黃酸第一鐵로부터 含水酸化鐵生成에 關한 硏究

성주경,설수덕,황용길,Sung Joo Kyung,Suhl Soo Duk,Whang Yong Kil 대한화학회 1975 대한화학회지 Vol.19 No.2

황산제일철을 원료로 해서 함수산화철 안료를 제조하기 위한 실험이다. 황산제일철을 암모니아로 중화해서 Mohr's salt(ferrous ammonium sulfate)을 만들고 Mohr's salt의 농도를 Fe(II) 이온농도, 14${\sim}$72g/l, 수소이온농도를 pH3 또는 6으로 조절한뒤, 반응온도는 $90{\sim}100^{\circ}C$로 일정하게 유지하고 반응시간 2시간, 3기압으로 공기 가압한 결과는 다음과 같다. Mohr's salt의 농도가 진하고, 중성으로 갈수록 함수산화철의 수득율이 증가되며, Mohr's salt 농도가 Fe(II) 이온농도, 42.81g/l 일때, 91.5% 이상의 수득율을 얻었다. 이렇게하여 생성된 함수산화철의 결정형은 $\alpha$-goethite형이며, 색상도 천연 ${\alpha}$-goethite와 유사하였다. 이것을 $500^{\circ}C$로 하소(calcination)하니 미려한 적갈색을 띤 ${\alpha}-Fe_2O_3$가 생성되었다. The formation of iron oxide hydroxide in a ferrous sulfate was studied in different contents of iron in the solution at a temperature range of 90 to $100^{\circ}C$ under 1${\sim}$3 atmospheres. The Mohr's salt thus formed was hydrolyzed under 1 to 3 atmospheres, in 14 to 72 g/l of iron content in the solution pH 3 or 6 for two hours at 90 to $100^{\circ}C$. The results obtained was as follows; 1) In Mohr's salt solution, as the iron content was increased, with decreasing the concentration of hydrogen ion, the yield of iron oxide hydroxide was gradually increased. 2) When iron content in Mohr's salt solution was 42.81 g/l, 91.5% of iron was recovered in the form of $\alpha$-goethite similar to yellow grade of natural goethite. 3) When $\alpha$-goethite obtained was calcined of $500^{\circ}C$, it was turned into ${\alpha}$-ferric oxide with a redish brown colour.

황산제1철의 乾濕式에 의한 酸化反應에 對한 硏究

설수덕,성주경,황용길,Soo Duk Suhl,Joo Kyung Sung,Yong Kil Whang 대한화학회 1977 대한화학회지 Vol.21 No.2

황산제 1철을 전기로내에서 하소(瑕燒)시키고, 물에 침출시켜 몰비(Fe(III)/Fe(II))를 변화시킨 각각의 수용액을 가수분해하여 산화철 생성반응을 검토하였다. 하소온도가 증가함에 따라 소광(燒鑛)중의 Fe(III)/Fe(II)비가 증가하였고, $500^{\circ}C$에서 1시간 가량 하소시킨 시료가 등몰이 됨을 알았다. 등몰로 형성된 시료를 20% 수용액으로 만든 다음 pH 7 ∼ 8로 조절하고 반응온도 $100^{\circ}C$, 가압솥내 압력 3기압 및 반응시간 2시간으로 하여 가수분해 하였더니 진한흑색의 산화철이 93% 이상 생성되었다. A study on the formation of black iron oxide was carried in differents of Fe(III), Fe(II) ion in the aqueous solution that iron(II) sulfate was calcined under various temperature and leached in water. The results obtained was follows; (1) It was found that the sample calcined in an electric muffle furnace maintained at $500^{\circ}C$ for 1 hour and leached in water was equivalent mole (Fe(III) /Fe(II) = 1) in 20% aqueous solution. (2) When the above mentioned solution was hydrolyzed at pH range of 7 to 8 for 2 hours at $100^{\circ}C$, 93% and over of iron was recovered in the form of ${\alpha}-Fe_3O_4$ with a black colour.

