Treatment of Pneumonia in Children
Oral amoxicillin is the first-line antibiotic for children under 5 years with community-acquired pneumonia, while macrolide antibiotics (azithromycin, clarithromycin, or erythromycin) are first-line for children 5 years and older. 1
Age-Based Treatment Algorithm
Children Under 5 Years
- Amoxicillin is the first-choice antibiotic because it effectively targets the majority of pathogens causing pneumonia in this age group, is well-tolerated, and inexpensive 1
- Dosing: 90 mg/kg/day divided in 2 doses for outpatient management 2
- Standard treatment duration is 5 days for most cases 1
Children 5 Years and Older
- Macrolide antibiotics are first-line empirical treatment due to higher prevalence of Mycoplasma pneumoniae and Chlamydophila pneumoniae in this age group 1, 3
- Azithromycin is the preferred macrolide: 10 mg/kg on day 1, then 5 mg/kg/day once daily on days 2-5 3
- Alternative macrolides include clarithromycin (15 mg/kg/day divided in 2 doses) or erythromycin (40 mg/kg/day divided in 4 doses) 3
- For children over 7 years, doxycycline may be used at 2-4 mg/kg/day in 2 doses 3
Pathogen-Specific Modifications
- If Streptococcus pneumoniae is suspected at any age: Use amoxicillin regardless of age 1
- For suspected Mycoplasma or Chlamydia pneumonia: Use macrolide antibiotics with treatment duration of at least 14 days (longer than typical 5-day course) 1, 3
- If Staphylococcus aureus is likely: Use macrolide or combination of flucloxacillin with amoxicillin 1
Severity-Based Treatment Decisions
Mild Pneumonia (Outpatient Management)
- Young children with mild lower respiratory tract symptoms may not require antibiotics 1
- Oral antibiotics are appropriate when the child can absorb oral medications 1
Severe Pneumonia (Hospitalization Required)
Admit to hospital if any of the following are present 2:
- Oxygen saturation <92% or cyanosis
- Respiratory rate >50 breaths/min
- Difficulty breathing or grunting
- Signs of dehydration
- Family unable to provide appropriate observation
Intravenous antibiotics for severe pneumonia include 1, 2:
- Co-amoxiclav (ampicillin-clavulanate)
- Cefuroxime
- Cefotaxime or ceftriaxone
- Add vancomycin or clindamycin if MRSA is suspected 2
Key Severity Predictors
- Hypoxemia (oxygen saturation ≤92%) and chest indrawing/retractions are the strongest predictors of need for major medical interventions 4
- These findings have high specificity (94% or greater) but limited sensitivity (<40%) for ruling out severe disease 4
- Age, vital signs, chest indrawing, and radiologic infiltrate pattern are the strongest predictors of severity 5
Critical Clinical Pitfalls to Avoid
Reassessment Timing
- Re-evaluate at 48 hours if the child remains febrile or unwell after starting treatment 1, 2
- For atypical pathogens (mycoplasma), apyrexia may take 2-4 days, unlike pneumococcal pneumonia where fever resolves in <24 hours 3
- Do not assume treatment failure too early with mycoplasma pneumonia—allow 2-4 days for clinical improvement 3
- Persistent cough does not indicate treatment failure 3
Respiratory Rate Assessment
- Count respiratory rate for a full 60 seconds for accurate measurement 6
- Absence of tachypnea is the best individual finding for ruling out pneumonia 6
Supportive Care Measures
Oxygen Management
- Maintain oxygen saturation above 92% in children who are hypoxic 1, 3, 2
- Provide supplemental oxygen via nasal cannulae, head box, or face mask 2
Symptomatic Treatment
- Antipyretics and analgesics help keep the child comfortable and assist with coughing 1, 3
- Ensure adequate hydration and monitor serum electrolytes in severely ill children 2
- Avoid nasogastric tubes if possible 2
What NOT to Do
Special Populations
HIV-Endemic Areas
- For children in areas of high HIV prevalence or with suspected/diagnosed HIV infection presenting with non-severe pneumonia, amoxicillin is still recommended regardless of co-trimoxazole prophylaxis status 1
- If first-line therapy fails, refer to hospital for HIV testing and broad-spectrum parenteral antibiotics 1
- Children with rapid breathing should be assessed for severe anemia 1
- Any child with pneumonia and severe anemia requires hospital referral 1
Resource-Limited Settings
- In areas where referral is not possible, injectable antimicrobials such as ceftriaxone, penicillin/gentamicin, or chloramphenicol should be used 1