Diagnosing Malfunctioning Hydrocephalic Shunt Valves With a Flow Sensor

Withdrawn before enrolling

Conditions studied: Hydrocephalus

In brief

The study hypothesis is that a transit-time ultrasonic sensor can help doctors diagnose a malfunctioning shunt valve. The study will simulate an implanted shunt flow monitoring system by placing the flow sensor and a programmable shunt valve into the patient's Extra-Ventricular Drainage line. Flow will be measured as the doctor raises/lowers the drainage bag to simulate the patient sitting up/lying down. The doctor will simulate a malfunctioning shunt by changing the valve's pressure release settings for each cycle of raising/lowering the bag. By monitoring shunt flow during these changes, the doctors hope to develop new ways to diagnose malfunctioning shunt valves when implanted shunt flow monitors become available.

Key facts

Study ID

NCT00652249

Run by

Transonic Systems Inc.

People needed

0

Starts

2009-03-01

Expected to finish

2010-12-01

Last updated by the study team

2012-06-05

Who can join

Age: any, up to 20. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Diagnosed with Hydrocephalus
• Newborn through age 20
• External Ventriculostomy with an Extra-Ventricular Drainage system installed

You may not qualify if…

• Not diagnosed with Hydrocephalus
• Older than age 20
• No External Ventriculostomy with an Extra-Ventricular Drainage system installed

Where it is running

• Children's Hospital of Wisconsin — Milwaukee, Wisconsin, United States

Full record on ClinicalTrials.gov

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