G015 Improving arterial system compliance in hypertension through increasing blood flow

Arterial compliance abnormalities in isolated systolic hypertension.

Arterial compliance measurements using intraarterial pulse contour analysis and a modified Windkessel model were carried out in 19 patients with isolated systolic hypertension (> or = 160/< or = 90 mm Hg) and compared to measurements in 29 patients with essential hypertension (diastolic blood pressure [BP] > or = 95 mm Hg) and 47 normotensive control subjects. Arterial capacitive compliance was...

Increasing Renal Blood Flow

Background and objectives: Many clinicians believe that low-dose dopamine (LDD) [2 g/kg/min] increases renal blood flow (RBF) and medium-dose norepinephrine (MD-NE) [0.4 g/kg/min] decreases RBF. They also believe that MD-NE might induce mesenteric and/or coronary ischemia. In fact, the effects of these drugs on renal and vital organ blood flow are poorly understood. The aim of this study was to...

The Digital Blood Flow, Arterial Pressure, and Vascular Resistance in Arterial Hypertension and in Coronary Thrombosis.

Improving survival in pulmonary arterial hypertension.

M ore than 50 yrs ago, DRESDALE et al. [1] reported a series of 39 patients with unexplained pulmonary hypertension and coined the term ‘‘primary pulmonary hypertension’’ to describe the condition, a term that has been revised to ‘‘idiopathic pulmonary arterial hypertension’’ in the most recent classification [2]. Idiopathic pulmonary arterial hypertension is a disease of the small pulmonary ar...

The Rheology of Blood Flow in a Branched Arterial System.

Blood flow rheology is a complex phenomenon. Presently there is no universally agreed upon model to represent the viscous property of blood. However, under the general classification of non-Newtonian models that simulate blood behavior to different degrees of accuracy, there are many variants. The power law, Casson and Carreau models are popular non-Newtonian models and affect hemodynamics quan...