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Hydrocephalus & Shunt Glossary http://www.divideclassic.org/Documents/Hydroglossary.htm Arachnoid: the middle layer of the meninges (covering the brain) Atrium: right chamber of the heart Catheter (ventricular): the tube of the shunt that enters the ventricle Choroid Plexus: tissue in the ventricles that produce CSF Contrast Material: dye injected into the blood or CSF for enhancement of imaging studies; helps abnormal tissue stand out CSF: cerebrospinal fluid CVD: continuous ventricular drainage; same as EVD Dilated: enlarged Distal: farthest away; opposite of proximal Dura:
the outermost membrane of the meninges
(covering of the brain) EVD: external ventricular drainage system – drains CSF outside of the body; same as CVD Gallbladder: sac-like organ in the abdomen; shunts are occasionally placed here Hematoma: collection of blood; blood clot Horns (of ventricles): ends of the lateral ventricles: frontal, temporal, occipital Hydrocephalus: imbalance between the production and absorption of CSF with high pressure within the brain ICP:
intracranial pressure Macrocephaly: large head Meninges: membranes (3) that cover the brain and spinal cord Microcephaly: small head MRI: magnetic resonance imaging Peritoneal Cavity: abdominal cavity containing omentum and other organs Pia: the innermost layer of the meninges (covering of brain) Pleura: lining around the lungs Proximal: closest part Rickham Reservoir: chamber in the shunt between the ventricular catheter and the valve Sagittal: plane of reference that divides the head into right and left halves Shuntogram: an imaging study with contrast to assess shunt function Shunt Series: an x-ray study to assess the connections of the shunt parts and placement of the distal catheter tip Shunt Tap: a small needle inserted into the shunt reservoir or valve to collect CSF or measure ICP Silastic: soft rubbery plastic used to make most shunt materials Subarachnoid: between the pia and arachnoid meninges Subdural: between the dura and arachnoid meninges Third Ventriculostomy: a hole surgically created between the 3rd ventricle and subarachnoid space for drainage of CSF VA: ventriculoatrial VP: ventriculoperitoneal or ventriculopleural Valve: the part of the shunt that regulates the outflow resistance of CSF Ventricles: cavities within the brain that contain CSF; there are 4 ventricles – 2 lateral, third and the fourth Ventriculomegaly: large ventricles Ventriculostomy: a catheter in a ventricle that drains CSF outside of the body
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