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  • Produktbild: Blood Viscosity and Shock
  • Produktbild: Blood Viscosity and Shock
Band 160

Blood Viscosity and Shock The Role of Hemodilution, Hemoconcentration and Defibrination

Aus der Reihe Anaesthesiologie und Intensivmedizin Anaesthesiology and Intensive Care Medicine

Fr. 137.00

inkl. gesetzl. MwSt., Versandkostenfrei

Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

01.04.1984

Verlag

Springer Berlin

Seitenzahl

196

Maße (L/B/H)

24.4/17/1.3 cm

Gewicht

395 g

Auflage

Softcover reprint of the original 1st ed. 1984

Sprache

Englisch

ISBN

978-3-540-12620-1

Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

01.04.1984

Verlag

Springer Berlin

Seitenzahl

196

Maße (L/B/H)

24.4/17/1.3 cm

Gewicht

395 g

Auflage

Softcover reprint of the original 1st ed. 1984

Sprache

Englisch

ISBN

978-3-540-12620-1

Herstelleradresse

Springer-Verlag KG
Sachsenplatz 4-6
1201 Wien
AT

Email: GPSR Kontakt

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  • Produktbild: Blood Viscosity and Shock
  • Produktbild: Blood Viscosity and Shock
  • I Review of the Literature.- I Viscosity in General.- I.1 Introduction.- I.2 The Concept of Viscosity: Shear Stress and Shear Rate.- I.3 The Behavior of Viscosity: Newtonian and Non-Newtonian Fluids, Hemodilution and Defibrination.- I.4 The Fahraeus-Iindquist Phenomenon and the Inversion Phenomenon.- I.5 Plasma Skimming.- I.6 The Total Cross-Sectional Area of the Vascular Bed and the Flow Rate at Various Places in the Circulatory System.- I.7 The “Average Shear Rate” (4 v/r).- I.8 Internal Viscosity.- I.9 Exceptions to Poiseuille’s Law: Laminar and Turbulent Flow and Rigid and Elastic Vascular Systems.- 1.10 Guyton’s Equation of Circulatory Control.- II Viscosity in Relation to Cardiac Output, Blood Pressure and Peripheral Resistance.- II.1 Factors which Determine the Cardiac Output: The Relationship Between Cardiac Output and Viscosity.- II.1.1 Peripheral Factors.- II.1.1.1 Mean Circulatory Filling Pressure (Psf) Minus the Right Atrial Pressure ÂPra)..- II.1.1.2 The Resistance to Venous Return.- II.1.2 Central Factors.- II.1.2.1 The Pumping Action of the Heart: Hypo- and Hyperactivity.- II.1.3 Equilibrium Values of Cardiac Output and Venous Return Under Normal Conditions.- II.2 Factors which Determine Blood Pressure: The Relationship Between Blood Pressure and Viscosity.- II.3 Factors which Determine Peripheral Resistance: The Relationship Between Peripheral Resistance and Viscosity.- III The Clinical Significance of Viscosity.- III. 1 Introduction.- III.2 Viscosity in the Postcapillary Venular Bed.- III.3 Relationship Between Hematocrit and Optimal O2-Transport Capacity at Varying Shear Rates.- III.4 High Viscosity Syndromes.- III.4.1 Myocardial Infarction, Angina Pectoris and Intermittent Claudication.- III.4.2 Cerebral Infarction.- III.4.3 Shock and Trauma.- III.4.4 Neoplasms.- III.4.5 Genetic Factors: Sickle-Cell Anemia.- III.4.6 Hormonal Factors: Diabetes Mellitus and Oral Contraceptives.- III.4.7 Pre-Eclampsia and Normal Pregnancy.- III.4.8 Toxic Factors: Cigarette Smoking and Alcohol.- III.4.9 Psychic Influences: Stress and Psychosis.