The advocated approach utilizes subject - specific data - based models of cerebral hemodynamics to quantify the dynamic effects of resting - state changes in arterial blood pressure and end - tidal CO2 (the putative inputs) upon cerebral blood flow velocity... (the putative output) measured at the middle cerebral artery via transcranial Doppler (TCD). (content.iospress.com)
Autoregulation of renal blood flow and glomerular filtration rate in neonatal puppies appear to be relatively inefficient in response to rapid changes in systemic arterial blood pressure.7 In adult dogs, the renin — angiotensin system is an important regulatory mechanism; however, in neonates, renal blood flow is directly correlated with arterial pressure and does not seem to be altered by inhibition of angiotensin until approximately 6 weeks of age. (todaysveterinarynurse.com)
While non-invasive measurement of arterial blood pressure in cats was first described in the veterinary literature in the 1970s, it remained primarily a research tool and was not commonly used in clinical practice. (winnfelinefoundation.org)