자발성 척수내혈종 - 증례보고 -

황정현,성주경,황성규,함인석,박연묵,김승래,Hwang, Jeong Hyun,Sung, Joo Kyung,Hwang, Sung Kyoo,Hamm, In Suk,Park, Yeun Mook,Kim, Seung Lae 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.3

Hematomyelia is an extremely rare condition that cause severe neurological symptoms. We reported 4 cases of spontaneous hematomyelia, two cases of cavernous angioma and two cases of hematoma. In all patients, the clinical course was progressive ; motor and sensory abnormalities below the lesion and voiding difficulties were the common presenting symptom complex. The preoperative diagnosis was made by magnetic resonance imaging and the all patients underwent surgical exploration. Complete removal of hematoma was done in 3 patients and complete evacuation after aspiration of hematoma were performed in one patients. Neurological function did not worsen postoperatively in any patients. The early diagnosis with magnetic resonance imaging and immediate surgical treatment of the hematoma and the associated vascular malformation are considered to be the best way to halt the progression of the disease.

대뇌 신경교종증 : 임상특징 및 예후에 관한 연구

조대철,황정현,성주경,황성규,함인석,박연묵,변승열,김승래,Jo, Dae-Chuol,Hwang, Jeong-Hyun,Sung, Joo-Kyung,Hwang, Sung-Kyu,Hamm, In-Suk,Park, Yeun-Mook,Byun, Seung-Yul,Kim, Seung-Lae 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.12

Objectives : Gliomatosis cerebri is an uncommon primary brain tumor characterized by diffuse neoplastic proliferation of glial cells, with the preservation of the underlying cytoarchitecture. The aim of this study is to evaluate clinical features, outcome of surgical treatment and adjuvant therapy of gliomatosis cerebri. Methods : Between Jan. 1990 and Dec. 2000, 12 patients were diagnosed with gliomatosis cerebri based on characteristic radiological and histological findings. The patients' age ranged from 18 to 77(mean 44) years and the male to female ratio was 7 : 5. Nine patients underwent decompressive surgery and three, biopsy only. Postoperative radiation therapy was given in all cases except three. In addition to radiation therapy, four patients received chemotherapy. The mean duration of follow-up period was 18.8 months. Results : The most common presenting symptom were seizure and motor weakness. The mean duration of symptom was 5.9 months. There was 5 bilateral lesions and tumor involved corpus callosum in 5, basal ganglia-thalamus in 4, and brain stem in 2. There was no operative mortality but four patients died during the follow-up. The mean survival period for 11 patients was 20.5 months from the time of diagnosis. In univariate analysis, the lesion involving corpus callosum, basal ganglia-thalamus and brain stem correlated significantly with the short length of survival(p<0.05). Also, postoperative radiation as a adjuvant therapy prolonged the patient's survival(p<0.05). Conclusions : In the management of gliomatosis cerebri patients, early detection by MR imaging, active management of increased intracranial pressure, decompressive surgical removal and postoperative adjuvant therapy such as radiation is thought to be a good treatment modality.

제 II 형 치상돌기 골절에서 전방경유 나사못 고정술

김명진,황정현,성주경,황성규,함인석,박연묵,김승래,Kim, Myung-Jin,Hwang, Jeong-Hyun,Sung, Joo-Kyung,Hwang, Sung-Kyu,Hamm, In-Suk,Park, Yeun-Mook,Kim, Seung-Lae 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11

Objective : The aim of this study is to evaluate clinical outcome of anterior screw fixation for type II odontoid fractures for the prliematim of atlanatoaxial mobility. Methods : Between 1995 and 1999, we treated 15 cases of type II odontoid fractures by anterior screw fixation among 44 cases of odontoid fractures. Thece included 14 males and 1 female aged from 23 to 63 years, with a mean age of 39.7 years. The causes of trauma were traffic accident in 13 cases, slip down in 1 and fall down in 1. The fracture type was type II-P in 7 cases, type II-A in 3, type II-N in 2 and type II-A and P in 3. The fracture line was oblique downward and backward in 6 cases, oblique downward and forward in 3 and horizontally in 6. The range of follow up was 4 to 47 months(mean 26.5 months). Results : Adequate reduction and fixation were obtained in 12 cases. Three cases in which fracture type and line were type II-A and oblique downward forward were failed, so posterior transarticular screw fixation was performed. All except 3 failed cases had adequate cervical movement and stability. There were no operative mortality nor morbidity. Conclusion : Anterior screw fixation provides the best anatomical and functional results for type II odontoid fracture with intact transverse ligament when fracture line is horizontal or oblique downward and backward. But it is limited when fracture line is oblique downward and forward.

