Localisation of the origin of a ventricular tachycardia: Difference between revisions
Jump to navigation
Jump to search
mNo edit summary |
mNo edit summary |
||
| Line 3: | Line 3: | ||
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]] | ||
Revision as of 11:42, 9 May 2010
Areas of the left ventricle where VT's can originate from: The left ventricle is depicted as having been opened. Regionsare as follows: AB: anterobasal; AM: mid anterior; AA anterior apex; SB: basal septum; SM, midseptum; SA, apical septum; PB: basal posterior; PM: mid posterior; PA: posterior apex. Adapted from Miller et al.[1]
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 [2] the exit site can be estimated with reasonable accuracy (PPV around 70%).
