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칸디다 맥락망막염에 합병된 맥락막신생혈관에서 유리체강내 베바시주맙 주입술 치료
이상협,이정욱,신용운,이병로,Sang Hyup Lee,MD,Jung Wook Lee,MD,Yong Un Shin,MD,PhD,Byung Ro Lee,MD,PhD 대한안과학회 2014 대한안과학회지 Vol.55 No.7
<b>Purpose:</b> To report a case of choroidal neovascularization (CNV) secondary to candida chorioretinitis initially treated with an intravitreal bevacizumab injection. <b>Case summary:</b> A 50-year-old female presented at our clinic with decreased vision and metamorphopsia in her left eye of 5 days duration. She received an anti-fungal treatment 2 months prior due to the presence of endogenous candida choroiditis in both eyes. Fluorescein angiography and optical coherence tomography (OCT) revealed juxtafoveal CNV in her left eye. Three monthly intravitreal injections of bevacizumab were administered as the initial loading dosage. Her visual symptoms improved and CNV regression was observed on OCT. No recurrence or complications were observed during the 6 month follow-up. <b>Conclusions:</b> Based on the present study results we suggest that intravitreal bevacizumab injection can be used to effectively treat CNV and improve visual symptoms during the treatment of juxtafoveal CNV associated with candida choroiditis. J Korean Ophthalmol Soc 2014;55(7):1106-1110
진수원(陳修園)의 표본중기(標本中氣) 이론(理論) 활용에 관한 연구 - 『상한론천주』를 중심으로 -
이상협,Lee, Sang-Hyup 대한한의학방제학회 2017 大韓韓醫學方劑學會誌 Vol.25 No.4
Objective : Zhang zhi-cong insisted the theory related to the 'Six-meridian qi transformation', and Zhen xiu-yuan inherited that theory understanding six-meridian disease of "Shang-Han-Lun". This emphasizes that the disease of 'three yin and three yang' in "Shang-Han-Lun" is a disease caused by Six-meridian qi transformation, not a lesion of meridian itself. He said, "If you do not know brightly in the 'Tip, Root and Middle qi', you can not read the "Shang-Han-Lun"." Therefore, in this paper, we examine the interpretation of the "Shang-Han-Lun"by using the theory of 'five circuits and six qi'. Method : First, extract sentences related to 'Tip, Root and Middle qi' from the sentences of "Shang-Han-Lun" Second, the sentence is interpreted through the Zhen xiu-yuan's "Sang han lun qian zhu". Third, the meaning of the sentence is examined and summarized. Result : Zhen xiu-yuan proposed a clear and systematic theory that can understand the meaning of Six-meridian in "Shang-Han-Lun", by utilizing the discipline that 'Tip, Root and Middle qi' Conclusion : The change of 'Tip, Root and Middle qi' is a very central theory that explains the properties of 'Yin and Yang' and mutual correspondence among Korean medicine theories. It also provides basic directions for understanding the changing patterns of disease.
이상협,박찬용,정성석,최혜미,Lee, Sang-Hyeop,Park, Chan-Yong,Hye-Mi, Sung-Suk Chung,Choi, Hye-Mi 한국데이터정보과학회 2011 한국데이터정보과학회지 Vol.22 No.1
동일한 표본에 대하여 여러 시점에 걸쳐 반복적으로 조사되는 패널자료의 경우 표본의 탈락은 조사 결과의 신뢰성과 표본의 대표성 등에 문제를 야기할 수 있어 표본 탈락의 경향이나 요인에 대한 분석을 통해 표본의 탈락률을 낮추는 방안이 모색되어져야 할 것이다. 본 연구에서는 11년간(1998~2008) 한국노동패널 자료의 표본 탈락 시간에 대한 정보를 사용하여 생명표방법과 Cox 비례위험모형으로 표본 탈락에 영향을 주는 요인을 분석하였다. In panel studies in which the same respondents are interviewed repeatedly over the long term, panel attrition may cause the problems in the reliability of the result and the representativeness of the sample in panel study. In this article, we explore the risk factors of sample attrition in the first 11 waves of the Korean Labor and Income Panel Study (KLIPS) data covering the years 1998-2008, for which the survival analysis techniques such as life-table method and Cox proportional hazard model based on the time to the attrition of each respondent as the survival time of the respondent are applied.
