TY - JOUR PY - 2005// TI - Funnel-web spider bite: a systematic review of recorded clinical cases JO - Medical journal of Australia A1 - Isbister, Geoffrey K. A1 - Gray, Michael R. A1 - Balit, Corrine R. A1 - Raven, Robert J. A1 - Stokes, Barrie J. A1 - Porges, Kate A1 - Tankel, Alan S. A1 - Turner, Elizabeth A1 - White, Julian A1 - Fisher, Malcolm McD SP - 407 EP - 411 VL - 182 IS - 8 N2 - OBJECTIVE: To investigate species-specific envenoming rates and spectrum of severity of funnel-web spider bites, and the efficacy and adverse effects of funnel-web spider antivenom. DATA SOURCES: Cases were identified from a prospective study of spider bite presenting to four major hospitals and three state poisons information centres (1999-2003); museum records of spider specimens since 1926; NSW Poisons Information Centre database; MEDLINE and EMBASE search; clinical toxinology textbooks; the media; and the manufacturer's reports of antivenom use. DATA EXTRACTION: Patient age and sex, geographical location, month, expert identification of the spider, clinical effects and management; envenoming was classified as severe, mild-moderate or minor/local effects. DATA SYNTHESIS: 198 potential funnel-web spider bites were identified: 138 were definite (spider expertly identified to species or genus), and 77 produced severe envenoming. All species-identified severe cases were attributed to one of six species restricted to NSW and southern Queensland. Rates of severe envenoming were: Hadronyche cerberea (75%), H. formidabilis (63%), Atrax robustus (17%), Hadronyche sp. 14 (17%), H. infensa (14%) and H. versuta (11%). Antivenom was used in 75 patients, including 22 children (median dose, 3 ampoules; range, 1-17), with a complete response in 97% of expertly identified cases. Three adverse reactions were reported, all in adults: two early allergic reactions (one mild and one with severe systemic effects requiring adrenaline), and one case of serum sickness. CONCLUSIONS: Severe funnel-web spider envenoming is confined to NSW and southern Queensland; tree-dwelling funnel webs (H. cerberea and H. formidabilis) have the highest envenoming rates. Funnel-web spider antivenom appears effective and safe; severe allergic reactions are uncommon.

Language: en

LA - en SN - 0025-729X UR - http://dx.doi.org/ ID - ref1 ER -