Paeds · investigations-procedures-and-technology
Echocardiography fundamentals for general paediatricians
Also known as Paediatric echocardiogram · Children's echo · Transthoracic echocardiography in children · Paediatric cardiac ultrasound · Echo report interpretation · Focused cardiac ultrasound in children
Fellowship guide to echocardiography fundamentals for the general paediatrician. Covers what each echo modality shows (two-dimensional anatomy, M-mode dimensions, colour and spectral Doppler flow and gradients), the standard paediatric imaging windows and the comprehensive transthoracic study, Z-score normalisation against body size, the high-yield indications (pathological murmur, cyanosis, heart failure, syncope with red flags), the modified Bernoulli equation and what a valve gradient means, how to read a paediatric echo report systematically, when a focused point-of-care cardiac ultrasound answers a binary question, the echo features of duct-dependent critical congenital heart disease and its prostaglandin resuscitation, and the boundary between the general paediatrician's competence and the paediatric cardiologist's.
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Target exams
Red flags
- A duct-dependent lesion on a neonatal echo — any lesion whose systemic or pulmonary circulation depends on a patent ductus arteriosus (hypoplastic left heart, critical aortic stenosis, coarctation, interrupted aortic arch, pulmonary atresia, severe tetralogy) collapses when the duct closes in the first days of life, presenting as shock and acidosis, and demands immediate intravenous prostaglandin E1 before transfer to a cardiac centre
- A pericardial effusion with clinical tamponade on echo — chamber collapse in diastole, a dilated inferior vena cava, and respiratory variation of inflow are the echocardiographic signatures of haemodynamically significant tamponade and mean the general paediatrician must escalate to urgent pericardiocentesis or cardiology-led drainage rather than observe
- Severe ventricular dysfunction on echo in a child with heart failure — a fractional shortening well below the normal range or a globally hypokinetic, dilated left ventricle in a tachypnoeic, hepatomegaly-positive infant is cardiomyopathy or myocarditis until proven otherwise and needs urgent cardiology referral
- Elevated pulmonary artery pressure signs on echo — a tricuspid regurgitation jet velocity above 2.8 to 3.0 metres per second, flattening of the interventricular septum, or a short pulmonary acceleration time suggest pulmonary hypertension and change the child's anaesthetic risk, exercise advice, and referral pathway
- An abnormal coronary artery in a child with Kawasaki disease — a coronary Z-score of 2.5 or above (aneurysm territory), or any giant aneurysm, changes the management from aspirin alone to anti-inflammatory escalation, anticoagulation, and long-term cardiology surveillance
Life stages
Care settings
Clinical exam formats
Board mappings
- Procedures and investigations
- Order and interpret a paediatric echocardiogram appropriately
- Knowledge of echo modalities and the Z-score concept
- Current 2026 PREP curriculum — Learning goal 11: Investigations and procedures
- Renewed curriculum for first-year trainees from 2027 — Learning goal 11: Investigations and procedures
- Recognise the echo features that demand urgent cardiology referral
- Written Examination
- Clinical Applications
- Cardiology and cardiac investigations requiring echo report interpretation
- Short Cases
- Investigation interpretation and procedural skills
- Communication and patient-safety scenarios
- 11. Investigating and managing paediatric presentations
- Level 2: Requests and interprets a paediatric echocardiogram with appropriate supervision
- Patient safety: recognising the abnormal echo report and the appropriate referral threshold
- Applied Knowledge in Practice (AKP)
- Foundations of Practice (FOP)
- Cardiology: echo modalities, Z-scores, indications, and the abnormal paediatric echo report
- Clinical
- Investigation interpretation scenarios
- Safe and appropriate cardiac investigation skills
- General Pediatrics Content Outline — Cardiology: echocardiography interpretation and indications
- General Pediatrics Content Outline — Procedural skills: focused cardiac ultrasound principles
- General Pediatrics EPA: Request and interpret a paediatric echocardiogram
- Patient Care 3: Procedural skills
- Medical Knowledge 1: Clinical knowledge
