What is the most common cause of cardiac arrest in children?

The most common cause of cardiac arrest in children is respiratory distress. In the pediatric population, respiratory problems often lead to a significant decrease in the oxygen available to the heart and other vital organs. When a child experiences respiratory distress, conditions such as asthma, pneumonia, or severe allergic reactions can precipitate hypoxia, ultimately resulting in a cardiac arrest if not promptly addressed.

Children's physiology differs from that of adults; their ability to compensate for low oxygenation is more limited, making them more susceptible to rapid deterioration. In many cases, respiratory failure or distress occurs prior to cardiac arrest, highlighting the critical link between the respiratory system and the cardiovascular system in young patients.

Additionally, while conditions like congenital heart defects, trauma, and electrical shock can cause cardiac arrest, they are less common compared to the effects of respiratory issues in children. Understanding this information is crucial for effective emergency response and interventions in pediatric patients.