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Medical Toxicology Consultations and Mortality Among Patients With Poisonings in the PICU
Paul M Wax1,2, Rachel E Culbreth1, Jeffrey Brent3,4
1American College of Medical Toxicology, Phoenix, Arizona.
Insights
Medical toxicology consultations significantly reduce mortality and length of stay in pediatric intensive care units (PICUs) for poisoned children. These consultations offer life-saving interventions, especially in severe poisoning cases.
Area of Science:
- Pediatric critical care medicine
- Medical toxicology
- Public health
Background:
- Poisonings are a major cause of preventable child mortality and morbidity.
- Pediatric intensive care units (PICUs) manage complex pediatric poisoning cases.
- Medical toxicologists are specialized physicians for poisoning treatment, but not universally available.
Purpose of the Study:
- To evaluate the impact of medical toxicology consultations on mortality and length of stay for pediatric patients with toxicological exposures.
Main Methods:
- Secondary analysis of a cross-sectional registry (Virtual Pediatric System) of PICU admissions from 135 US sites (January 2019 - June 2023).
- Included patients with toxicological exposures admitted to participating PICUs.
- Used multilevel models to assess associations between medical toxicology consultations and outcomes, adjusting for covariates.
Main Results:
- Medical toxicology consultations were associated with a 64% lower odds of death in the PICU and a 61% lower odds of overall hospitalization mortality.
- Consultations were linked to a 15% reduction in PICU length of stay and a 10% reduction in overall hospital length of stay.
- Patients receiving consultations had similar baseline mortality risk compared to those without.
Conclusions:
- Medical toxicology consultations are associated with significantly lower mortality and shorter lengths of stay for pediatric patients with toxicological exposures.
- These findings suggest that medical toxicology consultations can provide life-saving treatment and improve outcomes in severe pediatric poisoning cases.
- Increased availability of medical toxicology expertise in PICUs may enhance patient care and reduce preventable deaths.
Importance:
Poisonings are a leading cause of preventable mortality and morbidity among children. Pediatric poisonings are commonly managed in pediatric intensive care units (PICUs) and may require complex treatment and specialized evaluation. Physicians specializing in medical toxicology are trained to treat poisoned patients of all ages; however, they are not universally part of the medical staff across hospital systems.
Objective:
To determine if there is a difference in mortality and length of stay for patients with toxicological exposures who receive a medical toxicology consultation.
Design, Setting, And Participants:
This is a secondary analysis of an ongoing, cross-sectional registry of patients admitted to PICUs from January 2019 to June 2023 as part of the Virtual Pediatric System (VPS), a database of PICU admissions across 135 medical sites in the US. Patients with toxicological exposure who were admitted to PICUs that participate in the VPS database were included. Data analysis occurred from May to August 2024.
Exposures:
Medical toxicology consultations.
Main Outcomes And Measures:
The primary outcome was mortality in the PICU and in the hospital overall. Secondary outcomes were length of stay in the PICU and in the hospital. Multilevel models were used to assess associations of toxicology consultations with the primary and secondary outcomes.
Results:
There were a total of 52 836 patients with toxicological exposures (29 867 aged 12 to <21 years [56.5%]; 29 401 female [55.6%]), including 2857 (5.4%) patients with medical toxicology consultations and 49 979 (94.6%) without a consultation. Patients who received medical toxicology consultations had similar risk of mortality at baseline, as measured by the Pediatric Risk of Mortality, compared with those without consultations. After adjusting for severity of illness, poisoning type, and other covariates, medical toxicology consultations were associated with 64% lower odds of death in the PICU (adjusted odds ratio, 0.36; 95% CI, 0.20 to 0.63) and 61% lower odds of mortality at any time during the hospitalization (aOR, 0.39; 95% CI, 0.24 to 0.64). Additionally, medical toxicology consultations were associated with a 15% reduced PICU length of stay (log estimate, -0.16; 95% CI, -0.21 to -0.11) and 10% reduced hospital length of stay (log estimate, -0.10; 95% CI, -0.14 to -0.06) after adjusting for all covariates and differences across hospital sites.
Conclusions And Relevance:
In this study of patients with toxicological exposures requiring PICU care, having a medical toxicology consultation was associated with lower mortality and shorter LOS compared with not having a consultation, which suggests that medical toxicology consultations may provide life-saving treatment, particularly for the most severe poisonings in the PICU.
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