11 results
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... interval on the electrocardiogram ... 'dropped' QRS complex ... the dropped QRS complex ... #Clinical #EM #IM
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... interval on the electrocardiogram ... 'dropped' QRS complex ... the dropped QRS complex ... #Clinical #EM #IM
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
• The QRS complex ... • This is a clinically ... atrioventricular #blocks #AVBlock ... ecg #diagnosis #electrocardiogram ... #classification
66 yo with syncope - Ventricular Tachycardia

This ECG shows a wide-complex tachycardia in a right bundle
ECG shows a wide-complex ... bundle branch block ... There is a RS complex ... VentricularTachycardia #Clinical ... Cardiology #ECG #EKG #Electrocardiogram
Complete (3rd Degree) Heart Block on ECG

ECG of a man brought to the ER by paramedics
Complete (3rd Degree ... ) Heart Block on ... @EM_RESUS #Complete ... HeartBlock #ECG #EKG #Electrocardiogram ... #Cardiology #Clinical
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 ... HeartBlocks #Types #Classification ... Diagnosis #EKG #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... diagnosis #ekg #ecg #electrocardiogram ... #variants #clinical
High-grade AV Block aka Advanced AV Block
 • During sinus rhythm, when 2 or more P
High-grade AV Block ... • This is a clinically ... may progress to complete ... #Highgrade #AVBlock ... cardiology #ecg #ekg #electrocardiogram
The 4 Variants of Sinus Arrhythmia
Phasic Sinus Arrhythmia:
 • The rate increases with respiration and decreases
encompassing a QRS complex ... intervening QRS complex ... presence of AV block ... diagnosis #ekg #ecg #electrocardiogram ... #variants #clinical
Mobitz II heart block is characterized on a surface ECG by intermittently nonconducted P waves not
Mobitz II heart block ... conducted QRS complex ... #Clinical #EM #IM