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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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All Categories 2nd degree type i av block aberrancy action potential anatomy approach to ecg ashman phenomenon atrial fibrillation atrial flutter av block av dissociation avnrt blocked pac bundle branch blocks calcium channel blockers cardiac tamponade complete av block electrical alternans functional rbbb heart blocks hyperkalemia left ventricular hypertrophy lvh mobitz i myocardial infarction pac pacemaker pericardial effusion pharmacology premature atrial contraction premature ventricular contraction pvc rate related wenckebach sinus arrhythmia stemi svt ventricular tachycardia (vt) vt wenckebach