10 results
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
also known as Mobitz ... prolongation of the PR ... QRS complex, the PR ... #Clinical #EM #IM ... #Mobitz1 #Mobitz
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
also known as Mobitz ... prolongation of the PR ... QRS complex, the PR ... #Clinical #EM #IM ... #Mobitz1 #Mobitz
Mobitz II heart block is characterized on a surface ECG by intermittently nonconducted P waves not
Mobitz II heart ... not preceded by PR ... not followed by PR ... #Clinical #EM #IM ... #Mobitz2 #Mobitz
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Placement Indications Class ... I or II • Mobitz ... 3rd degree block Class ... LBBB with syncope Class ... arrest, prolonged PR
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• Prolonged PR ... Treatment 2nd Degree, Mobitz ... • Prolonged PR ... . 2nd Degree, Mobitz ... HeartBlocks #Types #Classification
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... Class I (Ia, Ib ... rate and prolongs PR ... rate and prolongs PR ... VaughanWilliams #Classification
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... : CLASS 1 - Sodium ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
Atrioventricular Blocks (AV blocks) - ECG Diagnosis Summary
First Degree AV Block
 • The P wave is
PR interval ... Block Type I aka Mobitz ... There is constant PR ... • The PR interval ... electrocardiogram #classification
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
Vaughan Williams Classification ... : CLASS 1 - Sodium ... depolarization • ↑ PR ... velocity) - ↑ PR ... #Pharmacology #Classification
M (Mallampati Score): essentially giving you an external assessment tool about the patient’s ability to open
Class I and Class ... Clinical #Diagnosis #EM ... anesth #Mallampati #Classification