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*  Validation of Computed Tomographic Middle Cerebral Artery "Dot" Sign | Stroke
Schuierer G, Huk W. The unilateral hyperdense middle cerebral artery: an early CT sign of embolism or thrombosis. ... Koo CK, Teasdale E, Muir K. What constitutes a true hyperdense middle cerebral artery sign? Cerebrovasc Dis. 2000; 10: 419-423. ... Tomsick TA, Brott TG, Olinger CP, Barsan W, Spilker J, Eberle R, Adams H. Hyperdense middle cerebral artery: incidence and ... Leys D, Pruvo JP, Godefroy O, Rondepierre P, Leclerc X. Prevalence and significance of hyperdense middle cerebral artery in ...
  http://stroke.ahajournals.org/content/34/11/2636
*  Dense artery sign - Wikipedia
Koo CK, Teasdale E, Muir KW (2000). "What constitutes a true hyperdense middle cerebral artery sign?". Cerebrovasc. Dis. 10 (6 ... and dense basilar artery sign, respectively. Rarely, a hypodense artery sign can occur due to fat embolism. Through cerebral ... The sign has been observed in the middle cerebral artery (MCA), posterior cerebral artery (PCA), vertebral artery, and basilar ... Launes J, Ketonen L (November 1987). "Dense middle cerebral artery sign: an indicator of poor outcome in middle cerebral artery ...
  https://en.wikipedia.org/wiki/Dense_artery_sign
*  Frontiers | Intracerebral Hemorrhage after Intravenous Thrombolysis in Patients with Cerebral Microbleeds and Cardiac Myxoma |...
The presumptive diagnosis of acute left middle cerebral artery infarction was made. Previous MRI showed multiple cerebral ... The presumptive diagnosis of acute left middle cerebral artery infarction was made. Previous MRI showed multiple cerebral ... Both cerebral microbleeds and cardiac myxoma may increase the risk of intracerebral hemorrhage after intravenous thrombolysis. ... Conclusion: Cerebral microbleeds may be associated with atrial myxoma. Intravenous thrombolysis could benefit acute ischemic ...
  https://www.frontiersin.org/articles/10.3389/fneur.2014.00252/full
*  Dr. Smith's ECG Blog: August 2016
There is a hyperdense MCA sign in the left Middle Cerebral Artery [radiodenseity (white) in upper right part of brain]. ... and subsequent embolism with large middle cerebral artery ischemic stroke. And that entire diagnosis could be gleaned from the ... CT angiogram stroke protocol revealed thrombus in the right internal carotid artery and middle cerebral artery. The patient ... Hyperdense MCA sign is seen more commonly in cerebral embolism (though most embolism is from atrial fibrillation) than in ...
  http://hqmeded-ecg.blogspot.ca/2016/08/
*  Arteriopatia progressiva com dilatações e estenoses: relato de caso
Fusiform middle cerebral artery aneurysms. J Neurosurg 2003;99:215-217. [ Links ]. 6. Horie N, Takahashi N, Furuichi S, et al. ... The latter is more commonly caused by thrombosis of small collateral branches or embolism to distal arteries3,9. Complete ... Cranial computed tomography (CT) revealed a round, hyperdense structure situated anteriorly to the brain stem. The ... Spontaneous fusiform middle cerebral artery aneurysms: characteristics and a proposed mechanism of formation. J Neurosurg 2003; ...
  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-282X2004000500033&lng=pt&nrm=iso
*  Emergency Radiology: Case Review Series, Book by Stuart E. Mirvis (Paperback) | chapters.indigo.ca
136 Nohemorrhagic right middle cerebral artery infarct. 137 Acute disc herniation. 138 Bennett's Fracture. 139 Scaphoid ... 57 Pulmonary Embolism and Lower Extremity Deep Venous Thrombosis. 58 Ruptured Cerebral Aneurysm. 59 Superficial Soft Tissue ... 13 Hyperdense MCA Sign. 14 Left hemidiaphragm rupture and gastric herniation into thorax. 15 Rupture of the right hemidiaphragm ... 176 Blunt Internal Carotid Artery Injury. 177 Spontaneous Internal Carotid Artery Dissection. 178 Spontaneous Celiac Artery ...
