The possible association between serum interleukin 8 and acute urinary retention in Chinese patients with benign prostatic hyperplasia.

Acute urinary retention (AUR) is one of the progressive manifestations of benign prostatic hyperplasia (BPH). This cross-sectional study was conducted to analyse the possible association between serum interleukin 8 (sIL-8) and AUR in BPH patients to provide evidence of sIL-8 as a potential biomarker for the prediction of AUR. The relationship between sIL-8 levels and AUR was evaluated by logistic regressions in 245 ageing Chinese men with BPH. The discriminant validity of sIL-8 and the optimal cut-off value were determined by a receiver operating characteristic curve. The levels of sIL-8 increased significantly in BPH patients with AUR (p < 0.001). The sIL-8 concentration was positively correlated with AUR in BPH patients (OR = 1.024, 95% CI: 1.009-1.040, p = 0.002). The correlation with AUR in the group with a high sIL-8 level (≥43.05 pg/ml) was significantly enhanced (OR = 8.853, 95% CI: 2.433-32.205, p = 0.001). The sIL-8 level correlated with AUR in Chinese BPH patients independently. As a possible predictor, sIL-8 may contribute to the screening of high-risk populations for AUR to create opportunities for the early effective interventions to improve prognosis and enhance the quality of life. Prospective studies are needed to support all these results.

Andrologia. 2020 Aug 23 [Epub ahead of print]

Di Wu, Hai-Xiao Tang, Yu Wu, Su-Bo Qian, Ding Xu, Jun Qi

Department of Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.

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