Are electrocardiograms correctly interpreted by pediatric residents? Experience before and after an educational intervention in a teaching hospital

Arch Argent Pediatr. 2021 Aug;119(4):273-278. doi: 10.5546/aap.2021.eng.273.
[Article in English, Spanish]

Abstract

The incidence of pediatric cardiac arrest is unknown; its main etiologies are congenital heart diseases, cardiomyopathies, and ventricular arrhythmias. An electrocardiogram (ECG) is a diagnostic method that may allow to detect them in an early manner and reduce morbidity and mortality. The objective of this study was to describe pediatric residents' skills to determine if an ECG was normal or abnormal and make an accurate electrocardiographic diagnosis before and after an educational intervention. First-year pediatric residents participated in this study. An assessment including 12 ECG tracings was done before and after an educational module, and scores were compared using the t-test for paired data. No differences were observed between both assessments regarding the interpretation of ECG as normal or abnormal (p: 0.42). However, a statistically significant difference was observed in definitive diagnoses (p < 0.002). Definitive electrocardiographic diagnoses improved after the implementation of an educational module.

La incidencia del paro cardíaco pediátrico es desconocida; sus principales etiologías son cardiopatías congénitas, miocardiopatías y arritmias ventriculares. El electrocardiograma es un método diagnóstico que podría detectarlas precozmente y disminuir la morbimortalidad. El objetivo del estudio fue describir las habilidades de residentes de Pediatría para reconocer si un electrocardiograma era normal o anormal y realizar un diagnóstico electrocardiográfico preciso, antes y después de una intervención educativa. Participaron médicos residentes de primer año de Pediatría. Se tomó una evaluación con 12 trazados de electrocardiogramas, antes y después de un módulo educativo, y se compararon los puntajes mediante la prueba de “t” para datos pareados. No se halló diferencia entre ambas evaluaciones para la interpretación de electrocardiogramas como normales o anormales (p: 0,42). Sin embargo, hubo una diferencia estadísticamente significativa en cuanto a los diagnósticos de certeza (p<0,002). Los diagnósticos de certeza electrocardiográficos mejoraron luego de implementar un módulo educacional.

Keywords: cardiac electrophysiology; cardiology; learning; medical education.

MeSH terms

  • Child
  • Clinical Competence
  • Electrocardiography
  • Heart Arrest*
  • Hospitals, Teaching
  • Humans
  • Internship and Residency*