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The location of the shunt is determined by the neurosurgeon based on the type and location of the blockage causing hydrocephalus. All brain ventricles are candidates for shunting. The catheter is most commonly placed in the abdomen but other locations include the heart and lungs. [10] Shunts can often be named after the route used by the ...
Hydrocephalus can also be caused by overproduction of CSF (relative obstruction) (e.g., choroid plexus papilloma, villous hypertrophy). [26] [27] Bilateral ureteric obstruction is a rare, but reported, cause of hydrocephalus. Hydrocephalus can be classified into communicating and noncommunicating (obstructive).
Cerebrospinal fluid diversion is a procedure that is used to drain fluid from the brain and spinal cord.A shunt is placed in a ventricle of the brain and threaded under the skin to another part of the body, usually the abdomen.
The ETV procedure is used as an alternative to a cerebral shunt [2] mainly to treat certain forms of noncommunicating obstructive hydrocephalus (such as aqueductal stenosis), but since the ETV was introduced as an accepted treatment modality the range of etiologies for which it is used has grown significantly.
When catheter drainage is permanent, it is usually referred to as a shunt. There are many catheter-based ventricular shunts that are named for where they terminate, for example, a ventriculoperitoneal shunt terminates in the peritoneal cavity, a ventriculoatrial shunt terminates within the atrium of the heart, etc.
An external ventricular drain (EVD), also known as a ventriculostomy or extraventricular drain, is a device used in neurosurgery to treat hydrocephalus and relieve elevated intracranial pressure when the normal flow of cerebrospinal fluid (CSF) inside the brain is obstructed.
Sinai Baltimore NPH Study 2012-2014 Michael A. Williams MD is conducting ShuntCheck testing on adult hydrocephalus patients undergoing radionuclide shunt patency testing. This study, funded by the NIH, [ 21 ] [ 22 ] seeks to demonstrate that ShuntCheck results match radionuclide results.
Each of the types of shunts listed above can be composed of a tube or catheter and various types of valves, although they can just be composed of the tubing or catheter. Below is a list of valves that are used in lumbar–peritoneal shunts (LP shunts) and Cerebral shunts (for a more detailed list of the types of valves see type of valves): Delta