Brain ischemia

cerebral ischemiacerebral ischaemiaischemic strokeacute cerebral ischemiaacute ischemic strokeblockage or narrowingblood clots in the brainbraincerebral hypoperfusioncerebral ischemia/infarction
Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand.wikipedia
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Stroke

ischemic strokestrokescerebrovascular accident
This leads to poor oxygen supply or cerebral hypoxia and thus to the death of brain tissue or cerebral infarction / ischemic stroke.
There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding.

Cerebral infarction

cerebral infarctbrain infarctionstroke
This leads to poor oxygen supply or cerebral hypoxia and thus to the death of brain tissue or cerebral infarction / ischemic stroke.
A cerebral infarction is an area of necrotic tissue in the brain resulting from a blockage or narrowing in the arteries supplying blood and oxygen to the brain.

Subarachnoid hemorrhage

subarachnoid haemorrhagesubarachnoidsubarachnoid hemorrhage, traumatic
It is a sub-type of stroke along with subarachnoid hemorrhage and intracerebral hemorrhage.

Moyamoya disease

moyamoyaMoya Moya Disease
Recently, Moyamoya disease has also been identified as a potential cause for brain ischemia.
The clinical features are strokes, recurrent transient ischemic attacks (TIAs), sensorimotor paralysis (numbness and paralysis of the extremities), convulsions and/or migraine-like headaches.

Cerebrovascular disease

cerebrovascularcerebrovascular diseasescerebrovascular disorders
Moyamoya disease is an extremely rare cerebrovascular condition that limits blood circulation to the brain, consequently leading to oxygen deprivation.

Mechanism of anoxic depolarization in the brain

Anoxic depolarization is a progressive and uncontrollable depolarization of neurons during stroke or brain ischemia in which there is an inadequate supply of blood to the brain.

Watershed stroke

Bilateral Watershed Strokewatershed infarctionwatershed region
A watershed stroke is defined as a brain ischemia that is localized to the vulnerable border zones between the tissues supplied by the anterior, posterior and middle cerebral arteries.

Strangling

strangulationstrangledstrangle
Other causes associated with brain hypoxia include drowning, strangling, choking, cardiac arrest, head trauma, and complications during general anesthesia.

Carbon monoxide poisoning

carbon monoxideCarbon monoxide inhalationcarbon monoxide toxicity
Potential causes of brain hypoxia are suffocation, carbon monoxide poisoning, severe anemia, and use of drugs such as cocaine and other amphetamines.
This causes reduced cardiac output and hypotension, which may result in brain ischemia.

Intracerebral hemorrhage

cerebral hemorrhagebrain hemorrhagecerebral haemorrhage
It is a sub-type of stroke along with subarachnoid hemorrhage and intracerebral hemorrhage.

Visual perception

visionsighteyesight
The main symptoms involve impairments in vision, body movement, and speaking.

Speech

spokenspeakingspeech communication
The main symptoms involve impairments in vision, body movement, and speaking.

Sickle cell disease

sickle cell anemiasickle-cell diseasesickle-cell anemia
The causes of brain ischemia vary from sickle cell anemia to congenital heart defects.

Congenital heart defect

congenital heart diseasecongenital heart defectsheart defect
The causes of brain ischemia vary from sickle cell anemia to congenital heart defects.

Brain

brain functionmammalian braincerebral
Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand.

Internal carotid artery

internal carotid arteriesinternal carotidinternal
Ischemia within the arteries branching from the internal carotid artery may result in symptoms such as blindness in one eye, weakness in one arm or leg, or weakness in one entire side of the body.

Vertebral artery

vertebral arteriesvertebralvertebro
Ischemia within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as dizziness, vertigo, double vision, or weakness on both sides of the body.

Dizziness

dizzydisequilibriumgiddiness
Ischemia within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as dizziness, vertigo, double vision, or weakness on both sides of the body.

Vertigo

dizzinessvertiginousperipheral vertigo
Ischemia within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as dizziness, vertigo, double vision, or weakness on both sides of the body.

Diplopia

double visionMonocular diplopiadouble-vision
Ischemia within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as dizziness, vertigo, double vision, or weakness on both sides of the body.

Relaxed pronunciation

slurred speechslurslurring
Other symptoms include difficulty speaking, slurred speech, and the loss of coordination.

Ataxia

gluten ataxiaataxicloss of coordination
Other symptoms include difficulty speaking, slurred speech, and the loss of coordination.

Infarction

infarctinfarctedinfarcts
If the brain becomes damaged irreversibly and infarction occurs, the symptoms may be permanent.

Unconsciousness

unconsciousloss of consciousnessnarcosis
Similar to cerebral hypoxia, severe or prolonged brain ischemia will result in unconsciousness, brain damage or death, mediated by the ischemic cascade.

Brain damage

brain injurybrain injuriesbrain lesion
Similar to cerebral hypoxia, severe or prolonged brain ischemia will result in unconsciousness, brain damage or death, mediated by the ischemic cascade.