제 1, 2 경추간 판하철사고정술 없는 후방 경관절 나사못 고정술 및 골유합술

신용환,황정현,성주경,황성규,함인석,박연묵,김승래,Shin, Yong Hwan,Hwang, Jeong Hyun,Sung, Joo Kyung,Hwang, Sung Kyu,Hamm, In Suk,Park, Yeun Mook,Kim, Seung Lae 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11

Objective : The goal of this study was to evaluate the clinical outcome of the posterior C1-2 transarticular screw fixation without C1-2 sublaminar wiring in atlantoaxial instability. Methods : Between Apr. 1995 and Feb. 2000, we used this technique in treat randomly selected 17 patients (11 men, 6 women) who had atlantoaxial instability. The causes of instability were : type II-A odontoid process fracture(10 cases) ; type II-P odontoid process fracture(1 case) ; Os odontoideum(2 cases) ; transverse ligament laxity due to rheumatoid disease(1 case) ; and, transverse ligament injury without bone fracture(3 cases). All cases were operated with posterior C1-2 transarticular screw fixation with 3.5mm cortical screw and interlaminar iliac graft without sublaminar wire fixation. The mean follow-up period was 28 months(5 to 58 months) and the mean age at the time of operation was 41 years(15 to 68 years). All Patients were allowed to ambulate with Philadelphia neck collar on the first post-operation day. Results : Bony fusion was successfully achieved in all cases demonstrated at 3-month follow-up studies. There was no operative mortality or morbidity. Conclusion : The authors conclude that the posterior transarticular screw fixation without C1-2 sublaminar wiring provide adequate stability with high bony union rate in atlantoaxial instability of various causes.

뇌동맥류 수술 환자에서 급성 수두증 병발후 단락술이 요하는 만성 수두증 합병의 임상적 및 형태학적 비교

신용환,황정현,함인석,성주경,황성규,박연묵,김승래,Shin, Yong Hwan,Hwang, Jeong Hyun,Hamm, In Suk,Sung, Joo Kyung,Hwang, Sung Kyoo,Park, Yeun Mook,Kim, Seung Lae 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11

Objectives : The incidence of acute hydrocephalus(AHC) after aneurysmal subarachnoid hemorrhage reported as 13-31%. The AHC resolves spontaneously in some cases(simple AHC), but about 30% of the AHC progresses to shunt-dependent hydrocephalus(SDHC). The aim of this study was to understand clinical predisposing factors causing SDHC with performing differential clinical analyses between 2 subgroups, the simple AHC and the progresed SDHC. Methods : The 250 surgically treated patients with aneurysmal SAH over last two years were evaluated. Forty four patients(17.6%) of them showed the AHC. Of theses 37 cases were retrospectively analyzed, excluding 7 patients who died within 2 weeks after hemorrhage attack. Of the 37 AHC cases, 21 patient(56.8%) were complicated with the simple AHC, and 16 cases(43.2%) were progressed SDHC. Results : The older age(p<0.05), poor clinical grade(p=0.03), larger amount of SAH in perimesencephalic cistern on CT scan(p=0.005) were significantly related to the SDHC. No significant difference was noted in aneurysm location, multiplicity, rebleeding, hypertension and Fisher grade between 2 subgroups. Conclusion : Of the total 37 AHC, the simple AHC was 56.8% and the progressed SDHC 43.2%. The older age, poor clinical grade, large amount of SAH in perimesencephalic cistern were significant predisposing factors causing the SDHC. The large amount of SAH in perimesencephalic cistern is the single most important predisposing factor developing the progressed SDHC.

The Contributory Factors of CSF Shunt Failure

김영돈,황성규,황정현,성주경,함인석,박연묵,김승래,Kim, Young Don,Hwang, Sung Kyoo,Hwang, Jeong Hyun,Sung, Joo Kyung,Hamm, In Suk,Park, Yeun Mook,Kim, Seung Lae The Korean Neurosurgical Society 2001 Journal of Korean neurosurgical society Vol.30 No.1

