The application of retrograding double J tube in the drug-crystalline upper urinary tract obstruction

Abstract

Objective To investigate the effects of the double J tube in treating drug-crystalline upper urinary tract obstruction. Methods There were 12 cases of drug-crystalline urinary tract obstruction, which were diagnosed by CT for urinary tract obstruction. With the help of cystoscope,we retrograde placed the double-J tube in all the 12 patients who with persistently elevated serum creatinine in the next day of admission. Results Nine patients were successfully placed double J stent and serum creatinine of the patients decreased to normal rapidly. There were 2 patients with failed implantation and were with persistently elevated serum creatinine.1 patient with unilateral urinary tract obstruction was treated with conservative treatment and eventually cured. Conclusion Patients with drug-induced renal injury should have a routine bilateral ureteral CT scan, once they are clearly diagnosed as drug crystal upper urinary tract obstruction in them, timely placement of bilateral double J tube with the help of cystoscope, which was a simple and effective treatments. Key words: Double J tube; Drug crystal; Upper urinary tract obstruction