ArticleGeneral thoracic and cardiovascular surgery2025
Hypercoagulable state and effect of low-molecular-weight heparin prophylaxis on coagulation after lung cancer resection: results from thrombo-elastography.
Article in General thoracic and cardiovascular surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundLung cancer patients undergoing surgery are at increased risk for Venous thromboembolism (VTE). We monitored changes in perioperative coagulation status through Thrombo-elastography (TEG), and monitored the anticoagulant effect of low molecular weight heparin through TEG for the first time.
methodsFrom July 2019 to January 2020, 207 patients receiving curative surgery were retrospectively screened. and 23 patients were excluded because they did not meet the inclusion criteria. Blood samples were required at three time points (prior to, the first and third day after surgery). Some patients were administrated nadroparin calcium daily from the first day after surgery. Repeated measures ANOVA and Chi-square test were used to analyze the coagulation states variation. To balance the confounders, propensity score matching (PSM) was used to determine the differences of coagulation states between patients with or without Low-molecular-weight heparin (LMWH) prophylaxis.
resultsIn 184 patients, TEG parameters displayed significant procoagulant changes after lung surgery but conventional coagulation tests exhibited paradoxical trends. There were 6.5% (12/184) of patients identified as hypercoagulability before surgery. According to TEG results, the proportion of patients with hypercoagulability rose from 21.7% to 25% postoperatively, but more were classified into platelet or mixed hypercoagulability at third day compared with that at first day (3.8% vs 14.1%, P < 0.001). By PSM analysis, there were no significant differences in the proportion of hypercoagulable patients postoperatively between chemoprophylactic and nonprophylactic group.
conclusionsTEG was eligible to distinguish changing states of hypercoagulability postoperatively and indicate the role of platelet in blood hypercoagulability. Administration of postoperative LMWH prophylaxis showed little mitigation on hypercoagulable states.
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