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A subarachnoid hemorrhage is an abnormal and very dangerous condition in which blood collects beneath the arachnoid mater, a membrane that covers the brain. This area, called the subarachnoid space, normally contains cerebrospinal fluid. The accumulation of blood in the subarachnoid space can lead to stroke, seizures, and other complications
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What contains a delicate network of collagen and elastin fibers through which cerebrospinal fluid circulates?
The arachnoid mater is the layer of the meninges that contains a delicate network of collagen and elastin fibers through which cerebrospinal fluid circulates. It is located between the dura mater and the pia mater.
What is xanthochromasia?
Xanthochromasia is a discoloration of cerebrospinal fluid due to the pressence of blood. It's typically seen in the lumbar puncture of a patient with a subarachnoid hemorrhage.
Where does the csf drain from subarachnoid space?
In the brain we have small protrusions of the arachnoid and subarachnoid space into the venous system. These protrusions are called arachnoid villi or arachnoid granulations and they allow for drainage of CSF into the venous system. Another source of CSF drainage is the lymphatic system.
What is the space between the pia mater and the arachnoid membrane called?
That space is called as sub arachnoid space. It is filled with cerebrospinal fluid.
Where is cerebrospinal fluid?
Cerebrospinal fluid is found in the ventricles of the brain (which are inside the cerebral cortexes and the cerebellum) as well as flowing around the meninges of the brain and spinal cord (on the outside of both structures).
What are the types of subarachnoid hemorrhages?
Subarachnoid hemorrhages are classified into two general categories: traumatic and spontaneous.
Does smoking make subarachnoid hemorrhage more likely?
Smoking is a major factor in increasing the odds of sustaining a subarachnoid hemorrhage
Is traumatic subarachnoid haemorrhage cureble or not?
no
Where does cerebrospinal fluid flows?
subarachnoid space
What is SAB in type of anesthesia?
Subarachnoid anaesthesia
Can subarachnoid hemorrhage affect any age?
Subarachnoid hemorrhage can affect adults of all ages, but usually peaks in the fourth and fifth decades of life
What is the danger of subarachnoid hemorrhage?
Subarachnoid hemorrhage is a medical emergency that can result in a sudden, severe headache, nausea, vomiting, and loss of consciousness. It is often caused by a ruptured aneurysm in the brain, which can lead to complications such as stroke, brain damage, and even death if not promptly treated. Early detection and treatment are crucial in improving outcomes for individuals with subarachnoid hemorrhage.
Cerebrospinal fluid occupies the spaces within the meninges?
The Subarachnoid Space between the Arachnoid and Pia layers of the CNS (Central Nervous System)
How often do subarachnoid hemorrhages happen?
Subarachnoid hemorrhages are rare, accounting for around 5% of all strokes. They are often caused by the rupture of a blood vessel in the subarachnoid space, which is the area between the brain and the tissues that cover it. While less common than other types of strokes, they are a medical emergency that requires immediate attention.
What does cisterna subarachnoidalis mean?
Widening portions of the subarachnoid space within the cranium where the arachnoid bridges over a depression on the surface of the brain.See: subarachnoid space.Synonym: cisternae subarachnoideales
How can subarachnoid hemorrhages be prevented?
Traumatic brain injury is the leading cause of subarachnoid hemorrhages, so it follows that efforts to prevent head injury would prevent these hemorrhages.
Where does blood accumulate in subarachnoid hemorrhage?
Blood accumulates in the subarachnoid space, which is the area between the arachnoid membrane and the pia mater in the brain and spinal cord. Subarachnoid hemorrhage can occur due to the rupture of a blood vessel in this space, leading to bleeding and accumulation of blood that can cause serious neurological complications.
