Template:Tachycardia (wide) DDX: Difference between revisions

Revision as of 06:48, 5 April 2019

Wide-complex tachycardia

Assume any wide-complex tachycardia is ventricular tachycardia until proven otherwise (it is safer to incorrectly assume a ventricular dysrhythmia, than to incorrectly assume a supraventricular tachycardia with abberancy)

Regular
- Monomorphic ventricular tachycardia
- PSVT with aberrant conduction:
  - PSVT with bundle branch block (fixed or rate related)
  - PSVT with accessory pathway
  - Atrial flutter with bundle branch block
- Sinus tachycardia with bundle branch block (fixed or rate related)
- Accelerated idioventricular rhythm (consider if less than or ~120 bpm)
- Metabolic
  - Hyperkalemia
  - Digoxin toxicity
  - Severe metabolic acidosis
Irregular
- A-fib/flutter with variable AV conduction AND bundle branch block (fixed or rate-related)
- A-fib/flutter with variable AV conduction AND accessory pathway (e.g. WPW)
- A-fib + Hyperkalemia
- Polymorphic ventricular tachycardia
  - Torsades

@@ Line 2: / Line 2: @@
 ''Assume any wide-complex tachycardia is [[ventricular tachycardia]] until proven otherwise (it is safer to incorrectly assume a ventricular dysrhythmia, than to incorrectly assume a supraventricular tachycardia with abberancy)''
 *Regular
-**[[Ventricular tachycardia]] (>80% of cases)
+**Monomorphic [[ventricular tachycardia]]
 **[[PSVT]] with aberrant conduction:
 ***[[PSVT]] with [[bundle branch block]] (fixed or rate related)
@@ Line 17: / Line 17: @@
 **[[A-fib]]/[[flutter]] with variable AV conduction AND accessory pathway (e.g. [[WPW]])
 **[[A-fib]] + [[Hyperkalemia]]
-**Polymorphic [[v-tach]]/[[torsades]]
+**Polymorphic [[ventricular tachycardia]]
+***[[Torsades]]