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Author: H. Goslinga
Publisher: Springer Science & Business Media
ISBN: 3642692605
Category : Medical
Languages : en
Pages : 214
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Book Description
The hemodynamic significance of the flow properties of blood was put into perspective only during the past decade. Advances in modern technologies today allow the quantitative analy sis of the fluidity of blood and its components under conditions approximating the flow in vivo, particularly those in the microcirculation. The hematocrit is the most important of the determinants of blood fluidity (reciprocal value of blood viscosity); acute increases in the hematocrit exert deleterious effects on circulation and oxygen transport owing to impaired fluidity of blood. High viscosity of plasma due to hyper- or dysproteinemias initiates the microcirculatory dysfunctions in hyperviscosity syndromes. Furthermore, the fluidity or deformability of red cells might be critically diminished and therefore cause redistribution of blood elements and adversely affect the resistance to flow within the microvessels. In low flow states blood fluidity most likely becomes the key determinant for microvessel perfu sion, overriding the neural and local metabolic control mechanisms operative at physiological conditions to adjust blood supply to tissue demand. Microcirculatory disturbances are there fore encountered whenever driving pressures are reduced, as in shock or hypotension, and distal to stenoses of macrovessels, but also in hemoconcentration due to plasma volume con traction, polycythemia, leukemia, and dysproteinemia. Based on experimental studies exploring the possibilities and limitations, with regard to improving the fluidity of blood by reducing the hematocrit, the concept of intentional hemo dilution has been introduced to clinical medicine.
Author: H. Goslinga
Publisher: Springer Science & Business Media
ISBN: 3642692605
Category : Medical
Languages : en
Pages : 214
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Book Description
The hemodynamic significance of the flow properties of blood was put into perspective only during the past decade. Advances in modern technologies today allow the quantitative analy sis of the fluidity of blood and its components under conditions approximating the flow in vivo, particularly those in the microcirculation. The hematocrit is the most important of the determinants of blood fluidity (reciprocal value of blood viscosity); acute increases in the hematocrit exert deleterious effects on circulation and oxygen transport owing to impaired fluidity of blood. High viscosity of plasma due to hyper- or dysproteinemias initiates the microcirculatory dysfunctions in hyperviscosity syndromes. Furthermore, the fluidity or deformability of red cells might be critically diminished and therefore cause redistribution of blood elements and adversely affect the resistance to flow within the microvessels. In low flow states blood fluidity most likely becomes the key determinant for microvessel perfu sion, overriding the neural and local metabolic control mechanisms operative at physiological conditions to adjust blood supply to tissue demand. Microcirculatory disturbances are there fore encountered whenever driving pressures are reduced, as in shock or hypotension, and distal to stenoses of macrovessels, but also in hemoconcentration due to plasma volume con traction, polycythemia, leukemia, and dysproteinemia. Based on experimental studies exploring the possibilities and limitations, with regard to improving the fluidity of blood by reducing the hematocrit, the concept of intentional hemo dilution has been introduced to clinical medicine.
Author: L. Dintenfass
Publisher: Springer Science & Business Media
ISBN: 9780852004135
Category : Medical
Languages : en
Pages : 502
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Book Description
Author: Richard E. Klabunde
Publisher: Lippincott Williams & Wilkins
ISBN: 1975150090
Category : Medical
Languages : en
Pages : 717
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Book Description
Praised for its concise coverage, this highly accessible monograph lays a foundation for understanding the underlying concepts of normal cardiovascular function and offers a welcome alternative to a more mechanistically oriented approach or an encyclopedic physiology text. Clear explanations, ample illustrations and engaging clinical cases and problems provide the perfect guidance for self-directed learning and prepare you to excel in clinical practice.
