쉰소리로 발현한 흉부 대동맥류 1예 : Ortner씨 증후군 orther`s syndrome

장이선,진승원,박희철,박진아,윤희정,이종민,김재형 대한내과학회 2003 대한내과학회지 Vol.64 No.1

Ortner씨 증후군은 다양한 심장 질환에 이차적으로 생긴 반회 후두 신경 마비에 의한 쉰소리를 특징으로 하는 임상 질환이다. 저자들은 흉통없이 발생한 쇤소리를 주소로 내원한 환자에서 좌측 반회 후두 신경의 손상에 따른 성대 마비의 1차원적인 원인으로 대동맥궁 부위에서의 대동맥류를 진단하였기에 문헌 고찰과 더불어 보고하는 바이다. Ortner's syndrome is a clinical entity with hoarseness due to a left recurrent laryngeal nerve palsy caused by cardiac disease. It is a recognized complication of a number of conditions including, atrial septal defect, patent ductus arteriosus, primary pulmonary hypertension, Eisenmenger's syndrome and aortic aneurysm. A 71-year-old woman with a history of hypertension and diabetes complained hoarseness and hemoptysis for 3 days. Chest X-ray showed a soft tissue mass shadow in the left upper lung field and chest CT scan revealed a thoracic aortic aneurysm. We report a case of left recurrent laryngeal nerve palsy due to a huge thoracic aortic aneurysm in an old woman. (Korean J Med 64:105-108, 2003)

응급의료센터의 단기입원치료실 활용경험

최승필,박승현,정시경,박규남,김영민,김세경,이운정,이환 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Overcrowding of emergency department is a serious and growing problem at St. Mary's Hospital. This has motivated the development of short-stay unit(SSU) as an alternative ward to routine hospital admission and ED discharge. In our hospital a SSU begun to admit patients in January 6, 1997. The SSU received 247 patients from the ED during the eight month interval(January 6, 1997 to August 31, 1997). To examine the utilization of the SSU in ED, we retrospectively analyzed 247 patients admitted in SSU from the ED, and compared the average hours per patient with acute gastroenteritis spent in the ED during the 2-month intervals before(July-August 1996) and after(July-August 1997) the establishment of the SSU. The following results were obtained; 1. The total patients consist of EM 92(37.2%), GS 48(19.4%), IM 24(9.7%), PS 21(8.5%), OS 20(8.1%), OBGY 14(5.7%) and others 28(11.3%) 2. The results of EM patients admitted in SSU from ED 1) Sex ratio of male to female was 1:1.1 and the mean age was 37.3±16years 2) In diagnosis, acute gastroenteritis was 29 cases(31.5%), multiple contusion 14 cases(15.2%), drug intoxication 12 cases(13%), limb laceration 6 cases(6.5%), tendon rupture of hand 6 cases(6.5%), and others 19 cases(20.6). 3) Mean length of stay in ED was 9.18 hours. 4) Among 92 patients to the SSU, 79 patients(85.9%) were discharged, 11 patients(11.9%) formally admitted to hospital and 2 patients(2.2%) transferred to otherhospital. The mean hospital stay time of the patients admitted to SSU was 2.6 days. 3. There was a significant reduction in the average stay time spent in the ED by treat-and-releasing patients with acute gastroenteritis after the establishment of the SSU(from 14.65±9.6 to 7.52±5.4 hr/patient, p<0.001). Conclusively, the establishment of the SSU can shorten the average stay time that treat-and-releasing patients spend in the ED, and reduce the number of admitted patients waiting in the ED.

파트너십에 의한 지하철 입구 공간의 쌈지공원 설계 및 시공

김승환,강현우,손용욱,박승범,남정칠,이기철,차민준 東亞大學校 建設技術硏究所 2009 硏究論文集 Vol.32 No.2

A pocket park is valued in securing green space in downtown and improving urban view in the aspect of natural and environmental values, and it signifies a lot as the center of local residents’ community and harmony as well. Since subway exits and surroundings that have high portions in taking up street space due to lack of green space in downtown aren't made full use of, valuable pocket park place. Dangni Pocket Park of subway exits is a park completed with cooperative works and partnership by students, specialists, administrative organizations, businesses and civilian organizations, etc. without support of special budget. The study site was finally chosen to the space between exit No.1 of Dangni subway station, after analyzing the surrounding circumstances, availability and accessibility of the space among the several subway station exits of Saha, Dangni, and Hadan Station in Busan Metropolitan city. For the designing process, The Citizens organization for Million Amenity Park performed the planning and project proceeding, and 19 design drafts were proposed during the class of landscape architecture in Dong-a University. Design review panel members discussed to select the best draft in practical and authentical, and the related experts reviewed and revised to present the final design plan. The construction was conducted was performed under the cooperation between the civil, authorities, and industrial organizations, among which Saha District office managed for the waste treatment and maintenance matters. The graduates of landscape architecture department of Dong-a University and related industrial enterprises supplied landscape materials and related labors, were supported by 20 members of GPM, one of clubs of Dong-a University volunteered durig the most of construction progress, completing the Pocket Park of subway exits through partnership.

