onset of complications of subarachnoid hemorrhage(SAH)・vasospasm occurs in approx. 30% of patients with SAH 3–10 days(especially 7,8 days) after SAH
・recurrent bleeding occurs in 4–14% of patients with SAH in the first 24 hours (especially in the first 2–12 hours after SAH)
・Hydrocephalus
Occurs in 20–30% of patients with SAH
①Acute obstructive hydrocephalus
Usually occurs within minutes to hours after SAH
② Chronic communicating hydrocephalus
Usually occurs weeks or months after SAH neurologyneurosurgeryUWorld Jun 12, 2020, 3:17 AM HirotoShishido
which structure is targeted at by high-frequency deep brain stimulation(DBS) for medically intractable symptoms of Parkinson disease?globus pallidus internus or subthalamic nucleus
(stimulation of ventral intermediate nucleus of the thalamus may lessen excessive movements of essential tremor) neurologyneurosurgeryUWorld May 31, 2020, 8:51 AM HirotoShishido
pilocytic astrocytoma
region, histology, characteristics on imaging(Juvenile) pilocytic astrocytomas usually arise in the ☆cerebellum, brainstem, hypothalamic region, or optic pathways.
Microscopically, pilocytic astrocytomas are well-differentiated neoplasms comprised of ☆spindle cells with hair-like glial processes that are associated with microcysts. These cells are mixed with ☆Rosenthal fibers and granular eosinophilic bodies.
craniopharyngioma
symptomsbitemporal hemianopia
deficiency of the anterior pituitary gland(☆growth hormone, thyroid hormone) neurologyneurosurgery Dec 31, 2019, 12:16 AM HirotoShishido
