102 results
Antiarrhythmics Pharmacology Summary
Cardiac Conduction Phases:
Phase 0 - Ventricular Depolarization:
 • Na+ channels open leading to a
- Ventricular Depolarization ... • Atrial depolarization ... Vaughan Williams Classification ... and magnitude of depolarization ... #Pharmacology #Classification
Differential Diagnosis for ST Segment Elevations
 - ACUTE STEMI 
 - PULMONARY EMBOLISM 
 - LBBB
Differential Diagnosis ... EMBOLISM - LBBB (PACEMAKER ... - BENIGN EARLY REPOLARIZATION ... STElevation #STEMI #Differential
Antiarrhythmics - Vaughan Williams Classification:
CLASS 1 - Sodium Channel Blockers:
 • MOA: Block fast Na+ channels
Vaughan Williams Classification ... and magnitude of depolarization ... phase 4 to slow depolarization ... prolong AV node repolarization ... #Pharmacology #Classification
Antiarrhythmics - Vaughan Williams Classification
Class I (Ia, Ib, Ic) - Na+ Channel Blockade
 • Slows depolarization
Vaughan Williams Classification ... Blockade • Slows depolarization ... Blockade • Slows depolarization ... Blockade • Slows depolarization ... VaughanWilliams #Classification
Temporary / External Pacing
 • Transvenous & epicardial pacing are temporary methods of supporting brady- &
permanent implanted pacemaker ... required to trigger depolarization ... to identify a depolarization ... MD @nickmmark #pacemaker
Pacemaker Coding Terminology
#Diagnosis #Cardiology #PPM #Pacemaker #LetterCode #Coding #Classification #Table #CoreEM
Pacemaker Coding ... Cardiology #PPM #Pacemaker ... LetterCode #Coding #Classification
Pacemaker Operating Modes
1 - Chamber paced
     A (atrium), V (ventricle), D (dual/both)
2
Pacemaker Operating ... or paced atrial depolarization ... after ventricular depolarization ... to an intrinsic depolarization ... order to initiate depolarization
Congenital Heart Disorders - Classification and Differential Algorithm

- Amy Chung, MD, MSc @AmyChung 

#Congenital #Heart #Disorders
Heart Disorders - Classification ... and Differential ... Disorders #Diseases #Classification ... #Differential #
Primary and Secondary Headache Types - Differential Classification

- By Dr. Eric Strong @DrEricStrong

#Headaches #Primary #Secondary #Types
Headache Types - Differential ... Classification ... Secondary #Types #Differential ... #Diagnosis #Classification
The first three letters refer to chamber paced, chamber sensed, and response to sensed events. The
Cardiology #PPM #Pacemaker ... LetterCode #Coding #Classification