A rare case of pyonephrosis resulting from tension-free vaginal tape procedure

A 54-yr-old womanwas admitted to our department because of intermittent urinary tract infection, fever and right flank pain for 2 months after having been performed a tension-free vaginal tape (TVT) for stress urinary incontinence in local hospital. 2 weeks before admission, the fever exceeded 39 C and the right flank pain became severe. The patient had had involuntary leakage of urine associated with physical activities such as coughing and laughing since a vaginal delivery 20 years prior. Ruling out the clinical indication of urinary tract infection according to the laboratory data, the tension-free vaginal tape (TVT) was performed after