Supra-Plasma Expanders

Adverse reactions to plasma volume expanders.

Plasma volume expanders are effective in the restoration of blood volume. All the available plasma volume expanders may rarely induce anaphylactoid reactions, although such reactions are extremely uncommon in shocked patients. The reactions are caused by different mechanisms depending on the solution, and there is little evidence that IgE antibodies are involved. In addition to these reactions,...

Kinetics of isotonic and hypertonic plasma volume expanders.

BACKGROUND Major differences in plasma volume expansion between infusion fluids are fairly well known, but there is a lack of methods that express their dynamic properties. Therefore, a closer description enabled by kinetic modeling is presented. METHODS Ten healthy male volunteers received, on different occasions, a constant-rate intravenous infusion over 30 min consisting of 25 ml/kg of 0.9...

The status of plasma expanders in open heart surgery.

Plasma expanders stabilize human microvessels in microfluidic scaffolds.

Plasma expanders such as dextran and hydroxyethyl starch (HES) are important components of solutions designed to maintain vascular volume in the clinical setting and to preserve organs ex vivo before transplantation. Here, we show that these polymers also exert stabilizing effects on engineered microvessels in microfluidic type I collagen and fibrin scaffolds. Standard growth media, which did n...

Wireless Expanders

This paper introduces an extended notion of expansion suitable for radio networks. A graph G = (V,E) is said to be an (αw, βw)-wireless expander if for every subset S ⊆ V s.t. |S| ≤ αw · |V |, there exists a subset S′ ⊆ S s.t. there are at least βw · |S| vertices in V \S that are adjacent in G to exactly one vertex in S′. The main question we ask is the following: to what extent are ordinary ex...