Clogging of ureteral stent by ureteral stone street and stone dust after flexible ureteroscopic lithotripsy:A case report
Objective To investigate the clinical manifestations and diagnosis and treatment of ureteral stone street with stone powder occlusion of ureteral stent tubes leading to peritubular and intratubular drainage malfunc-tion after ureteral flexible ureteroscopy.Methods Retrospective analysis of a case of ureteral stone street with stone powder occlusion of ureteral stent tube after ureteroscopy admitted to the Department of Urology of the Affil-iated Hospital of Zunyi Medical University in June,2022,combined withreview of the relevant literature.Re-sults The patient had recurrent nausea and vomiting as the main symptom with pain and discomfort in the left lower abdomen.After conservative treatment with antiemetic,lithotripsy and antispasmodic therapy,the symp-toms persisted unrelieved,and after ureteroscopy with forceps removal of the stone and replacement of the ureter-al stent tube,the symptoms of vomiting and pain disappeared.Conclusion When symptoms related to ureteral ob-struction,such as severe nausea and vomiting,pain and discomfort in the ureteral tract,etc.,appear in the ear-ly period after flexible ureteroscopy,and at the same time the imaging findings indicate ureteral stone street,di-lated hydronephrosis of ureter and renal pelvis,it is necessary to take into account that ureteral stone street and powdered stone block the ureteral stent tube,resulting in peritubular and intraluminal drainage,and it is neces-sary to timely surgically remove the stone street,and replace with new ureteral stent tubes,so as to improve the patient's symptoms.
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