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S-500 : 복강 내 농양으로 발현한 폐흡충증 이소기생 1예
구요한,전승진,안성,정종길 대한내과학회 2013 대한내과학회 추계학술대회 Vol.2013 No.1
서론: 폐흡충증은 Paragonimus westermani에 의한 기생충 감염 질환으로 중간 숙주인 폐흡충 피낭유충에 감염된 민물 게, 가재, 새우를 섭취함으로써 감염이 된다. 폐흡충은 주로 폐에 충란을 형성하여 호흡기 증상을 일으키나 일부에서는 뇌, 척수, 간, 요로, 피하조직 등에서 이소 기생하여 다양한 증상을 일으킨다. 폐 조직 이외의 부위에서 폐흡충의 성충이 발견되는 경우는 매우 드물다. 본 증례에서는 복강 내 농양이 있는 환자에서 복강경으로 폐흡충의 성충을 관찰하여 진단, 치료하였기에 증례 보고를 한다. 증례: 53세 여자 환자로 일주일 전부터 발생한 우측 하복부 통증을 주소로 내원하였다. 간장 게장을 먹은 적이 있었고 과거력 상 고혈압과 당뇨로 투약중이고 기타 특이사항은 없었다. 내원 시 우측 상하복부의 압통이 있었으며 혈액검사상 백혈구 수 9,760/μL (호중구 46.9%, 림프구 37.1% 호산구 8.8%), 혈색소 13.9 g/dL AST 71 U/L ALT 71U/L 이외의 특이소견 없었으며, 복부 전산화 단층 촬영상 우상복부 대망의 7×2.5 cm 우측 골반강의 2.5 cm 크기의 농양이 관찰되었다. 진단적 복강경을 시행하였으며 농양을 박리하여 8 mm 크기의 살아서 움직이는 폐흡충의 성충을 발견하였다. 추후 micro-ELISA를 이용한 폐흡충 특이항체 검사 상 양성으로 나왔으며, 농양 종괴 조직검사에서 폐흡충의 충란이 확인되었다. 환자는 Praziquantel 2일간 투약을 하였으며 증상 호전 후 퇴원하였고 재발 소견은 보이지 않았다.
리액턴스의 변화를 이용한 정삼각형 마이크로스트립 패치 안테나의 대역폭 개선
이원희,이재욱,전승길,최홍주,허정,Lee, Won-Hui,Lee, Jae-Wook,Jeon, Seung-Gil,Choi, Hong-Ju,Hur, Jung 한국전자파학회 2003 한국전자파학회논문지 Vol.14 No.6
삼각형 패치 안테나에 대해 이론적인 방법과 실험을 통해 연구하였다. 삼각형 패치 안테나는 사각형 패치 안테나와 비슷한 복사 특성을 갖으나, 그 크기를 더 줄일 수 있다. 본 논문에서는 정삼각형 마이크로스트립 패치 안테나를 공동 모델을 사용하여 해석하고, 설계 하였다. 또한 대역폭 향상을 위해 커패시티브 갭과 공기층 갭을 이용하였다. 커패시티브 갭은 패치의 급전점 부근에서 사각형 모양으로 만들었고, 공기층 갭은 유전체 기판과 그라운드 사이에 삽입하여 프로브 인덕턴스를 조정하였다. 안테나 각 부분의 효과와 특성 해석을 위해 상업용 시뮬레이션 툴인 Ensemble 5.0을 사용하였다. 시뮬레이션과 실험을 통하여 삼각형 마이크로스트립 안테나의 대역폭 개선의 가능성을 발견하였다. Triangular patches have been studied, both theoretically and experimentally. We feund that provided radiation characteristics similar to those of rectangular patches, but with smaller size. In this paper, we designed an equilateral triangular microstrip patch antenna using cavity model analysis. Then, in order to improve narrow bandwidth, we add capacitive gap and air gap. Capacitive gap is located with square shape beside feeding point on the patch, and air gap is inserted between substrate dielectric and ground plane to adjust probe inductance. The analysis of characteristics and effects of each component was performed by commercial simulation tool, Ensemble 5.0. Throughout the simulation and experiment, we found the possibility of bandwidth enhancement in triangular microstrip antenna.
