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1 Cerebral Autoregulation and Blood Pressure Lowering
https://www.ahajournals.org/doi/full/10.1161/HYPERTENSIONAHA.107.087502
Autoregulation maintains cerebral blood flow relatively constant between 50 and 150 mm Hg mean arterial pressure. The range is right shifted in chronically ...
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2 Cerebral Autoregulation in Hypertension and Ischemic Stroke
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5765762/
Cerebral autoregulation (CA) is thought to play a dominant role in CBF homeostasis. The classic description of CA is that CBF is maintained at a constant level ...
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3 Cerebral autoregulation in hypertensive patients: A review
https://www.openaccessjournals.com/articles/cerebral-autoregulation-in-hypertensive-patients-a-review-14801.html
Cerebral Autoregulation (AR) consists of a complex mechanism characterized by the ability of the brain microcirculation to contract and dilate in response to ...
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4 The effects of hypertension on the cerebral circulation
https://journals.physiology.org/doi/10.1152/ajpheart.00490.2012
Hypertension also increases the lower limit of autoregulation, and this can severely impact the outcome of cerebral ischemia and the regulation of cerebral ...
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5 Cerebral Autoregulation - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/medicine-and-dentistry/cerebral-autoregulation
Cerebral autoregulation is the intrinsic ability of the cerebral blood vessels to maintain relatively constant CBF over a range of systemic blood pressures. As ...
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6 Evaluation of cerebral autoregulation performance in patients ...
https://onlinelibrary.wiley.com/doi/full/10.1111/jch.14052
Cerebral autoregulation (AR) keeps cerebral blood flow constant despite fluctuations in systemic arterial pressure.
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7 Cerebral Autoregulation and Acute Ischemic Stroke
https://academic.oup.com/ajh/article/25/9/946/332598
If cerebral autoregulation is impaired the brain becomes more vulnerable to ischemic damage caused by changes in systemic blood pressure or intracranial ...
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8 Dynamic cerebral autoregulation and beat to beat blood ...
https://jnnp.bmj.com/content/72/4/467
Cerebral autoregulation (CA) is the ability of the brain to maintain relatively constant cerebral blood flow (CBF) despite changes in perfusion pressure. Before ...
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9 Autoregulation-Oriented Blood Pressure Management in ...
https://medicine.yale.edu/lab/petersen/research/autoregulation/
Cerebrovascular autoregulation is the brain's intrinsic ability to maintain stable blood flow despite changes in cerebral perfusion pressure.
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10 Does Hypertension Affect Cerebral Blood-Flow Autoregulation?
https://www.jwatch.org/jn200207120000004/2002/07/12/does-hypertension-affect-cerebral-blood-flow
Cerebral autoregulation, the intrinsic ability of the cerebral circulation to maintain a constant blood flow in the face of blood pressure ...
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11 Cerebral autoregulation - OpenAnesthesia
https://www.openanesthesia.org/aba_cerebral_autoregulation/
In patients with chronic systemic hypertension, this range is “right-shifted”, or in other words, the normal range of MAP in which CBF remains constant due to ...
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12 Cerebral Autoregulation in Subarachnoid Hemorrhage
https://www.frontiersin.org/articles/10.3389/fneur.2021.688362/full
In a setting with intact autoregulation, CBF remains constant despite changes in blood pressure and consequently, MCA BFV remains constant; when ...
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13 Assessment of dynamic cerebral autoregulation in humans
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0227651
Data were analyzed from the 2nd CARNet bootstrap initiative, where mean arterial blood pressure (MABP), cerebral blood flow velocity (CBFV) and ...
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14 Dynamic cerebral autoregulation after intracerebral hemorrhage
https://bmcneurol.biomedcentral.com/articles/10.1186/1471-2377-11-108
With impaired cerebral autoregulation, aggressive lowering of blood pressure may lead to undesirable cerebral ischemia; but maintaining high ...
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15 Dynamics of cerebral blood flow autoregulation in ...
https://www.jns-journal.com/article/S0022-510X(02)00010-2/fulltext
In hypertensive patients, the upper and lower limits of cerebral autoregulation are shifted to higher levels. However, the dynamics of cerebral ...
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16 The Effects of Induction and Treatment of Intracranial ...
https://www.hindawi.com/journals/nri/2018/7053932/
Background. This study aimed to analyse cerebral autoregulation (CA) during induction and treatment of intracranial hypertension (ICH) in an experimental model.
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17 Cerebral Autoregulation - SAGE Journals
https://journals.sagepub.com/doi/10.1038/jcbfm.2008.13
Abstract. Cerebral autoregulation (CA) refers to the properties of the brain vascular bed to maintain cerebral perfusion despite changes in blood pressure (BP).
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18 Cerebral Autoregulation-oriented Therapy at the Bedside
https://pubs.asahq.org/anesthesiology/article/126/6/1187/18751/Cerebral-Autoregulation-oriented-Therapy-at-the
When cerebrovascular reactivity is exhausted, cerebral blood flow becomes dependent on systemic arterial blood pressure. Cerebral autoregulation is one aspect ...
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19 Effect of Standard vs Intensive Blood Pressure Control on ...
https://jamanetwork.com/journals/jamaneurology/fullarticle/2673722
It is thought that a diffuse arteriopathy of the cerebral small vessels results in hypoperfusion and impaired cerebral autoregulation, with ...
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20 Cerebral Blood Flow Regulation in Pregnancy, Hypertension ...
https://www.mdpi.com/2076-3425/9/9/224
In preeclampsia, wall thickening does not occur in response to hypertension, which can result in impaired CBF autoregulation, BBB disruption, cerebral edema, ...
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21 Optimal blood pressure during cardiopulmonary bypass ...
https://www.jtcvs.org/article/S0022-5223(17)31228-X/fulltext
The lower and upper limits of cerebral blood flow autoregulation were defined as the mean arterial pressure at which mean velocity index was ...
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22 Cerebral autoregulation - Wikipedia
https://en.wikipedia.org/wiki/Cerebral_autoregulation
Cerebral autoregulation refers to the physiological mechanisms that maintain blood flow at an appropriate level during changes in blood pressure. However, due ...
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23 Cerebral Perfusion Pressure and Cerebral Autoregulation
https://www.youtube.com/watch?v=MpcE6RbMwLg
Count Backwards From 10
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24 Question 5 of 23 - AccessEmergency Medicine
https://accessemergencymedicine.mhmedical.com/Sol/SolQuestion?solQuizId=3791&solQuestionId=4
Hypertension accompanied by end-organ dysfunction defines a hypertensive emergency. Cerebral autoregulation (constant cerebral blood flow over a spectrum of ...
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25 Cerebral macro- and microcirculatory blood flow dynamics in ...
https://www.nature.com/articles/s41598-020-66317-x
The mechanisms of high blood pressure (HBP) -related brain pathology progression remain relatively unclear. We investigated whether lowering ...
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26 Individual Blood Pressure Optimization Based on Cerebral ...
https://clinicaltrials.gov/ct2/show/NCT03093012
Individual optimal blood pressure change between before and after continuous-flow LVAD implantation determined by cerebral autoregulation monitoring with ...
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27 Cerebral autoregulation in different hypertensive disorders of ...
https://www.ajog.org/article/S0002-9378(14)02202-9/fulltext
The autoregulatory index (ARI) was calculated with the use of simultaneously recorded cerebral blood flow velocity in the middle cerebral artery ...
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28 Improvement of exhausted cerebral autoregulation in patients ...
https://iopscience.iop.org/article/10.1088/1361-6579/ac172c/meta
Objective. To evaluate the cerebral autoregulation (CA) in idiopathic intracranial hypertension (IIH) patients with transfer function analysis, and to explore ...
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29 Cerebral pressure autoregulation in traumatic brain injury in
https://thejns.org/focus/view/journals/neurosurg-focus/25/4/article-pE7.xml
Pressure autoregulation is the most common approach in testing the effects of mean arterial blood pressure on cerebral blood flow.
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30 Intensive Blood Pressure Control May Augment Cerebral ...
https://www.reliasmedia.com/articles/intensive-blood-pressure-control-may-augment-cerebral-blood-flow-no-issue
Results of the Systolic Blood Pressure Intervention Trial (SPRINT) suggest intensive hypertension treatment produces cardiovascular health ...
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31 Adverse Effects of Aggressive Blood Pressure Control in ...
https://www.e-jnc.org/upload/pdf/jnc-160102.pdf
hemorrhage (ICH) is focused on blood pressure (BP) management. ... Conclusions: Hypertensive individuals have altered cerebral autoregulation curves shifted.
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32 Effects of antihypertensive treatment on cerebral perfusion
https://www.amjmed.com/article/0002-9343(87)90208-7/fulltext
Antihypertensive treatment reduces the risk of ischemic strokes and cerebral hemorrhage as complications of excessive or longstanding hypertension.
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33 cerebral blood flow autoregulation following carotid artery ...
https://journals.lww.com/jhypertension/_layouts/15/oaks.journals/downloadpdf.aspx?an=00004872-200402001-00026
Antihypertensive treatment in acute cerebral ischemia is controversial, in general the blood pressure lowering in acute stage of ischemic stroke seems to ...
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34 Reliability of dynamic cerebral autoregulation measurement ...
https://portlandpress.com/clinsci/article/116/6/513/68652/Reliability-of-dynamic-cerebral-autoregulation
Cerebral autoregulation is the mechanism(s) by which constant cerebral blood flow can be maintained despite changes in cerebral perfusion ...
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35 Impaired Cerebral Autoregulation and Vasomotor Reactivity in ...
https://www.eurekaselect.com/118162/article
Cerebral autoregulation was assessed during changes in blood pressure induced by single and repeated sit-stand maneuvers. Cerebral vasomotor reactivity was ...
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36 Autoregulation of Cerebral Blood Flow in Young and Aged ...
https://www.karger.com/article/Abstract/212604
Autoregulation of cerebral blood flow (CBF) to the controlled hemorrhagic hypotension was studied in young adult spontaneously hypertensive rats (SHR, ...
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37 Autoregulation of Brain Circulation in Severe Arterial - jstor
https://www.jstor.org/stable/25424762
When the blood pressure is increased the cerebral blood flow ... autoregulation in patients with arterial hypertension and in normotensive controls.
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38 Head-up and body positioning might impair dynamic cerebral ...
http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&pid=S2631-25812018000100011
Cerebral autoregulation (CA) is the ability of intracranial vessels to maintain a constant cerebral blood flow (CBF) during changes of cerebral perfusion ...
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39 The influence of intracranial hypertension on static cerebral ...
https://www.tandfonline.com/doi/pdf/10.1080/02699052.2020.1797166
Adequate cerebral blood flow (CBF) is essential for cerebral substrates to produce energy (1). Cerebral autoregulation (CA) is an important ...
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40 Why is the neural control of cerebral autoregulation so ...
https://facultyopinions.com/prime/reports/b/6/14
Cerebral autoregulation refers to the mechanisms that act to keep cerebral blood flow (CBF) constant during changes in blood pressure.
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41 Cerebral autoregulation (Chapter 17)
https://www.cambridge.org/core/books/manual-of-neurosonology/cerebral-autoregulation/107F48830FC01504CB7C3887610E05D9
Cerebral autoregulation (CA) is regarded as the capability of the cerebral blood vessels to maintain constant cerebral blood flow (CBF) despite the changes ...
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42 Intensive BP Control Linked to Increase in Cerebral Blood Flow
https://www.medscape.com/viewarticle/970337
Intensive blood pressure control to a target of less than 120 mm Hg was not associated with a reduction of cerebral perfusion compared with ...
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43 and Long-Term Reduction in Blood Pressure in Mild and ...
https://scholarworks.smith.edu/cgi/viewcontent.cgi?article=1037&context=ess_facpubs
Cerebral blood flow velocity and BP were measured in patients with mild and moderate ... autoregulation are compromised in patients with hypertension.
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44 Multimodal Pressure-Flow Method to Assess Dynamics of ...
https://dash.harvard.edu/handle/1/4728749
Background: This study evaluated the effects of stroke on regulation of cerebral blood flow in response to fluctuations in systemic blood pressure (BP). The ...
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45 Lower Limit of Cerebral Autoregulation Questioned
https://www.apsf.org/article/lower-limit-of-cerebral-autoregulation-questioned/
Strandgaard S. Autoregulation of cerebral blood flow in hypertensive patients. The modifying influence of prolonged antihypertensive treatment on the tolerance ...
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46 relationship with cerebral blood flow - Stanford Ether
https://ether.stanford.edu/library/neuroanesthesia/SNACC%20Reading%20List%20articles/Bouma_Blood%20pressure%20and%20intracranial%20pressure%20volume.pdf
When autoregulation was defective,. ICP varied directly with blood pressure. Accordingly, with intact autoregulation, a weak positive correlation between PVI ...
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47 Evaluation of cerebral autoregulation performance in ... - X-MOL
https://www.x-mol.com/paper/oa/url?paperId=1308864024849649664&host=onlinelibrary.wiley.com&type=PDF
with arterial hypertension on drug treatment ... Cerebral autoregulation (AR) keeps cerebral blood flow constant despite fluctuations.
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48 Comparison of the Autoregulatory Mechanisms ... - IOVS
https://iovs.arvojournals.org/article.aspx?articleid=2124324
To compare dynamic autoregulation in the middle cerebral artery (MCA) and the ophthalmic artery (OA) after a step decrease in systemic blood pressure.
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49 Physiology, Cerebral Autoregulation Article - StatPearls
https://www.statpearls.com/ArticleLibrary/viewarticle/83781
[2] Cerebral perfusion pressure (CPP = MAP – ICP) may be substituted for arterial blood pressure as well. Each index enlists a unique threshold ...
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50 (PDF) Cerebral autoregulation - ResearchGate
https://www.researchgate.net/publication/20955407_Cerebral_autoregulation
During phase IV of the VM there are pronounced changes in mean arterial blood pressure (MABP), pulse interval, and cerebral blood flow (CBF), ...