  https://www.chapters.indigo.ca/en-ca/books/emergency-radiology-case-review-series/9780323049573-item.html
*  Protected stent retriever thrombectomy prevents iatrogenic emboli in new vascular territories | SpringerLink
... the middle cerebral artery embolism local fibrinolytic intervention trial (MELT) Japan. Stroke 38:2633-2639CrossRefPubMedGoogle ... Comparison of intraarterial and intravenous thrombolysis for ischemic stroke with hyperdense middle cerebral artery sign. ... All patients had anterior circulation strokes due to tandem occlusions of the internal carotid artery (ICA) and middle cerebral ... following the direction of branches of the middle, anterior, or posterior cerebral arteries (Figs. 1, 2, and 3). Emboli were ...
  https://link.springer.com/article/10.1007%2Fs00234-015-1583-8
*  Cerebrovascular Disease - Radiology Notes
Vascular occlusion may be seen as hyperdense artery sign on CT (can see most of the time when slice thickness ,2.5mm), or lack ... Superior cerebellar artery (SCA) - Superior vermis, middle and superior cerebellar peduncles, superolateral hemispheres. Most ... Cerebral blood flow is volume of blood moving through given volume of brain per unit time (mL/100g/min). Calculated by CBF = ... May be diffuse (hypoxic-ischaemic), multifocal (vasculitis, emboli) or focal (single embolism or thrombus). Anterior ...
  http://radnotes.co.nz/neuroimaging/cerebrovascular_disease/
*  Radiology Ischemia Flashcards by Sue Liu | Brainscape
in hyper acute ischemic stroke, brian may be normal but might see hyper dense clot in artery: dense MCA sign, basilar sign. ... cerebral autosomal dom arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) most common hereditary stroke ...
  https://www.brainscape.com/flashcards/radiology-ischemia-3591522/packs/5491377
*  Basilar Artery Thrombosis Medication: Antihypertensive agents, Thrombolytics, Anticoagulant Agents, Antiplatelet Agents,...
Acute basilar artery thrombosis is associated with a poor prognosis. However, the advent of high-quality, reliable, and ... The distribution and density of reduced cerebral blood flow following acute middle cerebral artery occlusion: an experimental ... Hyperdense basilar artery. An early computed tomography sign of thrombosis. J Neuroimaging. 1994 Oct. 4(4):200-5. [Medline]. ... The rationale for the use of these agents is to prevent recurrent embolism or extension of the thrombosis. ...
  https://emedicine.medscape.com/article/1161044-medication
*  Giant Cerebral Hydatid Cyst in a Child- A Case Report and Review of Literature | British Journal of Medical Practitioners
5 Cysts mostly involve the territory of the middle cerebral artery4,7 but other regions like intraventricular, posterior fossa ... Turgut M, Benli K, Eryilmaz M. Secondary multiple intracranial hydatid cysts caused by intracerebral embolism of cardiac ... 32The wall may appear iso-dense to hyper-dense on CT scan3,8, and rarely, may become calcified.11,29,32 There is usually no ... Giant Cerebral Hydatid Cyst in a Child- A Case Report and Review of Literature. ...
  http://www.bjmp.org/content/giant-cerebral-hydatid-cyst-child-case-report-and-review-literature
*  Neuroimaging of acute ischemic stroke
Prevalence and significance of hyperdense middle cerebral artery in acute stroke. Stroke 1992; 23:317. ... Silent embolism in diagnostic cerebral angiography and neurointerventional procedures: a prospective study. Lancet 1999; 354: ... Microembolic signal predicts recurrent cerebral ischemic events in acute stroke patients with middle cerebral artery stenosis. ... Middle cerebral artery territory infarction and early brain swelling: progression and effect of age on outcome. Mayo Clin Proc ...
  https://www.uptodate.com/contents/neuroimaging-of-acute-ischemic-stroke
*  Stroke | eNetMD
... in the cerebral hemispheres infarcts can be located in the supply areas of anterior cerebral artery, middle cerebral artery, or ... typically by embolism from a source in the carotid artery, aorta, or heart. Whether occlusion of an artery supplying brain ... In addition, CT will often provide evidence of the underlying sinus thrombosis: the hyperdense sinus sign or, less reliable, ... and sometimes of the posterior cerebral artery or contralateral anterior cerebral artery as well), depending on the presence of ...
