Transcutaneous Pacing in Pediatric Patients: Current Evidence and Recommendations
Critical Update: Transcutaneous Pacing No Longer Recommended
The 2025 International Liaison Committee on Resuscitation has withdrawn all previous recommendations supporting transcutaneous pacing in pediatric bradycardia, citing insufficient evidence to support its use. 1
What Changed in 2025
The most recent guidelines explicitly withdrew the 2000 recommendation that stated "emergency transthoracic pacing may be lifesaving" in selected cases of complete heart block or sinus node dysfunction 1. This withdrawal was based on:
- Lack of any direct or indirect evidence deemed appropriate by the task force
- No high-quality observational studies or randomized controlled trials identified
- Insufficient data to support even a good practice statement for transcutaneous pacing 1
Previous Recommendations (Now Withdrawn)
The 2020 guidelines 2 had maintained that:
- Pacing could be considered for bradycardia from complete heart block or sinus node dysfunction
- Pacing was not helpful for bradycardia secondary to post-arrest hypoxic/ischemic injury or respiratory failure
- Pacing was not effective for asystole in children
What the Research Actually Shows
Limited Efficacy Data
The available research demonstrates poor outcomes:
Out-of-hospital cardiac arrest study 3: Among 9 pediatric patients (all <6 years) who received transcutaneous pacing for drowning or SIDS-related arrests, only 2 achieved electrical capture, neither had detectable pulse or blood pressure, and the single survivor died 6 months later with severe neurologic impairment
Technical feasibility study 4: While transcutaneous pacing achieved capture in 53 of 56 trials during elective anesthesia induction, this was in hemodynamically stable children undergoing planned procedures—not emergency situations
Technical Parameters (Historical Reference Only)
From the 1987 study 4 in controlled settings:
- Mean threshold: 63 ± 14 mA with adult-sized electrodes
- Lower thresholds with smaller electrodes (51-53 mA)
- Smaller electrodes recommended for children <15 kg
- Mean energy requirement: 0.12 ± 0.01 joules/beat
Current Recommended Approach for Pediatric Bradycardia
For bradycardia with hemodynamic compromise not responsive to oxygenation and ventilation: initiate CPR 1
This represents a fundamental shift—the 2025 guidelines now recommend chest compressions rather than attempting pharmacologic interventions or pacing.
What Was Also Withdrawn in 2025
- Epinephrine for bradycardia with poor perfusion (2010 recommendation withdrawn) 1
- Atropine for vagal-mediated bradycardia (2010 recommendation withdrawn) 1
Exceptional Circumstance: Neonatal Congenital Complete Heart Block
One 2026 case report 5 described successful delivery-room transcutaneous pacing for a preterm neonate with congenital complete heart block, serving as a bridge to ECMO and eventual permanent pacemaker. However, this represents:
- A single case report
- A highly specialized scenario (antenatally diagnosed CCHB)
- Use as a temporizing bridge to definitive therapy, not treatment itself
Clinical Bottom Line
Do not rely on transcutaneous pacing for pediatric bradycardia emergencies. The evidence base is insufficient, outcomes are poor, and current guidelines have withdrawn support for this intervention. Instead, focus on:
- Oxygenation and ventilation as first-line interventions
- Chest compressions if hemodynamic compromise persists
- Definitive pacing (transvenous or epicardial) for structural conduction abnormalities requiring ongoing support
The withdrawal of these recommendations reflects the reality that transcutaneous pacing in pediatric emergencies has never been shown to improve mortality or meaningful clinical outcomes.