Difference between revisions of "Sinus Bradycardia"

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In sinusbradycardia the sinus node fires at a slow (<60 bpm) rate. Causes of sinusbradycardia include:
+
In sinus bradycardia the sinus node fires at a slow (<60 bpm) rate. Causes of sinus bradycardia include:
*normal physiology in an athelete
+
*Normal physiology in an athelete
*medication (beta-blockers)
+
*Medication (beta-blockers)
*ischemia (typically inferior myocardial infarction with involvement of the sinus node artery)
+
*Ischemia (typically inferior myocardial infarction with involvement of the sinus node artery)
*hypothermia
+
*Hypothermia
*hypothyroidism.  
+
*Hypothyroidism.  
 
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Revision as of 18:17, 27 January 2010

This is part of: Sinus node rhythms and arrhythmias
Sinusbradycardia
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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 sinus bradycardia the sinus node fires at a slow (<60 bpm) rate. Causes of sinus bradycardia include:

  • Normal physiology in an athelete
  • Medication (beta-blockers)
  • Ischemia (typically inferior myocardial infarction with involvement of the sinus node artery)
  • Hypothermia
  • Hypothyroidism.