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Autoregulation in the Neuro ICU
Current Treatment Options in Neurology, 2018The purpose of this review is to briefly describe the concept of cerebral autoregulation, to detail several bedside techniques for measuring and assessing autoregulation, and to outline the impact of impaired autoregulation on clinical and functional outcomes in acute brain injury.
Anson Wang +2 more
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Cerebral Autoregulation and Syncope
Progress in Cardiovascular Diseases, 2007Whatever the pathogenesis of syncope is, the ultimate common cause leading to loss of consciousness is insufficient cerebral perfusion with a critical reduction of blood flow to the reticular activating system. Brain circulation has an autoregulation system that keeps cerebral blood flow constant over a wide range of systemic blood pressures. Normally,
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RENIN AND RENAL AUTOREGULATION
The Lancet, 1968Abstract A renin/renal-autoregulation hypothesis is proposed and supported by the evidence gained by some of the foremost workers in the field. I depends on an increased sodium concentration in the lumen of the early distal tubule activating a sodium-dependent carrier to transport renin from the granules of the juxtaglomerular apparatus into the ...
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Cerebral autoregulation and ageing
Journal of Clinical Neuroscience, 2005Little is known about the effects of ageing on cerebral autoregulation (CA). To examine the relationship between age and CA in adults, we conducted a prospective study using a non-invasive protocol without external stimuli. We studied 32 subjects, aged 23-68 years. They were assigned to a young group (28+/-5 years) and an old group (54+/-8 years).
Yam, A T +6 more
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Cerebral autoregulation and anesthesia
Current Opinion in Anaesthesiology, 2009This review will examine the recent literature on anesthesia and monitoring techniques in relation to cerebral autoregulation. We will discuss the effect of physiologic and pharmacological factors on cerebral autoregulation alongside its clinical relevance with the help of new evidence.Intravenous anesthesia, such as combination of propofol and ...
Arthur M. Lam, Armagan Dagal
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Cerebral Autoregulation in Stroke
Current Atherosclerosis Reports, 2018Cerebral autoregulation (CA) is a mechanism that maintains cerebral blood flow constant despite fluctuations in systemic arterial blood pressure. This review will focus on recent studies that measured CA non-invasively in acute cerebrovascular events, a feature unique to the transcranial Doppler ultrasound.
Elsa Azevedo +2 more
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Captopril and Renal Autoregulation
New England Journal of Medicine, 1983Renal autoregulation of blood flow and glomerular filtration tends to be regarded by both the busy clinician and the struggling student as one of those arcane phenomena that must be important in th...
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Autoregulation of the coronary circulation
Progress in Cardiovascular Diseases, 1987Coronary autoregulation appears to be closely coupled to myocardial oxidative metabolism. Recent data suggest that coronary autoregulation depends on the prevailing balance between myocardial oxygen supply and demand. It seems likely that pO2 within a critical range may be the initial metabolic stimulus for coronary autoregulation.
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Cerebrovascular and brain metabolism reviews, 1990
Autoregulation of blood flow denotes the intrinsic ability of an organ or a vascular bed to maintain a constant perfusion in the face of blood pressure changes. Alternatively, autoregulation can be defined in terms of vascular resistance changes or simply arteriolar caliber changes as blood pressure or perfusion pressure varies.
Paulson, O B +2 more
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Autoregulation of blood flow denotes the intrinsic ability of an organ or a vascular bed to maintain a constant perfusion in the face of blood pressure changes. Alternatively, autoregulation can be defined in terms of vascular resistance changes or simply arteriolar caliber changes as blood pressure or perfusion pressure varies.
Paulson, O B +2 more
openaire +1 more source