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51 Autoregulation of Organ Blood Flow
https://www.cvphysiology.com/Blood%20Flow/BF004
Autoregulation is a manifestation of local blood flow regulation. It is defined as the intrinsic ability of an organ to maintain a constant blood flow ...
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52 BP in Stroke - Case Western Reserve University
http://syllabus.cwru.edu/YearThree/neuroscience/NeurLrngObjectives/BP%20in%20Stroke.htm
In order to understand the rationale behind blood pressure management in stroke, it is important to review the concept of auto-regulation. Auto-regulation is a ...
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53 MedChiefs no Twitter: "#AMReport:hypertensive ...
https://twitter.com/medchiefs/status/429008830433751041?lang=gl
#AMReport:hypertensive encephalopathy occurs when cerebral autoregulation fails; can cause AMS. #hypertension #UCIMR. Traducir chío.
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54 Cerebral Autoregulation - RK.md
https://rk.md/2018/cerebral-autoregulation/
This autoregulation is largely driven by chemical mediators to “couple” metabolic demand with blood supply. In other words, if the organ demands ...
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55 Factors affecting cerebral blood flow - Clinical Gate
https://clinicalgate.com/factors-affecting-cerebral-blood-flow/
In hypertensive patients, the autoregulatory curve is shifted to the right (Figure 42-2). A hypertensive patient may be at risk for developing ...
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56 Vasopressor agents are prescribed for which types of shock ...
https://thatim.com/vasopressor-agents-are-prescribed-for-which-types-of-shock-select-all-that-apply
Increasing arterial blood pressure (ABP) with vasopressors when ... although cerebral, hepatosplanchnic and renal autoregulation may be ...
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57 Cerebral Herniation Syndromes and Intracranial Hypertension
https://books.google.com/books?id=vqDMDAAAQBAJ&pg=PA193&lpg=PA193&dq=hypertension+cerebral+autoregulation&source=bl&ots=4ZuoQixa8Y&sig=ACfU3U3rrGrk6_5anXAWo8YIAFeLyYFeZA&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjcARAD
Cerebral autoregulation is the ability of the brain to regulate the amount of CBF across different blood pressures, or the mean arterial blood pressure ...
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58 Anatomy and Physiology of the Circulatory and Ventilatory ...
https://books.google.com/books?id=XdM-AgAAQBAJ&pg=PA257&lpg=PA257&dq=hypertension+cerebral+autoregulation&source=bl&ots=JMTiBBexYE&sig=ACfU3U2T_puda1T4Uv5TajIM231_QTqnnQ&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjfARAD
Chronic hypertension shifts upper and lower limits of autoregulation toward higher values [141]. Cerebral blood flow is maintained despite gradual, ...
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59 Report of the Hypertension Task Force: Current research and ...
https://books.google.com/books?id=DhQr1-AqYEAC&pg=PA106&lpg=PA106&dq=hypertension+cerebral+autoregulation&source=bl&ots=MFS3EQjf04&sig=ACfU3U3TXQ_Po462MIDVvCVFg4SViMByAA&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjIARAD
The role of the sympathetic nervous system in elevating the limits of cerebral autoregulation in chronic hypertension should be investigated .
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60 ECAB Reviews in Neurology 2013 - E-Book - Google Books Result
https://books.google.com/books?id=t-W4BwAAQBAJ&pg=PT58&lpg=PT58&dq=hypertension+cerebral+autoregulation&source=bl&ots=9VpVkn9HyR&sig=ACfU3U2v5HaD1rD-q5BlzS5cVhYnx7_z2w&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjNARAD
PATHOPHYSIOLOGY Pathogenesis of this rare syndrome can be described under 3 headings-impaired cerebral autoregulation, postoperative hypertension and ...
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61 Oxford Textbook of Neurocritical Care - Page 110 - Google Books Result
https://books.google.com/books?id=RiWQDwAAQBAJ&pg=PA110&lpg=PA110&dq=hypertension+cerebral+autoregulation&source=bl&ots=xRq34r1E18&sig=ACfU3U0IW2lSLSsLp4Rgz3WH929wrjlU5w&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjeARAD
Cerebral ◇ autoregulation status can affect PVI estimation despite a normal ... A potential way of improving the detection of intracranial hypertension is ...
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62 Brain Edema XI: Proceedings of the 11th International ...
https://books.google.com/books?id=KaIyBwAAQBAJ&pg=PA481&lpg=PA481&dq=hypertension+cerebral+autoregulation&source=bl&ots=UU5myc5KNp&sig=ACfU3U2txQk0f_O0eThNzvB2vGxJ43qfCQ&hl=en&sa=X&ved=2ahUKEwja0_bA_uP7AhV3XqQEHR8gAvcQ6AF6BQjdARAD
Ninety-five episodes of provoked hypertension were studied in 46 patients. ... Keywords: Cerebral autoregulation. perfusion pressure; head injury; ...
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