1. Ventricular Arrhythmias
J. William Schleifer, MD, Komandoor Srivathsan, MD 
Cardiology Clinics 
Volume 31, Issue 4, Pages (November 2013)
DOI: /j.ccl
Copyright © 2013 Elsevier Inc. Terms and Conditions

2. Fig. 1
Criteria for diagnosing a wide QRS complex tachycardia as VT. AV, atrioventricular; LBBB, left bundle branch block; RBBB, right bundle branch block.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions

3. Fig. 2
12-lead ECG showing monomorphic VT. This ECG shows a regular monomorphic tachycardia with a wide QRS of 160 milliseconds and an atypical QRS morphology in the precordial leads. The Brugada criteria can be applied. Step 1: There is an R wave in V1, so continue to step 2. Step 2: the longest RS interval in a precordial lead is slightly more than 100 milliseconds in V5 and is thus consistent with VT, even although no atrioventricular dissociation (step 3) is visible. Step 4: R is greater than R′ in V1, and S is greater than R in V6, meeting morphologic criteria for VT in V1 and V6.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions

4. Fig. 3
12-lead ECG showing coved ST segment elevation in leads V1 to V3 in a patient with Brugada syndrome.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions

5. Fig. 4
12-lead ECG showing the initiation of TdP with a long-short sequence occurring in the setting of a prolonged QT interval.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions

6. Fig. 5
Use of an Impella device for percutaneous hemodynamic support in a patient with intractable VT. The arrow indicates the tip of the Impella catheter within the left ventricle. A defibrillator lead is also seen in the right ventricular apex.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions

7. Fig. 6 Therapeutic protocol for treating ES. IV, intravenous.
Cardiology Clinics  , DOI: ( /j.ccl )
Copyright © 2013 Elsevier Inc. Terms and Conditions