Welcome to the ECG with Reid Blog

Calculating AV Conduction Ratios in Atrial Flutter atrial flutter Nov 27, 2025

Why Second-Degree 2:1 AV Block Cannot Be Reliably Classified as Mobitz I or Mobitz II av block Nov 25, 2025

Why the PR Interval Shortens in WPW Syndrome wpw syndrome Nov 19, 2025

1:1 Atrial Flutter — When the AV Node Stops Protecting the Ventricles atrial flutter Nov 10, 2025

Biphasic P Wave in V1: Anatomy & Electrophysiology Nov 04, 2025

The Septal R Wave in V1 and V2: Anatomy, Physiology, and Clinical Relevance septal r wave Oct 30, 2025

Ever Seen Adenosine is Given in 2:1 Atrial Flutter? Here's What Happens... adenosine atrial flutter pharmacology Sep 28, 2025

Retrograde P Waves in Junctional Rhythms: Why They Appear Before, During, or After the QRS junctional rhythms retrograde p waves Sep 17, 2025

Quick Tip: How to Calculate Heart Rate in Atrial Fibrillation on ECG atrial fibrillation Sep 12, 2025

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

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

Fusion Beats in Monomorphic Ventricular Tachycardia ventricular tachycardia (vt) vt Jun 12, 2025

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