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Author: Joshua Scallan
Publisher: Morgan & Claypool Publishers
ISBN: 1615040668
Category : Science
Languages : en
Pages : 86
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Book Description
The partition of fluid between the vascular and interstitial compartments is regulated by forces (hydrostatic and oncotic) operating across the microvascular walls and the surface areas of permeable structures comprising the endothelial barrier to fluid and solute exchange, as well as within the extracellular matrix and lymphatics. In addition to its role in the regulation of vascular volume, transcapillary fluid filtration also allows for continuous turnover of water bathing tissue cells, providing the medium for diffusional flux of oxygen and nutrients required for cellular metabolism and removal of metabolic byproducts. Transendothelial volume flow has also been shown to influence vascular smooth muscle tone in arterioles, hydraulic conductivity in capillaries, and neutrophil transmigration across postcapillary venules, while the flow of this filtrate through the interstitial spaces functions to modify the activities of parenchymal, resident tissue, and metastasizing tumor cells. Likewise, the flow of lymph, which is driven by capillary filtration, is important for the transport of immune and tumor cells, antigen delivery to lymph nodes, and for return of filtered fluid and extravasated proteins to the blood. Given this background, the aims of this treatise are to summarize our current understanding of the factors involved in the regulation of transcapillary fluid movement, how fluid movements across the endothelial barrier and through the interstitium and lymphatic vessels influence cell function and behavior, and the pathophysiology of edema formation. Table of Contents: Fluid Movement Across the Endothelial Barrier / The Interstitium / The Lymphatic Vasculature / Pathophysiology of Edema Formation
Author: Joshua Scallan
Publisher: Morgan & Claypool Publishers
ISBN: 1615040668
Category : Science
Languages : en
Pages : 86
Get Book Here
Book Description
The partition of fluid between the vascular and interstitial compartments is regulated by forces (hydrostatic and oncotic) operating across the microvascular walls and the surface areas of permeable structures comprising the endothelial barrier to fluid and solute exchange, as well as within the extracellular matrix and lymphatics. In addition to its role in the regulation of vascular volume, transcapillary fluid filtration also allows for continuous turnover of water bathing tissue cells, providing the medium for diffusional flux of oxygen and nutrients required for cellular metabolism and removal of metabolic byproducts. Transendothelial volume flow has also been shown to influence vascular smooth muscle tone in arterioles, hydraulic conductivity in capillaries, and neutrophil transmigration across postcapillary venules, while the flow of this filtrate through the interstitial spaces functions to modify the activities of parenchymal, resident tissue, and metastasizing tumor cells. Likewise, the flow of lymph, which is driven by capillary filtration, is important for the transport of immune and tumor cells, antigen delivery to lymph nodes, and for return of filtered fluid and extravasated proteins to the blood. Given this background, the aims of this treatise are to summarize our current understanding of the factors involved in the regulation of transcapillary fluid movement, how fluid movements across the endothelial barrier and through the interstitium and lymphatic vessels influence cell function and behavior, and the pathophysiology of edema formation. Table of Contents: Fluid Movement Across the Endothelial Barrier / The Interstitium / The Lymphatic Vasculature / Pathophysiology of Edema Formation
Author: Norman C. Staub
Publisher:
ISBN: 9780824763794
Category : Medical
Languages : en
Pages : 592
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Book Description
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: Lindsay Biga
Publisher:
ISBN: 9781955101158
Category :
Languages : en
Pages :
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Book Description
A version of the OpenStax text
Author: J. Gordon Betts
Publisher:
ISBN: 9781947172807
Category :
Languages : en
Pages : 0
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Book Description
Author: Robert W. Wilmott
Publisher: Elsevier Health Sciences
ISBN: 1455740500
Category : Medical
Languages : en
Pages : 1163
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Book Description
Kendig, Chernick’s Disorders of the Respiratory Tract in Children is the definitive medical reference book to help you confront critical challenges using the latest knowledge and techniques. You’ll get the state-of-the-art answers you need to offer the best care to young patients. Tackle the toughest challenges and improve patient outcomes with coverage of all the common and rare respiratory problems found in newborns and children worldwide. Get a solid foundation of knowledge to better understand and treat your patients through coverage of the latest basic science and its relevance to clinical problems. Get comprehensive, authoritative coverage on today’s hot topics, such as interstitial lung disease, respiratory disorders in the newborn, congenital lung disease, swine flu, genetic testing for disease and the human genome, inflammatory cytokines in the lung, new radiologic techniques, diagnostic imaging of the respiratory tract, and pulmonary function tests. Learn from the experts with contributions from 100 world authorities in the fields of pediatrics, pulmonology, neurology, microbiology, cardiology, physiology, diagnostic imaging, anesthesiology, otolaryngology, allergy, and surgery.
