Advantages of Robot-Assisted Laparoscopic Radical Prostatectomy in Obese Patients: Comparison with the Open Procedure

배재준,최석환,권태균,김태환 대한비뇨의학회 2012 Investigative and Clinical Urology Vol.53 No.8

Purpose: Obesity has been suggested as a risk factor for worse perioperative outcomes, especially in radical prostatectomy, in several studies. However, the impact of obesity on perioperative outcomes has not yet been well elucidated for robot-assisted laparoscopic radical prostatectomy (RALP). We evaluated whether obesity had an adverse effect on outcomes following RALP compared with retropubic radical prostatectomy (RRP). Materials and Methods: From April 2008 to May 2011, 181 patients underwent radical prostatectomy (RALP, 111; RRP, 70). These patients were subdivided into two groups according to body mass index (BMI): the nonobese group (BMI, 25 kg/m2 or less) and the obese group (BMI, greater than 25 kg/m2). Perioperative outcomes in RALP and RRP were retrospectively compared between the two groups. Results: In RRP, patients in the obese group (n=20) showed greater blood loss and a higher complication rate than did those in the nonobese group (n=50). However, in RALP, no statistically significant differences in perioperative outcomes were observed between the obese (n=37) and the nonobese (n=74) groups. RALP showed less blood loss and a lower complication rate in both the obese and nonobese groups than did RRP. Conclusions: RALP is thought to be a more effective and safer procedure in obese patients compared with traditional open radical prostatectomy. In the management of obese patients with localized prostate cancer, RALP should be considered as a primary choice for treatment. Purpose: Obesity has been suggested as a risk factor for worse perioperative outcomes, especially in radical prostatectomy, in several studies. However, the impact of obesity on perioperative outcomes has not yet been well elucidated for robot-assisted laparoscopic radical prostatectomy (RALP). We evaluated whether obesity had an adverse effect on outcomes following RALP compared with retropubic radical prostatectomy (RRP). Materials and Methods: From April 2008 to May 2011, 181 patients underwent radical prostatectomy (RALP, 111; RRP, 70). These patients were subdivided into two groups according to body mass index (BMI): the nonobese group (BMI, 25 kg/m2 or less) and the obese group (BMI, greater than 25 kg/m2). Perioperative outcomes in RALP and RRP were retrospectively compared between the two groups. Results: In RRP, patients in the obese group (n=20) showed greater blood loss and a higher complication rate than did those in the nonobese group (n=50). However, in RALP, no statistically significant differences in perioperative outcomes were observed between the obese (n=37) and the nonobese (n=74) groups. RALP showed less blood loss and a lower complication rate in both the obese and nonobese groups than did RRP. Conclusions: RALP is thought to be a more effective and safer procedure in obese patients compared with traditional open radical prostatectomy. In the management of obese patients with localized prostate cancer, RALP should be considered as a primary choice for treatment.

