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  • Title: Prevalence and risk factors for venous thromboembolism in spinal metastasis patients undergoing decompression with internal instruments: Prospective cohort study.
    Author: Jiang YQ, Zou YP, Li XL, Zhou XG, Lin H, Zhou J, Qi Q, Dong J.
    Journal: Clin Neurol Neurosurg; 2022 Mar; 214():107154. PubMed ID: 35151059.
    Abstract:
    OBJECTIVE: re is paucity in the literature on the epidemiological evidence of pulmonary thromboembolism (PE) and deep venous thrombosis (DVT) in spinal metastatic tumor patients. The aim of our study was to identify the incidence and risk factors for VTE in spinal metastasis patients treated with decompression with internal instruments. METHODS: We prospectively investigated the occurrence of VTE after decompression with internal fixations in 80 spinal metastasis patients. DVT was diagnosed by using a duplex ultrasonographical. PE was diagnosed by multidetector computed tomographic (CT) pulmonary angiography. Patient information and clinical parameters were collected. Risk factors were analyzed by comparing the difference between VTE and non-VTE cases. RESULTS: The incidence of developing a DVT was 6.3% (5/80). No patient suffered PE. In univariate analysis, the mean length of hospital stay after surgery until discharge for VTE group was longer than non-VTE group, ODI scores and AIS in VTE group were significantly worse than non-VTE group, D-dimer one-day postoperatively for VTE group was significantly higher than non-VTE group. In logistic regression, D-dimer at one-day postoperatively was the only risk factor. The areas under the ROC curves for the D-dimer (post) to distinguish between non-VTE and VTE was 0.971(P value=0.000). By means of the ROC analysis, the optimum thresholds of D-dimer(post) were determined to be 9.51 mg/L. The sensitivity and specificity for the optimum threshold were 100.0% and 92.0%. CONCLUSION: The prospective study of 80 patients with spinal metastasis who underwent decompression with internal fixation revealed an incidence of DVT of 6.3%, patients with increasingly D-dimer level at one-day postoperatively had a higher risk of DVT, and the optimum thresholds of D-dimer(post) were determined to be 9.51 mg/L.
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