It was reported after use of a wallace¿ vaginal ring pessary, the patient experienced ureteral obstruction and acute post-renal failure.The adverse events were observed after a ct scan, which is when significant dilation of a ureter was confirmed on both sides.The pessary was then removed and an indwelling bladder caterer was placed.The patient's serum creatine was increased 3.2mg/dl.After this treatment, the patient excreted the maximum volume of dilute urine.The next morning, the patient's serum creatine was decreased to 0.8mg/dl.The patient then recovered after one day of observation.No permanent injury was reported.
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