×
MedSchool: Ace Your OSCEsThe Medical Company
 
 
 
 
 
GET - On the App Store
View
Bradyarrhythmias
 
 

Slow Atrial Fibrillation

 
 
 
Bookmark

Overview

Atrial fibrillation is most commonly associated with a rapid ventricular response, though AF with a slow ventricular response may occur when there is reduced conduction of fibrillatory waves through the conduction pathways.
  • Look For

  • Bradycardia with ventricular rate <60
  • Irregular rhythm
  • No P waves, with oscillating baseline waves
  •  
  • Causes of Atrial Fibrillation

  • Severe acute illness - especially in septic or postoperative patients
  • Cardiac - post cardiac surgery, myocardial infarction, valvular disease, cardiomyopathy, congestive cardiac failure, congenital heart disease, Wolff-Parkinson-White
  • Cardiovascular risk factors - hypertension, diabetes, obesity
  • Pulmonary embolism
  • Obstructive sleep apnoea
  • Thyrotoxicosis
  • Alcohol abuse
  • Causes of Slowed Ventricular Response

  • Complete heart block
  • Drugs - beta blockers, calcium channel blockers, digoxin
Next Page
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge
Sign Up Now
   
 
 

Snapshot: Initialising...