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The use and tolerability of Crotalidae Polyvalent Immune FAB (Ovine) in pediatric envenomations
Henry C Farrar1, Taylor Grayham, Branson Bolden
1University of Arkansas for Medical Sciences, Little Rock, AR, USA. farrarhank@uams.edu
Insights
Crotalidae Polyvalent Immune FAB-Ovine (CroFab) is generally safe for children with snakebites. Adverse reactions were mild and did not prevent further use, indicating good tolerability in pediatric patients.
Area of Science:
- Toxicology
- Pediatric Medicine
- Pharmacology
Background:
- Limited data exist on Crotalidae Polyvalent Immune FAB-Ovine (CroFab) use in pediatric crotalid envenomations.
- Assessing the safety and tolerability of CroFab in children is crucial for effective snakebite management.
Purpose of the Study:
- To evaluate the safety and tolerability of CroFab in a pediatric population.
- To analyze adverse drug reactions associated with CroFab administration in children.
Main Methods:
- Retrospective chart review of pediatric patients admitted for snakebite over an 8-year period.
- Analysis of data from 82 pediatric patients who received CroFab for crotalid envenomations.
Main Results:
- Children receiving CroFab often had bites to extremities and more severe envenomations, indicated by longer hospital stays and increased need for surgery.
- Adverse drug reactions occurred in 7.3% of pediatric patients, presenting as mild allergic symptoms.
- Reactions were manageable with minimal intervention and did not preclude further CroFab use.
Conclusions:
- Crotalidae Polyvalent Immune FAB-Ovine (CroFab) is typically well-tolerated in pediatric patients.
- The safety profile of CroFab supports its use in managing crotalid envenomations in children.
- Further research may explore optimal dosing and long-term outcomes in pediatric populations.
Abstract:
There are limited data on the use of Crotalidae Polyvalent Immune FAB-Ovine (CroFab) in the management of crotalid envenomations in children. Thus, the primary objective of this retrospective chart review was to evaluate the safety and tolerability of CroFab in a pediatric population. Over an 8-year time period at this institution, there were 204 admissions for snakebite of which 82 received CroFab. Children who received CroFab were more often associated with bites to the hands and fingers and tended to have more significant envenomations as indicated by longer hospital stays, greater tissue injury, and a tendency to require surgery more often. Six (7.3%) of the 82 patients who received CroFab experienced an adverse drug reaction. Reactions consisted of allergic symptoms that were mild, responded to minimal interventions, and did not limit the subsequent use of CroFab. It is concluded that CroFab use is typically well tolerated in pediatric patients.
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