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Case Report • Rev. Soc. Bras. Med. Trop. 55 • 2022 • https://doi.org/10.1590/0037-8682-0027-2022   copy

When to think about a Lachesis muta envenomation in the Western Brazilian Amazon: Lessons from a case report

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ABSTRACT

In the Brazilian Amazon, envenomations by lancehead pit vipers prevail across the region, while bushmaster (Lachesis muta) envenomations are rarely confirmed. Here, we described a moderate snakebite, diagnosed as a lancehead pit viper envenomation upon admission and treated with four vials of Bothrops antivenom. Blood remained unclottable for 4 days of hospitalization. On day 4, after admission, the patient presented pictures of the perpetrating snake to the hospital staff, which was identified as a Lachesis muta specimen. After administering 10 vials of Lachesis antivenom, blood became clottable 12 hours after treatment. The patient was discharged without complaints.

Keywords:
Snakebite; Lachesis; Antivenom

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