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Brief Resolved Unexplained Event (BRUE)

Brief Resolved Unexplained Event (BRUE) is now the recommended term for ALTE (Apparent Life Threatening Event).

Definition:

BRUE is defined as an episode in an infant less than 12 months old characterized by: 

  • < 1 minute duration (typically 20-30s)
  • Followed by return to baseline state
  • Not explained by identifiable medical conditions

Includes one or more of the following:  

  • Central cyanosis/pallor
  • Absent, decreased or irregular breathing
  • Marked change in tone (hyper or hypotonia)
  • Altered level of consciousness

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Limping Child

This is a relatively common  presentation within the ED that has a myriad of possible diagnoses ranging from sprain to malignancy. One thing to remember is that patients and relatives will look for a traumatic reason for limb pain, and may link it to minor injuries that would not have caused it.  Read more

Paediatric ECG

Use the following chart as a quick checklist to review what’s normal and what’s not in a paediatric ECG. 

Remember:

  • Lead V4R in under5’s
  • Manually calculate QTc
  • WPW needs referral for ablation – increase risk of sudden death

If in any doubt discuss with paediatric registrar/senior. If in need of urgent interven:on then contact the paediatric cardiology team in LGI.

This website interpretation tool makes this even easier!

1. Placement of Leads: Precordial Leads

In young children, the right ventricle normally extends to the right side of the sternum. To appropriately display right ventricular potentials, ECGs for children in the under five-year age group must include an alternate lead (‘V4R’) on the right side of the chest at a point analogous to the left sided V4.

2. P Waves:

3. Axis:

In utero- high pulmonary pressures and a relatively thick Right Ventricle (RV) -> Initial Right Axis on ECG is normal and resolves after the first 6 months of life

QRS Axis Deviation

  • Chest leads in wrong position

     

RAD:

  • Newborns
  • RVH secondary to Right ventricular outflow tract obstruction eg: Pulmonary
    Stenosis ,Tetralogy Of Fallot, Noonans (characterized by mildly unusual facial features, short stature, heart defects, bleeding problems, skeletal malformations, and many others)
  • RBBB

 

LAD:

  • LBBB
  • LVH secondary to LVOTO (Left Ventricular Outflow Tract Obstruction) e.g. Aortic Stenosis, HOCM

 

Superior Axis

  • AVSD (Atrio ventricular septal defect – Trisomy 21)
4. QTc:

Manually calculate QTc – HERE

Normal QTc:

  • Infants less than 6 months = < 0.49 seconds.
  • Older than 6 months = < 0.44 seconds.

QTc is prolonged in:

  • Hypocalcaemia
  • Myocarditis
  • Long QT syndromes such as Romano-Ward Drugs

QTc is short in:

  • Hypercalcaemia
  • Congenital short QT syndrome
5. Ventricular Hypertrophy

6. T waves:
  • The precordial T-wave configuration changes over time
  • For the first week of life, T waves are upright throughout the precordial leads.
  • After the first week, the T waves become inverted in V1-3 (= the “juvenile T-wave pattern”)
  • This T-wave inversion usually remains until ~ age 8; thereafter the T waves become upright in V1-3.
  • However, the juvenile T-wave pattern can persist into adolescence and early adulthood (= “persistent juvenile T waves”).

Tall, peaked T waves are seen in:

Hyperkalaemia, Dilated LV (volume overload), Benign early repolarisation

 

Flat T waves are seen in:

Normal newborns, Hypothyroidism, Hypokalaemia, Pericarditis, Myocarditis

7. ST Segment:

Some ST changes may be normal:

  • Limb lead ST depression or elevation of up to 1mm (up to 2mm in the left precordial leads).

  • J-point depression: the J point is depressed without sustained ST depression, i.e. upsloping ST depression

  • Benign early repolarisation in adolescents: the ST segment is elevated and concave in leads with an upright T wave.

 

 

Others are pathological:

  • A downward slope of the ST followed by a inverted T.

  • A sustained horizontal ST segment depression

     

 

Pathological ST segment changes are commonly associated with T wave changes and occur in:

  • Pericarditis.

  • Myocardial ischaemia or infarction.

  • Severe ventricular hypertrophy (ventricular strain pattern)

Thanks to the paediatric dept for supplying the guidance –  trust PDF here

Neonatal Seizures

Seizures are a common neurological emergency in the neonatal period, occurring in 1–5 per 1000 live births.1 The majority of neonatal seizures are provoked by an acute illness or brain insult with an underlying aetiology either documented or suspected, that is, these are acute provoked seizures (as opposed to epilepsy). They are also invariably focal in nature.

Clinical diagnosis of neonatal seizures is difficult. This is in part because there may be no, or very subtle, clinical features, and also because neonates frequently exhibit non-epileptic movements that can be mistaken for epileptic seizures.

If interested the full guideline pan Yorkshire Neonatal Seizure Guideline can be found here

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