Dextran�Plasma Volume Expanders Clinical Experiences Especially with Low Molecular Weight Preparations

2015 ◽  
pp. 914-926
Author(s):  
G. Arturson
Keyword(s):  
Molecular Weight ◽  
Plasma Volume ◽  
Low Molecular Weight ◽  
Clinical Experiences

Rheomacrodex

1964 ◽  
Vol 2 (6) ◽  
pp. 24-24
Keyword(s):  
Molecular Weight ◽  
Blood Vessels ◽  
High Molecular Weight ◽  
Plasma Volume ◽  
Tissue Damage ◽  
Sucrose Solution ◽  
Red Cells ◽  
Lower Molecular Weight ◽  
Low Molecular Weight

Dextrans are chain polymers of glucose of high molecular weight, which are produced when certain bacteria are incubated with sucrose solution. Solutions of dextrans of high or low molecular weight may be extracted. Dextrans of high molecular weight (75,000 – 200,000) are used as plasma volume expanders (e. g. Intradex - Glaxo; Dextraven - Benger), and dextrans of lower molecular weight (40,000) are claimed to be useful in improving flow by preventing any tendency that red cells have to clump and block small blood vessels (Rheomacrodex - Pharmacia). Such clumping of red cells may occur after tissue damage; it is sometimes called sludging of blood.

Mechanisms of postoperative prolonged plasma volume expansion with low molecular weight hydroxethy starch (HES 200/0.62, 6%)

1995 ◽  
Vol 21 (7) ◽  
pp. 577-583 ◽  
Author(s):  
A. C. Degrémont ◽  
M. Ismaïl ◽  
M. Arthaud ◽  
B. Oulare ◽  
O. Mundler ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Plasma Volume ◽  
Volume Expansion ◽  
Low Molecular Weight ◽  
Plasma Volume Expansion

Clinical Experiences with Low-Molecular Weight Heparins in Pediatric Patients

2001 ◽  
Vol 103 (5) ◽  
pp. 345-353 ◽  
Author(s):  
Sigrun Hofmann ◽  
Ralf Knoefler ◽  
Norbert Lorenz ◽  
Gabriele Siegert ◽  
Joerg Wendisch ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Pediatric Patients ◽  
Low Molecular Weight ◽  
Clinical Experiences ◽  
Low Molecular Weight Heparins

A high-performance oil-free backing pump for electron microscopes

1978 ◽  
Vol 36 (1) ◽  
pp. 110-111
Author(s):  
G.K.W. Balkau ◽  
E. Bez ◽  
J.L. Farrant
Keyword(s):  
Molecular Weight ◽  
Electron Microscope ◽  
Hot Spots ◽  
High Performance ◽  
Carbonaceous Material ◽  
Contamination Rate ◽  
Low Molecular Weight ◽  
Principal Source ◽  
Rotary Pumps ◽  
Electron Microscopes

The earliest account of the contamination of electron microscope specimens by the deposition of carbonaceous material during electron irradiation was published in 1947 by Watson who was then working in Canada. It was soon established that this carbonaceous material is formed from organic vapours, and it is now recognized that the principal source is the oil-sealed rotary pumps which provide the backing vacuum. It has been shown that the organic vapours consist of low molecular weight fragments of oil molecules which have been degraded at hot spots produced by friction between the vanes and the surfaces on which they slide. As satisfactory oil-free pumps are unavailable, it is standard electron microscope practice to reduce the partial pressure of organic vapours in the microscope in the vicinity of the specimen by using liquid-nitrogen cooled anti-contamination devices. Traps of this type are sufficient to reduce the contamination rate to about 0.1 Å per min, which is tolerable for many investigations.

Low-molecular-weight heparin in the prevention and treatment of thromboembolic disorders

1998 ◽  
Vol 1 (5) ◽  
pp. 166-174 ◽  
Author(s):  
Evelyn R Hermes De Santis ◽  
Betsy S Laumeister ◽  
Vidhu Bansal ◽  
Vandana Kataria ◽  
Preeti Loomba ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Low Molecular Weight Heparin ◽  
Low Molecular Weight ◽  
Prevention And Treatment
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