17 results
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... First Degree AV Block ... bundle branch block ... heart block. ... electrocardiogram #classification
Complete (3rd Degree) Heart Block on ECG

ECG of a man brought to the ER by paramedics
Complete (3rd Degree ... ) Heart Block on ... ECG ECG of a ... an episode of syncope ... @EM_RESUS #Complete
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
1st Degree Heart Block ... Mobitz I Heart Block ... Heart Block: ... • Block in AV ... narrow QRS • Block
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... node.Mobitz I heart block ... electrocardiogram (ECG ... '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 ... node.Mobitz I heart block ... electrocardiogram (ECG ... 'dropped' QRS complex ... #Clinical #EM #IM
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
- Syncope Syndromes ... assoc with 1K, AV block ... Trifascicular block ... 1st degree heart block ... electrocardiogram #differential
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Shock - Differential ... Diagnosis by Classification ... pauses • AV block ... #Differential # ... Diagnosis #Classification
66 yo with syncope - Ventricular Tachycardia

This ECG shows a wide-complex tachycardia in a right bundle
66 yo with syncope ... shows a wide-complex ... bundle branch block ... morphology of the QRS complex ... There is a RS complex
Mobitz II heart block is characterized on a surface ECG by intermittently nonconducted P waves not
Mobitz II heart block ... characterized on a surface ECG ... conducted QRS complex ... describing Mobitz II blocks ... #Clinical #EM #IM
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Arrhythmias - Differential ... Diagnosis Algorithm ... Syndrome • SA Block ... • AV Block (ISt ... #Diagnosis #Algorithm