Related Experiment Video
Updated: Aug 15, 2026

A Modified Sonographic Algorithm for Image Acquisition in Life-Threatening Emergencies in the Critically Ill Newborn
Published on: April 7, 2023
Cardiac trauma and the conduction system: a case study of an 18-month-old child
Insights
Child abuse caused fatal head trauma and prior cardiac injury. Histology revealed myocardial infarction and His bundle narrowing, indicating delayed cardiac damage from abuse.
Area of Science:
- Forensic Pathology
- Pediatric Cardiology
Background:
- Child abuse can lead to severe, multifaceted injuries.
- Cardiac trauma in children may have long-term consequences.
Observation:
- An 18-month-old child presented with fatal head injuries and evidence of prior physical abuse.
- Post-mortem examination revealed multiple traumatic injuries to the head and trunk.
- Histologic findings included myocardial infarction in the right ventricle and interventricular septum.
Findings:
- The myocardial infarctions occurred 4-6 weeks prior to death, suggesting a pattern of ongoing abuse.
- Significant narrowing of the His bundle was observed, associated with thickening of the anulus fibrosus.
- These cardiac findings suggest a potential link between physical trauma and cardiac conduction abnormalities.
Implications:
- This case highlights the importance of considering cardiac injury in cases of suspected child abuse.
- Delayed cardiac effects from trauma may be overlooked in pediatric forensic investigations.
- Understanding the long-term cardiac consequences of child abuse is crucial for diagnosis and treatment.
Abstract:
An 18-month-old child sustained cardiac trauma four to six weeks before he died of multiple injuries to the head. Post-mortem findings revealed that the child, who had been beaten, had had multiple traumatic injuries to the head and trunk. Histologic examination also showed several regions of myocardial infarction. One was located in the right ventricle and another was near the top of the interventricular septum. These had occurred four to six weeks before death. In addition, the penetrating portion of the His bundle was considerably narrowed, compared with proximal and distal segments of the His bundle. The anulus fibrosus was also thickened in the region where the His bundle narrowed.
Related Concept Videos
Conduction System of the Heart
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
Conduction System of the Heart
This system relies on the unique properties of nodal and Purkinje cells:...
Introduction Cardiac Emergencies
Cardiopulmonary Resuscitation IV: Pharmacological Management
Spinal Cord Injury ll: Pathophysiology

