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Introduction The black widow spider, Latrodectus mactans, stands out as one of the most medically significant arachnids due to its extensive geographic distribution in the United States and its ability to produce a potent neurotoxin, α-latrotoxin. This study aimed to describe the epidemiology of black widow spider exposures by month of exposure, geographic distribution, demographics, symptoms, treatment, and health system resource utilization between 2012 and 2022. Methods This was a retrospective observational study using the US National Poison Data System, the data warehouse of the 55 US poison centers. A descriptive analysis of patient demographic data, month of exposure, clinical effects, level of healthcare received, and medical outcome was performed. Results During the studied period, a total of 15,299 cases of Latrodectus spp exposures were reported to US poison centers. Exposures occurred with higher frequency in warm-weather states and during summer months. Almost half the cases were managed outside a healthcare facility (48.6%). Hospital admission was required for 10.0% of exposures. The most common therapies received were wound care (43.7%) and benzodiazepines (18.6%). Antivenom was administered in 3.4% (n=521) of exposures. Conclusions Poison center data indicate that most black widow spider exposures result in minor consequences. Supportive care is the primary approach for black widow spider bites. Although antivenom use is infrequent, providers may seek administration guidance from toxicologists through local poison centers. This study underscores the pivotal role of poison centers in mitigating unnecessary healthcare visits and subsequent hospitalizations.
Introduction The black widow spider, Latrodectus mactans, stands out as one of the most medically significant arachnids due to its extensive geographic distribution in the United States and its ability to produce a potent neurotoxin, α-latrotoxin. This study aimed to describe the epidemiology of black widow spider exposures by month of exposure, geographic distribution, demographics, symptoms, treatment, and health system resource utilization between 2012 and 2022. Methods This was a retrospective observational study using the US National Poison Data System, the data warehouse of the 55 US poison centers. A descriptive analysis of patient demographic data, month of exposure, clinical effects, level of healthcare received, and medical outcome was performed. Results During the studied period, a total of 15,299 cases of Latrodectus spp exposures were reported to US poison centers. Exposures occurred with higher frequency in warm-weather states and during summer months. Almost half the cases were managed outside a healthcare facility (48.6%). Hospital admission was required for 10.0% of exposures. The most common therapies received were wound care (43.7%) and benzodiazepines (18.6%). Antivenom was administered in 3.4% (n=521) of exposures. Conclusions Poison center data indicate that most black widow spider exposures result in minor consequences. Supportive care is the primary approach for black widow spider bites. Although antivenom use is infrequent, providers may seek administration guidance from toxicologists through local poison centers. This study underscores the pivotal role of poison centers in mitigating unnecessary healthcare visits and subsequent hospitalizations.
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