Meningococcal Disease in Children



Background

There are 5 common meningococcal serogroups – A,B,C,W,Y.

In January 2019, the HPSC issued an alert regarding W cases: some of whom presented with septicaemia and gastrointestinal symptoms (abdominal pain, vomiting and diarrhoea). No rash was evident at the time of presentation. These cases were critically unwell with a poor prognosis.


Clinical

History

  • Headache/Photophobia
  • Neck & back stiffness
  • Vomiting/off feeds
  • Lethargy/altered conc
  • Irritability (infant)
  • Fever
  • Rash (meningococcal)

Classic clinical features of meningococcal disease can appear relatively late in the illness, early clinical features include:

  • Leg pains
  • Cold hands & feet
  • Abnormal skin colour

Examination

  • Ensure Airway is clear, breathing pattern ok
  • Circulation pulse rate & vol, BP, cap. refill
  • Pyrexia
  • Skin Changes / Rash (meningococcal)
  • Meningism
  • Bulging Fontanelle
  • ↓ Level Conc
  • Signs of ↑ICP:
    • Fluctuating level of conc
    • ↑BP & relative bradycardia
    • Pupils unequal or focal neurology
    • Seizures or Posturing
    • Papilloedema (late)

Suspect Sepsis if

  • Tachycardia, low volume pulse
  • Capillary refill (>3 sec)
  • Skin to core temp difference
  • Evolving rash
  • Oliguria (<1ml/kg/hr)
  • Hypotension (late sign)

Suspect Cerebral Oedema

  • Na+<135mmol/L & signs of ↑ICP
  • or
  • Na+<130mmol/l without clinical signs

Beware

Bad Prognostic Signs

  • Differential skin/core temp > 3O°C (children)
  • SBP < 85 mm Hg (age > 4yrs)
  • SBP < 75 mm Hg (age < 4yrs)
  • WCC <10.0 x109/L
  • Meetab. ↓pH (BE > -5.0 mmol/l or Lactate climbing)
  • Coagulopathy
  • Rapidly evolving characteristic rash
  • Glasgow meningococcal prognostic score (GMPS) > 8

Algorithm

Meningococcal DiseaseFlow Diagram small

Pre-hospital Antibiotics

The doses of benzylpenicillin (ideally IV but can give IM, although may not be as effective) for GP use in suspected meningococcal infection are tabled:

Adults & children > 10 yrs1200 mgs
Children 1 - 9 yrs600 mgs
Children < 1 yr300 mgs


Content by Dr Íomhar O' Sullivan. Last review Dr ÍOS 20/08/23.