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Adverse drugs reactions (ADR) suspected through phone triage and assessed by medically staffed ambulances: A pilot
Agnes Lillo-Le Louët1, Christine Le Beller1, Fréderic Baud2
1Centre Régional de Pharmacovigilance, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.
Background:
Prompt and definitive diagnosis of adverse drug reactions (ADRs) is a challenge for health care providers. There is a global burden of ADRs worldwide associated with a negative impact on the patient's health, in parallel with increasing costs for the community. This study aims to determine the annual incidence of ADRs in the cohort of patients requiring immediate intervention of the French prehospital emergency medical service (PEMS). The definitive diagnosis of ADR was provided by the follow-up of the entire course of hospitalization from PEMS presentation to final discharge in each suspected case.
Methods:
A retrospective study examining the incidence of ADR at the Paris PEMS was performed in 2015.
Results:
From January the 1st to December the 31st, 2015, 485 cases of suspected ADR were selected. Twenty-eight patients could not be identified at the hospital and were considered as lost to follow-up. For the 457 cases with the final diagnosis and outcome available, 359 had a definitive and new diagnosis of ADR, 9 were related to substance of abuse and alcohol, 14 were duplicates and 75 were excluded by drug causality was ruled out. Long-term follow-up was performed for 359 cases. Among them, 22 patients (6.1%) died of an ADR. Twenty-five severe ADRs were notified for children ages 2 to 16 with a cluster of 9 cases (36%) resulting from an accidental outbreak of poisonings with alimemazine in a classroom. No fatality was reported among children suffering from an ADR.
Conclusion:
The collaboration between PEMS and in hospital Pharmacovigilance Centre is feasible from the PEMS report to the long-term follow-up. The definition of a clinical pattern for some drugs is needed to allow the medical team to anticipate the clinical outcome of the involved patient and therefore adapting the patient's support as soon as possible.
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