Key result
Young persons with emotional syncope exhibited higher vagal autonomic tone than healthy controls, including a slower resting heart rate (67.8 vs 73.2 beats/min; P=0.005).
Why the study?
Do young persons with emotional stress-related syncope have higher vagal autonomic tone compared to healthy controls?
Case-Control (n=100)
No
Do young persons with emotional stress-related syncope have higher vagal autonomic tone compared to healthy controls?
Absolute Event Rate: 67.8% vs 73.2%
p-value: p=0.005
Young persons who faint under emotional stress exhibit higher baseline vagal autonomic tone compared to healthy controls, predisposing them to cardioinhibitory syncope.
No takes yet. Share an insight, caveat, or question.
Higher vagal tone may identify emotional syncope risk in youth; hypothesis-generating and should not yet change practice.
Stephen Barron (1993) conducted a case-control in Syncope (n=100). History of syncope related to emotional distress vs. Age-matched healthy volunteers was evaluated on Resting heart rate (beats/min) (p=0.005). Young persons with emotional syncope exhibited higher vagal autonomic tone than healthy controls, including a slower resting heart rate (67.8 vs 73.2 beats/min; P=0.005).
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