Thrombosis research
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Thrombosis research · Nov 2013
Lobectomy and postoperative thromboprophylaxis with enoxaparin improve blood hypercoagulability in patients with localized primary lung adenocarcinoma.
Patients with lung adenocarcinoma undergoing surgery are in high risk for VTE and receive routine post-operative thromboprophylaxis with LWMH. ⋯ In patients with localized lung adenocarcinoma, hypercoagulability is characterized by high thrombin generation and increased concentration of Pd-MP/PS(+). Tumor mass resection is related with attenuation of thrombin generation, which is inhibited by postoperative thromboprophylaxis with enoxaparin. The response to enoxaparin is not predicted by the concentration of the anti-Xa activity in plasma. The assessment of thrombin generation during prophylaxis with enoxaparin allows to identify patients with high residual plasma hypercoagulability.
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Thrombosis research · Nov 2013
Surfactant impairs coagulation in-vitro: a risk factor for pulmonary hemorrhage?
Pulmonary hemorrhage (PHEM) complicates the hospital course of 3-5% of preterm infants with respiratory distress syndrome (RDS), and bears a high mortality rate. Impaired thrombin generation and poor clot formation in premature neonates affect PHEM severity. ⋯ The presence of surfactant impairs coagulation in-vitro. The risk of PHEM may therefore be greater in extremely premature infants. Future studies are required to assess the clinical significance and relevance of our preliminary findings.
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Thrombosis research · Nov 2013
Quality of life after pulmonary embolism as assessed with SF-36 and PEmb-QoL.
Although quality of life (QoL) is recognized as an important indicator of the course of a disease, it has rarely been addressed in studies evaluating the outcome of care for patients with pulmonary embolism (PE). This study primarily aimed to evaluate the QoL of patients with acute PE in comparison to population norms and to patients with other cardiopulmonary diseases, using a generic QoL questionnaire. Secondary, the impact of time period from diagnosis and clinical patient characteristics on QoL was assessed, using a disease-specific questionnaire. ⋯ Our study demonstrated an impaired QoL in patients after treatment of PE. The results of this study provided more knowledge about QoL in patients treated for PE.
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Thrombosis research · Oct 2013
Observational StudyThe role of soluble thrombomodulin in the risk stratification and prognosis evaluation of septic patients in the emergency department.
Soluble thrombomodulin (sTM) is a sensitive marker of endothelial damage. In this study we investigated the role of sTM in the evaluation of the severity and prognosis of septic patients in the emergency department (ED). ⋯ sTM is a valuable biomarker in the risk stratification and prognosis evaluation of ED sepsis. Furthermore, sTM can enhance the ability of the MEDS score in prediction of severe sepsis and 30-day mortality.
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Thrombosis research · Oct 2013
Intercellular transfer of tissue factor via the uptake of tumor-derived microvesicles.
Coagulation proteins play a critical role in numerous aspects of tumor biology. Cancer cells express tissue factor (TF), the protein that initiates blood clotting, which frequently correlates with processes related to cell aggressiveness, including primary tumor growth, invasion, and metastasis. It has been demonstrated that TF gets incorporated into tumor-derived microvesicles (MVs), a process that has been correlated with cancer-associated thrombosis. ⋯ Incubating MCF-7 cells with MDA-MB-231 MVs significantly increased the TF activity. This phenomenon was not observed upon pretreatment of MVs with anti-TF or annexin-V, which blocks phosphatidylserine sites on the surface of MVs. Our data indicated that TF-bearing MVs can be transferred between different populations of cancer cells and may therefore contribute to the propagation of a TF-related aggressive phenotype among heterogeneous subsets of cells in a tumor.