肾病综合征 (ＮＳ)患者常处于高凝状态 ,易并发血栓形成。肝素可防止血管内凝血及肾小球内凝血 ,但因易出血和需反复监测凝血时间而临床应用受到限制。低分子量肝素 (ＬＭＷＨ)是由普通肝素通过酶学的或化学的降解而产生 ,具有普通肝素的抗凝作用 ,而其出血的副作用则很少。为 Nephrotic syndrome (NS) patients often hypercoagulable state, easily complicated by thrombosis. Heparin can prevent intravascular coagulation and glomerular coagulation, but due to bleeding and the need to repeatedly monitor the clotting time and clinical application is limited. Low molecular weight heparin (LMWH) is produced by enzymatic or chemical degradation of unfractionated heparin and has the anticoagulant effect of unfractionated heparin, with few side effects of bleeding. for