Related Experiment Videos
[Severe pneumococcal meningitis and ceftriaxone allergy]
S Mérat1, J M Rousseau, M Lerecouvreux
1Département d'anesthésie-réanimation, hôpital d'instruction des armées du Val de Grâce, 74, boulevard de Port Royal, 75005, Paris, France. schmart@free.fr
Abstract:
We report the case of a 51-year-old man with an allergy to amoxicillin/acid clavulanique who presented with Streptococcus pneumoniae meningitis. Initial treatment consisted of an association of antibiotics including ceftriaxone. Six days after treatment was initiated the patient developed skin reaction and the diagnosis of allergy to ceftriaxone was established by the dosage of specific IgE. Typically Streptococcus pneumoniae meningitis is treated with vancomycin and a third-generation cephalosporin. This association had to be modified because cross allergy to cephalosporins could have developed in this patient who had previously reacted to penicillins.
Insights
A patient with penicillin allergy developed a ceftriaxone allergy during Streptococcus pneumoniae meningitis treatment. This necessitated altering the antibiotic regimen due to potential cephalosporin cross-reactivity.
Area of Science:
- Clinical Medicine
- Infectious Diseases
- Pharmacology
Background:
- Streptococcus pneumoniae meningitis is a serious infection often treated with vancomycin and cephalosporins.
- Penicillin allergies are common and can complicate treatment choices for bacterial meningitis.
Observation:
- A 51-year-old male with a known amoxicillin/clavulanic acid allergy presented with Streptococcus pneumoniae meningitis.
- Initial treatment involved ceftriaxone, a third-generation cephalosporin, alongside other antibiotics.
Findings:
- The patient developed a skin reaction six days into ceftriaxone treatment.
- Specific IgE testing confirmed an allergy to ceftriaxone.
- This indicated a potential cross-allergy between penicillin and cephalosporins.
Implications:
- This case highlights the risk of cephalosporin allergy in patients with penicillin hypersensitivity.
- Treatment guidelines for Streptococcus pneumoniae meningitis may need to consider antibiotic cross-reactivity.
- Careful antibiotic selection is crucial in patients with a history of drug allergies.