AV dissociation without complete heart block
Results:
Isorhythmic AV Dissociation
Key Points Definition: A type of AV dissociation in which sinus and escape rates are nearly identical, so P waves and QRS complexes appear to “track” each other while remaining unrelated….
High-Grade (Advanced) AV Block
Key Points Definition: A severe form of second-degree AV block with two or more consecutive non‑conducted P waves (for example 3:1, 4:1). Do not force a Mobitz label when multiple…
Bradycardia, STEMI, and a Misleading Rhythm Diagnosis
A 68-year-old woman calls EMS after having a syncopal episode while using the bathroom. She reports associated chest pain over the past day. The following prehospital ECG is obtained:
Distinction Between AV Dissociation and Complete Heart Block
A 54-year-old man presents to the emergency department with chest pain. The following ECG is obtained:
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