Dr Bill Jamieson once again joined the pod to go through bradyarrhythmias in the second part of our arrhythmia series
In this episode:
- Discussion on what is bradycardia and why it may not always be an issue
- The history taking and investigations required of the bradycardic patient and possible causes of bradycardia
- We go through AV block and Jamie reveals how AV block is like a dysfunctional marriage!
(ECGS courtesy of Life in the Fast Lane)
First Degree AV block - fixed prolonged PR interval
Second Degree AV block (Mobitz I/Wenckebach) - progessively prolonging PR interval until there is a dropped QRS complex and the cycle starts again
Second Degree AV Block (Mobitz II) - fixed ratio of P wave to QRS complex such as 2:1 or 3:1
Complete or Third Degree Heart Block - no relationship between P waves and QRS complex
Bill mentioned bifasicular and trifasicular blocks and sick sinus syndrome. What are these?
Bifasicular block - RBBB plus LAD/RAD
Trifasicular block - Bifasicular plus First Degree Heart Block
Here is the Resus Council algorithm for bradyarrhythmias: