Massive haemorrhage caused by left renal vein ligation

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Abstract
Summary: It is common practice to ligate the left renal vein during aortic surgery. Although this does not usually lead to complications we report 2 patients in whom left renal vein ligation caused massive venous congestion of the kidney and major retroperitoneal haemorrhage. Nephrectomy was necessary to control the haemorrhage. In l patient immediate autotransplantation preserved renal function.