ABCN Deck 2 Flashcards
Perinatal stroke refers to strokes occurring between ____ weeks gestation and the first ____ days of life.
20, 28
In adults, following stroke, ________ has been shown to dissolve the occlusive clot and increase the probability of restoring blood flow to the surrounding ischemic penumbra. However, its use is limited by the need to provide treatment within ___ to ___ hours of symptom onset.
tissue plasminogen activator; 3 to 4.5
AD accounts for __% of dementia cases.
70
In AD the ____ lobe and _____ areas are where most atrophy occurs.
temporal, association
amyloid deposition in blood vessels, resulting in repeated hemorrhage, ischemic infarction, cognitive loss.
cerebral amyloid angiopathy.
_______ dementia is characterized by deficits in episodic memory (acquisition, storage), progressive social withdrawal, increased apathy; followed by deficits in other cognitive domains including language, EF, attention, processing speed, and visuospatial skills.
Alzheimer’s
Mixed pathology was found in __% of vascular dementia cases, with ___ + VAD being the most common.
77, AD
Lacunar infarcts of the ___, ___, & ___ may have disproportionate dysarthria, impaired gait, pseudobulbar palsy, and loss of initiation.
basal ganglia, thalamus, related white matter
The lesions of AD consistent of synaptic and neuronal loss associated with progressive deposition of ___ in the form of diffuse ___, along with accumulation of ___ in the form of ______ and ______.
amyloid, neuritic plaques, tau, neurofibrillary tangles, neuropil threads.
Most common cause of intracranial hemorrhage in children
Trauma
____ scans are sensitive to lacunar infarcts, which are “silent” but can be extensive enough to produce neurocognitive deficits.
MRI
The neuropathological functional progression of AD: early stages? followed by?
early stages: hippocampus & entorhinal cortex; followed by: frontal, temporal, parietal association areas
Common risk factors for ____ include: maternal infertility, preeclampsia, prolonged rupture of membranes, chorioamnionitis, prothrombotic states or thrombophilia
perinatal ischemic stroke
Up to __ % of people over age 65 have symptoms consistent with AD
10
Vascular dementia associated with increased periventricular white matter signal, lacunar infarcts, sparing of subcortical U fibers, slowly progressing clinical course. Validity of this disease has been called into question.
Binswanger’s disease
In ___, primary motor, visual, auditory, and somatosensory cortices tend to be relatively unaffected until quite late in the disease process.
AD
acute presentation of stroke in the posterior circulation in children can present as
ataxia, vertigo, or vomiting
Where is the infarct? L leg weakness & sensory loss. Sometimes, grasp reflex, EF deficits, and L hemineglect. Larger infarcts may cause L hemiplegia
Right ACA