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Premature Ventricular Complexes (PVC's) - Summary Framework

Why PVCs?  Can be the first manifestation of cardiac
Premature Ventricular Complexes ... Palpitations, Presyncope ... : • Broad QRS complex ... #Ventricular #Complexes
Common Causes of the Different Categories of Dizziness #Diagnosis #PrimaryCare #EM #IM #Differential #Dizziness #Vertigo #Disequilibrium
Disequilibrium #Presyncope
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
VT: - No RS complexes ... - Very broad complexes ... produce a hybrid complex ... onset of the QRS complex ... S-wave - RSR' complexes
TiTrATE schema to approach to Dizziness
 • Time Course: Continuous or Episodic
 • Triggers: Present or
Cardiovascular (presyncope
Premature atrial complex (PAC) - ECG Recognition
 • Prematurity and altered P wave morphology.
 • P
Premature atrial complex ... premature junctional complex ... premature #atrial #complexes
Differential Diagnosis of Syncope
First, is it syncope? History is very important for distinguishing syncope from other
dizziness, vertigo, presyncope
Causes of Dizziness / Lightheadedness - Differential Diagnosis Algorithm
Lightheaded, unsteady, disoriented - Non-vertigo
Organic Disease
 • Presyncope/Vasodepressor
Organic Disease • Presyncope
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
dissociation (P and QRS complexes ... beats (hybrid complex ... negative (QS) complexes
Causes of Falls in the Elderly - Differential Diagnosis Algorithm
- Intrinsic Factors - 
Presyncope / Syncope
Intrinsic Factors - Presyncope
The 3 Fates of a Premature Atrial Complex
 • PAC can be conducted with normal QRS
Premature Atrial Complex ... premature #atrial #complexes