Proposed Definition of Experimental Secondary Ischemia for Mouse Subarachnoid Hemorrhage

AbstractInconsistency in outcome parameters for delayed cerebral ischemia (DCI) makes it difficult to compare results between mouse studies, in the same way inconsistency in outcome parameters in human studies has for long obstructed adequate comparison. The absence of an established definition may in part be responsible for the failed translational results. The present article proposes a standardized definition for DCI in experimental mouse models, which can be used as outcome measure in future animal studies. We used a consensus-building approach to propose a definition for “experimental secondary ischemia” (ESI) in experimental mouse subarachnoid hemorrhage that can be used as an outcome measure in preclinical studies. We propose that the outcome measure should be as follows: occurrence of focal neurological impairment or a general neurological impairment compared with a control group and that neurological impairment should occur secondarily following subarachnoid hemorrhage (SAH) induction compared with an initial assessment following SAH induction. ESI should not be used if the condition can be explained by general anesthesia or if other means of assessmen ts sufficiently explain function impairment. If neurological impairment cannot reliably be evaluated, due to scientific setup. Verification of a significant secondary impairment of the cerebral perfusion compared with a control group is mandatory. This requires longitudinal examination in the same a nimal. ...
Source: Translational Stroke Research - Category: Neurology Source Type: research

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Authors: Susmitha K, Chandrasekhar V, Kiran G, Divya A, Rani GS, Sarangapani M Abstract Stroke is becoming a main cause of early death and disability in developing countries like India, and it is mostly enhanced by increased predominance of major risk factors. A detailed knowledge about the nature and magnitude of the stroke cases in this particular area is not only important for acute treatment but also it helps to prevent hospital admissions due to reoccurring stroke. The present study was conducted in the Department of Stroke at MGM Hospital, Warangal, India, to study the patterns of stroke admissions. All the c...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
(University of Texas Health Science Center at Houston) Results of an Electronic Health Record (EHR) study assessing the most commonly used medications for raising blood pressure in patients with nontraumatic subarachnoid hemorrhage (SAH), a rare type of stroke, have been published in Neurosurgical Focus by scientists at The University of Texas Health Science Center at Houston (UTHealth).
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
CONCLUSION: This study describes the current status of acute stroke care in Korea. Despite quite acceptable quality of stroke care, it suggests regional and hospital disparities. Expansion of stroke units, stroke center certification or accreditation, and connections between stroke centers and emergency medical services are highly recommended. PMID: 32449325 [PubMed - in process]
Source: Journal of Korean Medical Science - Category: Biomedical Science Tags: J Korean Med Sci Source Type: research
Authors: Gattellari M, Goumas C, Jalaludin B, Worthington JM Abstract OBJECTIVES: Epidemiological trends for major causes of death and disability, such as stroke, may be monitored using administrative data to guide public health initiatives and service delivery. METHODS: We calculated admissions rates for ischaemic stroke, intracerebral haemorrhage and subarachnoid haemorrhage between 1 January 2005 and December 31st, 2013 and rates of 30-day mortality and 365-day mortality in 30-day survivors to 31 December 2014 for patients aged 15 years or older from New South Wales, Australia. Annual Average Percentage...
Source: Neurological Research - Category: Neurology Tags: Neurol Res Source Type: research
AbstractCoronavirus disease 2019 (COVID-19), a disease caused by the novel betacoronavirus (SARS-CoV-2), has become a global pandemic threat. The potential involvement of COVID-19 in central nervous system (CNS) has attracted considerable attention due to neurological manifestations presented throughout the disease process. In addition, SARS-CoV-2 is structurally similar to SARS-CoV, and both bind to the angiotensin-converting enzyme 2 (ACE2) receptor to enter human cells. Thus, cells expressing ACE2, such as neurons and glial cells may act as targets and are thus vulnerable to SARS-CoV-2 infection. Here, we have reviewed ...
Source: Journal of Neurology - Category: Neurology Source Type: research
CONCLUSIONS: The incidence of SAH appears to have decreased in recent years, with SAH-I comprising 17.9% of the cases. Patients with SAH-I have better prognosis and lower risk of complications, highlighting the benignity of SAH-PM. PMID: 32457002 [PubMed - as supplied by publisher]
Source: Neurocirugia - Category: Neurosurgery Authors: Tags: Neurocirugia (Astur) Source Type: research
ConclusionsNeurostimulant administration during acute stroke care may improve wakefulness. Future controlled studies with a neurostimulant administration protocol, prospective evaluation, and discretely defined response and safety criteria are needed to confirm these encouraging findings.
Source: Neurocritical Care - Category: Neurology Source Type: research
ConclusionThe available evidence suggests hyperosmolar therapy may be helpful in reducing ICP elevations or cerebral edema in patients with SAH, TBI, AIS, ICH, and HE, although neurological outcomes do not appear to be affected. Corticosteroids appear to be helpful in reducing cerebral edema in patients with bacterial meningitis, but not ICH. Differences in therapeutic response and safety may exist between HTS and mannitol. The use of these agents in these critical clinical situations merits close monitoring for adverse effects. There is a dire need for high-quality research to better inform clinicians of the best options ...
Source: Neurocritical Care - Category: Neurology Source Type: research
This article will review basic neurovascular anatomy, periprocedural management, NA technique, and tips for safe and successful outcomes. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Seminars in Interventional Radiology - Category: Radiology Authors: Tags: Review Article Source Type: research
CONCLUSIONS: Weight loss or gain could be a risk factor for mortality from total or ischemic CVD, while weight loss could be a risk factor for intracerebral hemorrhage. PMID: 32378530 [PubMed - as supplied by publisher]
Source: Journal of Atherosclerosis and Thrombosis - Category: Cardiology Tags: J Atheroscler Thromb Source Type: research
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