Sinus Bradycardia

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Revision as of 20:04, 22 July 2007 by Drj (talk | contribs) (New page: {{Chapter|Sinus node rhythms and arrhythmias}} {{Arrhythmias| | name = Sinusbradycardia | locatieImage = | atrial_frequency = < 60 bpm | ventricular_frequency = same | regularity = regula...)
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This is part of: Sinus node rhythms and arrhythmias
Atrial rate < 60 bpm
Ventricular rate same
Regularity regular
Origin sinus node
P-wave normal
Effect of adenosine slows down
Example ECG: Sinusbradycardia of around 40 bpm.Sinusbradycardia
Example ECG2:

In sinusbradycardia the sinus node fires at a slow (<60 bpm) rate. This can be caused by e.g.: medication (beta-blockers), ischemia (typically inferior myocardial infarction with involvement of the sinus node artery), hypothermia and hypothyroidism. In an athlete a resting heart rate of < 60 bpm often is normal.