January 30, 2020
P reparing for Cardiac Emergencies: Pediatric ECGs
1. February is PEDReady Heart Month: Time to Get Prepared!
Do you know how to read the electrocardiogram (ECG) of a 6-day, 6-month or 6-year-old child? 

Do you have equipment to defibrillate or shock a 6-month-old patient?

Do you know the name and contact number of the closest pediatric cardiologist or referral center?

Background and Basics:
  • Pediatric cardiac emergencies are very different from adults, and pediatric ECGs are performed in a small percentage of EMS transports and ED visits for children
  • A significant proportion of pediatric ECGs are performed in adolescents or for chief complaints of chest pain and syncope
  • Infants and younger children tend to have ECGs performed for evaluation of suspected congenital heart disease, ingestions, altered mental status and dysrhythmias.
  • In infants and young children, try to decrease movement and ECG artifact by:
  • allowing a parent or caregiver to hold them (if possible) or lie beside them
  • allowing the child to take a bottle, use a pacifier, or a sucrose containing solution
  • using distraction techniques such as music, lighted toy, movie

Key pediatric ECG indications include:
  • Known cardiac history or familial history of sudden cardiac death
  • Cyanosis and or apnea
  • Newborns and infants presenting with irritability, tachypnea, poor feeding, or failure to thrive.
  • Loss of consciousness
  • Drug ingestion or other poisoning
  • Dysrhythmia
  • Chest pain on exertion
  • Suspected Kawasaki’s disease

Interpretation of pediatric ECGs must account for age. Normal values for things like the QRS axis vary significantly from adults. Many differences are due to the right ventricular dominance in infants, and the evolution to adult dynamics.

There is no way to memorize all pediatric cardiology and ECG values. The rest of this PEARL will focus on pediatric ECG basics and resources.
In the fetus, circulation through the lungs is mostly bypassed due to the patent ductus arteriosus (PDA). This causes a right ventricular dominance with the right ventricle larger and thicker than the left. After birth, the PDA closes and the left ventricle gradually becomes dominant.

Congenital heart malformations occur in 8 out of every 1,000 live births and can cause conduction abnormalities, heart chamber enlargements and rhythm disturbances.

Listed below are features often seen in pediatric ECGs in comparison to adult ECGs (see resource section for specific values):
  • Faster heart rate
  • Sinus arrhythmia
  • Rightward QRS axis (up to 3 months and again in adolescence)
  • T wave inversions in the right precordial leads
  • Dominant R wave in V1
  • RSR’ pattern in V1
  • Shorter PR interval and QRS duration
  • Slightly longer QTc

The best way to “know” abnormal is to be familiar with what “normal” pediatric ECGs look like. See examples below: 
Normal ECG: Age 1 Year
Normal ECG: Age 2 Years
Normal ECG: Age 5 Years
Normal ECG: Age 10 Years
Resources for Pediatric ECG Interpretation:
a) Circulation panel of Pediatric ABCs and More resource:
b) MacPeds Pediatric ECG Survival Guide . First Edition 2018. Editors: Ahmad Jaafar and Dragos Predescu.
  • This is an excellent summary and teaching resource! From our Canadian pediatric friends at McMaster University.
c) EMRA Pediatric ECG Pocket Card —included in our FL PEDReady Toolkits. The EMRA publication EM Resident includes a review on The Pediatric ECG and Long QT Syndrome.
d) Life in the Fastlane: Paediatric ECG Interpretation. A great free access overview.

e) PEM Playbook (podcasts): EKG Killers Parts One and Two.

f) ECG Guru:  ECGGuru.com
  • Dawn Altman, RN, EMT-P founded the ECG Guru website to provide free teaching materials to other instructors who teach ECG and cardiac topics. All content on the ECG Guru is free of charge and free of copyright for use in a classroom setting. Email Altman at ECGGuru@gmail.com.
  • Dawn also wrote an excellent article for EMS World: Introduction to Pediatric ECG
Please email us at pedready@jax.ufl.edu if you have other pediatric cardiology or ECG resources or cases to share.
Check out these great resources and spend the month of February getting your ED or agency PEDHeartReady!
2. Upcoming Events
Emergency & Trauma Symposium: New Vision in Emergency and Trauma Care
Feb. 13-14, 2020 from 7:00-5:00 pm
Hosted by: UF Health 

Learn about the latest updates in trauma and emergency medicine (adult and pediatrics) while earning free CME/CEUs, including trauma-related credits. This conference caters to the entire spectrum of providers: physicians, PAs, NPs, nurses and pre-hospital personnel.
Thanks for being a Pediatric Champion!
The Florida PEDReady Program
pedready@jax.ufl.edu | 904-244-8617