Platelet activation and interaction with leucocytes in patients with sepsis or multiple organ failure

European Journal of Clinical Investigation
M P GawazK Werdan

Abstract

This study focuses on the role of platelet membrane glycoproteins and platelet-leucocyte adhesion in patients with sepsis and multiple organ failure (MOF). Specifically, the study raises the following issues: (1) the influence of sepsis and MOF on platelet activation as assessed by surface expression of platelet membrane glycoproteins GPIIb-IIIa and thrombospondin; and (2) the effect of sepsis and MOF on platelet adhesion to circulating leucocytes. In addition, platelet activation and platelet-leucocyte adhesion are evaluated according to clinical outcome. Forty-five patients with suspected sepsis or MOF were evaluated by intensive care scoring systems (APACHE II and Elebute) to assess severity of disease. Flow cytometric techniques were used to examine platelet membrane expression of various adhesion molecules on circulating platelets and the appearance of platelet specific antigen (CD41) on leucocytes as an index of platelet-leucocyte adhesion. The results were compared with severity of disease and according to outcome in patients. Twenty-eight patients of the total study population were septic and 17 were non-septic. Twenty-two of the 28 septic patients suffered from severe MOF (APACHE II > or = 20) whereas in six septic pat...Continue Reading

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