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  1. Videos
  2. Sudden Cardiac Death — the four earlies, and the rhythm you must read

Sudden Cardiac Death — the four earlies, and the rhythm you must read

Published
7 Sept 2026
Duration
15:33
Channel
MedVellum on YouTube

About this video

Sudden cardiac death (SCD) is the sudden, unexpected death from a cardiac cause occurring within one hour of symptom onset (witnessed), or within 24 hours of last being seen alive and well (unwitnessed). Full topic, figures, and citations: https://medvellum.com/topics/sudden-cardiac-death Chapters 00:00 The one-line answer 01:19 Meet the patient 01:58 Red flags 03:31 What counts as "sudden" — the 1-hour rule 05:55 Read the rhythm — shockable or not 06:15 Chain of survival — the four earlies 07:30 Non-shockable rhythms — adrenaline and hunt the cause 07:51 The 4 Hs and 4 Ts — the eight revers…

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