Torsade de Pointes: Difference between revisions

Jump to navigation Jump to search

Torsade de Pointes (view source)

Revision as of 14:02, 23 July 2007

503 bytes removed ,  23 July 2007
m
no edit summary
mNo edit summary
mNo edit summary
Line 9: Line 9:
| p_wave = AV-dissociation
| p_wave = AV-dissociation
| adenosine = no rate reduction (sometimes accelerates)
| adenosine = no rate reduction (sometimes accelerates)
| example = An example of Torsade de Pointes. A normal sinus beat is followed by a ventricular extrasystole ('''short'''ly after the sinus beat), the compensatory pause results in a '''long'''er interval to the next beat. This longer beat therefore has a longer [[Conduction|QT interval]]. The next beat follows '''short'''ly therafter, withing the QT interval. Not all ventricular cells have been repolarized by that time and a ventricular arrhythmia results. This short-long-short sequence is typical for Torsades de pointes.[[Image:Rhythm_torsade.png|250px|Initiation of Torsade de Pointes (TdP) by a short-long-short sequence]]
| example2 = A twelve lead registration of Torsade de pointes. Reprinted with permission ''Copyright 2001 Texas Heart Institute'' <cite>Khan</cite> [[Image:12leadTorsade.jpg|250px|Torsade de Pointes (TdP) on a 12 lead ECG]]
}}
}}


Line 17: Line 15:
There has been much debate in the ''Circulation'' journal among French and American scientist whether one should write ''Torsades de Pointes'' or ''Torsade de Pointes''. As for now ''Torsade'' is prefered (unless one sees rotations around more than one axis in one episode), but both forms are used in similar frequency.<cite>Moise</cite>
There has been much debate in the ''Circulation'' journal among French and American scientist whether one should write ''Torsades de Pointes'' or ''Torsade de Pointes''. As for now ''Torsade'' is prefered (unless one sees rotations around more than one axis in one episode), but both forms are used in similar frequency.<cite>Moise</cite>
{{clr}}
{{clr}}
==Examples==
<gallery>
Image:Rhythm_torsade.png|Initiation of Torsade de Pointes (TdP) by a short-long-short sequence
| example2 = A twelve lead registration of Torsade de pointes. Reprinted with permission ''Copyright 2001 Texas Heart Institute'' <cite>Khan</cite> [[Image:12leadTorsade.jpg|250px|Torsade de Pointes (TdP) on a 12 lead ECG]]
</gallery>
==References==
==References==
<biblio>
<biblio>
Retrieved from "https://en.ecgpedia.org/index.php?title=Special:MobileDiff/2905"

Navigation menu