Sinus Bradycardia: Difference between revisions

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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.  
In sinusbradycardia the sinus node fires at a slow (<60 bpm) rate. Causes of sinusbradycardia include:
*normal physiology in an athelete
*medication (beta-blockers)
*ischemia (typically inferior myocardial infarction with involvement of the sinus node artery)
*hypothermia
*hypothyroidism.  
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Revision as of 15:24, 1 February 2009

This is part of: Sinus node rhythms and arrhythmias
Sinusbradycardia
{{{locatieafbeelding}}}
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. Causes of sinusbradycardia include:

  • normal physiology in an athelete
  • medication (beta-blockers)
  • ischemia (typically inferior myocardial infarction with involvement of the sinus node artery)
  • hypothermia
  • hypothyroidism.