Clinical study on the treatment of small calculi in the middle and lower segment of ureter by extracorporeal physical vibrating lithotomy

Abstract

Objective To compare the clinical effects of active lithotripsy(extracorporeal physical vibration lithotripsy combined with drugs) and passive lithotripsy(drug therapy alone) in the treatment of small stones in the middle and lower ureter. Methods All the included subjects were patients with primary small ureteral calculi in the middle and lower segment(<6 mm) admitted to our hospital from January 2018 to September 2018 outpatient department. Patients in the two groups were randomly divided into the active stone drainage group (in vitro physical vibration stone drainage combined with drug therapy) and the passive stone drainage group(purely drug therapy). Urinary CT was reexamined 1, 2 and 4 weeks after treatment. Comparison indexes: the rate of ureteral calculi excretion and net excretion at 1, 2 and 4 weeks after treatment, and the incidence of complications in the two groups were compared.Logistic regression analysis was performed on related parameters. Results A total of 138 patients were included in the study, among which 76 were males and 62 were females. There was no statistical difference in gender composition, age, stone size, CT value and stone distribution between the two groups(P>0.05). The stone removal rate of active rock discharging group on 1, 2 and 4 weeks was 52.6%, 63.2% and 78.9% respectively, while the corresponding passive stone discharging group was 33.9%, 40.3% and 61.3% respectively(P 0.05). Conclusions Physical vibration stone drainage is a safe and effective auxiliary treatment of stone drainage, compared with conservative treatment, can improve the ureteral stone drainage rate. Key words: Ureteral Calculi; Lithotripsy; Drug Therapy