نتایج جستجو برای: subarachnoid hemorrhage sah

تعداد نتایج: 97775  

Journal: :Arquivos de neuro-psiquiatria 2016
Douglas Mendes Nunes Bruna Garbugio Dutra Antônio Carlos Martins Maia Reginaldo Carlos Boni Antônio José da Rocha

Terson’s Syndrome (TS) was originally described as intraocular hemorrhage associated with aneurysmal subarachnoid hemorrhage (SAH)1. It is a consequence of sudden rise in intracranial pressure (IP) that reduces venous return to the cavernous sinus or obstruct the retinochoroidal anastomoses and central retinal vein, culminating in venous stasis and ocular hemorrhage (Figure). TS has also been r...

Journal: :Magnesium research 2007
George K C Wong Wai S Poon Matthew T V Chan Ronald Boet Tony Gin Christopher W Lam

Abnormal serum sodium levels are frequently observed among patients with aneurysmal subarachnoid hemorrhage (SAH) and may worsen cerebral edema or mass effect. Low serum potassium levels (hypokalemia) are also common among patients with aneurysmal SAH and are associated with prolonged QT interval and ventricular arrhythmia. Recent meta-analysis suggests that MgSO4 infusion improves the clinical...

Journal: :Journal of visualized experiments : JoVE 2014
Lukas Andereggen Volker Neuschmelting Michael von Gunten Hans Rudolf Widmer Jukka Takala Stephan M Jakob Javier Fandino Serge Marbacher

Early brain injury and delayed cerebral vasospasm both contribute to unfavorable outcomes after subarachnoid hemorrhage (SAH). Reproducible and controllable animal models that simulate both conditions are presently uncommon. Therefore, new models are needed in order to mimic human pathophysiological conditions resulting from SAH. This report describes the technical nuances of a rabbit blood-shu...

Journal: :Arquivos de neuro-psiquiatria 1991
M Fisher

The diagnosis of primary intracerebral hemorrhage (ICH) and subarachnoid hemorrhage (SAH) has become easier with the advent of modern imaging techniques. The incidence of ICH has declined, while SAH has remained relatively constant. The prognosis for both disorders remains dismal and the mortality rate is substantially higher than that observed with ischemic stroke. Early imaging with CT or MRI...

Journal: :Journal of neurosurgery 2013
George M Ibrahim Aria Fallah R Loch Macdonald

OBJECT At present, the administration of prophylactic antiepileptic medication following aneurysmal subarachnoid hemorrhage (SAH) is controversial, and the practice is heterogeneous. Here, the authors sought to inform clinical decision making by identifying factors associated with the occurrence of seizures following aneurysm rupture. METHODS Exploratory analysis was performed on 413 patients...

Journal: :Journal of emergency medicine case reports 2023

Fluid attenuated inversion recovery (FLAIR) is one of the most effective magnetic resonance imaging (MRI) sequences in diagnosis subarachnoid hemorrhage (SAH). However, sometimes false positive or negative results can occur. One reasons that lead to erroneous interpretation artifacts. Especially when metallic artifact occurs, hyperintensity may be observed space, similar SAH. Although FLAIR hyp...

Journal: :Handbook of clinical neurology 1957
Michael T Lawton G Edward Vates

Aneurysmal subarachnoid hemorrhage (SAH) is a neurological emergency with high risk of neurological decline and death. Although the presentation of a thunderclap headache or the worst headache of a patient's life easily triggers the evaluation for SAH, subtle presentations are still missed. The gold standard for diagnostic evaluation of SAH remains noncontrast head computed tomography (CT) foll...

Journal: :Stroke 1975
A N Martins T F Doyle N Newby A I Kobrine A Ramirez

The hydrogen clearance method was used to measure local and total cerebral blood flow (CBF) in the rhesus monkey before and for five hours after a simulated subarachnoid hemorrhage (SAH). CBF remained stable after SAH unless SAH was associated with a fall in cerebral perfusion pressure. In addition, cerebrovascular resistance did not increase after SAH. These results suggest that vasoactive age...

Journal: :Arquivos de neuro-psiquiatria 2010
Nelson de Azambuja Pereira Filho Arthur de Azambuja Pereira Filho Fabiano Pasqualotto Soares Ligia Maria Barbosa Coutinho

Vasospasm remains an extremely serious complication that affects patients presenting with subarachnoid hemorrhage (SAH) due to ruptured intracranial aneurysms. The current therapeutic armamentarium is still insufficient in many cases, and the search for new therapies is necessary. In this study, we evaluated the effect of N-acetylcysteine (NAC) on cerebral arterial vasospasm using an experiment...

Journal: :Neurological research 2006
Julian Cahill John W Calvert John H Zhang

Apoptosis is the term given to programmed cell death, which has been widely connected to a number of intracranial pathologies including stroke, Alzheimer's disease, and more recently subarachnoid hemorrhage (SAH). Subarachnoid hemorrhage is a disease, without any form of effective treatment, that affects mainly the young and middle aged and as a result is responsible for severe disability in ot...

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