Snake TEG

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Hematologic abnormalities are the most common effects of snake envenoming globally. Venom-induced consumption coagulopathy (VICC) is the commonest and most important. Other hematologic abnormalities are an anticoagulant coagulopathy and thrombotic microangiopathy. Venom-induced consumption coagulopathy is a venom-induced activation of the clotting pathway by procoagulant toxins, resulting in clotting factor consumption and coagulopathy. The type of procoagulant toxin differs between snakes and can activate prothrombin, factor X, and factor V or consume fibrinogen...

STUDY OBJECTIVE: We determine the frequency and severity of abnormal laboratory measures of coagulation after suspected or known copperhead (Agkistrodon contortrix) envenomation. METHODS: We identified the charts of venomous snakebites in children presenting to St. Louis Children's Hospital over a period of time greater than 14 years and of all venomous snakebites in adults presenting to Barnes-Jewish Hospital over a period of time greater than 11 years. We identified all known or suspected copperhead snakebites...

BACKGROUND: The optimal management of children with snake bite injuries is not well defined. The purpose of this study was to review the use of antivenom, diagnostic tests, and antibiotics in children bitten by venomous snakes in a specific geographic region (Southeast Texas). METHODS: This is a retrospective single-center review of all patients with snake bite injury from 1/2006 to 6/2012. An envenomated bite was defined as causing edema, discoloration of the skin, necrosis, or systemic effects...

The most common coagulopathy associated with snake envenoming worldwide is venom-induced consumption coagulopathy (VICC), which results from activation of the coagulation pathway by snake toxins including thrombin-like enzymes, prothrombin activators, and factor X activators. VICC has often been likened to disseminated intravascular coagulation (DIC) because of the elevated D-dimer, prolonged prothrombin time, and low fibrinogen. However, VICC is not characterized by other important features of DIC, such as evidence of systemic microthrombi and end-organ failure...