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Significant reduction of lymphoceles after radical prostatectomy and pelvic lymph node dissection.
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Pose Randi M, Knipper Sophie, Würnschimmel Christoph, Tennstedt Pierre, Michl Uwe, Maurer Tobias, Graefen Markus, Steuber Thomas
Аннотация
OBJECTIVES: To reduce the risk of symptomatic lymphocele (SLC), we present a technique using peritoneal fenestration that allows lymphatic fluid to drain into the abdomen, as SLC formation after open retropubic radical prostatectomy (ORP) with pelvic lymph node dissection (PLND) is a common adverse event.
PATIENTS AND METHODS: We identified 1513 patients who underwent ORP with PLND between July 2018 and November 2019. Of those, 307 patients (20.3%) received peritoneal fenestration and 1206 (79.7%) no fenestration. The rate of LCs and the necessity for intervention were analysed by uni- and multivariable logistic regression (MLR) models. A propensity score matching was performed, as well.
RESULTS: The median (interquartile range [IQR]) age was 65 (60-70) years. A median (IQR) of 16 (10-22) lymph nodes were dissected, 22 vs 14 lymph nodes in the fenestration vs non-fenestration group (P < 0.001). Overall, 189 patients (12.5%) were diagnosed with a LC after ORP, while 21 patients (6.8%) in the fenestration and 168 (13.9%) in the non-fenestration group had LCs (P = 0.001). In 70 patients (4.7%), LCs required further intervention, categorised as Clavien-Dindo Grade IIIa/b, with a smaller proportion in the fenestration group (2.9% vs 5.0% in the non-fenestration group, P < 0.001). There were no Clavien-Dindo Grade IV or V complications, in particular no abdominal complications in association with peritoneal fenestration observed. In MLR, peritoneal fenestration was associated with a reduced risk of LCs (odds ratio [OR] 0.33, 95% confidence interval [CI] 0.2-0.5; P < 0.001). The risk reduction was also shown after propensity score matching (OR 0.38, 95% CI 0.21-0.68; P = 0.001). The number needed to treat was 14.
CONCLUSIONS: Peritoneal fenestration may decrease the rate of SLC after ORP with (extended) PLND. Therefore, it should be part of the operative strategy.
PATIENTS AND METHODS: We identified 1513 patients who underwent ORP with PLND between July 2018 and November 2019. Of those, 307 patients (20.3%) received peritoneal fenestration and 1206 (79.7%) no fenestration. The rate of LCs and the necessity for intervention were analysed by uni- and multivariable logistic regression (MLR) models. A propensity score matching was performed, as well.
RESULTS: The median (interquartile range [IQR]) age was 65 (60-70) years. A median (IQR) of 16 (10-22) lymph nodes were dissected, 22 vs 14 lymph nodes in the fenestration vs non-fenestration group (P < 0.001). Overall, 189 patients (12.5%) were diagnosed with a LC after ORP, while 21 patients (6.8%) in the fenestration and 168 (13.9%) in the non-fenestration group had LCs (P = 0.001). In 70 patients (4.7%), LCs required further intervention, categorised as Clavien-Dindo Grade IIIa/b, with a smaller proportion in the fenestration group (2.9% vs 5.0% in the non-fenestration group, P < 0.001). There were no Clavien-Dindo Grade IV or V complications, in particular no abdominal complications in association with peritoneal fenestration observed. In MLR, peritoneal fenestration was associated with a reduced risk of LCs (odds ratio [OR] 0.33, 95% confidence interval [CI] 0.2-0.5; P < 0.001). The risk reduction was also shown after propensity score matching (OR 0.38, 95% CI 0.21-0.68; P = 0.001). The number needed to treat was 14.
CONCLUSIONS: Peritoneal fenestration may decrease the rate of SLC after ORP with (extended) PLND. Therefore, it should be part of the operative strategy.