BRUE

Brief Resolved Unexplained Event - a diagnosis of exclusion
History - Awake/asleep (sleep-related breathing disorders include OSA and central sleep apnoea)
- Position (supine/prone/side)
- Muscle tone (stiff/floppy/normal), Movement, incl. eyes (purposeful, repetitive), Respiratory effort (incl. distress, SOB, pauses, apnoea)
- Skin and lip colour (incl. cyanosis, pallor, plethora)
- Choking/gagging/vomiting
- Duration and how it stopped (self-resolved/repositioned/ stimulated/CPR)
- Condition after event and whether back to normal
- Preceding trauma or recent head injury
- Any objects nearby that could cause suffocation
- Feeding history

Past medical history:
- Gestational age (infants born younger than 34 weeks have a high prevalence of apnoea of prematurity)
- Perinatal history, including NICU/SCBU
- Previous unexplained episodes
- Previous resuscitation
- Recent illness
- - Family history to include:
- SUDIC, BRUE in siblings
- Cardiac problems including arrhythmias
- Parental consanguinity
- Social history
Examination - Full ABCDE assessment – consider differential diagnoses. Remember to test a capillary blood glucose.
- Fully expose the child to check for bruising, bleeding from nose/mouth, torn frenulum and subconjunctival haemorrhage
- Plot weight, length and head circumference
- Note any dysmorphic features that might indicate underlying congenital abnormalities
Diagnostic investigations High risk patients - ECG (QT interval), glucose
Low risk - none required
Definition Age <12 months
<1 minute
Return to baseline state
In a medically well child
Clinical presentation >= 1 of:
– Cyanosis or pallor
– Absent, decreased, or irregular breathing
– Marked change in tone (hyper- or hypotonia)
– Altered level of responsiveness
Ddx Viral bronchiolitis
arrhythmias, QT prolongation
GORD (due to laryngospasm)
seizures, neuromuscular disorders
IEM
non-accidental injury
toxins
Management Low risk patients can potentially be discharged with advice and safety netting.
- Age >60 days
- Gestational age ≥32 weeks and post-conceptional age ≥45 weeks
- Occurrence of only 1 BRUE (no prior BRUE ever and not occurring in clusters)
- Duration of BRUE <1 minute
- No cardiopulmonary resuscitation by a trained medical provider
- No concerning historical features
- No concerning physical examination findings

Consider Pertussis if vax history is dodgy
Consider always non-accidental injury