Results 291 to 300 of about 9,465,006 (361)
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[Intracranial pressure--volumetric pressure and driving pressure].
No to shinkei = Brain and nerve, 1977In order to understand the pathogenesis of increased intracranial pressure, the concept of the driving pressure (DP) from the intracranial vascular system was proposed. The DP consists of the transmission of atrial pressure (ADP) and venous pressure (vp).
A, Ikeyama, S, Maeda, H, Nagai
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The relationship of intraocular pressure to intracranial pressure
Annals of Emergency Medicine, 2004The early detection of intracranial hypertension can lead to timely medical and neurosurgical intervention, preventing brain herniation and death. In this investigation, we hypothesize that an increase in intracranial pressure can be detected by an increase in intraocular pressure using noninvasive existing technology, the handheld tonometer.This was a
Matthew K, Lashutka +4 more
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Journal of Tissue Viability, 1976
The primary cause of pressure sores is the interference with the blood supply of the tissues which, if prolonged, will result in their death. In most cases, the prolonged pressure which occludes vessels is caused by the inability of the patient to feel pain and/or move.
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The primary cause of pressure sores is the interference with the blood supply of the tissues which, if prolonged, will result in their death. In most cases, the prolonged pressure which occludes vessels is caused by the inability of the patient to feel pain and/or move.
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Pressure Ulcers and Pressure Relief Surfaces
Clinics in Plastic Surgery, 1998Pressure ulcer incidence has been reduced but not eliminated. A few patients still develop pressure ulcers despite using air-fluidized beds and other specialty beds. In the future, very high-risk patients may possibly be sent to space clinics to recuperate in zero gravity for extended periods.
B, Klitzman +3 more
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Estimation of Subglottal Pressure with Intraoral Pressure
Acta Oto-Laryngologica, 1990A method of estimating subglottal pressure through intraoral pressure has been reported in the literature. In order to determine its clinical usefulness, however, the method should be tested against direct measurements made on subjects with pathologic larynges.
K, Kitajima, F, Fujita
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1972
Pressure may be defined as force acting against a given area. Basically there exist two types of units for measuring pressure. Pressure may be expressed as weight per unit area or as the height of a liquid column. The first alternative clearly adheres to the definition according to which a weight (force) acts against a certain area.
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Pressure may be defined as force acting against a given area. Basically there exist two types of units for measuring pressure. Pressure may be expressed as weight per unit area or as the height of a liquid column. The first alternative clearly adheres to the definition according to which a weight (force) acts against a certain area.
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Pressure to measure pressure: the McLean Tonometer
British Journal of Ophthalmology, 2009Albrecht von Graefe’s invention of the surgical iridectomy procedure for the treatment of glaucoma in 1857 was his impetus to design an instrument to measure the eye pressure so that he could record pressures before and after iridectomy. He also constructed a campimeter for plotting the visual field.
Richard, Keeler +2 more
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Ultrasonic pressure measurement in pressure vessels
Review of Scientific Instruments, 2014Based on the reflected longitudinal wave, a new non-intrusive method for pressure measurement is proposed. The acoustoelastic theory and the thin-shell theory are introduced to develop the pressure measurement model in cylindrical pressure vessels. And a pressure measurement system is constructed to evaluate the effectiveness of the proposed method ...
Yao, Bi +4 more
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Pressure measurement: Electrical pressure transducers
Progress in Cardiovascular Diseases, 1963Summary The principles of intravascular pressure detection and recording have been discussed. Accuracy of recording depends upon the dynamic response characteristics (frequency response and sensitivity), and the stability of the transducer system, as well as the response characteristics of the amplifier and recorder.
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Optimal Pressure Waveforms for Pressure-Limited Ventilation
Mathematical Medicine and Biology, 1987In this paper, we find the pressure waveform that minimizes the work of distending the alveoli in the lungs while achieving the desired mean airway pressure and alveolar tidal volume. The model used takes into account the compliance of the airway.
Boyarsky, Abraham, Senez, John
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