With an aim to develop clinically relevant small diameter vascular grafts, these investigations detail a perfusion culture model that incorporates temporal pulse pressure variation. Our objective was to test the hypothesis that short-term variation in heart rate, such as changes in respiratory activity,...
A variation in a quantity which is normally constant; has a finite duration and is usually brief compared to the time scale of interest. (physiology) The regular, recurrent, palpable wave of arterial distention due to the pressure of the blood ejected with each contraction of the heart. ...
then to maintain optimum homeostasis in pulse pressure and flow, the autonomic processes must increase the luminal area of the trunk relative to that of the branches. In the macrocirculation, if a central artery stiffens by 25%, (without significant reduction in autonomic regulation due to ...
Systolic pressure variation (SPV) and its dDown component have been shown to be sensitive factors in estimating intravascular volume in patients undergoing... M,Shamir,L,... - 《British Journal of Anaesthesia》 被引量: 284发表: 1999年 Pulse oximetry plethysmographic waveform during changes in bl...
A variation in a quantity which is normally constant; has a finite duration and is usually brief compared to the time scale of interest. (physiology) The regular, recurrent, palpable wave of arterial distention due to the pressure of the blood ejected with each contraction of the heart. ...
Pulse transit time (PTT) and pulse wave velocity (PWV), respectively, were shown to have a correlation with systolic blood pressure (SBP) and have been rep... Gesche,H.Grosskurth,D.Küchler,G.Patzak,A. - 《European Journal of Applied Physiology》 被引量: 0发表: 2012年 ...
Edward M.Dzialowski,Dane A.CrossleyII, inSturkie's Avian Physiology (Sixth Edition), 2015 11.4.1.3Relationship between Arterial Pressure and Flow Each heartbeat sends apulsethrough the arterial system, which arrives later at sites more distal to the heart. The velocity at which the pulse wave...
Changes of heart rate and blood pressure during pregnancy As shown in Fig. 1, the overall heart rate (HR) had an increasing trend with gestational age. There was significant difference in both HR and systolic and diastolic blood pressures (SBP and DBP) between the measurements from gestational...
(Secchi disk depths and total suspended solids) were the most critical environmental factors that explained the variation in community composition relative to the major eukaryotic groups. Only factors such as time, followed by salinity, and NO3−played a crucial role for eukaryotes, with time ...
In a multivariate model, carotid stiffness parameters were constantly and independently associated with age, mean arterial pressure, pulse pressure, heart rate and body mass index. Our study provides a normogram of carotid arterial stiffness and compliance indices obtained with the echo-tracking method...