10 results
Stimulated
SA node
AV node -
Un-stimulated
#PQ
(mV) 0
ECG (lead II)
QRS
#QRS
#SA node
#AV node
#Bundle of His
Bundle branches
#Purkinje fibers
#QRS
#ST
Stimulated SA node ... AV node - Un-stimulated ... #PQ (mV) 0 ECG ... ) QRS #QRS #SA ... node #AV node
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... tachy not from SA ... /brady) (3) SA ... 200ms from longer pause ... bradyarrhythmia #ECG
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... Pathophysiology - Dual AV ... stays inside the AV ... - In most case ... ECG usually shows
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... Sinus Syndrome • SA ... Block • AV Block ... with Variable AV ... #causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Differential Diagnosis Algorithm ... Sinus Syndrome (SA ... 2nd/3rd degree AV ... Differential #Diagnosis #Algorithm ... #causes
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
O - Obstructed AV ... pathway B - Bifascicular ... is obstructed AV ... pathway – look ... #ECG #Diagnosis
A wandering atrial pacemaker, (WAP), is an atrial arrhythmia that occurs when the natural cardiac pacemaker
sinoatrial node (SA ... atrioventricular node (AV ... pacemaker from the SA ... identifiable on ECG ... athletes and rarely causes
Treatment of Stable Narrow-Complex Tachycardia
Regular Rhythm:
 • Attempt vagal maneuvers
 • Give adenosine 6 milligrams IV
Control rate with AV ... Control rate (e.g ... Treat underlying cause ... Treat underlying cause ... management #cardiology #algorithm
This infographic provides a mnemonic tool called “WOBBLER” for assessing an ECG (electrocardiogram) in cases of
indicates an accessory pathway ... that can cause ... O: Obstructed AV ... PathwayECG ... as first-degree AV
Essential Thrombocythemia (ET)
ET is a chronic myeloproliferative neoplasm. Most cases are related to mutations that affect
Most cases are related ... JAK-STAT signaling pathway ... • Thrombosis (e.g ... thrombocytosis (e.g ... • Treatment algorithms