- Systems-Based Practice: appropriate investigation and timely cardiology referral
- Medical Expert
- Communicator
- Pediatrics: Core EPA — Request and interpret a paediatric echocardiogram
Overview & Definition
Picture the six-week-old infant referred for a heart murmur who feeds well and grows normally, the toddler with Kawasaki disease whose paediatrician needs to know whether the coronaries are involved, and the neonate who turns grey and breathless on day three of life as the ductus arteriosus closes. In each case the echocardiogram is the investigation that answers the structural and functional question, and the general paediatrician must understand what it can and cannot show. That is the territory this page owns. [1] [9]
An echocardiogram is the non-invasive, real-time ultrasound examination of the heart. A piezoelectric transducer placed on the chest wall emits and receives high-frequency sound waves — typically in the 2 to 12 megahertz range, with higher frequencies chosen for smaller children to trade depth penetration for the finer spatial resolution their thin chest walls allow — and the returning echoes are reconstructed into moving images of cardiac structure and blood flow. A comprehensive paediatric transthoracic echocardiogram sequences several imaging modalities through a standard set of acoustic windows to build a complete picture of anatomy, chamber size, ventricular function, valve competence, blood flow, and haemodynamics. [1] [12]
What distinguishes the paediatric echocardiogram from the adult study is the central role of congenital heart disease and the dependence of every measurement on body size. A child's heart is small and growing, so a left ventricular dimension of 30 millimetres is normal in a ten-year-old but grossly dilated in a six-month-old; the discipline of paediatric echo is to normalise every dimension against the child's body surface area and express it as a Z-score. The fellowship skill being tested is knowing when to order an echo, what each modality and measurement tells you, how to read the report systematically, and which findings the general paediatrician must escalate immediately rather than wait for routine clinic review. [1] [7]
References12ShowHide
- [1]Lopez L, Saurers DL, Barker PCA, et al. Guidelines for Performing a Comprehensive Pediatric Transthoracic Echocardiogram: Recommendations From the American Society of Echocardiography J Am Soc Echocardiogr, 2024.PMID 38309834
- [2]Via G, Hussain A, Wells M, et al International evidence-based recommendations for focused cardiac ultrasound J Am Soc Echocardiogr, 2014.PMID 24951446
- [3]McNamara PJ, Jain A, El-Khuffash A, et al Guidelines and Recommendations for Targeted Neonatal Echocardiography and Cardiac Point-of-Care Ultrasound in the Neonatal Intensive Care Unit: An Update from the American Society of Echocardiography J Am Soc Echocardiogr, 2024.PMID 38309835
- [4]Lopez L Pediatric echocardiography quality improvement J Am Soc Echocardiogr, 2012.PMID 23200424
- [5]Camarda JA, Patel A, Carr MR, et al. Practice Variations in Pediatric Echocardiography Laboratories Pediatr Cardiol, 2019.PMID 30353314
- [6]Sachdeva R, Valente AM, Armstrong AK, et al. ACC/AHA/ASE/HRS/ISACHD/SCAI/SCCT/SCMR/SOPE 2020 Appropriate Use Criteria for Multimodality Imaging During the Follow-Up Care of Patients With Congenital Heart Disease J Am Soc Echocardiogr, 2020.PMID 33010859
- [7]Romanowicz J, Ferraro AM, Harrington JK, et al. Pediatric Normal Values and Z Score Equations for Left and Right Ventricular Strain by Two-Dimensional Speckle-Tracking Echocardiography Derived from a Large Cohort of Healthy Children J Am Soc Echocardiogr, 2023.PMID 36414123
- [8]Dallaire F, Slorach C, Bradley T, et al Pediatric Reference Values and Z Score Equations for Left Ventricular Systolic Strain Measured by Two-Dimensional Speckle-Tracking Echocardiography J Am Soc Echocardiogr, 2016.PMID 27185223
- [9]Ford B, Lara S, Park J Heart Murmurs in Children: Evaluation and Management Am Fam Physician, 2022.PMID 35289571
- [10]Miller AF, Arichai P, Gravel CA, et al. Use of Cardiac Point-of-Care Ultrasound in the Pediatric Emergency Department Pediatr Emerg Care, 2022.PMID 33122503
- [11]Kamra K, Punn R Role of echocardiography in the assessment of right ventricular function in the pediatric population Paediatr Anaesth, 2019.PMID 30934152
- [12]Grotenhuis HB, Mertens LL Recent evolutions in pediatric and congenital echocardiography Curr Opin Cardiol, 2015.PMID 25398044