Dynamics of Carotid Sinus Elasticity During Pressor Reaction

Dynamics of carotid sinus elasticity during pressor reaction.

• As it has been shown, the deformation of the vascular wall (and not the intravascular pressure by itself) may be considered as an adequate stimulus of the sinocarotid receptors. This fact, as well as the significance of pulsating pressure in excitation of these receptors,' 3 consequently prove that the elasticity of the sinocarotid region may be essential in. determining the excitation of the...

Reaction dynamics during the testing of polymerization catalyst

The olefins polymerization process in a slurry reactor is discussed. The reaction rate dynamics was analyzed and the contributions of feed flow, gas-liquid mass transfer, polymerization reaction, and catalyst deactivation were estimated. The propylene solubility in a solvent mixture “heptane” was calculated using Soave-Redlich-Kwong equation of state. These data were then approximated by Henry-...

Carotid sinus massage in carotid sinus syndrome.

CASE REPORT A 71-year-old man was admitted to the cardiac unit having had a syncopal episode whilst eating lunch. During the meal he felt nauseated, dizzy and faint and then lost consciousness. After rapid spontaneous recovery he complained of further nausea and vomited until hospital admission. There were no epileptiform movements during the syncope. For the previous year he had had almost dai...

Both central command and exercise pressor reflex reset carotid sinus baroreflex.

In decerebrate unanesthetized cats, we determined whether either "central command," the exercise pressor reflex, or the muscle mechanoreceptor reflex reset the carotid baroreflex. Both carotid sinuses were vascularly isolated, and the carotid baroreceptors were stimulated with pulsatile pressure. Carotid baroreflex function curves were determined for aortic pressure, heart rate, and renal vascu...

Appearance of ventricular ectopic rhythm during carotid sinus pressure.