Author: David Chambers
Publisher: Cambridge University Press
ISBN: 1108463991
Category : Medical
Languages : en
Pages : 469
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Book Description
Easily understood, up-to-date and clinically relevant, this book provides junior anaesthetists with an essential physiology resource.
Author: Jian-Xin Zhou
Publisher: Springer Nature
ISBN: 9811597707
Category : Medical
Languages : en
Pages : 306
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Book Description
This book covers the up-to-date advancement of respiratory monitoring in ventilation support as well as detecting the physiological responses to therapeutic interventions to avoid complications. Mechanical ventilation nowadays remains the cornerstone in life saving in critically ill patients with and without respiratory failure. However, conclusive evidences show that mechanical ventilation can also cause lung damage, specifically, in terms of ventilator-induced lung injury. Respiratory monitoring encloses a series of physiological and pathophysiological measurements, from basic gas exchange and ventilator wave forms to more sophisticated diaphragm function and lung volume assessments. The progress of respiratory monitoring has always been accompanied by advances in technology. However, how to properly conduct the procedures and correctly interpret the data requires clear definition. The book introduces respiratory monitoring techniques and data analysis, including gas exchange, respiratory mechanics, thoracic imaging, lung volume measurement, and extra-vascular lung water measurement in the initial part. How to interpret the acquired and derived parameters and to illustrate their clinical applications is presented thoroughly. In the following part, the applications of respiratory monitoring in specific diseases and conditions is introduced, including acute respiratory distress syndrome, obstructive pulmonary diseases, patient-ventilator asynchrony, non-invasive ventilation, brain injury with increased intracranial pressure, ventilator-induced diaphragm dysfunction, and weaning from mechanical ventilation. This book is intended primarily for ICU physicians and other practitioners including respiratory therapists, ICU nurses and trainees who come into contact with patients under mechanical ventilation. This book also provides guidance for clinical researchers who take part in respiratory and mechanical ventilation researches.
Author: Matthew D. McEvoy
Publisher: Oxford University Press
ISBN: 0190226471
Category : Medical
Languages : en
Pages : 729
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Book Description
Advanced Perioperative Crisis Management is a high-yield, clinically-relevant resource for understanding the epidemiology, pathophysiology, assessment, and management of a wide variety of perioperative emergencies. Three introductory chapters review a critical thinking approach to the unstable or pulseless patient, crisis resource management principles to improve team performance and the importance of cognitive aids in adhering to guidelines during perioperative crises. The remaining sections cover six major areas of patient instability: cardiac, pulmonary, neurologic, metabolic/endocrine, and toxin-related disorders, and shock states, as well as specific emergencies for obstetrical and pediatric patients. Each chapter opens with a clinical case, followed by a discussion of the relevant evidence. Case-based learning discussion questions, which can be used for self-assessment or in the classroom, round out each chapter. Advanced Perioperative Crisis Management is an ideal resource for trainees, clinicians, and nurses who work in the perioperative arena, from the operating room to the postoperative surgical ward.
Author: Thomas Woodcock
Publisher: Cambridge Scholars Publishing
ISBN: 1527542025
Category : Medical
Languages : en
Pages : 282
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Book Description
This book is essential reading for medical or veterinary practitioners who need to understand the new fluid physiology and to apply it to the safe care of patients. The Starling principle is one of medicine’s most important concepts and originates from Ernest Starling’s laboratory research 120 years ago. However, inappropriate fluid therapy is now recognised as harming and even killing thousands of patients every year. In 2004, a landmark study was published which confirmed the hypotheses put forward by Sheldon Weinbaum and Charles Michel, among other physiologists, that, in most tissues and in most situations, capillaries filter fluid to the interstitium, but do not reabsorb it. This book draws together for the first time the evolving science of the steady-state Starling principle and the clinical evidence that reveals its applicability to safer patient care. It is a thorough re-appraisal of the basics of fluid therapy. The mantra of colloid boluses for plasma volume resuscitation and colloid-free isotonic salt solution for extracellular fluid volume does not explain observations from blinded clinical trials, and the expectation of benefit for resuscitation with colloids, particularly in respect of oedema, has not materialised. Now that there is consensus that colloid volume therapy should not be used in critically-ill patients, there is a pressing need for a new paradigm for fluid therapy. This book proposes an improved paradigm that takes into consideration the Starling principle, which has been neglected by clinicians and revised by physiologists in recent years. It retires the view of colloids as preferred plasma substitutes, and focuses instead on the central volume of distribution of an infused fluid, its rate of distribution to a peripheral volume, and its rate of excretion. In short, it emphasises volume kinetics.
