Abstract:Objective: To investigate the clinical value of preoperative maximum thickness of ureteral wall in the prediction on occurrence and prognosis of ureteral incarcerated calculi. Methods: The clinical data of 192 patients with ureteral incarcerated calculi including 80 cases of ureteral incarcerated calculi (group A) and 112 cases without ureteral incarcerated calculi (group B) were retrospectively chosen in the period from January 2018 to December 2019. The baseline clinical data of two groups before operation were compared and the independent predictors of ureteral incarcerated calculi before operation were analyzed by logistic regression. Then ROC curve was drawn to evaluate the predictive value of the maximum thickness of ureteral wall in stone place before operation. Results: (1) There were significant differences in hypertension, previous history of ipsilateral stones, hydronephrosis, stone diameter, stone maximum cross-sectional area, stone volume, stone CT value, maximum thickness of ureter wall and percussion pain degree in renal area between two groups (P < 0.05). (2) The results of logistic regression analysis showed that the maximum thickness of ureteral wall was the independent predictor of ureteral incarcerated calculi before operation (P < 0.05). (3) The AUC by ROC curve of maximum thickness of ureteral wall was 0.93 (95% CI: 0.86 - 0.96), the best predicted cutoff value was 3.20 mm, the sensitivity and specificity were 83.17% and 87.93%, respectively. (4) The incidence of ureteral edema, polyp and stricture in predicted ureteral incarcerated calculi group was significantly higher than non-predicted ureteral incarcerated calculi group (P < 0.05). The stone clearance rate in predicted ureteral incarcerated calculi group was significantly lower than in non-predicted ureteral incarcerated calculi group (P < 0.05). Conclusion: The maximum thickness of the ureteral wall in stone place before operation can be used to predict the occurrence of ureteral incarcerated stone, in which the patients with maximum thickness of the ureteral wall ≥ 3.20 mm possess more seriousness disease and the lower stone clearance rate.
李志勇, 蒲光平, 严坤. 术前结石处输尿管壁最大厚度对输尿管嵌顿性结石发生及预后的预测[J]. 微创泌尿外科杂志, 2020, 9(6): 386-390.
LI Zhiyong, PU Guangping, YAN Kun. Predictive value of preoperative maximum thickness of ureteral wall for occurrence and prognosis of ureteral incarcerated calculi. JOURNAL OF MINIMALLY INVASIVE UROLOGY, 2020, 9(6): 386-390.
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