Key result
Neck suction did not overpower vasoconstriction in the splanchnic and forearm circulations induced by lower body negative pressure, despite reducing mean arterial pressure from 103 to 95 mmHg.
Why the study?
Does neck suction counteract vasoconstriction secondary to lower body negative pressure in normal human subjects?
Population
7 normal human subjects
Comparison
Neck suction at -40 mmHg for 400-600 ms at each… vs Lower body negative pressure alone at -40 mmHg
Design
Other
Authors
Loading...
Neck suction does not override lower body negative pressure vasoconstriction despite lowering mean arterial pressure; leaves open carotid baroreflex modulation of regional circulations.
Does neck suction counteract vasoconstriction secondary to lower body negative pressure in normal human subjects?
Vasoconstriction in response to combined cardiopulmonary and aortic inhibition by lower body negative pressure is not overpowered by carotid sinus stimulation via neck suction.
Escourrou et al. (1993) studied Healthy (n=7). Neck suction (NS) during lower body negative pressure (LBNP) vs. LBNP alone was evaluated on Vascular resistance in the splanchnic region and forearm. Neck suction did not overpower vasoconstriction in the splanchnic and forearm circulations induced by lower body negative pressure, despite reducing mean arterial pressure from 103 to 95 mmHg.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: