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복강경 근치적 방광적출술과 개복 근치적 방광적출술의 단기 수술 성적 비교
정재용,정병창,서성일 대한비뇨의학회 2009 Investigative and Clinical Urology Vol.50 No.11
Purpose: We analyzed the efficacy and safety of laparoscopic radical cystectomy (LRC) compared with open radical cystectomy (ORC). Materials and Methods: Between November 2007 and April 2009, we performed LRC to treat bladder cancer in 23 patients and ORC in 64 patients. Data including the patients’ clinical characteristics, peri-operative parameters, clinical outcomes, and oncologic outcomes were collected retrospectively and analyzed by use of the Mann-Whitney U test and chi-square test. Results: There were no significant differences in demographic data between the two groups. Operative time was longer (595.2 min vs. 453.1 min; p<0.01) in the LRC group but blood loss was less (634.8 ml vs. 1,415.9 ml; p<0.01) and fewer transfusions were required (13.0% vs. 50.0%; p=0.002) in the LRC group. Days to oral intake (5.7 days vs. 7.3 days; p<0.01), days to drain removal (10.9 days vs. 13.9 days; p=0.014), and length of hospital stay (15.2 days vs. 22.3 days; p<0.01) were shorter in the LRC group. Postoperative complications occurred in 4 cases in the LRC group and 28 cases in the ORC group (17.4% vs. 43.8%, p<0.01). There were no cases with a positive surgical margin in the LRC group and 3 cases in the ORC group. There was no significant difference in the number of lymph nodes excised (17.4 vs. 19.6; p=0.132) between groups. Conclusions: These short-term clinical and oncological results suggest that LRC is a safe and effective method for the treatment of invasive bladder cancer. Purpose: We analyzed the efficacy and safety of laparoscopic radical cystectomy (LRC) compared with open radical cystectomy (ORC). Materials and Methods: Between November 2007 and April 2009, we performed LRC to treat bladder cancer in 23 patients and ORC in 64 patients. Data including the patients’ clinical characteristics, peri-operative parameters, clinical outcomes, and oncologic outcomes were collected retrospectively and analyzed by use of the Mann-Whitney U test and chi-square test. Results: There were no significant differences in demographic data between the two groups. Operative time was longer (595.2 min vs. 453.1 min; p<0.01) in the LRC group but blood loss was less (634.8 ml vs. 1,415.9 ml; p<0.01) and fewer transfusions were required (13.0% vs. 50.0%; p=0.002) in the LRC group. Days to oral intake (5.7 days vs. 7.3 days; p<0.01), days to drain removal (10.9 days vs. 13.9 days; p=0.014), and length of hospital stay (15.2 days vs. 22.3 days; p<0.01) were shorter in the LRC group. Postoperative complications occurred in 4 cases in the LRC group and 28 cases in the ORC group (17.4% vs. 43.8%, p<0.01). There were no cases with a positive surgical margin in the LRC group and 3 cases in the ORC group. There was no significant difference in the number of lymph nodes excised (17.4 vs. 19.6; p=0.132) between groups. Conclusions: These short-term clinical and oncological results suggest that LRC is a safe and effective method for the treatment of invasive bladder cancer.
정재용,이창희,김철승,박성현 해양환경안전학회 2010 해양환경안전학회 학술발표대회 논문집 Vol.2010 No.04
경인 아라뱃길 갑문 운영에 관한 규칙은 인천항 갑문 통항안전 규칙, 5대호 수로 통항규칙에서 갑문의 운영에 관한 사항, KIEL 운하의 규정 중 갑문 운영에 관한 사항, 파나마 운하의 갑문 운영에 관한 규정 등을 기준으로 기본 항목을 선정하여 하여 경인아 라뱃길 갑문운영세칙을 작성하였다. 그 내용은 운영의 목적, 적용범위, 용어의 정의, 규칙 및 관제지시 준수의무, 선장 등 사고 방지의 무. 갑문 통과 선박 준비사항 갑문 접근 한계, 갑문 통항제한, 갑문 시설물 손상에 대한 배상 및 갑문 통행제한 및 벌칙 등 총 26조로 구성하였다.
정재용,윤대근,김철승 해양환경안전학회 2010 海洋環境安全學會誌 Vol.16 No.2
본 연구에서는 울산항 인근해역에 대한 자연환경, 해양사고, 해상교통량 및 해상교통흐름 관측, 어업현황 등을 조사 분석하고, 전문가 및 이용자에 대한 설문조사를 실시하여 개선안을 도출하였다. 본 연구는 전문가 및 사용자의 설문조사 실행을 통한 항해위험 필수요소, 개선계획 및 충돌위험 필수요소를 제시하였다. 본 연구의 결과로서 보다 효율적인 항로를 도출하였다. This study examined environmental condition, marine accidental data, marine traffic capacity and traffic flow, and fisheries zone status near Ulsan approaching water area. A questionnaire survey of marine traffic system was conducted on experts and users, and new plan was proposed. On the basis of the responses of experts and users to questionnaire, the essential factor of navigation danger and the essential factor of collision risk as well as the improvement plans were proposed. More efficient navigational fairway was set up through this study.