Cardiac Arrest Management Guidelines

Core Components of High-Quality CPR

The American Heart Association recommends pushing hard (at least 2 inches/5 cm) and fast (100-120/min) while allowing complete chest recoil for high-quality CPR 1, 2
Minimizing interruptions in compressions, with pauses kept as brief as possible, is crucial for successful resuscitation 3, 4
Avoiding excessive ventilation, which can impair cardiac output, is essential for high-quality CPR 2, 5
Rotating compressors every 2 minutes or sooner if fatigued helps maintain compression quality 2, 6
Maintaining a 30:2 compression-ventilation ratio without advanced airway is recommended 3, 5
Providing continuous compressions with 1 breath every 6 seconds (10 breaths/min) with advanced airway is advised 4, 7

Immediate defibrillation is recommended for witnessed arrest 3
For unwitnessed arrest, providing 2 minutes of CPR before the first shock is suggested 1
The American Heart Association recommends using either amiodarone or lidocaine as antiarrhythmic medications for shock-refractory VF/pVT 2, 4
Focusing on high-quality CPR and identifying/treating reversible causes is crucial for non-shockable rhythms (PEA/Asystole) 3
Early epinephrine administration is recommended for non-shockable rhythms (PEA/Asystole) 1

The American Heart Association suggests attempting intravenous (IV) access first for drug administration 1
Intraosseous (IO) access may be considered if IV attempts are unsuccessful or not feasible 1

Endotracheal intubation or supraglottic airway placement should not cause prolonged interruptions in chest compressions 8, 2
Waveform capnography is recommended to confirm and monitor advanced airway placement 2, 5
PETCO₂ < 10 mm Hg suggests the need to improve CPR quality 2, 4
An abrupt sustained increase in PETCO₂ (typically ≥40 mm Hg) may indicate return of spontaneous circulation 4, 7

Quantitative waveform capnography is recommended for monitoring CPR quality 2, 5
Arterial diastolic pressure (relaxation phase) < 20 mm Hg indicates the need to improve CPR quality 2, 6
Continuous assessment of chest compression rate, depth, and recoil is essential for high-quality CPR 3, 1

The American Heart Association adds a fifth link to the Adult Chain of Survival: "post-cardiac arrest care" 1
For patients with VF/pVT arrest, prophylactic lidocaine may be considered in specific circumstances to prevent recurrence 7, 9

Double sequential defibrillation for refractory shockable rhythm has not been established as effective (Class 2b, LOE C-LD) 1
No antiarrhythmic drug has been definitively shown to increase long-term survival or improve neurological outcomes 4, 7
The optimal sequence of ACLS interventions remains unknown and may need to be adapted based on provider numbers and skill levels 4, 9