Analysis of risk factors for ureteral stricture in patients with upper ureteral calculi undergoing holmium laser lithotripsy under ureteral soft endoscopy
Aim To explore the risk factors of upper ureteral stones complicated with ureteral stricture in patients treated with holmium laser lithotripsy under ureteroscopy.Methods 988 patients with upper ureteral stones were selected and divided into a soft mirror group and a hard mirror group based on different surgical equipment.The levels of cortisol(Cor)and C-reactive protein(CRP)were compared between the two groups.The soft endoscope group was divided into a stenosis group and a non-stenosis group based on the presence or absence of postoperative ureteral stricture.Multivariate Logistic regression analysis was used to identi-fy the risk factors for ureteral stricture.Results The postoperative Cor and CRP levels in both groups were higher than those be-fore surgery,and the soft mirror group was lower than the hard mirror group(P<0.05).The incidence of ureteral stricture in the soft endoscope group was 5.60%.The disease course,stone diameter,stone entrapment,and ureteral injury were independent risk fac-tors for concurrent ureteral stricture(P<0.05).Conclusion Ureteroscopy has a smaller impact on the patient's stress response,and the disease course,stone diameter,stone entrapment,and ureteral injury are independent risk factors for ureteral stricture.
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