10 results
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Indications Class ... • Third degree block ... or 3rd degree block ... Class Ill: • Syncope ... of AV block -
Antiarrhythmic Medications - Vaughan Williams Classification - Summary Table
Class I agents - Sodium Channel Blockers⠀
Class II
Antiarrhythmic Medications ... - Summary Table ... are beta blockers ... #Classification ... #Summary #Table
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Summary of Heart ... Blocks 1st Degree ... Heart Block: ... Mobitz I Heart Block ... HeartBlocks #Types #Classification
Shock - Differential Diagnosis by Classification
Reflex Syncope 
 - Vasovagal syncope
   • Prolonged standing
Differential Diagnosis by Classification ... pauses • AV block ... depletion - Medication ... Alcohol blackout - Medication ... #Table #Causes
Syncope - Differential Diagnosis Algorithm
Neurocardiogenic:
 • Vasovagal
 • Orthostatic Hypotension
 • Autonomic Neuropathy
 • Situational (micturition,
Syncope - Differential ... • Anemia • Medications ... /3rd degree AV Block ... • Pacemaker ... #causes
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
: • MOA: Block ... 2 - Beta Blockers ... : • MOA: Block ... primarily) and block ... : • MOA: Block
Pacemaker Indications
Class I
 • Symptomatic sinus node dysfunction
 • 3° AV or type 2 2° AV
Pacemaker Indications ... Class I • Symptomatic ... or type 2 2° AV block ... or Type 1 2° AV block ... • Syncope of
Bradycardia - Differential Diagnosis Framework

BRADI Mnemonic
 • BRASH/Hyperkalemia
 • Reduced oxygen/Glucose/Temp
 • ACS
 • Drugs
 •
surgery • Heart block ... Medications: ... • Beta blockers ... Calcium channel blockers ... Failure of permanent pacemaker
Causes of Syncope - Differential Diagnosis Algorithm
Cardiac - Arrhythmia:
 • Tachyarrhythmia
 • Bradyarrhythmia
 • Supraventricular Tachycardia
Causes of Syncope ... Differential Diagnosis Algorithm ... Atrioventricular Block ... Hypovolemia • Medications ... Differential #Diagnosis #Algorithm
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
with variable block ... atrioventricular block ... valve prolapse • Pacemaker-mediated ... PALPITATIONS: Medications ... consciousness • Near-syncope