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Condition: Hemorrhagic Stroke
Procedure: Perfusion

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Total 533 results found since Jan 2013.

Hemorrhagic Transformation in Ischemic Moyamoya Disease: Clinical Characteristics, Radiological Features, and Outcomes
Conclusions: HT in adult ischemic MMD is a rare phenomenon, but it is strongly associated with increased disability rates and mortality. The normal cerebral perfusion is a possible risk factor associated with HT in adult ischemic MMD. Recognition of HT in adult ischemic MMD may contribute to an improved outcome.
Source: Frontiers in Neurology - June 24, 2020 Category: Neurology Source Type: research

Pituitary apoplexy causing acute ischemic stroke: Which treatment should be given priority.
Conclusion: Direct compression of ICA is rare complication of pituitary apoplexy, which caused cerebral ischemia. Conventional angiography should be necessary for accurate diagnosis and prompt surgical decompression should be the treatment of choice. PMID: 32494388 [PubMed]
Source: Surgical Neurology International - June 6, 2020 Category: Neurosurgery Tags: Surg Neurol Int Source Type: research

Dual-Energy CT Follow-Up After Stroke Thrombolysis Alters Assessment of Hemorrhagic Complications
Conclusion: Compared to pCT, DECT within 36 h after IV thrombolysis for acute ischemic stroke, changes the radiological diagnosis of post-treatment ICH to “CS only” in a small proportion of patients. Studies are warranted of whether the altered radiological reports have an impact on patient management, for example initiation timing of antithrombotic secondary prevention.
Source: Frontiers in Neurology - May 18, 2020 Category: Neurology Source Type: research

Clinical and Radiological Outcomes After Revascularization of Hemorrhagic Moyamoya Disease
Conclusion: Direct revascularization may be superior to indirect revascularization for prevention of rebleeding and poor neurological outcome in adults with hemorrhagic MMD. The risk of postoperative rebleeding was higher in those with untreated aneurysms, repetitive bleeding episodes, normal perfusion status, and indirect revascularization. The regression of original collaterals and establishment of revascularization collaterals after revascularization were more significant in hemispheres with direct revascularization than those with indirect revascularization.
Source: Frontiers in Neurology - May 6, 2020 Category: Neurology Source Type: research

The Early Change in PaCO2 After Extracorporeal Membrane Oxygenation Initiation is Associated with Neurological Complications.
CONCLUSIONS: In patients receiving ECMO for respiratory failure, a large relative decrease in PaCO2 in the first 24 hours after ECMO initiation is independently associated with an increased incidence of neurological complications. PMID: 32251606 [PubMed - as supplied by publisher]
Source: American Journal of Respiratory and Critical Care Medicine - April 5, 2020 Category: Respiratory Medicine Authors: Cavayas YA, Munshi L, Del Sorbo L, Fan E Tags: Am J Respir Crit Care Med Source Type: research

What is the Role of Hyperosmolar Therapy in Hemispheric Stroke Patients?
AbstractThe role of hyperosmolar therapy (HT) in large hemispheric ischemic or hemorrhagic strokes remains a controversial issue. Past and current stroke guidelines state that it represents a reasonable therapeutic measure for patients with either neurological deterioration or intracranial pressure (ICP) elevations documented by ICP monitoring. However, the lack of evidence for a clear effect of this therapy on radiological tissue shifts and clinical outcomes produces uncertainty with respect to the appropriateness of its implementation and duration in the context of radiological mass effect without clinical correlates of ...
Source: Neurocritical Care - March 19, 2020 Category: Neurology Source Type: research

Comparison of direct stenting with conventional strategy on myocardial impairments in ST-segment elevation myocardial infarction: a cardiac magnetic resonance imaging study
AbstractDirect stenting (DS) without pre-dilatation of the culprit lesion might improve myocardial perfusion and prognosis in patients undergoing percutaneous coronary intervention for ST-elevation myocardial infarction (STEMI); however, some studies report conflicting results. We investigated whether DS provides incremental myocardial benefits over conventional stenting (CS) in STEMI patients based on cardiac magnetic resonance imaging (CMR) measures. Reperfused patients who underwent CMR examinations within 1  week of STEMI onset were selected from a multicenter CMR registry of STEMI (NCT: 03768453). Patients were strat...
Source: The International Journal of Cardiovascular Imaging - March 11, 2020 Category: Radiology Source Type: research

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 ...
Source: Translational Stroke Research - March 8, 2020 Category: Neurology Source Type: research

