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김충현,백광흠,김재민,김남규 한양대학교 의과대학 1998 한양의대 학술지 Vol.18 No.1
We report a case of 23-year-old right-handed male who had transcortical mixed aphasia caused by severe head injury. On admission, Glasgow Coma Scale(GCS) score of the patient was 8, and he had already undergone a craniotomy for acute subdural hematoma in the left frontotemporal region. He also had right spastic hemiparesis and aphasia on neurological examination. At 4 months after injury, he had echolalia. his object naming, spontaneous speech, auditory comprehension, reading and writing on dictation were also severely impaired. Magnetic resonance(MR) images showed cortical and subcortical lesions in the left frontoparietal lobes and intact perisylvian speech area. The causes of speech and language disturbance may be variously localized and distinguishing characteristics according to location of the lesion are discussed.
김충현,임홍재,하영일 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.12
A case of rare intracranial, skull and orbital metastasis is presented. A 34-year-old man was found to have mental deterioration with proptosis of the right eye and scalp swellings. The intracranial, skull and orbital tumors were verified to be hepatocellular carcinoma and the patient died 3 days after admission. The literature of hepatoma with cranial and orbital metastasis is briefly reviewed.
외상성 시신경손상에 대한 시신경관 감압술에 따른 시력평가
김충현,송관영,하영일 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.4
Nine patients with traumatic optic nerve injury were treated with optic canal decompression via transcranial approach. Postoperative visual function evaluated by visual acuity in all patients and monitoring of visual evoked potential in 3 patients. 4 of 8 patients showed improvement in visual acuity and 2 of 3 patients also improved in the results of visual evoked potential monitoring. The mean duration between injury and operation of whom showed postoperative improvement of visual function was 6.8 days but 13 days in 5 unimproved or deteriorated patients. These findings indicate that optic canal decompression is recommended for patients with traumatic optic nerve injury who show no neurological improvement by conservative management. And also, the shorter preoperative duration, the better visual outcome postoperauvely.
두개강내 척색종에 대한 임상적 고찰 및 치료성적 : Clinical Review and Therapeutic Outcome
김충현,하영일,송관영,한윤경 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.7
Chordomas are uncommon tumors arising from the embryonic remnants of the fetal noto-chord. The spheno-occipital region accounts for 36 percent of chordomas. The authors are presenting four cases of intracranial chordomas with clinical manifestation was analyzed. All patients were men and their mean age was 37 years old. The presenting complaints were diplopia in 2 patients and decreased visual acuity in the other two. Radiologic studies demonstrated extensive bony destruction of the skull base and soft mass with punctate calcification in all 4 cases. Treatment consisted of subtotal removal of tumor and subsequent radiotherapy). Histo-pathologically. three of the four patients had typical chordomas and the remaining case was confirmed as chondroid chordoma. The three typical chordomas recurred after initial treatment. 2 of these three were reoperated but in the 10 months and 33 months, respectively after initial diagnosis. The patient with chondroid chordoma remained well for 46 months after initial treatment without significant neurological deficits. In conclusion. therapeutic outcome of intracranial chordomas are grim because of their aggressive that frequent recurrence and inability to remove tumors completely. With the exception. chondroid chordoma has good prognosis and long term survival.
Cortisone acetate 투여한 마우스의 Pneumocystis carinii 감염양상 및 세포매개성 면역반응에 관한 연구
김충현,이영하,나영언,신대환 충남대학교 의과대학 지역사회의학연구소 1991 충남의대잡지 Vol.18 No.2
This study was attempted to find the cell-mediated immune responses and infection aspects of Pneumocystis carinii in immunosuppressive mice. The experimental groups were administered the suppressive regimen consisting of cortisone acetate 2.5mg injected subcutaneously twice a week, a low(8%) protein diet, and tetracycline in the drinking water(1mg/ml) for 10 weeks. From the 1st week after cortisone acetate injection, the number of P. carinii cysts in the lung specimens were examined by Gomori's methenamine silver stain at 1 week interval for 10 weeks. And the blastogenic response of spleen cells treated with Con. A (5.0㎍/ml) was examined by [^3H]-thymidine incorporation assay at the same time. The results obtained in this study were as follows: 1. The number of P. carinii cysts were remarkably increased in the lungs from 2 weeks to 4 weeks, and thereafter was slowly increased throughout the experiment. 2. The blastogenic response of Con. A treated-splenocytes from mice injected with cortisone acetate was significantly declined as compared with those of the control mice(p<0.05). 3. There were not correlation between the number of P carinii cysts in the lung specimens and the blastogenic responses of splenocytes to Con. A(correlation coefficient, r=0.38285, p<0.2749).
金忠顯 慶北大學校 自然科學大學 地質學科 地質學硏究會 1990 伏賢地質 Vol.- No.12
本 硏究는 大邱-三千浦地域에 分布하는 咸安層 上部와 鎭東層 下部에 대한 層序學的 硏究이다. 특히 咸安層-鎭東層境界와 九山洞凝灰岩과의 層序에 중점을 두고 硏究하였다. 九山洞凝灰岩은 大邱에서 三千浦까지 연속적으로 分布함이 밝혀겼으며 그 결과 九山洞凝灰岩과 咸安層-鎭東層境界는 확실하게 구별이 되어 졌다. 本 硏究에 의하면 九山洞凝灰岩은 주로 石英, 長石 및 岩片(주로 外碎片)으로 構成되어 있으며 顯徵鏡下에서 石英, 長石粒子는 심한 角狀이나 石英 中에는 灣構造가 나타나기도 하는데 이는 마그마 챔버의 disequilibrium condition 下에서 石英이 녹은 것으로 생각된다. 九山洞凝灰岩은 咸姿層-鎭東層境界와 비교하면 昌寧郡 大地面 주매리 일대에서는 鎭東層 最下部에 分布하지만 그 밖의 地域에서는 咸安層 上部 및 中部에 分布한다. This study is a stratigraphic detail work of the upper part of the Haman Formation and the lower part of the Jindong Formation in the Taegu-Samchonpo area. A particular emphasis has been on the stratigraphy of the boundary between the two formations and the Kusandong Tuff. Distribution of the Kusandong Tuff has been confirmed from Taegu to Samchonpo. In result, the stratigraphic relation of the Kusandong Tuff and the boundary between the two formations have been clarified. The petrological and sedimentological research of the Kusandong Tuff have also been involved in this study. The Kusandong Tuff is composed chiefly of the alloclastic grains of quartz, feldspar and rock(mainly shale) fragments. Under the microscope, the quartz and the feldspar grains are often very sharply angular, but are sometimes well rounded with embayment structure suggesting resorption in magma chamber due to magmatic disequilibrium condition.
김충현 충남대학교 의과대학 지역사회의학연구소 1993 충남의대잡지 Vol.20 No.2
The purpose of this study is to describe the technical details and efficacy of four balloon dilatation therapy performed in two patients with fibrous bronchial stenosis caused by endobronchial tuberculosis by using an inflatable balloon catheter(5F, diameter 10mm, length 4cm). Balloon bronchoplasty of the diffuse & multifocal fibrous stricture of left main bronchus was performed safely, repeatedly & successfully through nasal cavity under fluoroscopic guidance with the patient under local anesthesia. The patient's exertional dyspnea & productive cough were improved after procedure. There was no complication except mild fever, blood-tinged sputum & tolerable cough. In conclusion, balloon bronchoplasty could be the first choice for treating relatively complex cicatricial tuberculous bronchial stenosis.