PALS: When to Use Pediatric Defibrillator Pads

Emergency medical care for children presents unique challenges, as their physiology, anatomy, and responses to illness and injury differ significantly from adults. Pediatric Advanced Life Support (PALS) protocols acknowledge these distinctions, providing a specialized framework for managing pediatric emergencies. This ensures interventions are tailored to the specific needs of infants, children, and adolescents for effective and safe outcomes.

Specialized Equipment for Children

Children require specialized medical equipment, such as pediatric defibrillator pads, due to fundamental differences in their bodies. A child’s smaller body size and different electrical impedance mean they are more susceptible to higher energy levels than adults. Pediatric pads are specifically designed to address these differences. They are smaller, ensuring appropriate surface area contact on a child’s torso without overlapping for effective energy delivery.

Beyond size, pediatric pads incorporate a mechanism to attenuate, or reduce, the energy delivered from an automated external defibrillator (AED). While adult pads deliver 150 to 360 Joules of electricity, pediatric pads are designed to deliver a lower, safer dose, around 50 Joules. Some AEDs use a special attenuator or pediatric key/setting to achieve this reduced energy output. This attenuation prevents the delivery of excessive energy to a child’s delicate heart and tissues.

When Pediatric Pads are Essential

The use of pediatric defibrillator pads is guided by a child’s age and weight to ensure appropriate energy delivery. These specialized pads are recommended for children under 8 years old or those weighing less than 55 pounds. This guideline helps determine when a child’s smaller size necessitates the attenuated energy and smaller pad dimensions.

In PALS, defibrillation is necessary for specific cardiac rhythms that disrupt the heart’s pumping ability, such as pulseless ventricular tachycardia (pVT) and ventricular fibrillation (VF). Using pediatric pads in these situations delivers safe and effective defibrillation, increasing the likelihood of restoring a normal heart rhythm.

The Importance of Correct Pad Selection

Selecting the correct defibrillator pads is important for safe and effective pediatric resuscitation. Using adult pads on a child can lead to dangerously high energy levels, potentially causing burns to the child’s skin or damage to delicate cardiac tissue. Adult pads are also larger and may overlap on a child’s smaller chest, which can reduce their effectiveness by causing an electrical short circuit rather than directing the current through the heart.

Conversely, using pediatric pads on an adult is ineffective. The attenuated energy delivered by pediatric pads (50 Joules) is insufficient to convert a life-threatening rhythm in an adult. Additionally, their smaller size may not provide adequate surface area for effective electrical contact. Adhering to PALS training and protocols for proper pad selection ensures patient safety and successful resuscitation.