Type of Surgery
Last updated: 02/17/2009
The diagnosis of hydrocephalus should be confirmed by diagnostic imaging techniques, such as computed tomography scan (CT scan) or magnetic resonance imaging (MRI), before the shunting procedure is performed. These techniques will also show...
any associated brain abnormalities. CSF should be examined if infection or tumor of the meninges is suspected. Patients with dementia or mental retardation should undergo neuropsychological testing to establish a baseline psychological profile before the shunting procedure.
As with any surgical procedure, the surgeon must know about any medications or health problems that may increase the patient's risk. Because infections are both common and serious, antibiotics are often given before and after surgery.
Ventricular shunt is a surgical procedure in which a tube is placed in one of the fluid-filled chambers inside the brain (ventricles). The fluid around the brain and the spinal column is called the cerebrospinal fluid. When infection or disease causes an excess of this cerebrospinal fluid in the ventricles, the shunt is placed to drain it and thereby relieve excess pressure.
Ventricular shunt relieves hydrocephalus, a condition in which the ventricles are enlarged. In hydrocephalus, pressure from the cerebrospinal fluid usually increases. It may be caused by tumor of the brain or of the membranes covering the brain (meninges), infection of or bleeding into the cerebrospinal fluid, or inborn malformations of the brain. Symptoms of hydrocephalus may include headache, personality disturbances and loss of intellectual abilities (dementia), problems in walking, irritability, vomiting, abnormal eye movements, or a low level of consciousness.
Normal pressure hydrocephalus is associated with progressive dementia, problems in walking, and loss of bladder control (urinary incontinence). Even though the cerebrospinal fluid is not thought to be under increased pressure in this condition, it may also be treated by ventricular shunting.
Even patients who had a single metastasis surgically removed should have radiation therapy as there are always individual tumor cells remaining.
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