34 results
Approach to ECGs - Syncope Syndromes
Electrolytes
 • ↑K - brady, peak T, wide QRS, no P,
Approach to ECGs ... - Syncope Syndromes ... assoc with 1K, AV ... Wong @mchlwng #Syncope ... #Syndromes #ECG
WOBBLER  for ECG assessment in Syncope 
W - Wolff Parkinson White 
O - Obstructed AV
WOBBLER for ECG ... O - Obstructed AV ... is obstructed AV ... , can be caused ... characteristically cause
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
bradycardia • Sinus pauses ... • AV block ... Medication side effect (e.g ... Medication side effect (e.g ... Classification #Table #Causes
Syncope - Differential Diagnosis
The percentage of syncopal events secondary to arrhythmias or structural disease is generally
Syncope - Differential ... percentage of syncopal ... Brady (Sick sinus, AV ... block) • Tachy ... differential #diagnosis #causes
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
• First degree AV ... with syncope • ... RBBB/LBBB with syncope ... • Reversible causes ... of AV block -
Syncope - Differential Diagnosis Framework
Reflex Syncope:
• Vasovagal: Prolonged standing, Stress, Pain
• Situational: Coughing, Sneezing, Micturition, Defecation,
Syncope - Differential ... Framework Reflex Syncope ... bradycardia, Sinus pauses ... , AV block • Tachyarrhythmias ... Cerebrovascular Syncope
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... block 1º - long ... 200ms from longer pause ... block (lower AV ... bradyarrhythmia #ECG
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... Diagnosis Algorithm ... 2nd/3rd degree AV ... Block • Pacemaker ... #causes
Second degree AV Block 2:1
 • During sinus rhythm, 2 to 1 AV block manifest as
Second degree AV ... • A 2:1 AV block ... • A long strip ... #2to1 #ecg #diagnosis ... #ekg #electrocardiogram
Arrhythmias - Differential Diagnosis Algorithm

Bradyarrhythmia (<60 bpm)
 • Sinus Bradycardia
 • Sick Sinus Syndrome
 • SA
Differential Diagnosis Algorithm ... • AV Block (ISt ... with Variable AV ... in a setting of long ... #causes