Tachycardia: Difference between revisions

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'''Narrow complex tachycardia:''' QRS duration < 120 ms.  
'''Narrow complex tachycardia:''' QRS duration < 120 ms.  
A narrow complex tachycardia is most likely to be a SVT. However, also a septal VT or His-tachycardia can appear as a narrow complex tachycardia.  
A narrow complex tachycardia is most likely to be a SVT. However, also a septal VT or His-tachycardia can appear as a narrow complex tachycardia.  


'''Wide complex tachycardia:''' QRS duration > 120 ms.
'''Wide complex tachycardia:''' QRS duration > 120 ms.
A wide complex tachycardia can be due to a SVT with aberration, pre-exited tachycardia (eg antidrome re-entry tachycardia) or VT.  
 
A wide complex tachycardia can be due to a SVT with aberration, pre-exited tachycardia (eg antidrome re-entry tachycardia) or VT.


===Differentiation===
===Differentiation===