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Delayed antivenom for life-threatening tiger snake bite: Lessons learnt.

James Tibballs¹, Andrew M Padula², Kenneth D Winkel³

¹Paediatric Intensive Care Unit, Royal Children's Hospital, Melbourne, Australia.

Anaesthesia and Intensive Care

|October 5, 2020

Summary

This summary is machine-generated.

Delayed antivenom therapy for tiger snakebite can be effective, even after 48 hours. This case highlights the need for further research into optimal venom-antivenom interactions for effective snakebite treatment.

Keywords:

Medicine acute poisoning anaesthesia envenomation environmental injuries intensive care paediatric intensive care pharmacodynamics and drug monitoring pharmacokinetics pharmacological considerations poisoning toxicology

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Area of Science:

Toxicology
Pharmacokinetics
Clinical Medicine

Background:

Snakebite envenomation presents significant clinical challenges.
Tiger snake (Notechis spp.) venom can cause severe systemic effects, including respiratory failure, rhabdomyolysis, and consumption coagulopathy.
The optimal timing and dosage of antivenom for tiger snake envenomation remain areas for further investigation.

Purpose of the Study:

To report a case of severe tiger snake envenomation treated successfully with delayed antivenom administration.
To emphasize the importance of recognizing and managing severe envenomation promptly.
To highlight the need for pharmacokinetic studies on venom-antivenom interactions.

Main Methods:

A case study of an adolescent with a tiger snakebite.
Clinical monitoring of envenomation effects.
Measurement of tiger snake venom antigen and antivenom levels in blood.
Administration of tiger snake antivenom 48 hours post-bite.

Main Results:

The patient experienced respiratory failure, rhabdomyolysis, and consumption coagulopathy.
Tiger snake venom antigen was detectable before antivenom administration but not afterward.
Antivenom was measurable in the patient's blood for nine days post-administration.
The patient recovered following delayed antivenom therapy.

Conclusions:

Delayed antivenom administration can facilitate recovery from severe tiger snake envenomation.
This case underscores the necessity for further research into the pharmacokinetics of venom-antivenom interactions.
Accurate dosing and timing of antivenom are critical for optimizing treatment outcomes in snakebite victims.