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보크트-고야나기-하라다 병 환자에서 시행한 유리체강내 덱사메타손 임플란트 삽입술 1예
김선도(Seondo Kim),이은경(Eun Kyoung Lee) 대한안과학회 2018 대한안과학회지 Vol.59 No.2
Purpose: To report a case of Vogt-Koyanagi-Harada (VKH) disease with chronic recurrence, which was treated with intravitreal dexamethasone implantation. Case summary: A 39-year-old female presented with decreased visual acuities in both eyes accompanied by headaches and tinnitus the previous week. On fundus examination and optical coherence tomography, multiple serous retinal detachments with subretinal septa were observed in both eyes, and she was diagnosed with VKH disease. After undergoing high dose intravenous steroid therapy at another hospital, she was treated with oral prednisolone and immunosuppressant drugs. However, she showed frequent recurrences, and also complained of side effects from prolonged systemic steroids. We then performed intravitreal injections of dexamethasone implants in both eyes at 3-week intervals. One month following the injections, the inflammations in the anterior chamber and vitreous opacities were improved. Until the last visit at 6 months after the injection, there was no significant recurrence of inflammation, although oral prednisolone had been tapered. Conclusions: In VKH disease, intravitreal dexamethasone implantation may be an effective treatment option if chronic recurrence occurs, despite systemic steroid and immunosuppressant therapy or sustained treatment being difficult to maintain because of side effects.
점안 국소 마취와 감시 마취 관리하의 백내장 수술 후 통증 비교
김선도(Seon Do Kim),정진호(Jin Ho Jeong) 대한안과학회 2015 대한안과학회지 Vol.56 No.5
목적: 백내장 수술 시 점안 국소 마취만으로 수술을 시행한 경우와 감시 마취 관리하에서 점안 국소 마취를 병용하여 수술을 시행한 경우에서 수술 후 통증을 비교해 보고자 하였다. 대상과 방법: 백내장 수술을 시행하기로 예정된 243명을 대상으로 마취 방법에 따른 술후 통증 정도에 대한 전향적 비교연구를 시행하였으며, 환자 개인의 선호에 따라 국소 점안마취 또는 fentanyl과 midazolam의 정맥 마취를 사용한 감시 마취 관리하에서 점안마취 방법을 선택하였다. 마취 방법에 따라 대상안을 두 군으로 분류하였으며, 수술 당일 불안 척도를 측정하였다. 수술 동안의 혈압, 심박수를 측정하였고 수술 직후, 술후 2시간, 6시간, 다음 날의 통증을 측정하였다. 결과: 연구를 완료한 237명의 환자 가운데, 183명은 점안마취를 선택하였고 54명은 감시 마취 관리를 선택하였다. 통증 점수는 점안마취군과 감시 마취 관리군에서 각각 수술 직후 0.50, 0.22 (p=0.060), 술후 2시간 0.58, 0.16 (p=0.019), 술후 6시간 0.29, 0.06 (p=0.040), 술후 다음 날 0.12, 0.09 (p=0.985)점으로, 술후 2시간 및 6시간에 통계적으로 유의한 차이가 관찰되었다. 수술 당일 측정한 불안 척도는 점안마취군에서 10.50이었고, 감시 마취 관리군에서는 11.41이었다(p=0.280). 수술 시작 시 측정한 수축기 혈압은 점안마취군에서 140.6 mmHg였고, 감시 마취 관리군에서 158.2 mmHg였다. 결론: 백내장 수술 시 감시 마취 관리는 국소 점안마취만으로 수술을 진행하는 것보다 수술 후 통증의 경감에 효과가 있었으며, 수술 도중 정맥 마취제에 의한 일시적 혈압 상승의 가능성을 주의하여야 한다. <대한안과학회지 2015;56(5):715-720> Purpose: To compare pain levels in cataract surgery under topical anesthesia only and topical anesthesia under monitored an-esthesia care. Methods: We recruited 243 patients who were scheduled to undergo cataract surgery under topical anesthesia only or topical anesthesia with monitored anesthesia care (MAC) using fentanyl and midazolam. Anesthesia methods were selected based on the patient's preference. All patients completed an anxiety and information scale survey preoperatively. Vital signs during the op-erations were recorded. A 0-to-10 visual analog scale pain score survey was conducted immediately and at 2 hours, 6 hours, and 1 day after surgery. Results: Of the 237 patients who