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Differential Diagnosis of Wide Complex Tachycardias

Differential Diagnosis of Wide Complex Tachycardias. Necessary for appropriate treatment CCBs can be very bad in WPW Based on correlation studies Identify factors that favor one rhythm Possibilities: VT, SVT with aberrant conduction, Afib/Aflutter with aberrant conduction.

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Differential Diagnosis of Wide Complex Tachycardias

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  1. Differential Diagnosis of Wide Complex Tachycardias • Necessary for appropriate treatment • CCBs can be very bad in WPW • Based on correlation studies • Identify factors that favor one rhythm • Possibilities: • VT, SVT with aberrant conduction, Afib/Aflutter with aberrant conduction

  2. 1. Ventricular Tachycardia 2. Ventricular Tach 3. VT 4. VT 5. VT 6. VT 7. VT 8. VT 9. SVT with preexisting BBB 10. SVT with aberrant conduction Top 10 reasons for WCT* * Ken Grauer. A Practical Guide to ECG Interpretation. 2nd

  3. Factors Favoring VT • Concordance across all V leads (+/-) • ERAD axis deviation • QRS > .14 sec • AV dissociation • Suggestive QRS morphology

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