thirty-two cases of surgically removed astrocytoma were evaluated for the expression of androgen receptors(ARs) immunohistochemically and the relationships between androgen receptors, DNA ploidy pattern, and survival of patients were studied. The cases included 18 grade I/II astrocytomas, 4 anaplastic astrocytomas, and 10 glioblastoma multiforme(GBM). Positive AR was present in 12 out of 32 cases(38%), which consisted of 5 cases in grade I/II(28%), 3 cases in anaplastic astrocytoma(75%), and 4 cases in GBM(40%). For both low and high grade astrocytomas, sex and ploidy pattern were not correlated with expression of the androgen receptors. Androgen receptor expression did not significantly affect the survival time. This study confirms previous reports of a low incidence of androgen receptors in astrocytomas. In addition, it shows that expression of androgen receptors is not correlated with DNA ploidy pattern and survival of patients in astrocytoma.
Adolescent
;
Adult
;
Aged
;
Astrocytoma/*metabolism/pathology
;
Brain Neoplasms/*metabolism/pathology
;
Child
;
Female
;
Flow Cytometry
;
Glioma/metabolism/pathology
;
Human
;
Male
;
Middle Age
;
Ploidies
;
Receptors, Androgen/*biosynthesis/genetics
;
Support, Non-U.S. Gov't
;
Survival Analysis
10.Expression of androgen receptors in astrocytoma.
Yong Gu CHUNG ; Han Kyeom KIM ; Hoon Kap LEE ; Ki Chan LEE
Journal of Korean Medical Science 1996;11(6):517-521
Thirty-two cases of surgically removed astrocytoma were evaluated for the expression of androgen receptors(ARs) immunohistochemically and the relationships between androgen receptors, DNA ploidy pattern, and survival of patients were studied. The cases included 18 grade I/II astrocytomas, 4 anaplastic astrocytomas, and 10 glioblastoma multiforme(GBM). Positive AR was present in 12 out of 32 cases(38%), which consisted of 5 cases in grade I/II(28%), 3 cases in anaplastic astrocytoma(75%), and 4 cases in GBM(40%). For both low and high grade astrocytomas, sex and ploidy pattern were not correlated with expression of the androgen receptors. Androgen receptor expression did not significantly affect the survival time. This study confirms previous reports of a low incidence of androgen receptors in astrocytomas. In addition, it shows that expression of androgen receptors is not correlated with DNA ploidy pattern and survival of patients in astrocytoma.
Adolescent
;
Adult
;
Aged
;
Astrocytoma/*metabolism/pathology
;
Brain Neoplasms/*metabolism/pathology
;
Child
;
Female
;
Flow Cytometry
;
Glioma/metabolism/pathology
;
Human
;
Male
;
Middle Age
;
Ploidies
;
Receptors, Androgen/*biosynthesis/genetics
;
Support, Non-U.S. Gov't
;
Survival Analysis