Ep 215 Cardiac Arrest Update: Beyond the 2025 Guidelines Part 1: CPR, Defibrillation and Ventilation
March 25, 2026
AI Summary
5 min readA 54-year-old man collapses at a soccer game. Bystanders start CPR immediately. EMS arrives, confirms ventricular fibrillation, and delivers seven shocks and three doses of epinephrine before he reaches the emergency department. He still has ongoing high-quality CPR and remains in VF. This is the kind of case that pushes emergency physicians beyond the 2025 AHA ACLS guidelines—which, as Dr. Sheldon Cheskis notes, are "designed for office-based physicians who rarely run codes of arresting patients." For the ED team, the guidelines go quiet after three shocks and epinephrine and amiodarone, but the patient does not.
What Actually Moves the Needle
The single biggest determinant of survival remains the chain of survival: emergency activation, high-quality CPR, early defibrillation, advanced resuscitation, post-arrest care, and long-term recovery. Dr. Rob Sumard emphasizes that the first link—getting 911 activated and bystander CPR started immediately—is where the largest gains are made. Dispatcher-assisted CPR improves bystander performance, and video-assisted CPR (studied in Korea) allows dispatchers to coach in real time. Crowdsourcing apps like PulsePoint and community responder programs (widespread in Amsterdam and Sweden) get AEDs and trained citizens to the scene before EMS arrives. Sweden is also leading drone delivery of AEDs to rural areas. The principle is simple: t
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What you'll learn
- 1 (00:01) **Episode Intro and Guest Welcome** - Hosts Anton Helman and Katie Lynn introduce the topic: a practical update on adult cardiac arrest management beyond the 2025 AHA/ILCOR guidelines.
- 2 (03:39) **The Chain of Survival: What Really Matters** - Rob Sumard outlines the six links in the chain of survival that make the biggest difference to neurologically intact survival.
- 3 (07:57) **System-Level Innovations for Early Defibrillation** - Sheldon Cheskis discusses the latest strategies to get the first shock delivered as fast as possible.
- 4 (12:36) **CPR Quality: Common Failures and Measurement** - The experts identify the most frequent CPR quality failures and the critical role of measurement.
- 5 (17:54) **Minimizing Interruptions: Pulse Checks and POCUS** - Strategies to keep pulse checks under 10 seconds and the emerging role of POCUS for pulse assessment.
- 6 (24:14) **Physiologic CPR Targets: ETCO2 and Arterial Lines** - The panel debates the utility of end-tidal CO2 and arterial lines as real-time CPR quality monitors.
- 7 (38:02) **Ensuring Full Recoil and Feedback Devices** - Practical tips for maintaining full chest recoil during chaotic arrests and the evidence for feedback devices.
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Show Notes
In this EM Cases update on cardiac arrest management, Dr. Sheldon Cheskes and Dr. Rob Simard join Anton to walk us through the evolving science and bedside practicalities of cardiac arrest management in the wake of the 2025 ACLS Guidelines. They answer questions such as: What are the most common failures in CPR quality, and how can we recognize and correct them in real time? Should we employ head up CPR, and if so how? How should we interpret ETCO₂ during cardiac arrest, and why shouldn’t we chase a single number? How can we minimize peri-shock pauses and optimize defibrillation success at the bedside? Is the traditional two-minute CPR cycle too rigid, and should we be shocking earlier in cases of refibrillation? What is the evidence behind dual sequential external defibrillation (DSED), and when should we use it? After 3 shocks or earlier? How does hyperventilation during cardiac arrest harm patients, and what strategies can reliably prevent it? What is compression-adjusted ventilation (CAV), and how can it improve ventilation consistency during resuscitation? What is the optimal dose of epinephrine in patient with Ventricular Fibrillation? and many more... Please donate to EM Cases to ensure ongoing Free Open Access Medical Education here: https://emergencymedicinecases.com/donation/
This is a deep dive into the critical inflection points in resuscitation where small changes in technique and decision-making may have the greatest impact on outcomes.
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