목 적 : 뇌실 복강간 단락술 부전의 기여인자를 조사 및 분석하여 뇌실 복강간 단락술의 합병증 및 재수술의 가능성을 줄이는 데에 목적이 있다. 대상 및 방법 : 1995년 1월부터 1998년 12월까지 본원에서 뇌실 복강간 단락술을 시행 받은 237명의 수두증 환자를 후향적 방법으로 고찰하여 뇌실 복강간 단락 부전의 기여인자 및 단락기 생존율을 통계학적으로 분석하였다. 결 과 : 수두증의 원인은 종양, 출혈, 감염, 선천성 기형, 정상 뇌압 수두증, 외상 등이었다. 68명의 환자에서 109회의 재수술이 이루어졌다. 재수술의 이유는 폐색, 근위부 카세타의 위치이상, 감염 등이었다. 단락기 생존율은 1년, 2년, 3년에 각각 77.1%, 75.4%, 74.1%이었다. 10세 이하의 환자에서 재수술의 빈도가 통계학적으로 의의 있게 높았다. 그리고 수두증의 원인에 따라서 통계학적으로 의의 있게 재수술의 빈도 차이가 있었다. 결 론 : 대부분의 뇌실 복강간 단락 부전은 술후 1년내에 발생하였다. 환자의 나이 및 수두증의 원인이 뇌실 복 강간 단락 부전의 주요 기여인자였다. To investigate contributory factors of CSF shunt failure, 237 patients, who underwent shunt placement from January 1995 to December 1998 at our hospital, were reviewed retrospectively. The causes of the hydrocephalus were tumor, hemorrhage, infection, congenital anomaly, normal pressure hydrocephalus, trauma and others. One hundred nine revisions of CSF shunting were done during follow up periods. The causes of shunt revisions were mechanical obstruction, malposition, infection and others. The contributory factors of CSF shunt failure and shunt survival rate were analyzed using SPSS. The shunt survival rate at 1, 2 and 3 years after procedure was 77.1%, 75.4%, 74.1% respectively. In the young age group below 10 years old, postinfectous hydrocephalus was the most common high risk factor for shunt revision. In conclusion, the most shunt failures developed in the first year after surgery and the age and causes of the hydrocephalus were major determinant factors of shunt revision.

원저 : 무당개구리 ( Bombina orientalis ) 설 (舌) 비만세포의 형태학적 연구

김정수(Jeong Soo Kim),전병득(Byoung Deuk Jun),이무삼(Moo Sam Lee),박병건(Byoung Keon Park),송창호(Chang Ho Song),성주경(Joo Kyung Sung),이상찬(Sang Chan Lee) 전북대학교 의과학연구소 1990 全北醫大論文集 Vol.14 No.3

천막상부의 대형 뇌동·정맥기형 : Clinical Observation on Large Supratentorial Arteriovenous Malformations

成周慶,咸印碩,朴淵默,金乘來 慶北大學校 醫科大學 1984 慶北醫大誌 Vol.25 No.2

천막상부 대뇌에서 발생된 대형 뇌동, 정맥기형 환자 25명을 대상으로 하여 분석 관찰하였다. 남녀의 발생비는 5.4대 1이었다. 연령별 분포는 21세에서 40세까지가 전체의 60%였으며 평균 연령은 31세였다. 우측 대뇌반구에서의 발생은 60%였으면 두정엽과 전두엽에서의 발생은 각각 40%로써 가장 높은 빈도였다. 신경학적 증상과 소견은 두통이 76%로서 가장 많았으며 출혈 소견, 의식장애, 대측에 운동 및 지각 장애, 간질, 시야결손 및 잡음의 청취 순이었다. 출혈은 68%에서 있었으며 첫 출혈의 년령은 21∼30세 및 31∼40세층에서 각각 39.4%로서 가장 많았다. 40세 미만에서의 출혈은 88.2%이었다. 수술군은 52%이었으며 사망자는 없었다. 수술군에서 술후 결과는 술전에 비해 호전된 것이 69.2%었으며 변함이 없거나 악화된 것이 각각 15.4%이었다. Clinical analyses were made on 25 patients with supratentorial large arteriovenous malformations. The ratio of male to female was 5.4 to 1 in incidence. The age group, 21-40, in male took up 60% of the total cases, and the average age of the diagnosed was 31. Sixty percent of all lesions were found in the right cerebral hemisphere and 40% each in parietal and frontal lobe, which was found to be the highest incidence. The order of manifestated neurologic symptoms and signs was, headche, hemorrhagic symptoms, disturbance of consciousness, motor and sensory deficit, seizure and bruit. Sixty eight percent of the whole cases had evidence of hemorrhage and initial hemorrhage occurred at ages in such percentage as follows, 39.4% each between the ages of 21 and 30, and 30 and 40, and the percentage of hemorrhage among those bleow 40 was 88.2%. Of the 52 percent operated cases, there was no death. The results of operation were, improved 69.2%, 15.4% each in unchanged and worsened.