Isorhythmic AV dissociation
Results:
AV Block: Third-Degree (Complete Heart Block)
Key Points Definition: Complete heart block (CHB) involves complete failure of conduction from atria to ventricles, resulting in independent atrial and ventricular rhythms (AV dissociation). Hallmark ECG Features: AV Dissociation:…
AV Block: Second-Degree, High-Grade (Advanced AV Block)
Key Points Definition: High-grade or advanced AV block is a severe form of second-degree AV block, usually associated with a Mobitz II pattern, where multiple consecutive P waves fail to…
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:
STAT ECG Diagnoses: isorhythmic AV dissociation and complete heart block
A 43-year-old man with a history of demand pacemaker placement gets the following routine ECG during outpatient follow up with his primary care provider:
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