“…Since then thrombotic complications have frequently been observed in nephrotic patients in both venous and arterial systems [14,15,31,39,45,50]. The association of the nephrotic syndrome with renal vein thrombosis has been found to be particularly frequent [23,26,33,39,45] and it is now generally considered to be a complication, while in the past was regarded as a cause of the nephrotic syndrome [30,32], The tendency of nephrotic patients to thrombotic episodes has been attributed to a hypercoagulable state. Therefore, some aspects of haemostasis in such patients have been studied previously [9,22,25,53], but no complete haemostasis data are available at present.…”