A clinical study on the significance of platelet-activating factor in the pathophysiology of septic disseminated intravascular coagulation in surgery

American Journal of Surgery
S OnoS Tamakuma

Abstract

To investigate the characteristic differences between disseminated intravascular coagulation (DIC) found in surgical sepsis (septic DIC) and those found in patients with advanced gastrointestinal cancer (cancer DIC), we focused on two substances, endotoxin and platelet- activating factor (PAF). Coagulation test values were determined in 36 patients with DIC, and endotoxin and PAF concentrations in 13 of these patients. Seven septic patients were given a PAF antagonist to evaluate its usefulness in treating thrombocytopenia. Blood PAF and endotoxin concentrations were higher in patients with septic DIC, but they were almost normal in those with cancer DIC. Blood PAF concentrations showed a strong positive relationship to endotoxin only in septic DIC. There was a negative correlation between PAF concentrations and platelet counts in septic patients; platelet counts gradually increased after the administration of a PAF antagonist. PAF is inversely associated with platelet counts in patients with septic DIC. A PAF antagonist showed marked inhibitory effects on the characteristic changes of septic DIC, especially thrombocytopenia.

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Oct 17, 1998·Journal of Veterinary Internal Medicine·D J Weiss, J Rashid
Jan 5, 2002·Expert Opinion on Investigational Drugs·R L Añel, A Kumar
Jan 11, 2011·Thrombosis Research·Line Olrik BerthelsenMikael Tranholm
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Aug 24, 2019·Free Radical Biology & Medicine·Kandahalli Venkataranganayaka AbhilashaGopal Kedihithlu Marathe

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