Why is the 2-thumbs-encircling-hands technique preferred for infant CPR over the 2-finger technique?

The preference for the 2-thumbs-encircling-hands technique in infant CPR over the 2-finger technique is fundamentally rooted in its ability to improve the effectiveness of compressions. This approach uses both hands to apply consistent compressions, which leads to a more effective hemodynamic response compared to the 2-finger technique, where only two fingers are used.

When utilizing the 2-thumbs-encircling-hands technique, the larger surface area of the hands can generate adequate compressive force, leading to better blood circulation and oxygen delivery to vital organs, including the heart and brain. This is particularly important in an infant where the size and structural characteristics of the chest require careful attention to the mechanics of compressions. Effective chest compressions are crucial in maintaining blood flow and increasing the likelihood of survival in a cardiac arrest scenario.

In contrast, although the 2-finger technique can be easier for a single rescuer to perform initially, it does not provide the same level of compressive force and can limit the effectiveness of the CPR provided. The correct technique prioritizes the infant's physiological needs during cardiac arrest, emphasizing the importance of strong, effective compressions to facilitate adequate blood flow and oxygenation.