Improvement of quality of life and symptom burden after robot-assisted radical prostatectomy in patients with moderate to severe LUTS.

The aim of this study was to assess clinically meaningful differences of preoperative lower urinary tract symptoms (LUTS) and quality of life (QoL) before and after robot-assisted radical prostatectomy (RARP). Therefore we identified 5506 RARP patients from 2007 to 2018 with completed International Prostate Symptom Score (IPSS) and -QoL questionnaires before and 12 months after RARP in our institution. Marked clinically important difference (MCID) was defined by using the strictest IPSS-difference of - 8 points. Multivariable logistic regression analyses (LRM) aimed to predict ∆IPSS ≤ - 8 and were restricted to RARP patients with preoperatively moderate (IPSS 8-19) vs. severe (IPSS 20-35) LUTS burden (n = 2305). Preoperative LUTS was categorized as moderate and severe in 37% (n = 2014) and 5.3% of the complete cohort (n = 291), respectively. Here, a postoperative ∆IPSS ≤ - 8, was reported in 38% vs. 90%. In LRM, younger age (OR 0.98, 95%CI 0.97-0.99; p = 0.007), lower BMI (OR 0.94, 95%CI 0.92-0.97; p < 0.001), higher preoperative LUTS burden (severe vs. moderate [REF.] OR 15.6, 95%CI 10.4-23.4; p < 0.001), greater prostate specimen weight (per 10 g, OR 1.12, 95%CI 1.07-1.16; p < 0.001) and the event of urinary continence recovery (OR 1.66 95%CI 1.25-2.21; p < 0.001) were independent predictors of a marked LUTS improvement after RARP. Less rigorous IPSS-difference of - 5 points yielded identical predictors. To sum up, in substantial proportions of patients with preoperative moderate or severe LUTS a marked improvement of LUTS and QoL can be expected at 12 months after RARP. LRM revealed greatest benefit in those patients with preoperatively greatest LUTS burden, prostate enlargement, lower BMI, younger age and the event of urinary continence recovery.

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