What are vagal maneuvers for young children experiencing SVT?

Vagal maneuvers are techniques used to stimulate the vagus nerve with the goal of slowing down the heart rate during episodes of supraventricular tachycardia (SVT). Among the listed options, placing a bag of ice water on the child's face is an effective vagal maneuver. This method, often referred to as the "cold water immersion" technique, can trigger a reflex that involves the vagus nerve, potentially helping to interrupt the SVT episode by inducing a parasympathetic response.

This technique is particularly effective in children because they tend to have a more pronounced vagal response compared to adults. When cold water is applied to the face, it can cause a natural slowing of the heart rate. Engaging the child in this maneuver provides a non-pharmacological approach to managing episodes of SVT, making it a valuable tool in emergency medical care and pediatric practice.

Other options, while they may seem beneficial in the context of calming a child or affecting heart rate, do not have the same established physiological impact on the vagus nerve as the cold face immersion technique does.