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The Cut-off Value of Post Void Residual Urine Volume for Predicting 3-Year Surgical Outcomes after GreenLight HPS<sup>TM</sup> Laser Photoselective Vaporization of the Prostate.
MedLine Citation:
PMID:  24708361     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Purpose: A large post-void residual (PVR) has been considered to be an indicator for the need to further management. However, the threshold level of PVR has been not defined. We determined the PVR volume by using bladder voiding efficiency (BVE) that would predict surgical outcomes after GreenLight HPS<sup>TM</sup> laser photoselective vaporization of the prostate (HPS-PVP). Methods: A total of 193 patients underwent HPS-PVP were divided into two groups based on BVE: >75% (group-A) and ≤75% (group-B). BVE was calculated by dividing voided volume by voided volume plus PVR. Surgical outcomes were assessed from the ratio of the IPSS, the difference in Qmax and the difference in the quality of life IPSS subscore (QoL) before surgery and at 3, 12 and 36 months postoperatively. Results: There were significant improvements in all outcome measures after 3, 12, and 36 months; the improvement in Qmax was greater in group-A than group-B at each time point. The IPSS ratio was significantly greater in group-A than group-B at 3 months. There was no difference in QoL between the groups. The linear regression analysis showed that BVE correlated significantly with bladder outlet obstruction index, but not with prostate volume or age. In AUROC analysis, the BVE cut-off value of 75% showed highest sensitivity and specificity for predicting the success of surgical outcomes. Conclusions: Our results suggest that a large PVR may predict a relatively slight improvement in surgical outcomes after HPS-PVP. The cut-off value of PVR in predicting surgical success is 25% or more of residual fraction.
Authors:
Min Soo Choo; Sung Yong Cho; Jun Hyun Han; Seong Ho Lee; Jae-Seung Paick; Hwancheol Son
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-4-7
Journal Detail:
Title:  Journal of endourology / Endourological Society     Volume:  -     ISSN:  1557-900X     ISO Abbreviation:  J. Endourol.     Publication Date:  2014 Apr 
Date Detail:
Created Date:  2014-4-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8807503     Medline TA:  J Endourol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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