  http://www.enetmd.com/content/stroke
*  AIIMS nov07 Q & A with explanation | AIPPG Forum
a. Pulmonary artery b. Pulmonary vein c. Bronchus d. Bronchial artery ANS-a. Pulmonary artery The root of each lung is a short ... Que.129 cerebral metabolic rate is increased in 1) propofol 2) ketamine 3) fluranes 4) 130.vaccine CI in seizures 1.DPT 2. ... 1.Pulmonary embolism 2.Aspergillosis 3.Tuberculosis 4.Bronchogenic Ca Transparency of cornea is not caused by? 1.hydration 2. ... had symptoms of mucopurilent discharge in middle meatus. Next best step 1) Non contrast CT nose 2) X ray maxillary sinus 3) MRI ...
  http://aippg.net/threads/aiims-nov07-q-a-with-explanation.42312/
*  A Case Report of Atrial Myxoma presenting with Cardioembolic Stroke and treated with Intravenous Thrombolytic Therapy | Journal...
... left atrial myxoma and presenting with sudden onset of ischemic cardioembolic stroke of the right middle cerebral artery within ... 2012) Cerebral Embolism Associated with Left Atrial Myxoma That Was Treated with Thrombolytic Therapy. Case Reports in ... Hyperdense MCA, left UMN facial palsy, TIAs, intravenous recombinant tissue plasminogen activator, IV rtPA, leptomeningeal ... discovered left atrial myxoma presenting with sudden onset of ischemic cardioembolic stroke of the right middle cerebral artery ...
  http://www.annexpublishers.co/full-text/JCRS/2-505/A-Case-Reportof-Atrial-Myxoma-presenting-with-Cardioembolic-Stroke-and-treated-with-Intravenous-Thrombolytic-Therapy.php
*  Neuroradiology On the Net: marzo 2009
... spaces are hyperdense especially in the suprasellar region representing pseudosubarchnoid hemorrhage associated with cerebral ... Closed middle ear cavity by a thick, osseous atretic plate.. + Closed oval window.. Hypoplasia or aplasia of the mastoid air ... It is supplied by the labyrinthine artery, a branch of AICA. Its tortuous course predisposes it to the effects of ... embolism or hypotension. This patient should be evaluated for an underlying leukemia.. Imaging can be used as an adjunct in ...
  http://neuroradiologyonthenet.blogspot.com/2009_03_01_archive.html
*  Traumatic Brain Injury - Injuries; Poisoning - Merck Manuals Professional Edition
Temporal bone fractures that cross the area of the middle meningeal artery: In these fractures, an epidural hematoma is a risk. ... Cerebral blood flow is proportional to the cerebral perfusion pressure (CPP), which is the difference between mean arterial ... or nondiagnostic CT due to suspected evolving ischemia secondary to vascular thrombosis or embolism due to a carotid artery ... CT: Hypodensity in subdural space (abnormality is isodense during subacute transition from hyperdense to hypodense) ...
  http://www.merckmanuals.com/professional/injuries-poisoning/traumatic-brain-injury-tbi/traumatic-brain-injury
*  Extradural haemorrhage (summary) | Radiology Reference Article | Radiopaedia.org
middle meningeal artery is particularly at risk. * investigation*CT head (non-contrast) is quick, easy and readily available ... peripheral hyperdense biconvex extra-axial collection*looking like a lens (lentiform) or egg ("eggs"-tradural) ... cerebral oedema. *intracranial haemorrhage. *extra-axial collection. *conditions *extradural haemorrhage. *subdural haemorrhage ...
  https://radiopaedia.org/articles/extradural-haemorrhage-summary
*  ArticlesSection: PathologySystem: Central Nervous System | Radiopaedia.org
Cerebral fat embolism (CFE) is one of a manifestations of fat embolism syndrome. Epidemiology It typically occurs in patients ... Basilar artery hypoplasia is a rare vascular anomaly of the basilar artery. Pathology Associations Basilar artery hypoplasia is ... They are usually characterised on CT as hyperdense foci in the frontal lobes adjacent to the floor of the anterior cranial ... Dehiscent jugular bulbs are present when the sigmoid plate between a high riding jugular bulb and the middle ear is absent, ...
  https://radiopaedia.org/encyclopaedia/pathology/central-nervous-system?page=1
*  Dynamics of middle cerebral artery blood flow velocity during moderate intensity exercise
Sandra A. Billinger, Jesse C. Craig, Sarah J. Kwapiszeski, Jason-Flor V. Sisante, Eric D. Vidoni, Rebecca Maletsky, and David C. Poole Dynamics of middle cerebral artery blood flow velocity during moderate intensity exercise J Appl Physiol 122: 1125-1133, 2017; DOI: 10.1152/japplphysiol.00995.2016
  https://www.podbean.com/media/share/pb-9afkv-6b7aa7
*  Evidence for involvement of both IKCa and SKCa channels in hyperpolarizing responses of the rat middle cerebral artery. -...
