Key result
Pco, estimated using multiple weight carotid compression tonography, was found to vary from normal values in patients with chronic cerebrovascular disease.
Observational
A method using multiple weight carotid compression tonography can estimate carotid system pressure dynamics, which vary from normal in patients with chronic cerebrovascular disease.
Pco variation may indicate altered carotid pressures in chronic cerebrovascular disease; leaves open diagnostic utility pending prospective validation.
A semilogarithmic relationship has been established between changes in intraocular pressure and ocular vascular volume after acute common carotid occlusion. This relationship has been used to derive a series of equations that relate the ocular blood volume change after acute common carotid occlusion and the resultant pressure changes in the intraocular vascular compartment by a theoretical constant termed the coefficient of vascular rigidity and a variable, Pco, that reflects the pressure dynamics in the carotid system after acute carotid occlusion. A method for estimating Pco in patients using multiple weight carotid compression tonography is described. Pco was found to vary from normal values in patients with chronic cerebrovascular disease.
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Best et al. (1972) conducted an observational in Chronic cerebrovascular disease. Multiple weight carotid compression tonography vs. Normal values/patients was evaluated on Pco (pressure dynamics in the carotid system). Pco, estimated using multiple weight carotid compression tonography, was found to vary from normal values in patients with chronic cerebrovascular disease.
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