Pneumonia

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Description 

  • Pneumonia is inflammation of the lung parenchyma. Both bacteria and viruses are important causes of pneumonia.
  • Bacterial causes are the most common in HIV-infected children. Common causes are; Streptococcus pneumoniae, Haemophilus influenzae, Staphylococcocal aureus and Mycoplasma pneumoniae.
  • Common viral causes include respiratory syncytial virus, adenovirus, cytomegalovirus

Signs and Symptoms

  • Fever above 38 degrees Celsius
  • Cough
  • Difficulty breathing
  • Increased respiratory rate of > 60 breaths in an infant and >50 breaths/min in older children
  • Severe chest indrawing
  • Reduced level of consciousness
  • Severe acute malnutrition
  • Seizures
  • Vomiting and poor feeding

Cut offs for fast breathing: 

Age

Cut offs for fast breathing

< 2 months

60 breaths/min or more

2 – 12 months

50 breaths/min or more

12 Months - 5 Years

40 breaths/min or more

WHO Classification of pneumonia:

Category

Characteristics

No Pneumonia

No signs of Pneumonia

Pneumonia

Immune competent child aged 2 months and above.

Tachypnoea:

  • RR > 50 (2-12 months)
  • RR> 40 (1-5 yrs)
  • Lower chest wall indrawing

Severe Pneumonia or Very Severe Disease

Infants under 2 months: Any Danger signs.

  • Lower chest wall indrawing
  • Tachypnoea > 60/minute
  • HIV Exposed or Infected Infants
  • Malnourished children

Indications for admission

  • Cyanosis, SpO2 < 92%
  • Increased respiratory rate
  • Subcostal recession
  • Intermittent apnoea, grunting (infants)
  • Poor feeding
  • Convulsions
  • Restlessness or agitation
  • Signs of dehydration
  • Unconscious or lethargic
  • Capillary refill time >3 seconds

Investigations

  • Chest x-ray
  • FBC, ESR
  • Urea, electrolytes
  • Blood culture

Treatment

  • Oxygen by nasal cannula or mask
  • IV fluids if required should be < 2/3 of requirements (risk of SIADH in hypoxic children)
  • Antipyretic and analgesia as indicated.

Antibiotic therapy

Drugs

Classification

Amoxicillin or Amoxicillin and Clavulanate

  • Amoxicillin 40 -80mg/kg in 3 divided doses OR
  • Co-Amoxiclav 45mg/kg of Amoxicillin component 8 hourly

Pneumonia

                     

1st Line

0-3 months

Benzylpenicillin 50,000 IU/kg/dose every 6 hours PLUS Gentamicin 7.5 mg once a day or 3.75mg/kg 12 hourly.

More than 3 months

Benzylpenicillin 50,000 IU/kg/dose every 6 hours PLUS Gentamicin 7.5 mg once a day or 3.75mg 12 hourly.

2nd line

Ceftriaxone 50-80 mg/kg/dose once daily IV or Cefotaxime 50 mg/kg 8 hourly IV.

If no improvement and the infant with HIV infection or exposure, consider adding PCP therapy with high dose IV/PO cotrimoxazole (20 mg/kg/day of trimethoprim)

Severe Pneumonia

In suspected staphylococcus pneumonia, add IV Cloxacillin 12.5mg/kg- 25mg/kg 6 hourly.

Macrolides should be considered in school-going children and adolescents who do not improve on 1st line treatment.

Erythromycin (oral)

  • 1month – 2 years: 125 mg 6 hourly
  • 2 – 8 years: 250 mg 6 hourly
  • 8 – 18 years: 250-500 mg 6 hourly

Azithromycin (oral)

  • 6 months-2 years: 10 mg/kg once a day.
  • 3 – 7 years: 200 mg once a day.
  • 8 – 11 Years: 300 mg once a day.
  • 12 – 14 years: 400 mg once a day.
  • >14 years: 500 mg once a day.