공유잡종재산의 효율적 관리 - 서울시를 중심으로 -

배재준 한국자치발전연구원 1999 자치발전 Vol.1999 No.6

Long-Term Outcomes of Retractile Testis

배재준,김범수,정성광 대한비뇨의학회 2012 Investigative and Clinical Urology Vol.53 No.9

Purpose: Retractile testis is considered to be a variant of normal testis in prepubertal boys. There is no agreed-upon management of retractile testis. The aim of this study was to provide data on the long-term outcomes of patients with retractile testis. Materials and Methods: This study retrospectively reviewed the medical record of 43 boys who were referred for suspected undescended or retractile testis and were finally diagnosed with retractile testis between January 2001 and December 2008. All boys were biannually examined by a pediatric urologist to evaluate the presence of retractile, descended, or undescended testis and testicular volume. Results: Of 43 boys, there were 22 boys with unilateral retractile testis (51.1%) and 21 boys with bilateral retractile testis (48.9%). Their mean age was 3.0±2.7 years and the follow-up duration was 4.4±1.7 years. Of 64 retractile testes, 29 (45.3%) succeeded in descending, 26 (40.6%) remained retractile, and 9 (14.1%) became undescended testis or of a decreased size requiring orchiopexy. The mean initial diagnostic age of the patients who underwent orchiopexy was 1.3±0.9 years; meanwhile, the mean initial diagnostic age of those who went on to have normal testis was 4.3±3.3 years (p=0.009). The mean follow-up duration was 3.6±1.5 years in the orchiopexy group, 4.0±1.4 years in the descended testis group, and 5.1±1.8 years in group with remaining retractile testis. Conclusions: Retractile testis has a risk of requiring orchiopexy. The risk is higher in the population diagnosed at a younger age. Boys with retractile testis should be observed periodically until the testis is descended in the normal position. Purpose: Retractile testis is considered to be a variant of normal testis in prepubertal boys. There is no agreed-upon management of retractile testis. The aim of this study was to provide data on the long-term outcomes of patients with retractile testis. Materials and Methods: This study retrospectively reviewed the medical record of 43 boys who were referred for suspected undescended or retractile testis and were finally diagnosed with retractile testis between January 2001 and December 2008. All boys were biannually examined by a pediatric urologist to evaluate the presence of retractile, descended, or undescended testis and testicular volume. Results: Of 43 boys, there were 22 boys with unilateral retractile testis (51.1%) and 21 boys with bilateral retractile testis (48.9%). Their mean age was 3.0±2.7 years and the follow-up duration was 4.4±1.7 years. Of 64 retractile testes, 29 (45.3%) succeeded in descending, 26 (40.6%) remained retractile, and 9 (14.1%) became undescended testis or of a decreased size requiring orchiopexy. The mean initial diagnostic age of the patients who underwent orchiopexy was 1.3±0.9 years; meanwhile, the mean initial diagnostic age of those who went on to have normal testis was 4.3±3.3 years (p=0.009). The mean follow-up duration was 3.6±1.5 years in the orchiopexy group, 4.0±1.4 years in the descended testis group, and 5.1±1.8 years in group with remaining retractile testis. Conclusions: Retractile testis has a risk of requiring orchiopexy. The risk is higher in the population diagnosed at a younger age. Boys with retractile testis should be observed periodically until the testis is descended in the normal position.

Advantages of Robot-Assisted Laparoscopic Radical Prostatectomy in Obese Patients: Comparison with the Open Procedure

배재준,최석환,권태균,김태환 대한비뇨의학회 2013 Investigative and Clinical Urology Vol.54 No.2

Purpose Obesity has been suggested as a risk factor for worse perioperative outcomes, especially in radical prostatectomy, in several studies. However, the impact of obesity on perioperative outcomes has not yet been well elucidated for robot-assisted laparoscopic radical prostatectomy (RALP). We evaluated whether obesity had an adverse effect on outcomes following RALP compared with retropubic radical prostatectomy (RRP). Materials and Methods From April 2008 to May 2011, 181 patients underwent radical prostatectomy (RALP, 111; RRP, 70). These patients were subdivided into two groups according to body mass index (BMI): the nonobese group (BMI, 25 kg/m2 or less) and the obese group (BMI, greater than 25 kg/m2). Perioperative outcomes in RALP and RRP were retrospectively compared between the two groups. Results In RRP, patients in the obese group (n=20) showed greater blood loss and a higher complication rate than did those in the nonobese group (n=50). However, in RALP, no statistically significant differences in perioperative outcomes were observed between the obese (n=37) and the nonobese (n=74) groups. RALP showed less blood loss and a lower complication rate in both the obese and nonobese groups than did RRP. Conclusions RALP is thought to be a more effective and safer procedure in obese patients compared with traditional open radical prostatectomy. In the management of obese patients with localized prostate cancer, RALP should be considered as a primary choice for treatment.

