[Anaphylaxis: clinical and therapeutic care for emergencies].

Anaphylaxis is a severe systemic reaction due to hypersensitivity reactions. The prognosis is threatened by the double risk of airway obstruction and collapse. The need for rapid diagnosis and early treatment represent a challenge for the medical staff. The use of a new diagnostic criteria and classification of this reaction help to standardize the treatment. This is based on the administration of epinephrine and vascular filling. The titration of epinephrine depending on the grade of gravity allows controlling the side effects.