Objective To assess the clinical application of ureteroscopy in the treatment of acute obstructive renal failure caused by upper urinary stones.Method 34 cases of acute obstructive renal failure caused by upper urinary stones were performed with lithotripsy,pneumatic lithotripsy,or pushing the stone back into renal pelvis and placing double J tube under ureteroscopy.Result All 34 patients regained urine volume in different degrees and their renal function became normal or close to normal,all without apparent complication.Conclusion Ureteroscopy is believed to be a safe and effective method with slight damage for the treatment of acute obstructive renal failure caused by upper urinary stones,and can treat the bilateral urinary stones simultaneously.It should be considered as a primary treatment for acute obstructive renal failure caused by upper urinary stones.

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