BACKGROUND AND PURPOSE: Endothelium-derived hyperpolarizing factor responses in the rat middle cerebral artery are blocked by inhibiting IKCa channels alone, contrasting with peripheral vessels where block of both IKCa and SKCa is required. As the contribution of IKCa and SKCa to endothelium-dependent hyperpolarization differs in peripheral arteries, depending on the level of arterial constriction, we investigated the possibility that SKCa might contribute to equivalent hyperpolarization in cerebral arteries under certain conditions. METHODS: Rat middle cerebral arteries (approximately 175 microm) were mounted in a wire myograph. The effect of KCa channel blockers on endothelium-dependent responses to the protease-activated receptor 2 agonist, SLIGRL (20 micromol/L), were then assessed as simultaneous changes in tension and membrane ...
  https://pharm.ox.ac.uk/publications/106501
*  INCREASED MIDDLE CEREBRAL ARTERY PULSATILITY IN PATIENTS WITH LEUKOARAIOSIS: ENHANCED TRANSMISSION OF AORTIC PULSE WAVES DUE TO...
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings ...
  https://www.neuroscience.ox.ac.uk/publications/414678
*  The Linear Behavior of the System Middle Cerebral Artery Flow Velocity and Blood Pressure in Patients With Migraine | Stroke
Our approach to look at cerebral autoregulation in migraineurs showed 2 striking results. First, the phase and gain behavior was completely different compared with the controls, and second, the spectral power magnitudes of BP and V were very much increased in the migraineurs.. One interpretation of the transfer function approach is to consider the cerebrovascular system as a high-pass filter, which delays low frequencies and lets pass through the higher beat-by-beat-depending frequencies.6,7 Phase and gain are 2 parameters to describe the filter. The findings in our controls can be interpreted in exactly that way. The V lead over BP in the controls means that slow BP changes are delayed before they enter the cerebrovascular bed. In migraineurs, the phase shift indicates that BP is always earlier in time than V, hence BP is driving V. If the filter indicates the presence or absence of cerebral autoregulation, it is evident that migraine ...
  http://stroke.ahajournals.org/content/36/9/1886
*  Influence of upper body position on middle cerebral artery blood velocity during continuous positive airway pressure breathing ...
Continuous positive airway pressure (C PA P) is a treatment modality for pulmonary oxygenation difficulties. C PA P impairs venous return to the heart and, in turn, affects cerebral blood flow (CBF) a
  https://link.springer.com/article/10.1007%2Fs00421-007-0513-9
*  Middle Cerebral Artery Blood Velocity During Co2 Inhalation at Altitude | Clinical Science
Thank you for your interest in spreading the word about Clinical Science.. NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.. ...
  http://www.clinsci.org/content/78/s22/24P.2
*  hypercapnia | Cerebral Autoregulation
Authors: Kostoglou K, Debert CT, Poulin MJ, Mitsis GD.. We examined the time-varying characteristics of cerebral autoregulation and hemodynamics during a step hypercapnic stimulus by using recursively estimated multivariate (two-input) models which quantify the dynamic effects of mean arterial blood pressure (ABP) and end-tidal CO2 tension ( [Formula: see text] ) on middle cerebral artery blood flow velocity (CBFV). Beat-to-beat values of ABP and CBFV, as well as breath-to-breath values of [Formula: see text] during baseline and sustained euoxic hypercapnia were obtained in 8 female subjects. The multiple-input, single-output models used were based on the Laguerre expansion technique, and their parameters were updated using recursive least squares with multiple forgetting factors. The results reveal the presence of nonstationarities that confirm previously reported effects of hypercapnia on ...
