Ommaya reservoir
Encyclopedia
An Ommaya reservoir is an intraventricular catheter
Catheter
In medicine, a catheter is a tube that can be inserted into a body cavity, duct, or vessel. Catheters thereby allow drainage, administration of fluids or gases, or access by surgical instruments. The process of inserting a catheter is catheterization...

 system that can be used for the aspiration of cerebrospinal fluid
Cerebrospinal fluid
Cerebrospinal fluid , Liquor cerebrospinalis, is a clear, colorless, bodily fluid, that occupies the subarachnoid space and the ventricular system around and inside the brain and spinal cord...

 or for the delivery of drugs (e.g. chemotherapy
Chemotherapy
Chemotherapy is the treatment of cancer with an antineoplastic drug or with a combination of such drugs into a standardized treatment regimen....

) into the cerebrospinal fluid
Cerebrospinal fluid
Cerebrospinal fluid , Liquor cerebrospinalis, is a clear, colorless, bodily fluid, that occupies the subarachnoid space and the ventricular system around and inside the brain and spinal cord...

. It consists of a catheter
Catheter
In medicine, a catheter is a tube that can be inserted into a body cavity, duct, or vessel. Catheters thereby allow drainage, administration of fluids or gases, or access by surgical instruments. The process of inserting a catheter is catheterization...

 in one lateral ventricle attached to a reservoir implanted under the scalp. It is used to treat brain tumors or leptomeningeal disease by intrathecal
Intrathecal
Intrathecal is an adjective that refers to something introduced into or occurring in the space under the arachnoid membrane of the brain or spinal cord...

 drug administration. In the palliative care
Palliative care
Palliative care is a specialized area of healthcare that focuses on relieving and preventing the suffering of patients...

 of terminal cancer, an Ommaya reservoir can be inserted for intracerebroventricular (ICV) injection of morphine.

It was originally invented in 1963 by Ayub K. Ommaya
Ayub K. Ommaya
Ayub Khan Ommaya, MD, ScD , FRCS, FACS was a Pakistani neurosurgeon and the inventor of the Ommaya reservoir. The reservoir is used to provide chemotherapy directly to the tumor site for brain tumors. Ommaya was also a leading expert in traumatic brain injuries.-Professional history:Dr. Ommaya...

, a Pakistani neurosurgeon.
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