shunt valve


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shunt valve

[′shənt ‚valv]
(engineering)
A valve that gives a fluid under pressure a more readily available escape route than the normal route.
References in periodicals archive ?
Persistent headache, emesis, lethargy, change in the neurologic exam, visual changes such as diplopia or loss of conjugate gaze, or swelling or redness along the shunt valve or tubing are indications to take the child for medical evaluation.
Children are counseled to avoid contact sports that may cause injury to the shunt valve or head trauma.
3.) The external programmer activates the servomotor which in turn rotates the cam, resulting in a change in the operating pressure of the shunt valve. (See Fig.
The plain-film imaging procedure described for radiographic confirmation of the Codman Hakim programmable shunt valve pressure setting is safe, easy to perform and a reliable indicator of shunt valve pressure status.
Teach patients and families that the shunt valve must be reprogrammed after every MR scan and the pressure verified with a skull radiograph.
Fluoroscopy of programmable cerebrospinal fluid shunt valve settings.
Standard postoperative care for nonprogrammable shunt valves requires patients to remain in bed with the head horizontal for 48 to 72 hours.
The use of a shunt valve in EVD for patients in this series was found to be beneficial in allowing greater activity for patients and simplifying requirements for nursing care activities.