부산대학교 도서관

Simple Summary: Lymphoceles (lymphatic fluid collections in the pelvis) are a common complication of robot-assisted radical prostatectomy. Peritoneal interposition flaps have been proposed as an intraoperative modification to reduce lymphocele formation. However, data from randomised controlled trials on this subject are not conclusive. In particular, data on long-term efficacy and complications are lacking. The PIANOFORTE trial was the first randomised controlled trial exploring this subject and showed a negative outcome regarding lymphocele reduction by performing a peritoneal interposition flap. In this long-term follow-up of the trial (median 43 months postoperatively), we could confirm the initial result that, while the interposition flap does not have a negative impact on complications or functionality, there is also no effect on lymphocele reduction in the long term. Additionally, these results confirm the possibility of lymphocele formation beyond the third postoperative month, which has to be borne in mind in the follow-up of these patients. The available randomised controlled trials (RCTs) assessing the influence of peritoneal interposition flaps (PIF) on the reduction of symptomatic lymphoceles (sLCs) post robot-assisted radical prostatectomy (RARP) do not constitute a sufficient follow-up (FU) to assess the long-term effects. The PIANOFORTE trial was the first of these RCTs, showing no sLC reduction at the 3-month FU. Therefore, all 232 patients from the PIANOFORTE trial were invited for long-term FU. One hundred seventy-six patients (76%) presented themselves for FU and constituted the study group (SG). The median FU duration was 43 months. No significant differences in group allocation or LC endpoints at 90 days were observed between SG patients and patients not presenting themselves for the FU. During the FU period, four patients (2.3%) in the SG developed sLCs, and six patients (3.4%) developed asymptomatic lymphoceles (aLCs), which persisted in five patients (2.9%). There were no significant differences between PIF and non-PIF regarding sLC/aLC formation or persistence, newly developed complications, stress urinary incontinence or biochemical/clinical tumour recurrence. Therefore, this long-term FU confirms the primary outcomes of the PIANOFORTE trial that, while PIF does not impact complications or functionality, it does not reduce sLC/aLC rates. Furthermore, it shows the potential occurrence of LC after the third postoperative month. [ABSTRACT FROM AUTHOR]