Sinus Bradycardia Information


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Home :: Diseases :: Sinus Bradycardia

Sinus Bradycardia Information

Sinus bradycardia is a heart rate slower than 50 beats/min due to increased vagal influence on the normal pacemaker or organic disease of the sinus node. The rate usually increases during exercise or administration of atropine. In healthy individuals, and especially in patients who are in excellent physical condition, sinus bradycardia to a rate of 50 beats/min or even lower is a normal finding. However, severe sinus bradycardia may be an indication of sinus node pathology, especially in elderly patients and individuals with heart disease. It may cause weakness, confusion, or syncope if cerebral perfusion is impaired. Atrial and ventricular ectopic rhythms are more apt to occur with slow sinus rates. Pacing may be required if symptoms correlate with the bradycardia.





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