제 3형 급성 견봉-쇄골 관절 분리 환자의 수술적 치료 결과

한성호,양보규,이승림,정선욱,이동호,김민석 대한골절학회 2003 대한골절학회지 Vol.16 No.2

목적 : 본 연구를 통하여 Rockwood 제 3형 급성 견봉-쇄골 관절 분리 환자에서 Phemister 술식과 modified Phemister 술식의 치료 결과를 비교하고자 한다. 대상 및 방법 : 1992년 2월부터 2001년 8월까지 제 3형 급성 견봉-쇄골 관절 분리로 수술적 치료를 받고 1년 이상 추시 가능하였던 45명, 45예의 환자를 대상으로 하였다. 평균 연령은 28.1세였으며, 남자가 42명, 여자가 3명이었다. 진단은 이학적 검사와 단순 방사선 부하 촬영법을 이용하였으며, 수상일로부터 수술적 치료까지의 평균 기간은 7.8일이었다. 술장 소견상 오구-쇄골인대 봉합술이 어려운 15예에서는 Phemister 술식을 시행하였고 (Ⅰ군), 인대 봉합이 가능한 30예에서는 modified Phemister 술식을 시행하였다(Ⅱ군). 수술 후 추시 기간은 평균 16.2개월이었고, 결과 판정은 최종 추시 때의 임상 소견과 이학적 검사 및 방사선 촬영을 통해 UCLA shoulder scoring system과 acromio-clavicular separation scoring system을 이용하였다. 결과 : 술후 합병증은 Ⅱ군에만 표재성 감염이 2예, K-강선 이주가 1예에서 발생하였다. 최종 추시상 전예에서 동통, 관절 운동 범위의 제한은 없었고 , Ⅱ군에서만 방사선 촬영상 2예에서 아탈구가 관찰되었다. UCLA shoulder scoring system은 Ⅱ군에서 우수 93.3%, 양호 6.7%였고, acromio-clavicular shoulder scoring system은 Ⅱ군에서 우수 90%, 양호 10%였다. 결론 : 활동적인 연령에서 발생한 제 3형 급성 견봉-쇄골 관절 손상의 환자에서 Phemister 술식만으로도 좋은 결과를 보일 수 있을 것으로 사료된다. Purpose : The purpose of this study is to compare the Phemister technique with the modified Phemister technique for the patients with Rockwood type 3, acromio-clavicular separation. Materials and Methods : The 45 cases of 45 patients received surgical treatment for Rockwood type 3, acute acromio-clavicular separation in our hospital from Feb. 1992 to Aug. 2001 later with the follow-up study were selected as subjects. The average ages were 28.1 years old, male and female were 42, 3 persons, respectively. Physical examination and plain radiography were used for their diagnosis and the intervals between injury and surgical treatment were 7.8 days. In intraoperative finding, we performed Phemister technique in 15 cases according not to be able to repair coraco-clavicular ligament (groupⅠ), modified Phemister technique in 30 cases according to be able to repair that (groupⅡ). The average follow up period was 16.2 months, and the UCLA shoulder scoring system and the acromio-clavicular separation scoring system were used to obtain clinical results. Results : Only in Group Ⅱ, the complication after surgery were associated with superficial infection in two cases and K-wire migration in one case. At last follow up, there were no pain and limitation of range of motion in all cases, and two cases in Group Ⅱ were found to be subluxation in radiography. Clinical results revealed excellent was 93.3%, good was 6.7% in UCLA shoulder scoring system in both groups, and excellent was 90%, good was 10% for group Ⅱ in acromio-clavicular separation scoring system. Conclusion : The results are considered to be food with only Phemister technique in type 3, acute injury occurred in working ages.

보행속력과 동작의 부드러움과의 상관관계에 관한 연구

탁계래,한영민,최진승,이정한,임영태,전재훈,박상균,박승하,Stefanyshin Darren 한국운동역학회 2006 한국운동역학회지 Vol.16 No.1

구강외과 수술용 스텐트 기반 영상유도 수술 시스템의 개발

이우진,김대승,이원진,이삼선,최순철,허민석,허경회,김명진,이지호 대한구강악안면방사선학회 2009 Imaging Science in Dentistry Vol.39 No.3

