Risk factors of infection after intracavity fithotripsy for upper urinary tract calculi

Abstract

Objective To investigate the risk factors of infection after intracavity fithotripsy for upper urinary tract calculi. Methods The clinical data of 362 patients with upper urinary tract calculi who underwent endoscopic lithotripsy from August, 2013 to March, 2018 were retrospectively analyzed. According to the postoperative infection, 65 patients with infection were included in the infection group, and 297 patients without infection were included in the non-infection group. The clinical data of the two groups were processed by statistical method; and the risk factors of infection were summarized. Results Univariate analysis of variance showed that there were statistical differences in gender, preoperative infection history, diabetes mellitus, stone location, hydronephrosis severity, and stone load between the infection group and the non-infection group (all P<0.05). The above factors were related to the infection after endoscopic lithotripsy for upper urinary tract calculi. Multivariate regression analysis showed that sex, kidney and UPJ stones, preoperative infection, diabetes mellitus, severe hydronephrosis, and high stone load were independent risk factors for infection (all P<0.05). Conclusions Before endoscopic lithotripsy for upper urinary tract calculi, screening of sex, complications, calculi, and hydronephrosis severity should be strengthened, and targeted treatment should be given. Key words: Upper urinary tract calculus; Intracavity fithotripsy; Infection; Risk factors