Key result
Application of 30-mmHg neck suction or pressure showed that increased carotid transmural pressure totally inhibited sympathetic activity after a latency of about 2 seconds.
Why the study?
Does modification of carotid baroreceptor activity alter sympathetic and parasympathetic outflow in healthy adults?
Population
10 healthy adults
Comparison
Modification of afferent carotid baroreceptor… vs Opposite pressure changes
Design
Other
Authors
Loading...
Transient sympathetic inhibition in healthy adults warrants no clinical change; leaves open distinct central vagal versus sympathetic baroreflex pathways.
Does modification of carotid baroreceptor activity alter sympathetic and parasympathetic outflow in healthy adults?
Muscle sympathetic responses to changing levels of afferent baroreceptor traffic are profound but transitory, suggesting common baroreceptor input is processed differently in central vagal and sympathetic networks.
Wallin et al. (1982) studied Healthy (n=10). Neck suction or pressure was evaluated on Sympathetic outflow to the muscle vascular bed and parasympathetic outflow to the heart. Application of 30-mmHg neck suction or pressure showed that increased carotid transmural pressure totally inhibited sympathetic activity after a latency of about 2 seconds.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: