No correlation between the bite location and the clinical course of latrodectism has been identified.
Antivenin administration reduced pain more quickly than in the placebo group in individuals with moderate to severe latrodectism.
Toxic pictures produced spiders bites in Chile: Latrodectism
They are considered highly dangerous as they inject neurotic venom called latrotoxin, which results in the condition latrodectism
1) Envenomation may cause latrodectism, a syndrome characterized by widespread, sustained muscle spasms.
An RCT of 126 patients treated with either IV or IM antivenin for moderate to severe symptoms of redback latrodectism found statistically equal clinical relief of pain at 2 hours (63% vs 53%, respectively; 95% confidence interval, -8% to 26%).
Conditions which should be considered in a differential diagnosis are listed in Table I, where the major symptoms and signs of scorpionism, latrodectism
and neurotoxic cobra bite are compared.
See Table 1 in the scorpion sting article for a comparison of major symptoms and signs of scorpionism, latrodectism
and neurotoxic cobra bite.
Neurotoxic spiders and the syndrome of latrodectism
The black widow spider is considered highly dangerous as it injects neurotic venom called latrotoxin through its bite, which results in the condition latrodectism
Scorpionism and latrodectism
share similar symptoms and signs.