267 Ch 266. Cardiopulmonary Resuscitation + Cardiac Arrest

Out-of-hospital cardiac arrest (OHCA) ~ 350,000/yr USA + 7-9M globally; high-quality CPR + early defibrillation + ACLS = chain of survival; 4 H + 4 T reversible causes; targeted temperature management (TTM) post-arrest; ECPR (extracorporeal CPR) emerging for refractory; 2020 + 2023 AHA + 2024 ESC updated guidelines; public access AEDs save lives。