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Introduction to Arrhythmias: Difference between revisions
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Arrhythmias (non-normal heart rhythms) can be a challenge to the person who tries to understand them. But with a systematical approach, diagnosis is often less difficult than it seems at the beginning. | |||
First look at the heart rate: | |||
*>100 bpm = tachycardia | |||
*<60 bpm = bradycardia | |||
*are there extra beats? -> [[Ectopic Beats]] | |||
Secondly it is important to assess the origin of the arrhythmia: | |||
*If the QRS < 120ms (i.e. a narrow complex), then it is either a [[Sinus node rhythms and arrhythmias|sinus arrhythmia]], [[Supraventricular Rhythms|supraventricular rhythm]] or a [[Junctional Tachycardias|junctional tachycardia]] | |||
*If the QRS > 120ms it is either a [[Ventricular Arrhythmias|ventricular tachycardia]] or a [[Supraventricular Rhythms|supraventricular rhythm]] with additional [[bundle branch block]] | |||
Normal heart rhythm is explained in: | Normal heart rhythm is explained in: | ||
*[[Sinus node rhythms and arrhythmias]] | *[[Sinus node rhythms and arrhythmias]] | ||