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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Anaesthesia 55 (2000), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Haemoglobin release from 40 suspensions of packed red blood cells in modified fluid gelatin, 4% albumin solution, 6% hydroxyethyl starch and normal saline was investigated in vitro during circulation with a roller pump from a heart–lung machine for 120 min at a flow rate of 2.5 l.min−1 at room temperature. The lowest haemoglobin release was obtained with erythrocytes in modified fluid gelatin, whereas free haemoglobin concentrations became progressively higher with albumin, hydroxyethyl starch and normal saline [median free haemoglobin (interquartile range) after 120 min circulation: gelatin 493 (360–601) mg.l−1, albumin 692 (590–1111) mg.l−1, hydroxyethyl starch 1121 (692–1518) mg.l−1, normal saline 1178 (881–1757) mg.l−1, p 〈 0.001]. Modified fluid gelatin appears to have potent erythrocyte protective properties similar to those of albumin. This effect could decrease mechanical haemolysis during extracorporeal circulation or cell saver autotransfusion if modified fluid gelatin is used as part of a priming solution or as an additive in wash solutions.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1460-9592
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We investigated haemodynamic, acid–base and electrolyte changes during almost total plasma replacement with hydroxyethyl starch (HES) and physiological balanced electrolyte solution (PBE) by using a cell saver in ten young pigs. In the PBE group an additional 3550 (444) ml crystalloid solution [Mean (SD)] was infused over the course of the study in order to maintain pulmonary capillary wedge pressure. Plasma protein levels decreased in both groups and the colloid osmotic pressure increased in HES and decreased in PBE. At the end of the study, body weight [HES 10.4 (1), PBE 13.1 (1.4) kg, P 〈 0.01] and lactic acid concentration [HES 0.9 (0.3), PBE 2.9 (1.3) mmol.l −1, P 〈 0.01] was higher and tissue oxygen delivery [HES 327 (22), PBE 89 (29) ml.min·m2, P 〈 0.01] was lower in the PBE group. There were only moderate acid–base changes in both groups, but at the end, anion gap was significant lower in HES. In conclusion, maintenance of colloid osmotic pressure close to the physiological range of infants seems to be advantageous during major paediatric surgery.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Manuelle Medizin 38 (2000), S. 342-345 
    ISSN: 1433-0466
    Keywords: Schlüsselwörter Kraniomandibularsystem ; Bewegungssystem ; Testverfahren aus manueller Medizin ; Chirotheraphie ; Osteopathie ; Effekte kieferorthopädischer/zahnärztlicher Therapie ; Keywords Craniomandibular system ; Musculoskeletal system ; Testing methods manual medicin ; Chirotherapy ; Osteopathy ; Effects of dental therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The craniomandibular system has an outstanding position within the musculoskeletal system. This is widely accepted by manual medicine, chirotherapy and osteopathy. Craniomandibular dysfunction has dominant effects on the musculoskeletal system (primary lesion). Five testing methods of manual medicine are described for examining this influence rapidly and reproducibly. In the same way, dentists can check to see whether their therapy has any negative influence on the musculoskeletal system with regard dysfunction or a positive influence on regular function.
    Notes: Zusammenfassung Das kraniomandibuläre System hat innerhalb des muskuloskeletalen Systems eine Sonderstellung. Von der manuellen Medizin, der Chirotherapie und Osteopathie wird das allgemein akzeptiert. Funktionsstörungen aus diesem System wirken sich dominant auf das Bewegungssystem aus (primäre Läsion). Beschrieben werden 5 bewährte Testverfahren aus der manuellen Medizin, die diese Störeinflüsse schnell und exakt reproduzierbar nachweisen. Entsprechend lassen sich kieferorthopädische und zahnärztliche Aufbissbehelfe und Bissnahmen prüfen. Verursachen sie bei den beschriebenen Testverfahren keine pathologischen Ergebnisse, so können sie als funktionsgerecht gelten.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-055X
    Keywords: Schlüsselwörter Hemihepatektomie ; Hämodynamik ; Oxygenierung ; Lebervenenkatheter ; Key words Hemihepatectomy ; Hemodynamic ; Oxygenation ; Liver venous catheter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Objective: The aim of this study was to compare low dose dopamine and dopexamine with respect to of liver-venous oxygen saturation, oxygen delivery and – demand, liver function tests and cardiocirculatory effects in the reperfusion period during a hemihepatectomy operation with occlusion of the liver hilus. Methods: Twenty patients were studied in a randomised, doubleblind setting. They either received 2 µg/kg per min dopamine or 0.5 µg/kg per min dopexamine perioperatively. For monitoring purposes a pulmonary artery and a liver venous catheter were placed. At four different time points hemodynamic parameter were assessed and blood samples were drawn. Results: Significant changes between groups were found 5 min after opening the liver hilus for the cardiac index and the systemic oxygen delivery, as well as at the end of the operation for pulmonary shunt volume, which had increased more in the dopexamine group. No significant difference between liver venous oxygen saturation and liver function tests was found. Conclusion: Until more detailed studies concerning the influence of dopamine on the hepatic-splanchnic region during liver surgery are performed, dopexamine can not be considered superior to dopamine during these operations.