무증상안의 형광안저촬영에서 관찰되는 주변부망막의 혈관성 형광누출
이상협,신용운,이병로,고명규,Sang Hyup Lee,Yong Un Shin,Byung Ro Lee,Myung Kyoo Ko 대한안과학회 2014 대한안과학회지 Vol.55 No.7
<b>Purpose:</b> To report peripheral vascular retinal leakage findings of asymptomatic eyes based on fluorescein angiography, and investigate the associated factors. <b>Methods:</b> Data were collected retrospectively from 47 subjects (94 eyes) and the peripheral leakage results based on fluorescein angiography were analyzed. The relationship between peripheral leakage findings and other factors including- arm-retinal circulation time (ARCT) and venous filling time (VFT), refractive error, age, hypertension, and diabetes- was evaluated. <b>Results:</b> Ten eyes had peripheral leakage (21.3%). The mean age was 34.7 ± 7.86 years in the non-leakage group and 44.3 ± 9.63 years in the leakage group; the difference between the groups was statistically significant (<em>p</em> = 0.001). The mean spherical equivalent was -2.85 ± 2.71 diopter in the non-leakage group and -3.46 ± 3.62 diopter in the leakage group; the difference between the groups were not significant (<em>p</em> = 0.471). The mean ARCT was 10.50 ± 2.06 seconds in the non-leakage group and 11.76 ± 2.47 seconds in the leakage group; the difference between the groups was statistically significant (<em>p</em> = 0.041). The mean VFT was 9.70 ± 1.91 seconds in the non-leakage group and 10.75 ± 1.40 seconds in the leakage group; the difference between the groups was statistically significant (<em>p </em>= 0.048). <b>Conclusions:</b> Peripheral leakage can be found in asymptomatic eyes. Age, VFT, and ARCT were correlated to peripheral leakage findings based on angiography. These leakage findings were thought to be related with histological properties and physiological changes in peripheral retina. J Korean Ophthalmol Soc 2014;55(7):1017-1023
HDDR 반응시 수소화 반응이 Nd-Fe-B계 분말의 미세조직과 자기적 특성에 미치는 영향
이상협,유지훈,김양도,Lee, S.H.,Yu, J.H.,Kim, Y.D. 한국분말야금학회 2011 한국분말재료학회지 (KPMI) Vol.18 No.5
The HDDR(hydrogenation-disproportionation-desorption-recombination) process can be used as an effective way of converting no coercivity Nd-Fe-B material, with a coarse $Nd_2Fe_{14}B$ grain structure to a highly coercive one with a fine grain. Careful control of the HDDR process can lead to an anisotropic $Nd_2Fe_{14}B$ without any post aligning process. In this study, the effect of hydrogen gas input at various temperature in range of $200{\sim}500^{\circ}C$ of hydrogenation stage (named Modified-solid HDDR, MS-HDDR) on the magnetic properties has been investigated. The powder from the modified-solid HDDR process exhibits Br of 11.7 kG and iHc of 10.7 kOe, which are superior to those of the powder prepared using the normal HDDR process.
이상협,김태임,정소향,정재림,정성근,김응권,Sang Hyup Lee,Tae-im Kim,So Hyang Chung,Jae Lim Chung,Sung Kun Chung,Eung Kweon Kim 대한안과학회 2007 대한안과학회지 Vol.48 No.3
Purpose: We report a case of keratitis of Stenotrophomonas maltophilia and Coagulase negative Staphylococcus in a recurrent corneal erosion patient. Methods: A 29-year-old female patient was referred to our clinic for an intractable corneal ulcer in her left eye. Results: Her best corrected visual acuity in her left eye was 10/400 and the cornea showed a 2×2 mm corneal infiltration at the 6 o’clock position along with endothelial plaque. Initially, 5% cefazolin, 1.4% tobramycin, 3.3% vancomycin, and 0.125% amphotericin were administered every 2 hours, and Natacyn? was administered every 4 hours, but corneal infiltration was still aggravated. After nine days of medical treatment, the advancement of the conjunctival flap was performed. The lesion had not improved, and corneal scrape and culture were repeated. Stenotrophomonas maltophilia and Coagulase negative Staphylococcus were identified. Treatment with clindamycin and Cravit?, to which isolated organisms are susceptible, was started, and the lesion improved. During the treatment, her right eye showed a painful epithelial defect in the morning, and a few days later recurrent corneal epithelial bullae developed in her left eye. She was diagnosed with recurrent corneal erosion in both eyes. The infection lesion improved by using 2% clindamycin and Cravit?, but the corneal bullae were not controlled, and therefore all eyedrops gradually tapered. After the cessation of eyedrops, corneal epithelial bullae disappeared. When she visited our clinic 12 days after discharge, her vision was 20/30 and her corneal lesion had improved completely.