Answer
Subclinical coagulopathy, signaled by a mild elevation of the thrombin time (TT) or activated partial thromboplastin time (aPTT) or a moderate reduction in the platelet count, is extremely common; however, overt disseminated intravascular coagulation (DIC) may also develop. Protease-activated receptors (PARs), especially PAR 1, form the molecular link between coagulation and inflammation; PAR1 exerts cytoprotective effects when stimulated by activated protein C or low-dose thrombin but exerts disruptive effects on endothelial-cell barrier function when activated by high-dose thrombin. [9]
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Media Gallery
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Stages of sepsis based on American College of Chest Physicians/Society of Critical Care Medicine Consensus Panel guidelines.
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Pathogenesis of sepsis and multiorgan failure.
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Venn diagram showing overlap of infection, bacteremia, sepsis, systemic inflammatory response syndrome (SIRS), and multiorgan dysfunction.
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Acute respiratory distress syndrome (ARDS) present in this chest x-ray (CXR) film is a common organ system affected in multiorgan failure of sepsis.
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Acute respiratory distress syndrome (ARDS) shown in this chest x-ray (CXR) film is a common complication of septic shock. Note bilateral airspace infiltration, absence of cardiomegaly, vascular redistribution, and Kerley B lines.
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Organizing phase of diffuse alveolar damage (ARDS) secondary to septic shock shows diffuse alveolar injury and infiltration with inflammatory cells.
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Organizing diffuse alveolar damage in a different location showing disorganization of pulmonary architecture.
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A high-power view of organizing diffuse alveolar damage (ARDS) shows hyperplasia of type II pneumocytes and hyaline membrane deposits.
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