Gender-related outcomes in robot-assisted radical cystectomy: A multi-institutional study
진현중,심지성,권태균,김태환,전승현,이상협,강성구,남종길,김완석,정병창,오종진,이상철,이지열,홍성후,나군호,한웅규,함원식,이영구,이용성,박성열,윤영은,구자현,강석호 대한비뇨의학회 2022 Investigative and Clinical Urology Vol.63 No.1
Purpose: Robot-assisted radical cystectomy (RARC) optimizes patient recovery and has outcomes comparable with those of open surgery. This study aimed to compare the perioperative and oncologic outcomes of RARC in female and male patients. Materials and Methods: A retrospective cohort study of the Korean Robot-Assisted Radical Cystectomy Study Group database from 2007 to 2019 identified 749 patients (111 females and 638 males). Female were matched 1:1 to male by propensity score matching using a logistic regression. We compared perioperative outcomes, oncologic outcomes, and complications between the two groups. Results: The female group had comparable perioperative outcomes to the male group in terms of operation time, lymph node yield, positive surgical margin, blood transfusion rate, and hospitalization days. Complication rate and grade were not significantly different between the two groups. The most common complication was infection in female and gastrointestinal complications in male. We compared the 5-year overall, disease-specific, and recurrence-free survival of female and male: 58.2% vs. 68.0% (p=0.495), 75.7% vs. 79.3% (p=0.645), and 40.8% vs. 53.5% (p=0.913), respectively. On multivariable analysis, T stage (>T2), postoperative complications, and positive surgical margin were prognostic factors of poor outcome. Sex was not an independent predictor of the three survivals. Conclusions: The current study suggests that RARC in female has comparable perioperative and oncologic outcomes to those in male. The complication rate of RARC in female was comparable to that in male, but the type of complications differed by sex.
신동욱,이상협,김태환,윤석중,남종길,전승현,박승철,정승일,박종혁,박진성 대한암학회 2019 Cancer Research and Treatment Vol.51 No.2
Purpose Health-related quality of life (HRQOL) information related to radical prostatectomy (RP) is valuable for prostate cancer (PC) patients needing to make treatment decisions. We aimed to investigate HRQOL change in PC patients who underwent three types of RP (open, laparoscopic, or robotic) and compared their HRQOL with that of general population. Materials and Methods Patients were prospectively recruited between October 2014 and December 2015. European Organization for Research and Treatment of Cancer Quality-of-Life Questionnaire (EORTC QLQ-C30) and PC-specific module (PR25) were administered before surgery (baseline) and at postoperative 3 and 12 months. At each time point, HRQOL was compared, and a difference of 10 out of 0-100 scale was considered clinically significant. Results Among 258 screened patients, 209 (41 open, 63 laparoscopic, and 105 robotic surgeries) were included. Compared to baseline, physical, emotional, and cognitive functioning improved at 12 months. Role functioning worsened at 3 months, but recovered to baseline at 12 months. Pain, insomnia, diarrhea, and financial difficulties also significantly improved at 12 months. Most PR25 scales excluding bowel symptoms deteriorated at 3 months. Urinary symptoms and incontinence aid recovered at 12 months, whereas sexual activity and sexual function remained poor at 12 months. Clinically meaningful differences in HRQOL were not observed according to RP modalities. Compared to the general population, physical and role functioning were significantly lower at 3 months, but recovered by 12 months. Social functioning did not recover. Conclusion Most HRQOL domains showed recovery within 12 months after RP, excluding sexual functioning and social functioning. Our findings may guide patients considering surgical treatment for PC.
박진우,최선규,박승욱,전승진,조경욱,지황룡,구철,정종길 대한노인병학회 2011 Annals of geriatric medicine and research Vol.15 No.1
Intussusception is seen often in children but relatively few cases occur in adults. In many cases, the etiology of intussusception in adults is a tumor, with adenocarcinoma being the most common tumor in the small intestine. Gastro-intestinal stromal tumor (GIST) is caused by a mutation of the interstitial cells of Cajal, which controls the speed of peristalsis by being involved in the autonomic innervation between the bowel wall and the smooth muscles of the gastrointestinal tract, and is rarely a factor in adult intussusception. We reported a case of a 74-year-old male patient who came to our hospital with hematochezia and was found to have jejunal intussusception from GIST.
기생 패치를 이용한 휴대기기 내장형 DVB-H 광대역 안테나 설계
이영기(Young-Ki Lee),서동현(Dong-Hyun Seo),전승길(Seung-Gil Jeon),최재훈(Jae-Hoon Choi) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
In this paper, an internal wideband DVB-H antenna using parasitic patch is proposed. The antenna consists of rectangular patch with system ground and shorting plate. The -10 ㏈ impedance bandwidth of proposed antenna is about 530 ㎒ (470 ~ 1000 ㎒). Radiation patterns are nearly omni-directional for operating frequency. It is suitable for DVB-H application.