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Blocked PACs: ECG Findings and Underlying Pathophysiology av block blocked pac pac premature atrial contraction Sep 11, 2025

Premature atrial contractions (PACs) are a common finding on ECG and are usually benign. But sometimes a PAC arrives at the AV node when it is still r...

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Nocturnal Second-Degree Type I AV Block: A Benign Manifestation of Vagal Tone in Sleep 2nd degree type i av block av block mobitz i wenckebach Jun 13, 2025

Second-degree type I AV block, also known as Mobitz I or Wenckebach, is typically characterized by a progressive prolongation of the PR interval follo...

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Inferoposterior STEMIs and Complete Heart Block: A Look at AV Node Anatomy and RCA Supply anatomy av block complete av block stemi Jun 04, 2025

Complete heart blockā€”or third-degree AV blockā€”is a feared complication of ST segment elevation myocardial infarction (STEMI), particularly when the in...

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