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  • Title: Mechanisms of hypercoagulability in nephrotic syndrome associated with membranous nephropathy as assessed by thromboelastography.
    Author: Huang MJ, Wei RB, Wang ZC, Xing Y, Gao YW, Li MX, Cai GY, Chen XM.
    Journal: Thromb Res; 2015 Sep; 136(3):663-8. PubMed ID: 26168694.
    Abstract:
    INTRODUCTION: Thromboelastography (TEG) was performed to assess potential hypercoagulability in Nephrotic syndrome (NS) patients with membranous nephropathy (MN) and to explore correlated factors contributing to hypercoagulable status MATERIALS AND METHODS: 101 MN patients, 61 minimal change disease (MCD) patients and 20 healthy controls met the inclusion criteria. The MN and MCD patients were stratified into two layers according to serum albumin (SALB) levels (<20g/l or 20-30g/l). Primary outcome measures included reaction time (R), α-angle, maximum amplitude (MA) and coagulation index (CI). TEG parameters of four patient subgroups were analyzed in factorial designed ANOVA with factors disease and SALB. RESULTS: By linear regression analysis, TEG parameters in MN patients correlated with SALB (P<0.01) and the ANOVA for factorial designed data confirmed that the main effects of factors SALB and disease were both statistically significant. Besides, comparison between control group and patient subgroups showed that R value in normal controls was significantly higher than that in MN subgroups, but was not statistically different from that in MCD subgroups. NS patients (MCD, MN) had significantly higherα-angle, MA and CI values than healthy controls (p<0.05). CONCLUSIONS: MN patients tend to be more hypercoagulable than normal and MCD patients. Hypercoagulability in MN patients involves the whole thrombotic processes acceleration (activated intrinsic pathway, fibrinogen, platelet function and fibrin-platelet interaction), whereas hypercoagulable state in MCD patients may be that the coagulation factors are not fully activated. Greater efforts should be made to prevent hypercoagulability especially for MN patients with severe hypoalbuminemia.
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