12 results
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Second-degree AV block ... electrocardiogram (ECG ... '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 ... electrocardiogram (ECG ... 'dropped' QRS complex ... the dropped QRS complex ... #Clinical #EM #IM
Mobitz II heart block is characterized on a surface ECG by intermittently nonconducted P waves not
block is characterized ... on a surface ECG ... conducted QRS complex ... II blocks. ... #Clinical #EM #IM
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
preceding each QRS complex ... until a P wave (ventricular ... complex) is dropped ... Third Degree" • Complete ... heartblock #cardiology #ecg
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
(AV blocks) - ECG ... • The QRS complex ... may progress to complete ... aka Complete Heart ... rhythm with complete
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Treatment 2nd Degree, Mobitz ... . 2nd Degree, Mobitz ... Pacemaker 3rd Degree, Complete ... HeartBlocks #Types #Classification ... electrocardiogram #ecg
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
bpm) - Narrow Complex ... WPW) - Narrow Complex ... Tachycardia - Wide Complex ... aberrancy - Wide Complex ... #causes
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Complexes (PVC's ... heart disease Causes ... Bundle branch block ... : • Broad QRS complex ... #Complexes #PVCs
Treatment of Stable Wide-Complex Tachycardia
Regular
 • If ventricular tachycardia or uncertain rhythm:
    -
of Stable Wide-Complex ... nodal agents (e.g ... diltiazem or B-blockers ... Follow narrow-complex ... management #cardiology #algorithm
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
precedes the QRS complex ... discordant with the QRS complex ... S1Q3T3 pattern; complete ... or in-complete ... - Widened QRS complexes