Familial sinoatrial node dysfunction. Increased vagal tone a possible aetiology.
Open Access
- 1 September 1976
- Vol. 38 (9) , 951-956
- https://doi.org/10.1136/hrt.38.9.951
Abstract
Clinical and electrophysiological studies of a 13-year-old boy with sinus bradycardia revealed sinus node dysfunction. Long-term follow-up data of members of his family indicated familial sinus node dysfucntion. Increased vagal tone was present in all patients. It is suggested that excessive vagal discharge for a pronlonged time may be the basic mechanism of sinus node dysfunction in these patients.Keywords
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