Relation of infarction location and volume to vertigo in vertebrobasilar stroke

ConclusionInfarction location in the cerebellum and/or dorsal brainstem is an independent predictor of vertigo. Furthermore, larger infarction volume in these structures is associated with vertigo. A considerable proportion of patients with vascular vertigo present without focal neurological deficits posing a diagnostic challenge. National Institute of Health Stroke Scale is not sensitive for vertebrobasilar stroke.
Source: Brain and Behavior - Category: Neurology Authors: Tags: ORIGINAL RESEARCH Source Type: research

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We describe a new method to induce focal brain damage targeting the motor cortex to study damage to the descending motor tracts in the non-human primate. Stereotaxic injection of malonate into the primary motor cortex produced a focal lesion in middle-aged marmosets (Callithrix jacchus). Assessment of sensorimotor function using a neurological scale and testing of forelimb dexterity and strength lasted a minimum of 12  weeks. Lesion evolution was followed by magnetic resonance imaging (MRI) at 24 h, 1 week, 4 and 12 weeks post-injury and before sacrifice for immunohistochemistry. Our model produced consistent les...
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Source: Japanese Journal of Radiology - Category: Radiology Source Type: research
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We report the case of a 63-year-old man with multiple atherosclerotic risk factors and atrial fibrillation who showed repeated episodes of isolated vertigo. His repeated vertigo was short-lasting and was often triggered by body position, mimicking benign paroxysmal positional vertigo.
Source: Journal of Stroke and Cerebrovascular Diseases - Category: Neurology Authors: Tags: Case Report Source Type: research
ConclusionEmergency department patients with symptoms of vertigo or dizziness had sevenfold higher risk of acute cerebrovascular syndromes than the general population. Atrial fibrillation and diabetes mellitus are risk factors associated with high risk of acute cerebrovascular syndromes in these patients.
Source: European Archives of Oto-Rhino-Laryngology - Category: ENT & OMF Source Type: research
Cerebellar strokes account for less than 10% of all strokes but lead to significantly poor outcomes. Cerebellar strokes that are initially missed have a mortality rate of 40%, and half of the patients who survive have long-term deficits. The patient's history may provide clues that point to a cerebellar stroke. Signs and symptoms include vertigo, headache, vomiting and ataxia. It is important to note the presence of stroke risk factors, such as a history of strokes or transient ischemic attacks, diabetes mellitus, hypertension, hypercholesterolemia, advanced age, atrial fibrillation, and cigarette smoking. The importance o...
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We present 2 cases in the setting of acute vertebrobasilar territory ischaemia. Case 1: A 56-year old man was admitted with acute dyspnoea and new atrial fibrillation. On day two while lying in bed, he developed vomiting and suddenly perceived the curtain to his left was lying horizontal along the floor and felt he was sliding towards the left. MRI brain revealed acute multiterritory infarction (Figure 1). He was commenced on therapeutic anticoagulation and was well on follow-up. Case 2: A 47-year old man awoke with acute vertigo, vomiting and ataxia, exacerbated by head movement with dysarthria and diplopia. The worl...
Source: Journal of Neurology, Neurosurgery and Psychiatry - Category: Neurosurgery Authors: Tags: Drugs: CNS (not psychiatric), Stroke, Ophthalmology, Ear, nose and throat/otolaryngology ABN Annual Meeting, 17-19 May 2016, The Brighton Centre, Brighton Source Type: research
Conclusions: Cerebral infarcts due to CM in immunocompetent patients are unusual. However, cryptococcal infection should be considered in atypical stroke manifestations, since early diagnosis and prompt treatment can improve outcome.Disclosure: Dr. Khattak has nothing to disclose. Dr. Desai has nothing to disclose. Dr. Desai has nothing to disclose. Dr. Wise has nothing to disclose. Dr. Moore has nothing to disclose. Dr. Shah has nothing to disclose. Dr. Wilder has nothing to disclose. Dr. Remmel has nothing to disclose. Dr. Liu has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Cerebrovascular Case Reports Source Type: research
A woman in her 70s with a medical history significant for atrial fibrillation and cardioembolic stroke who was receiving long-term anticoagulation therapy with warfarin (international normalized ratio, 2.3) presented to an outside facility with sudden onset of nausea and vertigo. Her mental status declined and she was unable to protect her airway, prompting intubation. Computed tomographic scan (CT) at that time was negative for any intracranial pathologic findings. On arrival to our facility, the patient remained lethargic and unresponsive; therefore, a second noncontrast head CT was performed, which showed no evidence fo...
Source: JAMA Internal Medicine - Category: Internal Medicine Source Type: research
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