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  • Title: Preventive effects of low molecular weight heparin on formation of deep vein thrombosis by reducing D dimer values in patients undergoing spinal surgery.
    Author: Yin X, Liu P, Liu BY, Liu YY, Fan WL, Zhao JH.
    Journal: Eur Rev Med Pharmacol Sci; 2018 Jan; 22(1):229-237. PubMed ID: 29364491.
    Abstract:
    OBJECTIVE: Deep vein thrombosis (DVT) is one of the most common complications for patients undergoing spinal surgery. This study aims to investigate preventive effects of low-molecular-weight heparin (LMWH) on the formation of DVT. PATIENTS AND METHODS: This study involved 37 patients who underwent spinal surgery between April 2016 and April 2017. Patients were divided into LMWH group and Control group. Clinical parameters, including operation time, intra-operative blood loss, incision length, post-operative visual analogue scale (VAS), exercise-time leaving bed and post-operative extubation time, were collected. Blood routine analysis, including platelet count (PLT), red blood cell count (RBC), white blood cell count (WBC) and hemoglobin (HGB) were also conducted. Coagulation parameters, including prothrombin time-international normalized ratio (PT-INR), fibrinogen (FIB), activated partial thromboplastin time (APTT), thrombin time (TT), prothrombin time 1 (PT-1) and D-dimer (DD), were evaluated. The drainage fluid was collected. RESULTS: LMWH treatment significantly decreased operative time, blood loss and incision length compared to Control group at 1st, 3rd and 7th day post-operation (all p<0.05). LMWH treatment significantly increased WBC levels compared to Control group at 1st, 3rd and 7th day post-operation (p<0.05). LMWH treatment significantly decreased DD levels in the post-operative patients compared to Control group at 1st, 3rd and 7th day post-operation (p<0.05). However, LMWH treatment doesn't affect drainage amounts of patients. DD levels were positively correlated with WBC counts for the LMWH treated patients. CONCLUSIONS: Low molecular weight heparin effectively prevents the formation of DVT by reducing DD values in patients undergoing spinal surgery.
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