17 results
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... also known as Mobitz ... prolongation of the PR ... QRS complex, the PR ... #Mobitz1 #Mobitz
Type 1 Second-degree AV block, also known as Mobitz I or Wenckebach periodicity, is almost always
Type 1 Second-degree ... also known as Mobitz ... prolongation of the PR ... QRS complex, the PR ... #Mobitz1 #Mobitz
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
Heart Blocks 1st Degree ... Treatment 2nd Degree ... , Mobitz I Heart ... , Mobitz II HeartBlock ... HeartBlocks #Types #Classification
Second degree AV Block type II (aka Mobitz II)
 • There is constant PR interval (normal
Second degree AV ... Block type II (aka Mobitz ... There is constant PR ... #Second #Degree ... AVBlock #TypeII #MobitzII
Pacemaker Placement Indications
Class I:
 • Third degree block
 • Advanced 2nd degree block
 • Symptomatic Mobitz
Class I: • Third degree ... • Advanced 2nd degree ... • Symptomatic Mobitz ... I or II • Mobitz ... arrest, prolonged PR
Second Degree Heart Block, Mobitz Type I (Wenckebach)

P waves and QRS complexes are normal but... 
•
Second Degree Heart ... Block, Mobitz Type ... • PR interval ... the AV node #Mobitz
Second Degree Heart Block, Mobitz Type II

• p waves are normal 
• QRS complexes are usually
Second Degree Heart ... Block, Mobitz Type ... branch block • PR ... His-Purkinje system #Mobitz
Atrioventricular (AV) Blocks

First Degree AV Block - "If your R is far from your P than
with prolonged PR ... AV Block - Mobitz ... AV Block - Mobitz ... not you have a Mobitz ... with progressive PR
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
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