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左肾静脉压迫综合征（LRV）又称胡桃夹现象，是指LRV走行在肠系膜上动脉与腹主动脉形成的夹角内受到挤压引起反复性、发作性血尿或蛋白尿，是儿童非肾小球性血尿的重要病因之一。我院自1995年9月至1996年3月，对临床表现为非肾小球性血尿病儿进行腹部B超检查，观察有无左肾静脉
Left renal vein compression syndrome (LRV), also known as nutcracker phenomenon, refers to the LRV walk in the angle between the formation of the superior mesenteric artery and the abdominal aorta caused by repeated compression, episodes of hematuria or proteinuria, non-renal children One of the important causes of pelvic hematuria. Our hospital from September 1995 to March 1996, the clinical manifestations of non-glomerular hematuria in children with abdominal B-ultrasound, with or without left renal vein