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이승환,박병문,송경섭,이수건,윤상필,이재철,이범석,양봉석 대한척추외과학회 2017 대한척추외과학회지 Vol.24 No.1
Study design: Retrospective study. Objectives: The goal of this study was to evaluate the risk factors of osteoporotic vertebral fractures (OVFs) in patients with Cushing syndrome. Summary of Literature review: In most reports, vertebral fractures in Cushing syndrome have been found to be related to osteoporosis. However, few studies have analyzed the clinical risk factors for OVFs. Materials and Methods: Thirty-two patients with Cushing syndrome who visited the orthopaedic department complaining of back pain were included in this study. Standing lateral X-rays were performed to evaluate the presence of vertebral fractures, and bone mineral density (BMD) was measured. Results: Of the 32 patients with Cushing syndrome with back pain, 8 (25%) were diagnosed with OVFs using morphometric criteria. The average weight and body mass index of the vertebral fracture group (VF group) were significantly higher than the values observed in the non-vertebral fracture group (non-VF group) (p=0.004, p=0.018). Lumbar BMD was significantly lower in the VF group (p=0.006). A risk factor for OVFs in Cushing syndrome was osteoporosis (odds ratio=18.56, 95% confidence interval=1.72-200.21, p=0.016) regardless of gender, obesity, menopause, or urine free cortisol levels. Conclusions: OVFs in Cushing syndrome have been associated with overweight, and overweight is an indicator of compliance in the treatment of Cushing syndrome. Therefore, weight reduction and the prevention of osteoporosis should be emphasized in patients with Cushing syndrome to prevent OVFs. 쿠싱 증후군에서 골다공증성 척추 골절의 위험 인자이승환 • 박병문 • 송경섭 • 이수건 • 윤상필 • 이재철 • 이범석 • 양봉석광명성애병원 정형외과연구 계획: 후향적 연구목적: 쿠싱 증후군에서 증상이 있는 골다공증성 척추 골절의 유병률을 조사하고, 골다공증성 척추 골절의 위험 인자를 분석하였다. 선행문헌의 요약: 쿠싱 증후군에서 척추 골절은 대부분은 골다공증과 연관이 있었다. 그러나 척추 골절의 다른 위험 인자에 대해 분석한 연구는 거의 없었다. 대상 및 방법: 요통으로 정형외과 외래에 내원한 32명의 쿠싱 증후군 환자를 대상으로 하였다. 흉요추부 기립위 측면 방사선을 촬영하여 척추 골절을 진단하였고, 척추와 대퇴 경부의 골밀도를 측정하였다. 척추 골절 그룹과 비골절 그룹의 통계학적 차이를 paired t-test를 이용해 비교하였고, 위험인자 분석을 위해 로지스틱 회귀 분석을 사용하였다. 결과: 전체 32명의 환자중 8명(25%)의 환자에서 골다공증성 척추 골절이 확인되었다. 척추 골절군의 평균 체중과 체질량 지수가 비골절군에 비해 유의하게 높았으며(p=0.004, p=0.018), 척추 골절군의 요추부 골밀도가 비골절군에 비해 유의하게 낮았다(p=0.006). 골다공증성 척추 골절의 위험 인자는 골다공증으로 나타났다(odds ratio 18.56, 95%CI 1.72-200.21, p=0.016). 결론: 쿠싱 증후군 환자에서 척추 골절의 발생은 과체중과 관련이 있으며, 과체중은 평소 쿠싱 증후군의 부적절한 치료로 인한 상태를 반영하는 지표라고할수 있다. 그러므로, 적절한 내분비적 치료를 통계 적정 체질량을 유지하고, 골다공증의 약물 치료를 병행하는 것이 쿠싱 증후군의 척추 골절 예방에 중요하다고 하겠다. 색인 단어: 쿠싱 증후군, 척추 골절, 골다공증약칭 제목: 쿠싱 증후군과 척추 골절
이승환,정영조 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.2
In this brief overview, the authors address the cause, clinical features, treatment and prognosis of elderly depression. The prevalence of major depression of elderly is known to be lower than that of young adult. The etiology of late life depression is multifactorial and clinical feature is different from that of young adult. But the poor social support network is the most well known risk factor of elderly depression. Clinician should keep in mind the risks and benefits of pharmacotherapy in the view of pharmacokinetics and pharmacodynamics. Suicidal risk is high in elderly depression. So It is needed that the clinician should be careful to evaluate the suicidal risk factor of elderly depression.
李承煥,安台煥,安大植 충주대 2004 産業科學論文集 Vol.12 No.-
We research on a silicon micromachined absolute humidity sensor in this paper. The sensing mechanism of this sensor uses the thermal conductivity difference of air itself and the air with the amount of water vapor. The micro-heater made by using Pt/Ta_(x)O_(y) bilayer, which is annealed in air ambient for 1 hour at 650 ℃ temperature, shows an excellent short-term stability. After temperature compensation, the humidity sensor follows one characteristic output voltage curve according to absolute humidity value. The sensitivity of absolute humidity sensor is decreased from 0.534 mV/[g/㎥] to 0.375 mV/[g/㎥] in the temperature range from 25 ℃ to 55 ℃ respectively.
후두 전적출술 후 기관루 재발에 대한 종격동 청소술 치험 1례
이승환,태경,유연희,최준석,Lee, Seung Hwan,Tae, Kyung,Yu, Yean-Hee,Choi, Joon-Suk 대한기관식도과학회 1999 大韓氣管食道科學會誌 Vol.5 No.1
Sternal recurrence has been defined as a diffuse infiltrate of neoplastic tissue at the junction of the amputated trachea and the skin. The overall prognosis is poor, resulting from progressive tracheostomal obstruction or massive hemorrhage due to erosion of major vessels. Neither radiation therapy nor chemotherapy has demonstrated any efficacy in controlling these sternal recurrence. Surgery, especially mediastinal dissection, may benefit only an occasional patient. Recently authors experienced one case of mediastinal dissection for sternal recurrence after total laryngectomy for laryngeal cancer. We report our case with a brief review of literature.