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膀胱输尿管反流(简称“反流”)(vesicoureteral reflux,VUR)是由于膀胱输尿管连接部瓣膜作用不全以致尿液自膀胱反流入输尿管、肾盂而导致的一类常见的泌尿系统疾病。由于膀胱输尿管反流的存在,常常引起小儿反复的泌尿系感染特别是肾盂肾炎,感染的尿液反流入肾组织引起肾实质损
Vascular vesicoureteral reflux (VUR) is a common urologic disorder caused by urinary bladder reflux from the bladder into the ureter and renal pelvis due to incomplete valve action of the ureterocele. Due to the presence of vesicoureteral reflux, recurrent urinary tract infections in children, especially pyelonephritis, are often caused by the infection of urine into the renal tissue causing renal parenchymal damage