Approach to the Wide Complex Tachycardia: Difference between revisions

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* Younger patient with known paroxysmal tachycardias and who is hemodynamically stable = most like SVT
* Younger patient with known paroxysmal tachycardias and who is hemodynamically stable = most like SVT
== The ACC algorithm <cite>ACC</cite>==
== The ACC algorithm <cite>ACC</cite>==
[[File:VT_algorythm_en.png|800px|thumb|left|SVT vs VT algorhytm. Adapted from <cite>ACC</cite>]]
[[File:VT_algorythm_en.svg|800px|thumb|left|SVT vs VT algorhytm. Adapted from <cite>ACC</cite>]]
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==ECG algorithms to differentiate wide QRS-complex tachycardias==
==ECG algorithms to differentiate wide QRS-complex tachycardias==
Several ECG algorithms have been developed to differentiate wide QRS-complex tachycardias. Most of them performed very well in the population they were based upon. A recent review tested five commonly used algorithms in a control population and found that each of them only performed reasonably well in differentiating VT from SVT (accuracy 66-77%).<cite>Jastrzekbsi</cite> The five criteria tested were:
Several ECG algorithms have been developed to differentiate wide QRS-complex tachycardias. Most of them performed very well in the population they were based upon. A recent review tested five commonly used algorithms in a control population and found that each of them only performed reasonably well in differentiating VT from SVT (accuracy 66-77%).<cite>Jastrzekbsi</cite> The five criteria tested were: