16 results
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
SVTs - atrial/junctional ... rhythms (5) AV ... block (lower AV ... bradyarrhythmia #ECG ... #EKG #diagnosis
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
• SA Block • AV ... AVNRT • AVRT ... interval) • AFib ... with Variable AV ... tachyarrhythmias #Cardiology
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... Flutter (AFL), ... node: AV re-entrant ... ), AV nodal re-entrant ... #cardiology
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Diagnosis Algorithm Narrow ... flutterAV ... tachycardia • AV ... #cardiology
Lead AVR on ECG
1. Acute myocardial infarction: ST elevation > 1.5 mm in aVR, indicative of
Lead AVR on ECG ... • Classic EKG ... in aVR in narrow ... #AVR #leadAVR #ecg ... electrocardiogram #diagnosis #ekg
Tachycardia - Differential Diagnosis Table - Wide vs Narrow, Regular vs Irregular

Regular Rhythm - Narrow Complex
vs SVT (AVNRT, ... OAVRT, AFIutter) ... > SVT+conduction ... abnormality • Beware AV ... #cardiology
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... - Decreases AV ... and atrial flutter ... Digoxin effect on ECG ... #ECG
Bradycardia - Differential Diagnosis Framework and Management
Narrow Complex Bradycardia:
 • Regular: Sinus Bradycardia, AFib w/ AV
and Management Narrow ... w/ AV Block, Atrial ... Tachy w/ AV Block ... Irregular: Sinus Arrhythmia ... w/ Variable AV
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
evaluating for other causes ... Arrhythmia* (e.g ... in relation to ECG ... Changes • STE in aVR ... AcutePE #diagnosis #cardiology
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
exam • 12-lead ECG ... flutter, or atrial ... Valvular disease (e.g ... or AVRT • Standing ... #Palpitations #Cardiology