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Introduction to Arrhythmias

34 bytes removed, 19:47, 27 January 2010
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[[Image:VT_SVT_LBBB_WCT.svg|thumb|300px|Morphologic criteria to differentiate between SVT vs. VT in a wide complex tachycardia. This is part of the [[media:wideQRS_tachycardia_flow.png|wide complex tachycardia flowchart]]]]
Arrhythmias (non-normal heart rhythms) can be a challenge to the person who tries to understand them. But , but with a systematical systematic approach, diagnosis is often less difficult than it seems may appear at the beginningfirst.
A good stepwise approach to interprete interpret the heart rhythm is to follow these steps:
*What is the '''ventricular [[Rate|heart rate]]'''?
**>100 bpm = tachycardia
** If the heart axis turns significantly when compared to the heart axis during sinus rhythm a ventricular origin of the rhythm is more likely.
* What is the '''clinical setting'''?
** A wide complex tachycardia in a hemodynamically instable unstable 70 -year -old man with previous myocardial infarction should be concidered considered a [[ventricular tachycardia]] until proven otherwise** A wide complex tachycardia in a 24 -year -old women woman with recurrent spells of tachycardia the that respond to vagal manouevres maneuvers is most likely an [[AVNRT]] with aberrant conduction.


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