Ten years of snake bites at Fremantle Hospital

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Abstract
Seventy-six patients (30% children) were admitted to Fremantle Hospital over 10 years with suspected snake bite. Twenty-nine patients were definitely bitten, with 26 bites being witnessed. Of the 13 patients definitely envenomated, 11 had a coagulopathy although seven were asymptomatic; four other patients may have been envenomated. The dugite (Pseudonaja affinis) was probably responsible for most envenomations. Eleven of the 13 envenomated patients received antivenom (six brown snake, four polyvalent and one tiger snake antivenom). The patient envenomated by the tiger snake (Notechis ater occidentalis), a 13-year-old girl, was initially incorrectly treated with brown snake antivenom at a country hospital, and did not receive appropriate antivenom until 50 hours after the bite. She developed profound paralysis, rhabdomyolysis and renal failure, and required prolonged ventilation during her 53-day hospital admission, but survived without disability. Snake bite wounds should not be washed, so that venom can be identified from the wound. Attempts to kill snakes are dangerous, often leadig to bites on the fingers. First aid meaures of a pressure bandage and immobilisation, used in 13 of the 29 cases (45%), should be more widely publicised.