[First and second line antibiotic therapy for bacterial meningitis in infants and children]

J Sarlangue1, C Castella, P Lehours

  • 1Département de pédiatrie médicale, hôpital des Enfants, CHU de Bordeaux, place A.-Raba-Léon, 33076 Bordeaux cedex, France. jean.sarlangue@chu-bordeaux.fr

Insights

Optimizing empirical therapy for infant meningitis is crucial. Treatment adapts based on cerebrospinal fluid analysis, bacterial identification, and susceptibility, guiding antibiotic choices for better outcomes.

Area of Science:

  • Pediatrics
  • Infectious Diseases
  • Pharmacology

Background:

  • Meningitis in infants and children can be severe.
  • Optimized initial empirical therapy is essential.
  • Cerebrospinal fluid (CSF) examination guides treatment.

Purpose of the Study:

  • To outline optimized initial empirical therapy for pediatric meningitis.
  • To describe therapeutic adaptation based on bacterial identification and susceptibility.
  • To provide guidelines for antibiotic selection and duration.

Main Methods:

  • Empirical combination therapy with cefotaxime or ceftriaxone and vancomycin for suspected pneumococcal meningitis.
  • Third-generation cephalosporins for Neisseria meningitidis or Haemophilus influenzae.
  • Addition of aminoglycosides for Enterobacteriaceae, especially in infants under 3 months.

Main Results:

  • Standard first-line treatment involves cefotaxime/ceftriaxone plus vancomycin if pneumococcal meningitis is suspected.
  • Tailored therapy based on Day 2 clinical and bacteriological response.
  • Specific protocols for pneumococcal meningitis based on MIC values and duration of treatment (10 or 14 days).
  • Amoxicillin with gentamicin or cotrimoxazole recommended for listeriosis.

Conclusions:

  • Initial empirical therapy for pediatric meningitis requires careful optimization.
  • Treatment adaptation based on CSF analysis, bacterial identification, and susceptibility is key.
  • Specific antibiotic regimens and durations are recommended for different causative agents and resistance patterns.

Related Concept Videos

Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis II: Pathophysiology01:26

Bacterial Meningitis II: Pathophysiology

Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Bacterial Meningitis01:24

Bacterial Meningitis

Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Viral Meningitis01:18

Viral Meningitis

Viral meningitis is the most common form of meningitis and is often referred to as aseptic meningitis to indicate the absence of bacterial involvement. It is generally milder than bacterial meningitis, with symptoms including fever, headache, stiff neck, drowsiness, nausea, photophobia, and vomiting. Rarely, more severe manifestations or death may occur. Common causative agents include enteroviruses, particularly coxsackie A and B viruses and echoviruses, all members of the Enterovirus genus...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...