Overview
Bradyarrhythmias involve abnormally slow heart rates, often necessitating intervention to restore adequate cardiac output and prevent hemodynamic compromise 1.Diagnosis
Electrocardiogram (ECG) essential for identifying slow heart rates and underlying rhythm disturbances 1.
Hemodynamic stability assessment crucial for guiding immediate management decisions 1.
Specific bradyarrhythmia types (e.g., sinus bradycardia, heart block) diagnosed based on ECG patterns 1.Management
First-line Treatment: Pacemaker implantation for symptomatic bradyarrhythmias or those causing hemodynamic instability 1.
Adjunctive Therapies: Temporary pacing may be used in acute settings until permanent pacemaker placement 1.
Drug Management: Atropine or epinephrine for transient symptomatic relief in acute settings, though not definitive 1.Special Populations
Pediatrics: Severe bradyarrhythmias in neonates can have unexpectedly benign outcomes with close monitoring 2.
Elderly: Considerations for comorbidities and frailty in pacemaker placement and management are paramount 1.Key Recommendations
Implant pacemakers for symptomatic bradyarrhythmias or those causing hemodynamic instability to improve outcomes (Evidence: Strong 1).
Consider left bundle branch area pacing (LBBaP) over His bundle pacing due to better R wave amplitudes, lower pacing thresholds, and higher success rates (Evidence: Moderate 3).
Utilize temporary pacing in acute settings for hemodynamic stabilization prior to definitive pacemaker implantation (Evidence: Expert opinion 1).References
1 Aldaas OM, Roberge-Lacharite AS, Birgersdotter-Green U. Pacemakers. NEJM evidence 2025. link
2 Mascarenhas D, Goyal M, Nanavati R. Favourable outcome of a severe bradyarrhythmia in a neonate: a case report. Cardiology in the young 2023. link
3 Yuan Z, Cheng L, Wu Y. Meta-Analysis Comparing Safety and Efficacy of Left Bundle Branch Area Pacing Versus His Bundle Pacing. The American journal of cardiology 2022. link
4 Warner ME, Chong EY, Lowe ME, Sprung J, Weingarten TN. Emergency pages using a computer-based anesthesiology paging system in ambulatory surgical centers: a retrospective review. Anesthesia and analgesia 2014. link