27 results
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Tachycardia (FAT ... Tachycardia (MAT ... ) • AV node: AV ... Differential #Diagnosis #Causes ... #cardiology
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Multifocal Atrial ... Tachycardia (MAT ... #Tachycardia #MAT ... #Cardiology #Diagnosis ... #ECG #EKG #Management
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Control rate with AV ... Treat underlying cause ... flutter or MAT ... #Treatment #management ... #cardiology #algorithm
Almost any type of cardiac arrhythmia is seen in digitalis toxic­ity. However, type II second-degree atrioventricular
heart block, sino-atrial ... Non-paroxysmal atrial ... tachycardia with ... #Diagnosis #Cardiology ... #EKG #ECG #Digoxin
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
(2) Atrial ... tachycardia (MAT ... 200ms from longer pause ... #EKG #diagnosis ... electrocardiogram #cardiology
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Drive: • Sinus Tachycardia ... common finding) • Atrial ... also a result of atrial ... Leads (VI-V3) +/- Inferior
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
- Decreases AV ... nodal conduction Uses ... and atrial flutter ... (at therapeutic ... #Cardiology #Digitalis
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Nodal Reentrant Tachycardia ... - In most case ... ECG usually shows ... at rates of 120 ... Pathophysiology #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
artery (LMCA). left anterior ... Subepicardial atrial ... aVR • Classic EKG ... : AVNRT, AVRT, atrial ... criteria only looks at
Cannon A Waves on Neck Examination

Cannon a waves! Notice that it occurs randomly, not predictably w/
waves indicate AV ... block, or, as this case ... for DDI and an atrial ... tachycardia much ... than the PPM’s max