Wide-complex tachycardia: Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
==Regular== | ===Regular=== | ||
*V-tach | *V-tach | ||
*[[SVT]] w/ BBB (fixed or rate related) | *[[SVT]] w/ BBB (fixed or rate related) | ||
| Line 10: | Line 10: | ||
*[[Sinus tachycardia]] with BBB (fixed or rate related) | *[[Sinus tachycardia]] with BBB (fixed or rate related) | ||
==Irregular== | ===Irregular=== | ||
*[[A-fib]]/flutter w/ variable AV conduction AND BBB (fixed or rate-related) | *[[A-fib]]/flutter w/ variable AV conduction AND BBB (fixed or rate-related) | ||
*[[A-fib]]/flutter w/ variable AV conduction AND accessory pathway | *[[A-fib]]/flutter w/ variable AV conduction AND accessory pathway | ||
Revision as of 03:40, 16 April 2015
Background
- Consider Hyperkalemia & Dig Toxicity
Differential Diagnosis
Regular
- V-tach
- SVT w/ BBB (fixed or rate related)
- SVT w/ accessory pathway
- A flutter w/ BBB
- Sinus tachycardia with BBB (fixed or rate related)
Irregular
- A-fib/flutter w/ variable AV conduction AND BBB (fixed or rate-related)
- A-fib/flutter w/ variable AV conduction AND accessory pathway
- A-fib + Hyperkalemia
- Polymorphic v-tach/torsades
Diagnosis
- Assume ventricular tachycardia until proven otherwise
- See V Tach vs. SVT
Treatment
- Pulseless: Unsynchronized cardioversion (defibrillation) 200J (See Adult pulseless arrest)
- Unstable:
- Regular: Synchronized cardioversion 100-200J
- Irregular: Unsynchronized cardioversion (defibrillation) 200J
- Stable
- Regular (tx as presumed V-tach)
- Procainamide (20mg/min)
- Amiodarone (150mg over 10min, then 1mg/min gtt x 6hrs)
- Agent of choice in setting of AMI or LV dysfunction
- Lidocaine 1-1.5mg/kg IV q5min, repeat prn until up to 300mg/hr
- Irregular (tx as presumed preexcited A-fib)
- Procainamide (20mg/min)
- Amiodarone (150mg over 10min, then 1mg/min gtt x 6hrs)
- Sotalol (100 mg IV over 5 minutes)
- Magnesium 1-2gm IV over 60-90s, then infuse 1-2gm/hr (for Torsades De Pointes)
- Regular (tx as presumed V-tach)
Disposition
- Admit all pts (even if converted to NSR with adenosine)
See Also
Source
- Rosen's