Ventricular Arrhythmias: Difference between revisions
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Ventricular arrhythmias are almost allways wide-QRS-complex arrhythmias. When confronted with a wide-QRS-complex tachycardia it can be difficult to differentiate between a [[supraventricular tachycardia]] with [[aberrancy]] or [[Ventricular Tachycardia|ventricular tachycardia]]. A separate chapter deals with this dilemma: [[Approach to the Wide Complex Tachycardia]]. | |||
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{| class="wikitable" font-size="90%" | {| class="wikitable" font-size="90%" | ||
|- style="text-align:center;background-color:#6EB4EB;" | |- style="text-align:center;background-color:#6EB4EB;" | ||
|+'''An overview of ventricular tachycardias''', follow the [[ | |+'''An overview of ventricular tachycardias''', follow the [[Approach to the Wide Complex Tachycardia]] | ||
|- | |- | ||
! | ! | ||
| Line 25: | Line 27: | ||
| 110-250 bpm | | 110-250 bpm | ||
| ventricle (VT) | | ventricle (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| no rate reduction (sometimes accelerates) | | no rate reduction (sometimes accelerates) | ||
|- | |- | ||
| Line 34: | Line 36: | ||
| 400-600 bpm | | 400-600 bpm | ||
| ventricle (VT) | | ventricle (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| none | | none | ||
|- | |- | ||
| Line 43: | Line 45: | ||
| 150-300 bpm | | 150-300 bpm | ||
| ventricle (VT) | | ventricle (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| none | | none | ||
|- | |- | ||
| Line 52: | Line 54: | ||
| 50-110 bpm | | 50-110 bpm | ||
| ventricle (VT) | | ventricle (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| no rate reduction (sometimes accelerates) | | no rate reduction (sometimes accelerates) | ||
|- | |- | ||
| Line 61: | Line 63: | ||
| 150-300 bpm | | 150-300 bpm | ||
| ventricle (VT) | | ventricle (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| no rate reduction (sometimes accelerates) | | no rate reduction (sometimes accelerates) | ||
|- | |- | ||
! [[Bundle-branch re-entrant tachycardia]] | ! [[Bundle-branch re-entrant tachycardia]]* | ||
| [[Image: | | [[Image:bb_reentry_small.svg|200px]] | ||
| regular | | regular | ||
| | | 60-100 bpm | ||
| | | 150-300 bpm | ||
| | | ventricles (VT) | ||
| AV-dissociation | | [[AV-dissociation]] | ||
| | | no rate reduction | ||
|- | |||
|colspan="8"|* Bundle-branch re-entrant tachycardia is extremely rare | |||
|} | |} | ||
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===Also read:=== | ===Also read:=== | ||
*Flowchart: [[ | *Flowchart: [[Approach to the Wide Complex Tachycardia]] | ||
*[[Introduction to Arrhythmias]] | *[[Introduction to Arrhythmias]] | ||
*[[Mechanisms of Arrhythmias]] | *[[Mechanisms of Arrhythmias]] | ||
Latest revision as of 19:00, 24 February 2013
| Author(s) | J.S.S.G. de Jong | |
| Moderator | J.S.S.G. de jong | |
| Supervisor | ||
| some notes about authorship | ||
Ventricular arrhythmias are almost allways wide-QRS-complex arrhythmias. When confronted with a wide-QRS-complex tachycardia it can be difficult to differentiate between a supraventricular tachycardia with aberrancy or ventricular tachycardia. A separate chapter deals with this dilemma: Approach to the Wide Complex Tachycardia.
| example | regularity | atrial frequency | ventricular frequency | origin (SVT/VT) | p-wave | effect of adenosine | |
|---|---|---|---|---|---|---|---|
| Wide complex (QRS>0.12) | |||||||
| Ventricular Tachycardia | 
|
regular (mostly) | 60-100 bpm | 110-250 bpm | ventricle (VT) | AV-dissociation | no rate reduction (sometimes accelerates) |
| Ventricular Fibrillation | 
|
irregular | 60-100 bpm | 400-600 bpm | ventricle (VT) | AV-dissociation | none |
| Ventricular Flutter | 
|
regular | 60-100 bpm | 150-300 bpm | ventricle (VT) | AV-dissociation | none |
| Accelerated Idioventricular Rhythm | 
|
regular (mostly) | 60-100 bpm | 50-110 bpm | ventricle (VT) | AV-dissociation | no rate reduction (sometimes accelerates) |
| Torsade de Pointes | 
|
regular | 150-300 bpm | ventricle (VT) | AV-dissociation | no rate reduction (sometimes accelerates) | |
| Bundle-branch re-entrant tachycardia* | 
|
regular | 60-100 bpm | 150-300 bpm | ventricles (VT) | AV-dissociation | no rate reduction |
| * Bundle-branch re-entrant tachycardia is extremely rare | |||||||