- III.4.10 Hypo- and Hyperthermia.- IV Lowering the Viscosity with the Aid of Hemodilution.- IV.l Introduction.- IV.2 Physiological Consequences of Hemodilution.- IV.3 Clinical Applications.- IV.4 Criteria and Limitations.- IV.5 The Colloid Osmotic Pressure and the Colloid Hydrostatic Pressure Gradient.- IV.6 Comparison of Various Transfusion Fluids.- IV.7 Guidelines for Infusion in Case of Threats to the Circulation.- IV.8 Some Critical Remarks with Regard to Hemodilution.- V Lowering the Viscosity by Means of Defibrination with the Aid of Arvin.- V.1 Introduction.- V.2 Properties of Arvin.- V.3 Side Effects of Arvin.- V.4 Antidotes.- V.5 Indications.- V.6 Contraindications.- V.7 Treatment Schedules.- V8 Comparison of Arvin and Heparin.- V.9 Specific Action of Arvin.- V.9.1 The Cardiac Status.- V.9.2 The Microcirculation.- V.9.3 Deep Vein Thrombosis (DVT).- VI Viscometry.- VI.1 Introduction.- VI.2 Problems of Interpretation.- V1.3 Problems Related to the Measurement Techniques.- VI.4 Various Types of Measuring Apparatus.- VI.4.1 Capillary Viscometers.- VI.4.2 Rotation Viscometers.- VI.4.3 The Rheodeer Controlled Stress Rheometer.- VI.5 Alterations in Viscosity with Time, Due to the Factor Aggregation ⇋ Disaggregation.- VI.6 Viscosity Parameters.- VI.7 Determination of the Yield Shear Stress.- VI.7.1 The Casson Plot Method (Extrapolation).- VI.7.2 The Torque Decay Method (Merill 1965).- VI.7.3 The Rheoscan Viscosity Curve (Humphreys 1975).- VI.8 Determination of the Asymptotic Viscosity.- VI.9 Artefacts in the Measurement Methods.- VI.10 Normal Values (in Man) with the Contraves LS 30 According to Humphreys.- II Material and Methods.- VII Material and Methods.- VII.1 General Remarks.- VII.1.1 The Experimental Animals.- VII.1.2 Anesthesia.- VII.1.3 Artificial Respiration.- VII.1.4 General Preparation.- VII.2 Specific Procedures.- VII.2.1 The Series with Extracorporeal Circulation (ECC) or Cardiopulmonary Bypass (CPB).- VII.2.1.1 Surgical Procedures.- VII.2.1.2 Hemorrhagic Shock Protocol.- VII.2.1.3 Monitoring.- VII.2.2 The Intact Series.- VII.2.2.1 Surgical Procedures.- VII.2.2.2 Hemorrhagic Shock Protocol.- VII.2.2.3 Monitoring.- VIII Specific Measuring Methods.- VIII.1 Control of the Degree of Defibrination.- VIII.1.1 Activated Clotting Time.- VIII.1.2 Method of Claus for Determining the Fibrinogen Concentration.- VIII.2 Transcutaneous PO2 Measurement.- VIII.3 Determination of the Colloid Osmotic Pressure (COP).- VIII.4 Measurement of Cardiac Output.- References.- III Results.- IX Paper I Effects of Reduction in Viscosity by Means of Hemodilution (Dextran 40) and Defibrination (Arvin) Using a Shock Model with Extracorporeal Circulation.- X Paper II Effects of Viscosity Reduction by Means of Defibrination (Arvin) and Moderate Hemodilution (0.9% NaCl) in a Shock Model with Intact Animals.- XI Paper III Effects of Changes in Viscosity by Means of Defibrination (Arvin) and Changes in Hematocrit (High and Low Ht) Using a Shock Model with Intact Animals.- XII Paper IV Integration of Blood Viscosity into a Clinical Concept.- XIII Paper V Standardization and Automation of the Measurement of Whole Blood Viscosity.- Summary and Conclusions.- General Summing-Up.