Ventricular Tachycardia: Difference between revisions

Ventricular Tachycardia (view source)

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 ==Localisation of the origin of a ventricular tachycardia==
-The localisation of the origin (or exit site) of a ventricular tachycardia can be helpful in understanding the cause of the VT and is very helpful when planning an ablation procedure to treat a ventricular tachycardia.
-The steps to finding the exit site are:
+The localisation of the origin (or exit site) of a ventricular tachycardia can be helpful in understanding the cause of the VT and is very helpful when planning an ablation procedure to treat a ventricular tachycardia. [[Localisation of the origin of a ventricular tachycardia]] is discussed in a seperate chapter.
-# What is the bundle branch block (BBB) configuration?
-# What is the inferior lead QRS complex polarity?
-# What is the lead I QRS complex polarity?
-# What is the lead aVL QRS complex polarity?
-# What is the lead aVR QRS complex polarity?
-# Where is the R-wave transition point?
-Using this approach and the algorithm on the right <cite>segal</cite> the exit site can be estimated with reasonable accuracy (PPV around 70%).
 ==Examples==