LUTS/BPH(구연) Oral Session4 / LUTS (Ⅰ) (O-039) Rm.203 10월 30일(수) 14:00-15:00 전립선 홀뮴 레이저 수술 이후 발생하는 역행성 사정 방지를 위한 인자들은 무엇인가 부산대학교 의과대학 비뇨기과학 교실 박시균, 이권경, 강병진, 박지훈, 김현우, 신동길, 이정주 Aims of Study - The Aims of study is to identify the factors that contribute to avoid retrograde ejaculation(RE) following HoLEP in BPH patients. Materials and Methods - Total 93 BPH patients who underwent HoLEP between October 2014 and September 2016 were included. HoLEP was performed by preserving verumontal hood, bladder neck, and apex of the adenoma. Dermographic data of the patients such as age, IPSS, quality of life (QoL) score, prostate volume, and PSA along with perioperative paramaters such as hospitalization time, time to catheter removal, enucleation time, morcellation time and weight of resected prostate were collected and compared between the patients with or without RE. Logistic regression analysis and receiver operating characteristic analysis were conducted by using the collected data to identify the factors that contribute to avoid RE following HoLEP. Results - Among the 93 patients, 36 and 57 patients presented orthostatic ejaculation and RE after HoLEP. Univariable analysis presented that PSA (p = 0.04) and resected volume (p = 0.03) were associated with RE (Tables 1 and 2). In multivariable analysis, resected volume was the only variable which was associated with RE (Table 3, p = 0.02; OR: 0.88; 95%CI: 0.80–0.98). Additionally the cut-off value of resected volume (area under the ROC curve = 0.655) was 5.5g with a sensitivity of 0.63 and a specificity of 0.65 for the avoidance of RE after HoLEP (Fig 1). Conclusions - Resected volume after HoLEP is a significant perioperative factor in the avoidance of RE after HoLEP. keywords : BPH, HoLEP, Retrograde ejaculation