completed the study, 183 patients selected topical anesthesia, and 54 patients selected MAC. Mean pain scores according to the aforementioned time points after surgery were 0.50, 0.58, 0.29, and 0.12 in the topical anes-thesia group, and 0.22, 0.16, 0.06, and 0.09 in the MAC group, respectively. The differences in pain score between the two groups was statistically significant at 2 hours (p = 0.019) and 6 hours (p = 0.040) after surgery. The mean patient anxiety score for anesthesia was 10.50 in the topical anesthesia group and 11.41 in the MAC group (p = 0.280). Mean systolic blood pressure at the start of surgery was 140.6 mm Hg in the topical anesthesia group, and 158.2 mmHg in the MAC group. Conclusions: Monitored anesthesia care consistently resulted in less pain throughout the post-operative period. However, tran-sient systolic blood pressure should be carefully monitored for a rise related to intravenous anesthetics. J Korean Ophthalmol Soc 2015;56(5):715-720
레이저각막굴절교정수술의 임상적 유용성과 안전성에 대한 핫 이슈
김선도(Seon Do Kim),정진호(Jin Ho Jeong) 대한검안학회 2015 Annals of optometry and contact lens Vol.14 No.1
We performed a literature search on the efficacy and safety of laser corneal refractive surgery and postoperative patients satisfaction for long term periods. The patient had a high percentage of good visual outcomes, and the overall rate of satisfactory patients was ranged from 91% to 97%. Results of clinical studies confirmed that the corneal surface ablation using Excimer laser such as laser assisted in situ keratomileusis (LASIK), laser epithelial keratomileusis (LASEK) obtained excellent postoperative visual efficacy contained with safety and stability. The percentages of complication related with making flap in Korea was less than those of foreign other countries. Before taking corneal refractive surgeries with Excimer laser, meticulous preoperative examination and detailed explanation are needed. Patients also should be aware of possible post-operative discomforts or complications like halo, glare, and dry eye symptoms.
김선도(Seondo Kim),김영국(Youngkook Kim),이선호(Sunho Lee),이혜진(Hyejin Lee),차동민(Dongmin Cha),정진호(Jinho Jeong) 대한검안학회 2015 Annals of optometry and contact lens Vol.14 No.4
Purpose: We report a case of chemical burn of cornea by a mosquito repellent that looks similar with commonly available eyedrop. Case summary: A 75-year-old female presented to the ophthalmology clinic with complaint of ocular pain in the right eye. She mistakenly applied a mosquito repellent, which consisted of citronella oil looking like an eyedrop. The acidity of mosquito repellent was measured as pH 3.9. Her visual acuity of the right eye was 0.02. 8 mm sized corneal epithelial defect and gelatinous opaque lesion over central cornea was observed. Therapeutic contact lens was applied for 1 week, and she was treated with 0.5% levofloxacine, 1% prednisolone, autologous serum, and artificial tears. After 1 month, we confirmed that corneal recovery was accomplished from the chemical burn. Conclusions: Mosquito repellent using container, which is similar with commonly available eyedrop, may cause chemical burn of cornea by mistake. Proper safety education and better modification of container would be necessary.
