Surgeon case volume and continence recovery following radical prostatectomy: a systematic review

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Abstract
Background: Urinary incontinence (UI) is a common complication following radical prostatectomy (RP). Prolonged UI has a substantial impact on quality of life and psychosocial well‐being. As the RP technique is complex, it is reasonable to propose that surgeon experience could affect post‐operative continence recovery outcomes. This study aimed to systematically evaluate evidence regarding a surgeon's experience and continence recovery after RP.Methods: A comprehensive search of the literature was performed in April 2020 using the Medline, Embase, CINAHL and psychINFO electronic databases according to Preferred Reporting Items for Systematic Reviews and Meta‐Analysis guidelines. All English language studies investigating UI following RP, stratified by surgeon experience, were included. Surgeon experience was defined as average annual case load or volume.Results: Thirteen studies published between 2003 and 2020 met the inclusion criteria and were included in our systematic review. Three prospective and 10 retrospective cohort studies included a total of 47 316 patients undergoing RP via open, laparoscopic or robotic‐assisted procedures. Heterogeneity in the definition of surgeon experience and UI did not allow a meta‐analysis. The majority of studies reported that surgeons with higher surgical volumes achieved better continence recovery rates at the early (6‐week), 3‐month, 6‐month and later (≥12‐month) time points. Most studies where a high surgical volume was defined as >50 cases/year demonstrated a significant difference in continence outcomes.Conclusion: Better urinary continence recovery results can be expected by patients who undergo RP performed by a surgeon with greater experience. An annual surgical case load of >50 cases/year results in improved continence recovery outcomes following RP.

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