28 results
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Complexes (PVC's ... Bundle branch block ... Presyncope PVC ... : • Broad QRS complex ... #Complexes #PVCs
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... may progress to complete ... aka Complete Heart ... rhythm with complete ... PAC or PVC, acceleration
Cannon A Waves of Complete Heart Block on Physical Exam
A patient presented to clinic with lightheadedness
Cannon A Waves of Complete ... Heart Block on ... heart block (2) ... VT (3) PAC/PVCs ... heart block.
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
Premature Atrial Complex ... • PAC can be ... blocked or non-conducted ... #PACs #cardiology ... premature #atrial #complexes
Paroxysmal AV Block aka Ventricular Standstill
 • Abrupt and persistent AV block ( multiple P waves
Paroxysmal AV Block ... persistent AV block ... PAC or PVC, acceleration ... • Once the block ... initiated, the block
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
First Degree AV Block ... preceding each QRS complex ... until a P wave (ventricular ... complex) is dropped ... Third Degree" • Complete
Paroxysmal AV Block on ECG
 - Characterized by an abrupt and persistent AV block in the
Paroxysmal AV Block ... persistent AV block ... PAC or PVC, acceleration ... escape, usually ventricular ... #Paroxysmal #AVBlock
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Syndrome • SA Block ... • AV Block (ISt ... bpm) - Narrow Complex ... WPW) - Narrow Complex ... aberrancy - Wide Complex
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... Pacemaker 3rd Degree, Complete ... Heart Block: ... • Block in AV
Classic Digoxin-Associated Arrhythmias
 • Atrial fibrillation with an unusually slow ventricular response
 • Atrial Fibrillation with
unusually slow ventricular ... Fibrillation with Complete ... Heart Block and ... Tachycardia with 2:1 AV Block ... Bidirectional Ventricular