A comparative analysis of the persistence of capillary blood flow oscillations in the left and right rat kidneys

Hemodynamics and Hemorheology

“…The strong coupling between (i) the structure of the suspension in the network branches, (ii) the apparent viscosity in these branches, and (iii) the phase separation at the bifurcations can not only lead to heterogeneities in the hematocrit distribution, but also to spatio-temporal fluctuations in the flow (Kiani et al 1994). Oscillations and instabilities of microvascular flows have been observed in-vivo (Mezentseva et al 2016) and are suspected of having an impact on the regulation of blood flow and tissue oxygenation. To date, the question of the stability of these flows has formed the subject of some recent theoretical studies but very little experimental validation (Davis andPozrikidis 2014, Karst et al 2017), making it a relatively active subject of studies aimed at clarifying the purely passive mechanisms of microcirculation regulation.…”