  http://www.cerebralautoregulation.com/tags/hypercapnia
*  Frontiers | Cerebral hemodynamics during graded Valsalva maneuvers | Physiology
The Valsalva maneuver (VM) produces large and abrupt changes in mean arterial pressure (MAP) that challenge cerebral blood flow and oxygenation. We examined the effect of VM intensity on middle cerebral artery blood velocity (MCAv) and cortical oxygenation responses during (phase I, II, III) and following (phase IV) a VM. Healthy participants (n=20 mean ± SD: 27±7 y) completed 30 and 90% of their maximal VM mouth pressure for 10 s (order randomised) whilst standing. Beat-to-beat MCAv, cerebral oxygenation (NIRS) and MAP across the different phases of the VM are reported as the difference from standing baseline. There were significant interaction (phase * intensity) effects for MCAv, total oxygenation index (TOI) and MAP (all P
  https://www.frontiersin.org/articles/10.3389/fphys.2014.00349/full
*  Middle cerebral artery syndrome : Wikis (The Full Wiki)
Middle cerebral artery syndrome is a condition where the blood supply from the middle cerebral artery is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel.. Because this artery supplies much of the primary motor cortex, the cortical homunculus can be used to localize the defect more precisely.. ...
  http://www.thefullwiki.org/Middle_cerebral_artery_syndrome
*  Middle Cerebral Artery CVA
This page includes the following topics and synonyms: Middle Cerebral Artery CVA, Cerebrovascular Accident of Middle Cerebral Artery, MCA CVA.
  http://www.fpnotebook.com/neuro/CV/MdlCrbrlArtryCv.htm
*  Middle Cerebral Artery Stroke: Overview, Rehabilitation Setting Selection and Indications, Best Practices
Middle cerebral artery (MCA) stroke describes the sudden onset of focal neurologic deficit resulting from brain infarction or ischemia in the territory supplied by the MCA. The MCA is by far the largest cerebral artery and is the vessel most commonly affected by cerebrovascular accident.
  https://emedicine.medscape.com/article/323120-overview
*  Publications list | Luxembourg Institute of Health
Advice on lifestyle changes (diet, red wine and physical activity) does not affect internal carotid and middle cerebral artery blood flow velocity in patients with carotid arteriosclerosis in a randomized controlled trial ...
  https://ehis.lu/crp/publications/department/ciec-clinical-and-epidemiological-investigation-center-797/author/anna-chioti-310
*  Publications list | Luxembourg Institute of Health
Advice on lifestyle changes (diet, red wine and physical activity) does not affect internal carotid and middle cerebral artery blood flow velocity in patients with carotid arteriosclerosis in a randomized controlled trial ...
  https://www.lih.lu/crp/publications/department/ciec-clinical-and-epidemiological-investigation-center-797/author/michel-vaillant-53
*  Dynamic Autoregulation Testing in Patients With Middle Cerebral Artery Stenosis | Stroke
Thank you for your interest in spreading the word on Stroke.. NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address. ...
  http://stroke.ahajournals.org/content/early/2003/07/03/01.STR.0000080936.36601.34
*  K+ may act as an EDHF in rat middle cerebral artery - Oxford Neuroscience
We use cookies to ensure that we give you the best experience on our website. If you click 'Continue' we'll assume that you are happy to receive all cookies and you won't see this message again. Click 'Find out more' for information on how to change your cookie settings ...
  https://www.neuroscience.ox.ac.uk/publications/106736
*  cerebral artery - Posts
cerebral artery - MedHelp's cerebral artery Center for Information, Symptoms, Resources, Treatments and Tools for cerebral artery. Find cerebral artery information, treatments for cerebral artery and cerebral artery symptoms.
  http://www.medhelp.org/tags/show/84866/cerebral-artery?section=subjects
*  cerebral artery - User Journals
cerebral artery - MedHelp's cerebral artery Center for Information, Symptoms, Resources, Treatments and Tools for cerebral artery. Find cerebral artery information, treatments for cerebral artery and cerebral artery symptoms.
