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Background and Objective: In the European Union, the record of cocaine-related seizures indicates an expanding supply. The purity has also been increasing. The health impact of these trends remains poorly documented, in particular, the changes and clinical manifestations of intoxication in young children. We attempted to evaluate the trend in French pediatric admissions for cocaine intoxication/exposure over an 11-year period (2010-2020)., Methods: A retrospective, national, multicenter, study of a pediatric cohort. All children less than 15 years of age admitted to a tertiary-level pediatric emergency unit for proven cocaine intoxication (compatible symptoms and positive toxicological screening) during the reference period were included., Results: Seventy-four children were included. Forty-six percent were less than 6 years old. Annual admissions increased by a factor of 8 over 11 years (+700%) and 57% of all cases were admitted in the last two years. The main clinical signs were neurologic (59%) followed by cardiovascular symptoms (34%). Twelve patients were transferred to the pediatric intensive care unit. Factors significantly associated with the risk of being transferred to the pediatric intensive care unit were initial admission to the pediatric resuscitation area ( P  < 0.001), respiratory impairment ( P  < 0.01), mydriasis ( P  < 0.01), cardiovascular symptoms ( P  = 0.014), age of less than 2 years ( P  = 0.014). Blood and/or urine toxicological screening isolated eighteen other substances besides cocaine in 46 children (66%)., Conclusion: Children are collateral victims of the changing trends in cocaine availability, use and purity. Admissions of intoxicated children to pediatric emergency departments are more frequent and there is an increase in severe presentations. Therefore, this is a growing public health concern.

Importance: The procalcitonin (PCT) assay is an accurate screening test for identifying invasive bacterial infection (IBI); however, data on the PCT assay in very young infants are insufficient., Objective: To assess the diagnostic characteristics of the PCT assay for detecting serious bacterial infection (SBI) and IBI in febrile infants aged 7 to 91 days., Design, Setting, and Participants: A prospective cohort study that included infants aged 7 to 91 days admitted for fever to 15 French pediatric emergency departments was conducted for a period of 30 months (October 1, 2008, through March 31, 2011). The data management and analysis were performed from October 1, 2011, through October 31, 2014., Main Outcomes and Measures: The diagnostic characteristics of the PCT assay, C-reactive protein (CRP) concentration, white blood cell (WBC) count, and absolute neutrophil cell (ANC) count for detecting SBI and IBI were described and compared for the overall population and subgroups of infants according to the age and the duration of fever. Laboratory test cutoff values were calculated based on receiver operating characteristic (ROC) curve analysis. The SBIs were defined as a pathogenic bacteria in positive culture of blood, cerebrospinal fluid, urine, or stool samples, including bacteremia and bacterial meningitis classified as IBIs., Results: Among the 2047 infants included, 139 (6.8%) were diagnosed as having an SBI and 21 (1.0%) as having an IBI (11.0% and 1.7% of those with blood culture (n = 1258), respectively). The PCT assay offered an area under the curve (AUC) of ROC curve similar to that for CRP concentration for the detection of SBI (AUC, 0.81; 95% CI, 0.75-0.86; vs AUC, 0.80; 95% CI, 0.75-0.85; P = .70). The AUC ROC curve for the detection of IBI for the PCT assay was significantly higher than that for the CRP concentration (AUC, 0.91; 95% CI, 0.83-0.99; vs AUC, 0.77; 95% CI, 0.65-0.89; P = .002). Using a cutoff value of 0.3 ng/mL for PCT and 20 mg/L for CRP, negative likelihood ratios were 0.3 (95% CI, 0.2-0.5) for identifying SBI and 0.1 (95% CI, 0.03-0.4) and 0.3 (95% CI, 0.2-0.7) for identifying IBI, respectively. Similar results were obtained for the subgroup of infants younger than 1 month and for those with fever lasting less than 6 hours., Conclusions and Relevance: The PCT assay has better diagnostic accuracy than CRP measurement for detecting IBI; the 2 tests perform similarly for identifying SBI in febrile infants aged 7 to 91 days.