14 results
Narrow Complex Tachycardias (Simplified)

Irregular Narrow Complex Tachycardia:
 1. Atrial fibrillation
	- Usually the correct answer
 2. Multifocal
Narrow Complex Tachycardias ... (MAT) ≥ 3 different ... #differential # ... diagnosis #causes ... #cardiology
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
Tachycardia - Differential ... AFIutter) • P-waves ... variable block >> MAT ... abnormality • Beware AV ... #cardiology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Causes of ST Segment ... Elevation - Differential ... block; and sinus tachycardia ... #diagnosis #cardiology ... #ecg #ekg #electrocardiogram
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... (> 160ms) - AV ... at different rates ... nadir of the S-wave ... #ekg #cardiology
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(MAT) - 3 ... different P waves ... #EKG #diagnosis ... electrocardiogram #cardiology ... #differential
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
- In most case ... in the QRS complex ... ECG usually shows ... tachycardia at ... Pathophysiology #cardiology
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Stable Narrow-Complex ... Control rate with AV ... Treat underlying cause ... atrial flutter or MAT ... Treatment #management #cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
of ST segment at ... discordant QRS complex ... #EKG #diagnosis ... #differential # ... cardiology #electrocardiogram
Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Premature Ventricular Complexes ... 300 = NSVT EKG ... Differential ... PVC #diagnosis #differential ... #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
aVR • Classic EKG ... • Narrow complex ... criteria only looks at ... #differential # ... cardiology