Preservation of thrombin generation in cirrhosis despite abnormal results of international normalized ratio: implications for invasive procedures.

Blood Coagulation & Fibrinolysis : an International Journal in Haemostasis and Thrombosis
Caroline M FerreiraAlberto Q Farias

Abstract

Thrombin generation is normal or elevated in patients with cirrhosis when tested in the presence of thrombomodulin, the activator of the main natural anticoagulant protein C. However, the relationship between thrombin generation with bleeding has been little explored in literature. 97 Consecutive patients with cirrhosis were prospectively included (58 men; 54 ± 10 years) and divided into two groups international normalized ratio (INR) less than 1.5 (n = 72) or INR at least 1.5 (n = 25). 46 Healthy individuals were tested as controls. Endogenous thrombin potential (ETP) was measured without and with the addition of thrombomodulin. ETP measured without thrombomodulin was reduced in patients with cirrhosis when compared with controls, but no significant difference was found between the INR less than 1.5 and INR at least 1.5 groups (1250 ± 315.7 versus 1186 ± 238 nmol/l × min; P = 0.3572). After the addition of thrombomodulin, both groups generated thrombin comparable with controls (INR ≥ 1.5: 965.9 ± 232.3; INR < 1.5: 893.0 ± 368.6; controls: 915.0 ± 458 nmol/l × min). 80% of patients had high ETP without/with thrombomodulin ratio, demonstrating the resistance to the anticoagulant action of thrombomodulin for both groups. This was...Continue Reading

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Citations

May 11, 2021·Liver International : Official Journal of the International Association for the Study of the Liver·Arpan MohantyTarun Rustagi

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