11 results
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT - Wide Tachycardias ... SVT with BBB All ... Absence of typical RBBB ... or LBBB morphology ... in contrast to RBBB
RBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • R >
RBBB Ventricular ... Tachycardia Criteria ... Diagnosis WCT is VT ... Biphasic QRS #RBBB ... #cardiology #ekg
LBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • Initial r
LBBB Ventricular ... Tachycardia Criteria ... Diagnosis WCT is VT ... downstroke #LBBB ... #cardiology #ekg
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
diagnosing MI in LBBB ... or Pacemaker LBBB ... conducted 2) LBBB ... - Suspect STEMI ... #lbbb
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
Absence of typical RBBB ... or LBBB morphology ... Morphology criteria ... Aberration #Aberrancy #Comparison ... #Diagnosis #Cardiology
Algorithm for the Evaluation of Regular, Wide-Complex Tachycardia
1. aVR: Is the initial deflection in aVR positive?
morphology in V1 ... consistent with either LBBB ... or RBBB? ... Interpretation #ECG #EKG #Electrocardiogram ... #Diagnosis #Cardiology
Here’s an ECG of a patient with 100% Acute LAD Occlusion

Remember that RBBB normally has ST
Remember that RBBB ... Depression in V1 ... STEMI Criteria misses ... Total #ECG #EKG #Electrocardiogram ... #Clinical #Cardiology
Approach to ECGs - Ischemia
MI = Biomarkers + ECG or echo/angiogram findings
Pathologic Q - 1/3 height
wide, can be new/old ... tall T wave in V1 ... , unless LBBB/LVH ... EKG #diagnosis #electrocardiogram ... #cardiology #STEMI
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
for diagnosing STEMI ... presence of a LBBB ... Concordant STD ≥ 1mm in V1 ... S #Diagnosis #Cardiology ... #LBBB
EKG in Acute Pulmonary Embolism
The sensitivity and specificity for EKG findings in acute PE are low.
EKG
Drive: • Sinus Tachycardia ... Incomplete or Complete RBBB ... Dominant R Wave in V1 ... • Non-specific ST-T ... #electrocardiogram