Objective\ To evaluated the effect of warfarin and low molecular weight heparin(LMWH) in patients with refractory nephrotic syndrome(RNS) accompanied with hypercoagulability and investigate the change of amount of urinary protein. Method\ 78 cases with RNS, who were positive serum D-dimer(D-D) and prothrombin time(PT) less than 11 seconds, were randomly divided into four groups. In which, two groups accepted normal dosage of warfarin or LMWH, had 1~1.5 times PT longer than normal for four weeks, other tow ...