Introduction

1. No. 042 Impact of prostate size on perioperative outcomes associated with photoselective vaporization of the prostate Kellie E. West, Henry H. Woo Sydney Adventist Hospital Clinical School, University of Sydney, Sydney Posters Proudly Supported by: Introduction A high powered 180W lithium triborate(LBO) laser has recently become commercially available for photoselectivevaporization of the prostate (PVP), a surgical treatment for lower urinary tract symptoms due to benign prostatic hyperplasia. There is scarce information on the impact of this very high powered laser on perioperative outcomes in patients with differing prostate sizes. Results With increasing prostate size, there was a statistically significant increasing difference in energy utilization and operation time (p<0.01 between groups). Duration of catheterizationand POLOS was not statistically significant. The incidence of Grade 3 and above ClavienDindo adverse events and discharge home catheter free within 24 hours was not statistically significant across groups. Table 1 results refer to median (±interquartile ranges) for continuous variables and number (%) for discrete variables. Aim The objective of this study was to evaluate perioperative outcomes relative to prostate size, after PVP surgery with 180W LBO laser. Preoperative retention and use of anticoagulants were also included as preoperative factors. Methods A retrospective review of a prospectively maintained database was conducted, after institutional ethics approval. Subjects were categoriedaccording to transrectal ultrasound measurement of prostate volumes, then anticoagulation status and presence of preoperative retention. Groups were then analyzed according to perioperative measures included energy utilized, operation time, duration of catheterization, post operative length of stay (POLOS), ClavienDindo adverse events and number discharged home within 24 hours catheter free. Table 1 – Perioperative parameters according to prostate volume Conclusions Prostate volume impacts upon energy utilized with PVP surgery. Prostate volume does not influence duration of catheterization, POLOS, or the ability to be discharged catheter free within 24 hours. ClavienDindo Grade 3 or greater adverse events were low and do not appear to be influenced by prostate size. References Bachmann, A., et al., 180-W XPS GreenLight laser therapy for benign prostate hyperplasia: early safety, efficacy, and perioperative outcome after 201 procedures.Eur. Urol., 2012. 61(3): 600-7. Chung, A.S.J., et al., Photoselective vaporization of the prostate using the 180W lithium triboratelaser.ANZ J. Surg,. 2012. 82(5): 334-37.