NCT00651950

Brief Summary

The study hypothesis is that nurses and doctors can use a transcutaneously powered ultrasonic flow sensor to make repeatable and accurate hydrocephalic shunt flow measurements. The study participants will align the flowmeter probe with a flow sensor hidden under a thick saline pad that simulates skin. A hidden pump will provide a known flow through the flow sensor as the participants make their measurements. Each participant will repeat these measurements over a period of weeks, and the data will tell whether operator skill influences flow measurement accuracy.

Trial Health

30
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Mar 2009

Geographic Reach
1 country

1 active site

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 31, 2008

Completed
3 days until next milestone

First Posted

Study publicly available on registry

April 3, 2008

Completed
11 months until next milestone

Study Start

First participant enrolled

March 1, 2009

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2010

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2010

Completed
Last Updated

June 5, 2012

Status Verified

June 1, 2012

Enrollment Period

1.8 years

First QC Date

March 31, 2008

Last Update Submit

June 4, 2012

Conditions

Keywords

Hydrocephalusshunt dysfunctionshunt flow

Outcome Measures

Primary Outcomes (1)

  • Standard deviation of error between operator-measured flow measurements and actual flow measurements.

    Daily and weekly

Secondary Outcomes (1)

  • Flow measurement accuracy vs. the number of times the measurement is conducted.

    Daily, weekly

Study Arms (1)

Operator Dependence

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Three neurosurgeons and six nurses

You may qualify if:

  • neurosurgeon
  • nurse

You may not qualify if:

  • none

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Children's Hospital of Wisconsin

Milwaukee, Wisconsin, 53226, United States

Location

MeSH Terms

Conditions

Hydrocephalus

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Officials

  • Cornelis J Drost, BS, MS

    Transonic Systems Inc.

    PRINCIPAL INVESTIGATOR
  • Bruce A Kaufman, MD

    Children's Hospital and Health System Foundation, Wisconsin

    STUDY DIRECTOR
0

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 31, 2008

First Posted

April 3, 2008

Study Start

March 1, 2009

Primary Completion

December 1, 2010

Study Completion

December 1, 2010

Last Updated

June 5, 2012

Record last verified: 2012-06

Locations