Why the study?
What are the characteristics of autonomic tone during orthostatic stress in patients with vasodepressive orthostatic syncope compared to controls?
Population
Patients suffering from vasodepressive orthostatic syncope with a positive response to a 30-minute 60…
Comparison
30-minute 60 degrees upright tilt test vs Comparable control group with a negative…
Design
Case-control
Follow-up
30 minutes
Authors
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Pre-syncopal sympathetic withdrawal was associated with vasodepressive syncope; hypothesis-generating for autonomic monitoring and requires prospective validation.
What are the characteristics of autonomic tone during orthostatic stress in patients with vasodepressive orthostatic syncope compared to controls?
The study suggests that vasodepressive orthostatic syncope is associated with a reduced sympathetic reserve in the immediate pre-syncopal period.
Lagi et al. (1996) studied this question.
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