Volume 91, Issue 3 pp. 106-110

Multiple Thrombotic Occlusions of Vessels after Russell's Viper Envenoming

Dong-Zong Hung

Dong-Zong Hung

Institutes of Toxicology and

Division of Toxicology, Emergency Department, Taichung Veterans General Hospital, Taichung and

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Ming-Ling Wu

Ming-Ling Wu

Division of Clinical Toxicology, Medical Department, Veterans General Hospital, Taipei, Taiwan

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Jou-Fang Deng

Jou-Fang Deng

Division of Clinical Toxicology, Medical Department, Veterans General Hospital, Taipei, Taiwan

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Dar-Yu Yang

Dar-Yu Yang

Division of Toxicology, Emergency Department, Taichung Veterans General Hospital, Taichung and

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Shoei-Yn Lin-Shiau

Shoei-Yn Lin-Shiau

Institutes of Toxicology and

Pharmacology, School of Medicine, National Taiwan University;

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First published: 30 September 2002
Citations: 33
Author for correspondence: Shoei-Yn Lin-Shiau, Institutes of Toxicology and Pharmacology, School of Medicine, National Taiwan University, No.1, Sec 1, Jen-Ai Road, Taipei City, Taiwan 100 (fax 886-2-23410217. e-mail [email protected]).

Abstract

Abstract: Systemic bleeding due to consumption coagulopathy and thrombocytopenia due to activation of procoagulants is the leading manifestation and cause of death in Russell's viper systemic envenoming. Thrombotic occlusion of the blood vessels is rare in cases of snakebite. In this report, two adult patients with Russell's viper systemic envenoming presented multiple cerebral infarctions, digital gangrenes and ischaemic organs in addition to typical clinical manifestations of bleeding diathesis and renal involvement. Our findings in these two special cases suggest that the venom-induced coagulopathy and endothelium damage, predisposed by toxin-induced vasoconstriction, might be the possible mechanism of multiple thrombotic vascular occlusions in systemic envenoming of Formosan Russell's viper.

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