Treatment targets based on autoregulation parameters in neurocritical care patients
Purpose of review This review summarizes the physiological basis of autoregulation-oriented therapy in critically ill patients, with a particular emphasis on individual targets based on parameters that describe autoregulation of cerebral blood flow. Recent findings The concepts of optimal cerebral perfusion (CPPopt) and arterial pressures (ABPopt), which both take advantage of continuous measures of cerebral autoregulation, recently have been introduced into clinical practice. It is hypothesized that if both pressures are used as individual targets and followed, the incidence and severity of dysautoregulation will dim...
Source: Current Opinion in Critical Care - March 6, 2020 Category: Nursing Tags: ACUTE NEUROLOGICAL PROBLEMS: Edited by Peter Le Roux Source Type: research

Inducing ketogenesis via an enteral formulation in patients with acute brain injury:a phase II study.
Conclusion: In patients with acute brain injury, an enterally administered ketogenic formulation increased plasma ketone concentrations, was well tolerated, did not impact on cerebral hemodynamics and can be safely administered.Clinical trial registered at the Australian New Zealand Clinical Trials Registry (ACTRN12616000332426)Abbreviations: BHB: betahydroxybutyrate; AcAc: acetoacetate; ABI: acute brain injury; TBI: traumatic brain injury; CSF: cerebrospinal fluid; SAH: subarachnoid injury; CVA: cerebrovascular accidents; ICP: intracranial pressure; CPP: cerebral perfusion pressure; ICU: intensive care unit; EVD: external...
Source: Neurological Research - February 28, 2020 Category: Neurology Tags: Neurol Res Source Type: research

The Value of Whole-Brain Perfusion Parameters Combined with Multiphase Computed Tomography Angiography in Predicting Hemorrhagic Transformation in Ischemic Stroke
Objective: To explore the value of whole-brain perfusion parameters combined with multiphase computed tomography angiography (MP-CTA) in predicting the hemorrhagic transformation (HT) of ischemic stroke. Methods: A total of 64 patients with ischemic stroke who underwent noncontrast computed tomography, computed tomography perfusion imaging, and computed tomography angiography before treatment from August 2017 to June 2019 were included retrospectively. The perfusion parameters cerebral blood volume (CBV), cerebral blood flow (CBF), time to peak (TTP), mean transit time (MTT), time to maximum (Tmax), and permeability surfac...
Source: Journal of Stroke and Cerebrovascular Diseases - February 13, 2020 Category: Neurology Authors: Xiang Li, Huan Liu, Wenbing Zeng, Xinghua Liu, Yun Wen, Qiuxia Xiong, Ran Yang Source Type: research

CT radiomics unlocks basal ganglia stroke onset time
The combination of radiomics and a machine-learning algorithm can determine...Read more on AuntMinnie.comRelated Reading: AI may help improve management of stroke patients AI finds infarction in stroke patients on unenhanced CT CT plus CT perfusion predicts stroke surgery outcomes CTA lowers costs, improves outcomes for minor stroke Can AI find brain hemorrhage as well as radiologists?
Source: AuntMinnie.com Headlines - February 11, 2020 Category: Radiology Source Type: news

Cerebral Hemodynamic Changes After Revascularization in Patients With Hemorrhagic Moyamoya Disease
Conclusion: In patients with hemorrhagic MMD, the CBV appeared to decrease and be relatively stable in the chronic phase after revascularization, with varying degrees of MTT and TTP shortening. However, there was no significant change in CBF.
Source: Frontiers in Neurology - February 10, 2020 Category: Neurology Source Type: research

Eligibility for intravenous thrombolysis in acute ischemic stroke patients presenting in the 4.5 –9 h window
ConclusionOur everyday clinical practice experience suggests 9.8  % of consecutive AIS patients present in the 4.5–9 h window and 2.2 % adhere to EXTEND neuroimaging eligibility criteria for IVT. Only 1.3% of AIS is eligible for IVT according to EXTEND neuroimaging and clinical eligibility criteria.
Source: Neuroradiology - January 31, 2020 Category: Radiology Source Type: research

AI finds infarction in stroke patients on unenhanced CT
Canadian researchers found that their artificial intelligence (AI) algorithm...Read more on AuntMinnie.comRelated Reading: CT plus CT perfusion predicts stroke surgery outcomes CTA lowers costs, improves outcomes for minor stroke Can AI find brain hemorrhage as well as radiologists? Mobile CT unit boosts efficiency of stroke triage SIR: Stroke treatment training program improves outcomes
Source: AuntMinnie.com Headlines - January 30, 2020 Category: Radiology Source Type: news