Catheterization, Central Venous Clinical Trial
Official title:
Central Venous Access Catheter Placement by Interventional Radiologists Using the Sonic Flashlight for Real Time Ultrasound Guidance
Verified date | February 2008 |
Source | University of Pittsburgh |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Institutional Review Board |
Study type | Observational |
The investigators have developed a new device for guiding invasive procedures with
ultrasound (US), which they call the sonic flashlight (SF). They attach a half-silvered
mirror and a small flat-panel monitor directly to an ultrasound transducer to project a
virtual image of the US scan into its actual location within the patient. This permits the
operator to guide a needle through the skin by aiming directly at the image, using natural
hand-eye coordination rather than looking away from the patient at a conventional display.
The device requires no tracking or head-mounted apparatus, and provides an intuitive merger
of the visual exterior of the patient with an in situ ultrasound image, which can be
simultaneously viewed by others assisting the operator. The investigators believe the SF
will increase the accuracy, safety, and speed for a wide variety of invasive procedures, and
will require less extensive training than conventional US displays.
Given the wide variety of procedures for which the SF could be used, the investigators have
narrowed their focus to applying it to a single application: vascular access. They have
demonstrated clinically that the SF can be used successfully to guide the placement of the
peripherally inserted central catheter (PICC) lines. The research proposed here will expand
this application to include the insertion of other central venous access (CVA) lines through
the internal jugular vein, subclavian vein, and femoral vein. The historical approach to CVA
line placements has involved the physical exam and identification of visible landmarks. With
the introduction and common usage of ultrasound, it has become routine to use ultrasound
guidance.
Much of the difficulty in learning conventional ultrasound (CUS) guided procedures stems
from the displaced sense of hand-eye coordination that occurs when the operator looks away
from the operating field to see the ultrasound display. The SF directly addresses many of
these issues and therefore the investigators believe that it is well suited for this
application. They have already shown that novice US users learn vascular access procedures
in training phantoms more quickly using the SF than CUS. They have also shown that
intravenous (IV) team nurses already proficient in CUS guided PICC lines perform vascular
access in training phantoms more quickly using the SF than CUS guidance. Finally, as
mentioned earlier, the investigators have shown that the SF can be used successfully to
guide the placement of PICC lines. This study will test the hypothesis that the SF will
successfully facilitate catheter placement in the subclavian, femoral, and internal jugular
veins demonstrating equal vasculature visualization as conventional ultrasound.
Status | Completed |
Enrollment | 150 |
Est. completion date | December 2006 |
Est. primary completion date | |
Accepts healthy volunteers | |
Gender | Both |
Age group | 18 Years and older |
Eligibility |
Inclusion Criteria: - Subjects must be 18 years of age or older - The subjects will be patients already coming to interventional radiology services at University of Pittsburgh Medical Center (UPMC)-Presbyterian to have a CVA line placed. - The racial, gender, and ethnic characteristics of the proposed subject population reflects the demographics of Pittsburgh and the surrounding area and/or the patient population of the University of Pittsburgh Medical Center. Exclusion Criteria: - Once 50 patients needing a particular insertion site have participated, no further recruiting will be done for patients needing the same insertion site. - No exclusion criteria shall be based on race, ethnicity, gender, or HIV status. |
Time Perspective: Prospective
Country | Name | City | State |
---|---|---|---|
United States | University of Pittsburgh | Pittsburgh | Pennsylvania |
Lead Sponsor | Collaborator |
---|---|
University of Pittsburgh | National Institutes of Health (NIH) |
United States,
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