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[Probabilistic treatment with ceftazidime of severe infections in children]
1Service de Consultation, Hôpital Trousseau, Paris.
Insights
Ceftazidime is a key antibiotic for treating infections caused by multidrug-resistant bacteria, particularly Pseudomonas aeruginosa. It is recommended for specific neonatal, pediatric, and surgical infections, often in combination therapy.
Area of Science:
- Infectious Diseases
- Pharmacology
- Bacteriology
Context:
- Ceftazidime is an antibiotic investigated for various infections.
- Its use in bone marrow aplasia and cystic fibrosis is well-studied.
- Emerging resistance necessitates careful antibiotic selection.
Purpose:
- To outline the appropriate use of ceftazidime.
- To identify specific clinical scenarios where ceftazidime is indicated.
- To guide optimal dosing strategies for challenging infections.
Summary:
- Ceftazidime is a "best guess" treatment for suspected multidrug-resistant bacterial infections, especially Pseudomonas aeruginosa.
- Indications include neonatal hospital-acquired infections, pediatric intensive care unit (PICU) sepsis, and surgical infections.
- Specific uses include urinary tract infections, neurosurgical meningitis, and otitis media/mastoiditis, often in combination therapy with high dosages.
Impact:
- Provides guidance on judicious ceftazidime use in critical care settings.
- Highlights its role in combating difficult-to-treat Gram-negative infections.
- Informs clinical decision-making for severe bacterial infections requiring potent antibiotic therapy.
Abstract:
Ceftazidime should only be given as "best guess" treatment in infections suspected of being caused by multiresistant bacteria, and notably Pseudomonas aeruginosa. During the last few years, the use of this antibiotic against infections associated with therapeutic bone marrow aplasia or with cystic fibrosis has been thoroughly investigated. As regards neonatal infections, late (hospital-acquired) infections seem to be the best indication. Other major reasons for prescribing ceftazidime are septicaemias in paediatric intensive care units and in surgery, especially when it is feared that P. aeruginosa might emerge. Urinary infection after surgery for complex urinary tract malformations, meningeal infection in neurosurgery, severe otitis media, suspected mastoiditis and otitis of the newborn are special conditions where ceftazidime can be used as first choice therapy. Ceftazidime may be administered alone in certain circumstances, but it is usually given in combination with another antibiotic. In these severe infections, dosage must be high enough to reach the elevated MIC's required by some strains of Pseudomonas.