93 results
LBBB Ventricular Tachycardia Criteria - Lead V1 - Telemetry Diagnosis
WCT is VT IF:
 • Initial r
LBBB Ventricular ... Criteria - Lead V1 ... downstroke #LBBB ... VTach #Criteria #V1
Ventricular Tachycardia in Wide Complex Tachycardia - Telemetry Diagnosis
 • Lead V1 - LBBB Criteria
 •
Diagnosis • Lead V1 ... - LBBB Criteria ... • Lead V1 - RBBB
Modified Sgarbossa Criteria - Diagnostic Checklist for diagnosing MI in LBBB or Pacemaker
1) Identify LBBB or
diagnosing MI in LBBB ... or Pacemaker LBBB ... Dominant S wave in V1 ... (deep S waves V1 ... 1 mm in leads V1
What are the original Sgarbossa Criteria?
- Concordant ST-segment elevation ≥ 1 mm in any lead =
≥ 1 mm in lead V1 ... Sgarbossa #Criteria #LBBB
VT versus SVT with Aberration - Interpretation Cheat Sheet

Features favouring VT
● Absence of typical RBBB or
Absence of typical RBBB ... or LBBB morphology ... leads, i.e. leads V1 ... criteria: both V1
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?
What is the new modified Sgarbossa Criteria?
- Concordant ST-segment elevation ≥ 1 mm in any lead
-
≥ 1 mm in lead V1 ... Criteria #STSRatio #LBBB
Approach to ECGs
Check
 - Age, gender, name
 - 25mm/s; 10mm/mV
 - 1mm = 40ms; 0.1 mV
Rate
Ml, WPW, LVH, LBBB ... MI, WPW, RVH, RBBB ... ) - WideQRS: RBBB ... (V1/V2 rsr', lat ... leads slurred S), LBBB
Modified Sgarbossa Criteria for diagnosing STEMI in the presence of a LBBB If there is concordant
presence of a LBBB ... Concordant STD ≥ 1mm in V1 ... Modified #Criteria #LBBB
Approach to ECGs - VT vs. SVT - Wide Tachycardias
DDx = VT vs. SVT with BBB
All
SVT with BBB All ... or negative) in V1 ... Absence of typical RBBB ... or LBBB morphology ... in contrast to RBBB