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Localisation of the origin of a ventricular tachycardia: Difference between revisions
Localisation of the origin of a ventricular tachycardia (view source)
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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 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. | ||
Using this approach and the algorithm on the right | Using this approach and the algorithm on the right <cite>segal</cite> the exit site can be estimated with reasonable accuracy (PPV around 70%). | ||
[[File:LBBB_VT_i.svg|thumb|left|300px|Localising the VT exit in LBBB VT with negative QRS complexes inferior]] | [[File:LBBB_VT_i.svg|thumb|left|300px|Localising the VT exit in LBBB VT with negative QRS complexes inferior]] | ||
[[File:LBBB_VT_p.svg|thumb|none|300px|Localising the VT exit in LBBB VT with positive QRS complexes inferior]] | [[File:LBBB_VT_p.svg|thumb|none|300px|Localising the VT exit in LBBB VT with positive QRS complexes inferior]] | ||
[[File:RBBB_VT.svg|thumb|300px|left|Localising the VT exit in RBBB VT with positive QRS complexes inferior]] | [[File:RBBB_VT.svg|thumb|300px|left|Localising the VT exit in RBBB VT with positive QRS complexes inferior]] | ||
[[File:RBBB_VT2.svg|thumb|300px|none|Localising the VT exit in RBBB VT with negative QRS complexes inferior]] | [[File:RBBB_VT2.svg|thumb|300px|none|Localising the VT exit in RBBB VT with negative QRS complexes inferior]] | ||