    Notes: Zusammenfassung Fragestellung: Gibt es einen Unterschied bezüglich der leber-venösen Sauerstoffsättigung, des Sauerstoffangebots und -verbrauchs, der Leberfunktion sowie der kardiozirkulatorischen Effekte während der Reperfusion zwischen niedrig dosiertem Dopamin und Dopexamin bei Leberteilresektionen mit Leberhilusokklusion? Methodik: 20 Patienten wurden randomisiert, doppelblind in zwei Gruppen eingeteilt und erhielten entweder 2 µg/kg/min Dopamin oder 0,5 µg/kg/min Dopexamin. Für das perioperative Monitoring wurden ein pulmonalarterieller- und ein Lebervenenkatheter gelegt. Zu vier Meßzeitpunkten wurden Parameter der Hämodynamik erhoben und Blut abgenommen. Ergebnisse: Ein signifikanter Unterschied zwischen den Gruppen bestand 5 min nach Eröffnung des Leberhilus in einem stärker angestiegenen Cardiacindex und systemischen Sauerstoffangebot sowie am OP-En-de in einem stärker angestiegenen pulmonalen Shuntvolumen in der Dopexamingruppe. Es gab keinen Unterschied bezüglich der leber-venösen Sauerstoffsättigung und der Leberfunktionsparameter. Schlußfolgerung: Bis weiterführende Untersuchungen mit differenzierter Betrachtung der Wirkung von Dopexamin bei leber-chirurgischen Eingriffen vorliegen, ist Dopexamin bei diesen Operationen gegenüber Dopamin nicht als überlegen zu betrachten.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0495
    Keywords: Key words Geochemistry ; Porosity ; Radioactivity ; Radon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract  A steady radon exhalation is assumed in most publications. In a village of North-East Hungary, however, high radon concentrations have been measured, differing strongly in neighbouring houses and varying in time, due to the interplay of geochemical phenomena.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Intensive care medicine 22 (1996), S. 1466-1467 
    ISSN: 1432-1238
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-1238
    Keywords: Key words Hydroxyethyl starch ; Modified fluid gelatin ; Chloride ; Anion gap ; Acid base ; Saline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In ten piglets (body weight 8.2–11.6 kg), acid base, electrolyte and anion gap changes were investigated during almost total plasma replacement with hydroxyethyl starch (HES) and modified fluid gelatin (GEL) in saline solution using a cell saver autotransfusion technique. During the study, there were only moderate acid base changes, but marked disturbances in anion balance. At study end, the mean chloride concentration was significantly higher (mmol/l: normal values 97–108, HES 116 ± 1.5, GEL 108 ± 1.1, p 〈 0.01) and the mean anion gap was significantly lower in the HES group in comparison to the GEL group (mmol/l: normal values 5–14, HES 3 ± 1.7, GEL 11.9 ± 0.9, p 〈 0.01). It is concluded that plasma replacement with electroneutral HES, but not with negatively charged GEL, can lower the anion gap irrespective of the underlying disease. This can be misleading when the anion gap is used for differential diagnosis of metabolic acidosis in patients after large volume infusion of synthetic colloids.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 361 (1998), S. 513-514 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 365 (1999), S. 103-105 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A method is presented for calculating the absorption spectrum, the film thickness and the index of refraction from IR reflection spectra. Considering real test conditions (partial incoherence, scattering) a routinely usable instrument was created with this direct calculation of the absorption spectrum, which provides a very good correspondence between the measurement and simulation also without any initial information about the expected spectrum. This method is applied to characterize hard coatings deposited on iron substrates by glow discharge assisted CVD processes with organic silicon and boron compounds as precursors. In addition to the qualitative microstructural characterization of these coatings, this method is suitable for a rapid, exact and non-destructive determination of the film thickness and the index of refraction.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' journal of analytical chemistry 365 (1999), S. 255-257 
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Reinforcement effects in composites are widely influenced by fibre coatings. A detailed understanding of their microstructure and chemical composition is of great interest. Boron nitride films were deposited continuously on fibre rovings of various ceramics in CVD reactors of vertical as well as horizontal position. XPS depth profilings show that the film compositions are close to stoichiometric BN with carbon and oxygen impurities in the range of 10 at%. Cross-sections of separated fibres were investigated by HREM and TEM diffraction. All BN films are hexagonal turbostratic. The (002) layers with an increased distance (about 0.36 nm) showed a mean stacking sequence near to graphite and a characteristic orientation to the fibre in the interface region. We assume the gas flow type and hence the exchange rate of matter and energy determines the film structure in this region. With increasing film thickness the (002) layers fold randomly in all directions or form nanocrystals at elevated temperatures.
    Type of Medium: Electronic Resource
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