[Resuscitation - Basic Life Support in adults and application of automatic external defibrillators]

Area of Science:

• Emergency Medicine
• Cardiology
• Public Health

Background:

• Sudden cardiac arrest (SCA) requires immediate intervention from lay witnesses.
• Lay rescuers play a critical role in initiating resuscitation efforts.
• Early recognition of SCA and prompt CPR are vital for patient outcomes.

Purpose of the Study:

• To emphasize the importance of lay-person training in recognizing SCA and initiating CPR.
• To highlight the role of emergency dispatchers in guiding lay rescuers and locating Automated External Defibrillators (AEDs).
• To provide guidelines on effective CPR techniques, including compression depth, rate, and ventilation.

Main Methods:

• Review of current resuscitation guidelines and literature.
• Emphasis on recognizing key signs of SCA, such as absent or abnormal breathing (agonal breathing) and convulsions.
• Guidance on performing high-quality chest compressions and ventilations.

Main Results:

• Chest compressions are fundamental in all SCA cases.
• Current evidence does not support "chest-compression-only" CPR as equivalent to CPR with ventilation.
• Recommended CPR technique involves a 30:2 compression-to-ventilation ratio, with compressions at 100-120/min and 5-6 cm depth.
• Minimizing interruptions in chest compressions is critical.
• Availability of AEDs in public places facilitates early defibrillation by lay rescuers.

Conclusions:

• Lay rescuers must be trained to recognize SCA and perform CPR effectively.
• Dispatcher-assisted CPR and early AED use significantly improve survival rates.
• High-quality CPR, combining compressions and ventilations, remains the standard of care.