S-151 : 만성 췌장염 환자에서 췌관 내 파열된 플라스틱 스텐트의 성공적인 제거 1예

배재준,이용국,박정배,서정일 대한내과학회 2013 대한내과학회 추계학술대회 Vol.2013 No.1

서론: 내시경적 췌관 스텐트 삽입술은 만성 췌장염 치료의 한 방법으로 췌관의 압력을 줄이고 췌액의 흐름을 원활하게 하기 위해 사용할 수있다. 스텐트 중 플라스틱 스텐트는 시술자가 다루기 쉽고 합병증이 적으며, 합병증이 발생할 경우 쉽게 제거할 수 있어 널리 사용되고 있다. 하지만 플라스틱 스텐트가 파열되어 조각의 일부가 췌관에 남을 경우 심각한 문제를 야기시킬 수 있다. 저자 등은 췌관 내 파열된 플라스틱스텐트를 기존의 내시경적 역행성 담췌관 조영술로 도구로 제거에 성공한 1예에 대해 보고하는 바이다. 증례보고: 60세 남자 환자로 수년전부터 시작된 간헐적인 복부 통증을 주소로 내원하였다. 수년 전 당뇨 진단 받았고 만성 췌장염으로 수차례 치료받은 적이 있으며 수년간 매일 술을 마셔온 음주력 있었다. 내원 당시 생체징후는 안정적이었고 혈액 검사상 amylase/ lipase 152/412 U/L로 상승된 소견을 보이고 있었다. 복부컴퓨터단층촬영상 원위부 심한 췌관 협착 의심소견 보였고 이는 환자에 만성적이고 반복적 통증의 원인으로 생각되었다. 진단및 치료을 위해 내시경적 역행성 췌담관 조영술을 시행하였고 감압을 위해 췌관 내 플라스틱 스텐트를 삽입하였다. 이후 환자는 증상호전을 보였고 3주 뒤 내시경적 스텐트 제거술을 시행하였으나 원위부 췌관 내 심한 협착 때문에 제거도중 스텐트 일부가 남은 채로 파열되었다. 췌관 내 스텐트가 파열될 경우 파열된 조각에 의한 췌관 모양 변화, 재협착, 감염, 천공, 출혈 등의 심각한 문제가 야기될 수 있어 환자에게 치명적이거나 응급 수술을 요하게 된다. 3일 뒤 췌관 입구 부위의 시야를 확보하기 위해 유두 절개술을 시행한 후 췌관 내 바스켓을 삽입후 수차례 시도 후 제거에 성공하였다. 시술 후 시행한 조영술 상 남아있는 스텐트 조각이 없음을 확인 하였다.

어제는 나아진 오늘과 같다

배재준(Jae-Joon Bae) 한국콘크리트학회 2013 콘크리트학회지 Vol.25 No.1

마인크래프트를 활용한 메타버스 캠퍼스

배재준(jae-jun Bae),김민섭(min-seop Kim),윤태상(tae-sang Yun),석진훈(jin-hoon Seok),김현우(Hyun-Woo kim),박산하(san-ha Park),박준호(Joon-Ho Park) 한국컴퓨터정보학회 2023 한국컴퓨터정보학회 학술발표논문집 Vol.31 No.2

단거리 출발유형별 반응·동작시간 비교 분석 : 국민학생을 중심으로

裵在濬 한국교원대학교 학교체육연구소 1993 학교체육연구소지 Vol.1 No.1

고강도 강재를 적용한 강합성 중공교각의 축방향 정적 거동과 구속압력계수

배재준(Bae, Jae Joon),이재훈(Lee, Jae Hoon),최진호(Choi, Jin Ho),정현우(Jeong Hyun Woo),김진국(Kim, Jin Kook) 대한토목학회 2012 대한토목학회 학술대회 Vol.2012 No.10

유한요소기반 다중스케일 연성파손모사 기법을 이용한 원주방향 균열이 존재하는 탄소강 실배관의 파손예측 및 검증

한재준(Jae-Jun Han),배경동(Kyung-Dong Bae),김윤재(Yun-Jae Kim),김종현(Jong-Hyun Kim),김낙현(Nak-Hyun Kim) 대한기계학회 2014 大韓機械學會論文集A Vol.38 No.7

본 논문은 유한요소 기반 다중스케일 연성파손모사 기법을 이용하여 결함이 존재하는 실배관의 파괴거동을 예측한다. 수정응력 파괴변형률 모델을 손상기준으로 선정하고 유한요소 손상해석을 통해 균열진전을 모사한다. 기준식의 결정에는 인장시험과 파괴인성시험 결과만이 요구되며 온도 288oC SA333 Gr. 6 탄소강에 적용하여 결과를 제시하였다. 요소크기-의존성 임계손상모델을 도입하여 손상해석의 수치해석적인 불안정성을 개선하였다. 본 연구에서 제안하는 가상시험법의 검증을 위해 미국 바텔연구소에서 수행한 실배관 실험결과와 예측결과를 비교한다. This paper describes multi-scale based ductile fracture simulation using finite element (FE) damage analysis. The maximum and crack initiation loads of cracked components were predicted using proposed virtual testing method. To apply the local approach criteria for ductile fracture, stress-modified fracture strain model was adopted as the damage criteria with modified calibration technique that only requires tensile and fracture toughness test data. Element-size-dependent critical damage model is also introduced to apply the proposed ductile fracture simulation to large-scale components. The results of the simulation were compared with those of the tests on SA333 Gr. 6 full-scale pipes at 288oC, performed by the Battelle Memorial Institute.