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pressure ulcer/hypoxia
L'enllaç es desa al porta-retalls
Pàgina 1 des de 65 resultats
Evaluation of lung infiltration score to predict postural hypoxemia in ventilated acute respiratory distress syndrome patients and the lateralization of skin pressure sore.
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BACKGROUND
Mechanical ventilation with positive end expiratory pressure (PEEP) is associated with unequal aeration of lungs in acute respiratory distress syndrome (ARDS) patients. Therefore, patients may develop asymmetric atelectasis and postural hypoxemia during lateral positioning.
OBJECTIVE
To
Hypoxia-Inducible Factor-1α Gene Expression and Apoptosis in Ischemia-Reperfusion Injury: A Rat Model of Early-Stage Pressure Ulcer.
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BACKGROUND
Pressure ulcer (PU) is a significant and complicated health problem. Although ischemia-reperfusion (I/R) injury has been identified as the primary mechanism in the early stage of pressure ulceration, the cellular and molecular events contributing to I/R injury of PU development are
Linking microvascular collapse to tissue hypoxia in a multiscale model of pressure ulcer initiation.
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Pressure ulcers are devastating injuries that disproportionately affect the older adult population. The initiating factor of pressure ulcers is local ischemia, or lack of perfusion at the microvascular level, following tissue compression against bony prominences. In turn, lack of blood flow leads to
[Immunomorphologic characteristics of bedsores].
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Biopsies and blood of 36 patients with bedsores developing due to spinal cord trauma were studied. Pronounced alterations in the blood content of IgA, IgM, IgG, a significant increase in circulating immune complexes (CIC) content and a decrease of neutrophil leukocyte chemotactic activity were
Effects of Noninvasive Positive-Pressure Ventilation with Different Interfaces in Patients with Hypoxemia after Surgery for Stanford Type A Aortic Dissection.
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BACKGROUND
Hypoxemia is a severe perioperative complication that can substantially increase intensive care unit and hospital stay and mortality. The aim of this study was to determine the effects of non-invasive positive-pressure ventilation (NIPPV) in patients with hypoxemia after surgery for
Deferoxamine can prevent pressure ulcers and accelerate healing in aged mice.
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Chronic wounds are a significant medical and economic problem worldwide. Individuals over the age of 65 are particularly vulnerable to pressure ulcers and impaired wound healing. With this demographic growing rapidly, there is a need for effective treatments. We have previously demonstrated that
Characteristics of hospitalised US veterans with nosocomial pressure ulcers.
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The objective of this study was to describe demographic and clinical characteristics of hospitalised US veterans with nosocomial pressure ulcer (NPU) referred to a certified Wound, Ostomy & Continence Nurse (WOCN). We conducted a retrospective review of electronic records at a Veterans Affairs
The relative contributions of compression and hypoxia to development of muscle tissue damage: an in vitro study.
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Deep pressure ulcers develop in tissues subjected to sustained mechanical loading. Though it has been hypothesized that this damage mechanism results from local tissue ischemia, it has recently been shown with a cell model that sustained compression can cause cell deformation, leading to tissue
Assessing Specimens of Devitalized Tissue in Chronic Sacral Pressure Ulcers: A Pilot Study.
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Pressure ulcers (PrUs)* are chronic wounds caused by a combination of factors, such as repetitive ischemia perfusion injury, bacterial colonization of the wound bed, local tissue hypoxia, or an altered cellular and systemic stress response. The objectives of this study were to analyze fragments of
Enhancing host resistance to pressure ulcers: a new approach to prevention.
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Pressure ulcers are notoriously common in spinal-cord-injured patients, in patients with other neurological deficits, in malnourished and severely debilitated patients, and in the frail elderly. Prolonged localized external pressure, coupled with insensitivity to ischemia resulting from neurologic
Adipose Tissue Drives Response to Ischemia-Reperfusion Injury in a Murine Pressure Sore Model.
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BACKGROUND
Ischemia-reperfusion injury contributes significantly to the pathogenesis of chronic wounds such as pressure sores and diabetic foot ulcers. The authors' laboratory has previously developed a cyclical murine ischemia-reperfusion injury model. The authors here use this model to determine
Histopathology of the decubitus ulcer.
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The histologic studies of the decubitus ulcer spectrum, which include blanchable erythema, nonblanchable erythema, decubitus dermatitis, decubitus ulcer, and the black eschar/gangrene reveal a dynamic process. The initial change occurs in the vessels of the papillary dermis. This is followed by
Hypoxia is Involved in Deep Tissue Injury Formation in a Rat Model .
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Abstract: Pressure ulcers that develop from deep tissue are known as deep tissue injuries (DTI). Although several mechanisms, including ischemic hypoxia, are attributed to pressure ulcer formation, the mechanisms involved in DTI formation are still unclear. Previous studies have suggested that
The relationship between common risk factors and the pathology of pressure ulcer development: a systematic review.
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A non-invasive method to produce pressure ulcers of varying severity in a spinal cord-injured rat model.
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METHODS
Experimental study.
OBJECTIVE
The objective of this study was to establish a non-invasive model to produce pressure ulcers of varying severity in animals with spinal cord injury (SCI).
METHODS
The study was conducted at the Johns Hopkins Hospital in Baltimore, Maryland, USA.
METHODS
A
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