Occurrence and Risk Factors of Ureteral Stricture in Patients with Ure-teral Calculi after Ureteroscopic Holmium Laser Lithotripsy
Objective To investigate the occurrence and influencing factors of ureteral stricture after ureteroscopic hol-mium laser lithotripsy(URHL).Methods A total of 246 patients with ureteral calculi admitted to the Department of Urology of Yinjiang County People's Hospital from January 2020 to March 2023 were conveniently selected and treated with URHL.According to the presence or absence of ureteral stenosis,the patients were divided into stenosis group(14 cases)and non-stenosis group(232 cases).The clinical data of the two groups were analyzed,and univariate and multivariate analyses were performed to screen the risk factors of ureteral stricture in patients with ureteral calculi after URHL.Results Univariate analysis showed that the proportion of patients with disease course≥3 months,stone diameter>2 cm,polyp encapsulation,incarcerated stones,laser lithotripsis time>60 min in the stenosis group were significantly higher than that in the non-stenosis group,and the differences were statistically significant(all P<0.05).Multivariate Logistic regression analysis showed that duration≥3 months,stone diameter>2 cm,polyp encapsulation,incarcerated stones,and laser lithotripsy time>60 min were all risk factors for ureteral stricture after URHL,and the differences were statistically significant(OR=2.349,2.004,3.384,3.600,4.166,all P<0.05).Conclusion Duration≥3 months,stone diameter>2cm,polyp encapsulation,incarcerated stones,and laser lithotripsy time>60 min are all risk factors for ureteral stricture in patients with URHL.Targeted interventions can be given to high-risk patients accord-ing to the above results,so as to reduce the risk of ureteral stricture.
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