Author: Beth H. Shaz
Publisher: Newnes
ISBN: 0123977886
Category : Science
Languages : en
Pages : 1015
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Book Description
The second edition of Transfusion Medicine and Hemostasis continues to be the only "pocket-size" quick reference for pathology residents and transfusion medicine fellows. It covers all topics in blood banking, transfusion medicine, and clinical and laboratory based coagulation. Short, focused chapters, organized by multiple hierarchical headings, are supplemented with up to 10 suggested reading citations. This single reference covers essentially all the topics required to meet the goals and objectives of a major program in transfusion medicine and clinical coagulation. New chapters in the coagulation testing section reflect the development of new tests available and their incorporation into clinical practice. Coverage includes essential updates on the importance of new cellular therapies, peripheral blood and bone marrow hematopoietic progenitor cells, as well as cord blood banking and regenerative medicine. The authors also examine advances in the understanding of molecular testing and pathogen reduction in two separate quality control chapters (one for blood centers and one for hospitals). - Updated content covers new coagulation tests, cellular therapies, and quality control issues - Easy to use, with focused, well-defined chapters in a standardized format throughout - Offers quick "cross-reference" lists at the end of each chapter - Includes lists of common abbreviations and indexes that cross reference diagnostic, clinical and therapeutic commonalities
Author:
Publisher:
ISBN:
Category : Blood coagulation disorders
Languages : en
Pages : 556
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Book Description
Monthly, with annual cumulation. Recurring bibliography from MEDLARS data base. Index medicus format. Entries arranged under subject, review, and author sections. Subject, author indexes.
Author: Hieltje Goslinga
Publisher: Springer
ISBN: 9780387126203
Category : Blood
Languages : en
Pages : 193
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Book Description
Author: United States. Office of Scientific Research and Development. Committee on medical research
Publisher:
ISBN:
Category :
Languages : en
Pages : 488
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Book Description
Author: Shannon L. Farmer
Publisher: Simon and Schuster
ISBN: 1947951572
Category : Health & Fitness
Languages : en
Pages : 514
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Book Description
Much has been published on heart health, kidney health, and gut health. But how many of us are aware of our blood health? Is your blood as healthy as it should be? How would you even know? Blood Works is a fascinating new blood owners’ guide to help you care for the health of your most precious fluid—your blood. About 2 billion people globally are anemic, and almost as many suffer from iron deficiency without anemia. Many don’t even know they have it, just feeling tired, lethargic, and “foggy-headed.” Sound familiar? Over 600 million more suffer from acute or sometimes unrecognized chronic blood loss from causes such as heavy menstrual bleeding, obstetric hemorrhage, gastrointestinal bleeding, surgery, and trauma. Anemia, iron deficiency, and bleeding are signs of “blood failure” and have major negative health effects. Blood Works, with contributions from 48 leading international medical experts, is a must have book for all who want to look after their blood health. Your blood is the essential fluid that keeps you alive. Yet, while many of us know our cholesterol level and blood pressure, few of us are aware of our blood count. What we don’t know can affect our everyday quality of life and put us at risk if we have bleeding, an injury, or require hospitalization. Blood, and the vessels that contain it, make up the largest organ system in the body. Its balance and health must be maintained. For many decades, the treatment of first resort for anemia and blood loss has been blood transfusion, which is essentially a “liquid organ” transplant from another person. In heart failure or kidney failure, organ transplantation is not first-line treatment. In blood failure, blood “transplantation” should not be the first thing we reach for. Since the 1990s, scientific research has shown that the common use of blood transfusion is not the most effective treatment in many medical situations. It has been identified as one of the most overused treatments in modern medicine, costing billions of dollars, while causing changes in the recipient’s immune system that may increase the risk of complications and death. In October 2021, the World Health Organization called for the urgent global implementation of Patient Blood Management (PBM), stating “our own blood is still the best thing to have in our veins.” Blood Works is one of the most exciting books on blood health you will read. The book zooms in on why medical experts from around the world now recognize the need for fundamental change in the way a patient’s blood is managed. Known as PBM, Patient Blood Management places the person receiving treatment at the center of decisions involving their lifeblood. Its aim is to improve general health and treatment outcomes by managing and preserving a patient’s own blood while empowering them to share in making decisions. Meticulously researched and referenced, masterfully illustrated, and featuring personal stories from patients and their families, Blood Works is a compelling read. It will have a profound impact on your health and the health of your loved ones and is an invaluable resource for health care professionals.
Author: Roland N. Pittman
Publisher: Biota Publishing
ISBN: 1615047212
Category : Medical
Languages : en
Pages : 117
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Book Description
This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Author: United States. Navy Department. Bureau of Medicine and Surgery
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 208
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Book Description
