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김석철,정신,김재성,이정길,김태선,김재휴,김수한,강삼석,이제혁,박재우,이민철,Kim, Seok-Chul,Jung, Shin,Kim, Jae-Sung,Lee, Jung-Kil,Kim, Tae-Sun,Kim, Jae-Hyoo,Kim, Soo-Han,Kang, Sam-Suk,Lee, Je-Hyun,Park, Jae-Woo,Lee, Min-Chul 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.1
Skull or brain metastasis from thyroid carcinoma is rare. Between Jan. 1993. and Jan. 2000. the authors experienced 7 cases of skull(4 cases) or brain(3 cases) metastasis from thyroid carcinoma. Clinical characteristics, radiologic findings and pathologic features were analyzed retrospectively. Among 4 cases of skull metastasis, 3 cases were follicular carcinoma and one was papillary carcinoma with follicular variant. All cases of brain metastasis were papillary carcinoma. We treated the patients by combination with surgical resection, radioactive iodine therapy and radiation therapy. Characteristics of skull or brain metastasis from thyroid carcinoma is reviewed with a pertinent literature.
김석철,이정길,김재성,김태선,정신,김재휴,김수한,강삼석,이제혁,Kim, Seok-Chul,Lee, Jung-Kil,Kim, Jae-Sung,Kim, Tae-Sun,Jung, Shin,Kim, Jae-Hyoo,Kim, Soo-Han,Kang, Sam-Suk,Lee, Je-Hyuk 대한신경외과학회 2001 Journal of Korean neurosurgical society Vol.30 No.3
Objective : Massive cerebral infarction could be accompanied by severe brain swelling and death secondary to transtentorial herniation. Approximately 10% to 15% of middle cerebral artery infarctions are associated with this phenomenon. However, the effectiveness and timing of decompressive surgery are still controversial. In this study, we present our results on the effect of decompressive craniectomy in life threatening cerebral infarction. Method : We retrospectively analyzed 15 patients who underwent decompressive craniectomy for massive cerebral infarction from January 1997 to April 1999. Surgical indication was based on the clinical signs such as neurological deterioration, pupillary reflex, and radiological findings. Clinical outcome was assessed by Glasgow Outcome Scale (GOS). Results : All 15 patients(five men, ten women ; mean age, 52.3 years ; right 11, left 4) were treated with wide craniectomy and duroplasty. The average time interval between onset of symptom and surgical decompression was 2.9 days. Clinical signs of uncal herniation(anisocoria, or fixed and dilated pupils) were presented in 13 of 15 patients. Mean Glasgow coma scale(GCS) was 12.4 points on admission, 8.1 points on preoperative state and 11.8 points postoperatively. Overall outcomes were favorable in 5 cases(Glasgow outcome scale : GOS I, II), unfavorable in 6 cases(Glasgow outcome scale : GOS III, IV) and dead in 4 cases. Conclusion : Early decompressive craniectomy before brain stem compression is considered as an effective lifesaving procedure for massive cerebral infarction unresponsive to aggressive medical therapy.
1992년과 1999년의 농가 비료이용 실태 변화 비교
김석철,박양호,이연,이주영,김충수,김필주,Kim, Seok-Cheol,Park, Yang-Ho,Lee, Youn,Lee, Ju-Young,Kim, Chung-Su,Kim, Pil-Joo Korean Society of Soil Science and Fertilizer 2003 한국토양비료학회지 Vol.36 No.5
Korea is one of those countries that have very high usage rates of chemical fertilizers per unit area of cropland. To reduce the fertilizer application rate, a variety of agricultural polices has been introduced since the 1990s. In this study, fertilizer usage was surveyed on the farm base throughout the country in 1999, and the data were compared with those of 1992. Organic fertilizer application rates were decreased in most cereal crops with time pass, but maintained similar levels in vegetables grown in plastic-film houses and in upland soils. Chemical fertilizer application rates were decreased in most of the cereal crops and vegetables surveyed; however, this reduction was concentrated in phosphate and potassium usage, but not in nitrogen. In spite of this decrease, the fertilizer application levels to most crops were maintained at levels much higher than recommended. In the nutrient balance, which was calculated from the difference between input (chemical and organic fertilizers) and output (agricultural products), the nitrogen nutrient surplus did not decrease; however, phosphate and potassium decreased by 21% and 13%, respectively, in 1999 compared with 1992. To reduce fertilizer utilization and to conserve environment, further reduction of fertilizer application is essential. 우리나라는 농경지 단위면적 당 화학비료 시용량이 높은 국가로 분류되고 있다. 화학비료 시용량 저감을 위해 정부에서는 1990년 들어 다양한 정책적 지원을 지속해오고 있다. 본 연구에서는 1999년 전국의 시군을 대상으로 농가비료이용실태를 작물별, 농지이용유형별로 조사하여 1992년 농가비료이용실태와 비교하였다. 주요 작물에 대한 유기질비료의 평균 시용율은 최근 크게 감소하였으나, 시설재배지와 밭토양에서의 유기물 시용율은 1992년과 큰 변화가 없었다. 농가포장의 화학비료 시용율은 대부분의 곡류와 채소작물에서 다소 감소하는 경향을 보였다. 화학비료 중 질소질 비료 시용율 감소는 거의 없었으며, 인산과 칼리질 비료의 시용량 감소가 전체 화학비료 시용량에 감소에 영향을 주었다. 이러한 화학비료 시용량 감소에도 불구하고 대부분의 작물에 대한 비료사용량은 추천 시비량을 크게 초과하고 있었다. 양분 투입량과 회수량간 차이를 이용하여 계산된 양분수지를 계산한 결과, 질소의 과잉시용은 거의 감소되지 않고 있으나, 인산과 칼리의 시용량은 1992년에 비해 1999년 각각 21%와 13% 감소되었다. 결과적으로 정부와 관련기관의 적극적인 홍보에도 불구하고 1999년 현재까지 농가포장에서는 비료가 과잉시용되고 있었으며, 이를 개선하기 위해 토양검정치를 기준으로 산정한 추천시비량 수준으로 양분 시용량의 저감을 위한 효과적인 기술지원과 지도관리가 필요할 것으로 판단되었다.