  http://www.medhelp.org/tags/show/84866/cerebral-artery?section=user_journals
*  Effects of oxygen and glucose deprivation on vasoactivity in isolated bovine middle cerebral arteries. | Stroke
The effects of oxygen and glucose deprivation on vasoactivity were investigated using helical strips of bovine middle cerebral artery. Hypoxia, created by reducing the PO2 of the bath, or oxidative inhibition with 2,4 dinitrophenol (DNP) or sodium azide, significantly reduced contractions induced by serotonin. Normal tonic contractions induced with fresh and aged whole blood, or 5-HT became phasic and quickly relaxed to baseline in a hypoxic environment. Glucose elimination from the Krebs medium, or the inhibition of the glycolytic pathway with iodoacetic acid (IAA), did not significantly reduce serotonin-induced contractions. However, contractions were inhibited more with the combination of oxygen and glucose deprivation, or DNP + IAA, than with oxygen deprivation alone. Efforts to produce rigor in this preparation by oxygen/substrate reduction or metabolic inhibition were unsuccessful. Tonic contractions induced by 70 mM ...
  http://stroke.ahajournals.org/content/17/5/970
*  Prolonged exposure to oxyhemoglobin modifies the response of isolated dog middle cerebral arteries to vasoactive substances. |...
We exposed helical strips of dog middle cerebral arteries to oxyhemoglobin for 5 hours, rinsed them with bathing medium, and stored them overnight; we compared the responses of strips thus treated with the responses of strips without oxyhemoglobin treatment. Relaxation induced by nicotine was abolished by hexamethonium and was markedly inhibited after exposure to oxyhemoglobin. A low concentration of KCl (5 mM) elicited relaxation that was abolished by ouabain and significantly reduced by oxyhemoglobin. Endothelium-dependent relaxation caused by calcium ionophore A23187 was attenuated, and that caused by substance P was reversed to contraction after exposure to oxyhemoglobin. Contraction elicited by substance P also depended on endothelium and was abolished by indomethacin. Relaxation induced by TRK-100, a stable analogue of prostaglandin I2, was moderately attenuated by oxyhemoglobin. On the other hand, concentration-dependent relaxation induced by ...
  http://stroke.ahajournals.org/content/20/5/657
*  Differences between middle cerebral artery bifurcations with n...
Differences between middle cerebral artery bifurcations with normal anatomy and those with aneurysms.: The objectives of this study were to elucidate the normal
  https://www.mysciencework.com/publication/show/differences-between-middle-cerebral-artery-bifurcations-normal-anatomy-those-aneurysms-3c72bf12
*  Branches of Middle Cerebral Artery
Are the branches of the middle cerebral artery considered seperate and distinct vessels for the purposes of catheter placement and interventions (ie.
  https://www.aapc.com/memberarea/forums/53363-branches-middle-cerebral-artery.html
*  Cerebrovascular responses during rowing: Do circadian rhythms explain morning and afternoon performance differences? - Wellcome...
The purpose of this study was to characterize cerebrovascular responses to rowing exercise, investigating whether their diurnal variation might explain performance differences across a day. Twelve male rowers completed incremental rowing exercise and a 2000-m ergometer time trial at 07:00 h and 16:00 h, 1 week apart, while middle cerebral artery velocity (MCAv), cerebral (prefrontal), and muscular (vastus lateralis) tissue oxygenation and hemoglobin volume (via near-infrared spectroscopy), heart rate, and pressure of end-tidal CO2 (PET CO2) were recorded. MCAv was 20-25% above resting levels (68 ± 12 cm/s) during submaximal and maximal exercise intensities, despite PET CO2 being reduced during maximal efforts (down ∼ 0.5-0.8 kPa); thus revealing a different perfusion profile to the inverted-U observed in other exercise modes. The afternoon time trial was 3.4 s faster (95% confidence interval ...
  https://www.win.ox.ac.uk/publications/607887
*  Cerebral Perfusion, Oxygenation, Electrical Activity - Full Text View - ClinicalTrials.gov
The specific aim of the research proposal in preterm infants with IVH and PHH who require placement of an Omaya reservoir or a shunt is to determine if decreasing ventricular volume improves, middle cerebral artery flow, cerebral oxygenation, and cortical neuronal electrical activity. To accomplish this aim, we will simultaneously perform the following evaluations prior to shunt placement or prior to and after routine CSF aspiration from reservoir in:. ...
  https://clinicaltrials.gov/ct2/show/NCT00747682
*  ICD-10 Diagnosis Code I60.12 Ntrm subarach hemorrhage from left middle cerebral artery
Diagnosis Code I60.12 information, including descriptions, synonyms, code edits, diagnostic related groups, ICD-9 conversion and references to the diseases index.
  https://icdlist.com/icd-10/i6012