김선도 ( Seon Do Kim ),정제훈 ( Je Hoon Jeong ),한찬훈 ( Chan Hoon Haan ) 충북대학교 건설기술연구소 2015 建設技術論文集 Vol.34 No.2
건축물에 발전에 따라서 주거환경은 도시화, 산업화로 인한 열섬현상과 공기질 저하, 교통 소음 및 재해 환경요염 및 녹지면적의 절대적인 부족 등의 다양한 문제로 병들어 있다. 특히 소음으로 인한 문제는 쾌적한 주거환경을 요구하는 거주자에게 상당한 불쾌감과 스트레스를 주고 있다. 이러한 현상들은 삶의 질이 윤택해짐에 따라서 불쾌감의 정도가 끊임없이 올라가고 있다. 때문에 소음에 관한 규정이 생기고, 이에 따라서 건축은 변화하고 있는 시점이다. 소음 및 진동에 관한 민원사항의 대부분은 교통 소음에 관한 것으로써 이를 위하여 주택가, 고속도로 주면, 공장 지대, 학교 주변 등을 중심으로 방음벽의 설치가 꾸준히 증가하는 추세이다. 하지만 이러한 방음벽 설치의 확대가 모든 소음을 저감하는 것은 아니다. 분명 방음벽은 도로교통 소음의 저감에 효과를 보기는 하지만 소음저감량은 이론상 최대 15~20dB(A)까지로 제한적일 수밖에 없다. 하지만 이러한 건축물의 증가함에 따라서 사람들은 쾌적성을 요구하고 있다. 방음벽의 소음저감량을 높이기 위해서는 방음벽의 높이를 증가시키는 방법이 있지만 법규에 따라서는 높이에 한계가 있다. 이러한 한계를 극복하기 위해서는 방음벽 상부구조물을 설치하여서 소음저감량을 높여야 한다. 방음벽 상부구조물을 설치하면서 형태에 따라서 삽입손실량을 비교하고 최적의 형태의 방음벽 상부구조물을 찾고자 하였다. Noise barriers are widely used in and around the residential area. However, the noise reduction efficiency is not satisfied with the comfort of residents. In order to increase the noise reduction of the noise barriers, various upper structures have been introduced and used nowadays. The present study investigates the insertion losses of the noise barriers with different shapes of upper structure. Seven different upper structures were designed and applied to a noise barrier under same conditions. Computer simulations were undertaken to calculate the insertion losses using 3-D models of noise barriers. As a result, It was found that insertion loss of noise barriers with Y and T -shaped upper structures is greater than those with ㄱ and L-shaped upper structures. It is because the Y and T-shaped upper structure overgrow along the axis of the noise sources and measurement points while ㄱ and L -shaped upper structures stretch to one side of noise barrier.
에어분사구 설치에 따른 폴리우레아 도막 방수·방식재의 비산 발생 저감에 관한 연구
김선도 ( Kim Sun-do ),박완구 ( Park Wan-goo ),박진상 ( Park Jin-sang ),조일규 ( Cho Il-kyu ),김병일 ( Kim Byoung-il ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
This nozzle has an air flow generation mechanism in the air groove of the attachment cell part located at the end of the injection nozzle. Since the air grooves also function as an air curtain, the airborne particles generated when the waterproof material is sprayed is effectively blocked. In the past, spraying of the waterproof material through the high pressure was possible, but this technology allows stable injection due to the static agitation method, and various problems caused by particle generation has been (damages to neighboring areas, economic loss, etc.) minimized.
실외 자율주행 로봇을 위한 다수의 동적 장애물 탐지 및 선속도 기반 장애물 회피기법 개발
김선도(Sun-do Kim),노치원(Chi-Won Roh),강연식(Yeonsik Kang),강성철(Sung-chul Kang),송재복(Jaebok Song) 제어로봇시스템학회 2008 제어·로봇·시스템학회 논문지 Vol.14 No.7
In this paper, we used a laser range finder (LRF) to detect both the static and dynamic obstacles for the safe navigation of a mobile robot. LRF sensor measurements containing the information of obstacle’s geometry are first processed to extract the characteristic points of the obstacle in the sensor field of view. Then the dynamic states of the characteristic points are approximated using kinematic model, which are tracked by associating the measurements with Probability Data Association Filter. Finally, the collision avoidance algorithm is developed by using fuzzy decision making algorithm depending on the states of the obstacles tracked by the proposed obstacle tracking algorithm. The performance of the proposed algorithm is evaluated through experiments with the experimental mobile robot.