Arrest
Results:
Post-Cardiac Arrest ECGs Hub
Key Points: The first post-ROSC ECG is essential but imperfect. Obtain it immediately, but interpret it in context. Global ischemia, defibrillation, acidosis, hypothermia, vasopressors, artifact, and severe metabolic derangements can…
Post-Arrest STEMI: Cath Lab Decisions
Key Points: Persistent ST elevation after ROSC remains a guideline-supported indication for emergency coronary angiography. The 2025 ACC/AHA/ACEP/NAEMSP/SCAI ACS guideline recommends emergency angiography for patients after cardiac arrest with suspected…
Post-Arrest No STEMI: When Cath Can Wait
Key Points: Stable post-arrest patients without ST elevation should not go to reflex immediate cath solely because cardiac arrest occurred. Randomized trials in OHCA patients without ST elevation have not…
Pediatric ECG in Cardiac Arrest
Key Points: Pediatric arrest is usually respiratory, hypoxic, or shock-related, not primary coronary occlusion. The ECG still matters because it can reveal reversible metabolic, toxicologic, structural, inflammatory, or inherited electrical…
Torsade de Pointes (TdP)
Key Points Definition: TdP is a specific subtype of polymorphic ventricular tachycardia associated with a prolonged QTc interval. It often presents with a “twisting” pattern on ECG but can be…
Electrical Storm
Key Points: Definition: Electrical storm is defined as three or more episodes of sustained ventricular tachycardia (VT), ventricular fibrillation (VF), or appropriate implantable cardioverter-defibrillator (ICD) shocks within 24 hours. Some…
Pulseless Electrical Activity (PEA) Arrest
Key Points: Definition: Organized electrical activity on ECG without a palpable pulse. PEA is a non-shockable arrest rhythm requiring CPR, epinephrine, and identification of reversible causes. Confirmation: Verify in two…
Asystole (Cardiac Arrest)
Key Points: Definition: Asystole is a non-shockable cardiac arrest rhythm characterized by absence of ventricular electrical activity. Treat with high-quality CPR, epinephrine every 3–5 minutes, and an urgent search for…
R-on-T Phenomenon
Key Points Definition: The R on T phenomenon occurs when an ectopic impulse (often a PVC or cardioversion shock) falls on the T wave of the preceding beat. Mechanism: Interrupting…
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