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In Japan, the dose of the new recombinant antithrombin III concentrate (rAT-gamma) is titrated according to patient body weight (BW), while conventional plasma-derived antithrombin concentrates (AT) are administered as a fixed dose. Therefore, it is anticipated that rAT-gamma could produce better treatment effects than AT. The aim of this study was to compare the organ protective effects of doses of rAT-gamma and AT administered in clinical practice for septic disseminated intravascular coagulation (DIC) and multiple organ failure. This study was performed at a single university hospital in Japan. A total of 49 patients with antithrombin deficiency secondary to septic DIC who were administered either rAT-gamma (n = 26) or AT (n = 23) were retrospectively analyzed to assess the dose of supplemental antithrombin concentrates, plasma antithrombin activity, Japanese Association for Acute Medicine (JAAM)-DIC score, and modified Sequential Organ Failure Assessment (SOFA) score on days 0, 3 and 6. The AT-equivalent dose per kg BW of rAT-gamma (equal to the initial rAT-gamma dose per kg BW divided by 1.2) was significantly higher than the dose per kg BW of AT (AT 23.4 ± 5.1 vs. rAT 28.9 ± 3.9 IU/kg/day; P < 0.001). Consequently, serial increases in plasma antithrombin levels occurred more rapidly in the rAT-gamma group (P = 0.036). JAAM DIC and modified SOFA scores revealed significantly greater improvement in the rAT versus the AT group (JAAM DIC score: P = 0.042, mSOFA score: P = 0.005). The results of this study suggest that AT supplementation adjusted for patient BW might further improve septic DIC and multiple organ failure.

Citation

Hiromitsu Kuroda, Yoshiki Masuda. Comparison of Protective Effects of Recombinant Antithrombin Gamma and Plasma-Derived Antithrombin on Sepsis-Induced Disseminated Intravascular Coagulation and Multiple Organ Failure. Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis. 2020 Dec 17;26:1076029620981630


PMID: 33332196

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