Purpose : The purpose of this study was to develop a stent-based image guided surgery system and to apply it to oral and maxillofacial surgeries for anatomically complex sites. Materials and Methods : We devised a patient-specific stent for patient-to-image registration and navigation. Threedimensional positions of the reference probe and the tool probe were tracked by an optical camera system and the relative position of the handpiece drill tip to the reference probe was monitored continuously on the monitor of a PC. Using 8 landmarks for measuring accuracy, the spatial discrepancy between CT image coordinate and physical coordinate was calculated for testing the normality. Results : The accuracy over 8 anatomical landmarks showed an overall mean of 0.56±0.16 mm. The developed system was applied to a surgery for a vertical alveolar bone augmentation in right mandibular posterior area and possible interior alveolar nerve injury case of an impacted third molar. The developed system provided continuous monitoring of invisible anatomical structures during operation and 3D information for operation sites. The clinical challenge showed sufficient accuracy and availability of anatomically complex operation sites. Conclusion : The developed system showed sufficient accuracy and availability in oral and maxillofacial surgeries for anatomically complex sites. (Korean J Oral Maxillofac Radiol 2009; 39 : 149-56)

공정단위장치로부터의 휘발성유기화합물질의 비산 배출량 산정

박영근,문정우,고민수,박현수,차순우,이선우,홍승철,김화용,이종협 한국화학공학회 2003 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.41 No.3

공장내 설치되어 있는 수천개의 비산배출원으로부터 배출되는 VOCs의 양을 산정하기 위해서는 많은 비용과시간이 소요된다. 이러한 노력을 줄이기 위하여 전산모사방법을 이용하여 배출량을 예측하는 방법을 제시하였다. 예측된 값의 검증을 위하여 밸브, 플랜지 등의 비산배출원으로 구성되어 있는 실험장치를 고안하고 내부를 흐르는 유체의 종류 및 조건에 따른 배출량을 백포집법에 의해 샘플링하여 GC로 분석한 후, 분석된 데이터를 전산모사를 통해 얻은 결과와 비교하였다. 그 결과, 전산모사를 이용하여 밸브, 플랜지, 개방식라인으로부터 배출되는 벤젠과 톨루엔의 양을 예측할 수 있었다. Considerable effort and expense have been devoted to the estimation and acquisition of the amounts of VOCs relesed thousands of the fugitive emission sources installed in chemical processes. In order to reduce the effort required on the estimation of VOC release, a methodology using a computational fluid dynamics (CFD) was proposed. The estimated values were compared the experimental data obtained using a designed experimental apparatus that was composed of fugitive emission sources such as valves, pump, and flange. The emissions were sampling tedlar bags for a variety of volatile compounds at different pressures. The components were analyzed by a portable gas chromatograph. In conclusion, the amount of benzene and toluene released from fugitive emission sources could be successfully estimated using the CFD technique.

A Time-Based Receiver With 2-Tap Decision Feedback Equalizer for Single-Ended Mobile DRAM Interface

Yi, Il-Min,Chae, Min-Kyun,Hyun, Seok-Hun,Bae, Seung-Jun,Choi, Jung-Hwan,Jang, Seong-Jin,Kim, Byungsub,Sim, Jae-Yoon,Park, Hong-June IEEE 2018 IEEE journal of solid-state circuits Vol.53 No.1

<P>A time-based (TB) receiver (RX) with a 2-tap TB decision feedback equalizer (DFE) is proposed for mobile DRAM interface. The TB RX consists of a voltage-to-time converter (VTC), a TB DFE, and a time comparator. The VTC converts the RX input voltage to a time difference between two VTC outputs by using the difference in clock-to-Q delays between two latches with different input offset voltages. The TB DFE inserts an additional delay to one of the two VTC outputs and bypasses the other VTC output to increase the time opening. The time comparator makes a decision with the first arriving edge of the two outputs of the TB DFE. While the feedback loop delay must be less than 1 UI for proper operation in the conventional voltage-based DFE, the TB DFE allows the feedback loop delay up to 1.43 UI in this paper. A transmitter (TX) transmits a single-ended signal of 200-mV swing by using an n-over-n voltage-mode driver. The transceiver in a 65-nm CMOS process achieves a 12.5 Gb/s with a 0.8-V supply through a 15-inch FR-4 channel of 14-dB loss. The TX and RX chip consume 4.3 and 3.4 mA, respectively. The energy efficiency is 0.49 pJ/b.</P>

TIMI myocardial perfusion grade and myocardial viability assessed by FDG-PET scan after primary PCI in anterior AMI (초)

( Seung Min Yi ),( Seong Ill Woo ),( Keum Soo Park ),( Woong Gil Choi ),( Soo Hyun Kim ),( Myeong Ho Yoon ),( Hong Seok Lim ),( Seung Jea Tahk ) 대한내과학회 2008 대한내과학회 추계학술대회 Vol.2008 No.-

TIMI myocardial perfusion grade and myocardial viability assessed by FDG-PET scan after primary PCI in anterior AMI (초)

( Seung Min Yi ),( Seong Ill Woo ),( Keum Soo Park ),( Woong Gil Choi ),( Soo Hyun Kim ),( Myeong Ho Yoon ),( Hong Seok Lim ),( Seung Jea Tahk ) 대한내과학회 2008 대한내과학회지 Vol.75 No.1S