Intracranial hemorrhage (ICH) refers to acute bleeding inside your skull or brain. Itâs a life-threatening emergency. You should go to the emergency room right away or call 911 if you think you or someone you know is experiencing ICH.
A hematoma is a collection of blood, in a clot or ball, outside of a blood vessel. An epidural hematoma occurs when blood accumulates between your skull and the outermost covering of your brain.
It typically follows a head injury, and usually with a skull fracture. High-pressure bleeding is a prominent feature. If you have an epidural hematoma, you may briefly lose consciousness and then regain consciousness.
Subdural hematoma
A subdural hematoma is a collection of blood on the surface of your brain.
Itâs typically the result of your head moving rapidly forward and stopping, such as in a car accident. However, it could also suggest abuse in children. This is the same type of movement a child experiences when being shaken.
A subdural hematoma is more common than other ICHs in older people and people with history of heavy alcohol use.
Subarachnoid hemorrhage
A subarachnoid hemorrhage is when thereâs bleeding between the brain and the thin tissues that cover the brain. These tissues are called meninges. The most common cause is trauma, but it can also be caused by rupture of a major blood vessel in the brain, such as from an intracerebral aneurysm.
A sudden, sharp headache usually comes before a subarachnoid hemorrhage. Typical symptoms also include loss of consciousness and vomiting.
Intracerebral hemorrhage
Intracerebral hemorrhage is when thereâs bleeding inside of your brain. This is the most common type of ICH that occurs with a stroke. Itâs not usually the result of injury.
A prominent warning sign is the sudden onset of neurological deficit. This is a problem with your brainâs functioning. The symptoms progress over minutes to hours. They include:
a headache associated with a recent blow to your head
a mild and long-lasting headache
a headache accompanied by neck stiffness
confusion
drowsiness
vomiting more than twice in 24 hours
seizure
coma
ICH in children
ICH in a child can indicate child abuse. The damage may be the result of a blow to the head or by shaking the child. This can lead to abusive head trauma (formerly referred to as âshaken baby syndromeâ). This is a condition that occurs when violent shaking leads to serious brain damage in a child.
Other signs of child abuse are:
swollen head
retinal hemorrhages
vomiting
seizure
unconsciousness
fractures of arms and legs of different ages
Babies less than 12 months old may develop a swollen fontanel, or soft spot.
Report suspected child abuse right away by calling 911 or 1-800-4-A-CHILD (1-800-422-4453).
The first step your doctor will take to diagnose ICH is a CT scan of your head. A CT scan can show abnormalities in your brain like swelling or clots.
The CT scan may not show any sign of ICH. If youâre still having symptoms, your doctor may choose to perform a lumbar puncture, or spinal tap, to test the fluid that cushions your spine and brain.
ICH is a medical emergency. Survival depends on getting treatment right away.
It may be necessary to operate to relieve the pressure on the skull. Drilling a small hole in the skull releases blood. Drilling a larger hole or removing a piece of the skull may be necessary to remove a blood clot.
The outlook depends on the severity of the hemorrhage and how quickly you get medical care. Remember, ICH is a life-threatening condition.
Depending on the severity of the hemorrhage, draining a hematoma can lead to recovery. Physical or occupational therapy is sometimes needed to help you return to normal activities.
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Zhu Z, et al. (2020). Early initiation of oral antihypertensives reduces intensive care unit stay and hospital cost for patients with hypertensive intracerebral hemorrhage [Abstract]. https://link.springer.com/article/10.1007/s12028-020-00951-1