Determination of the Accuracy of a Non-Invasive Continuous Blood Pressure Device

The recruitment status of this study is unknown because the information has not been verified recently.
Verified March 2011 by Oregon Health and Science University.
Recruitment status was  Recruiting
Sponsor:
Information provided by:
Oregon Health and Science University
ClinicalTrials.gov Identifier:
NCT01311128
First received: March 8, 2011
Last updated: May 27, 2011
Last verified: March 2011

March 8, 2011
May 27, 2011
March 2011
September 2011   (final data collection date for primary outcome measure)
Agreement between radial catheter, blood pressure cuff, and T-line in determining heart rate and blood pressure [ Time Frame: Assessed 24 times over four hours ] [ Designated as safety issue: No ]
Same as current
Complete list of historical versions of study NCT01311128 on ClinicalTrials.gov Archive Site
Agreement between the T-line and right heart catheter in determining cardiac output [ Time Frame: Assessed every 30 minutes over four hours ] [ Designated as safety issue: No ]
Same as current
Not Provided
Not Provided
 
Determination of the Accuracy of a Non-Invasive Continuous Blood Pressure Device
Determination of the Accuracy of a Non-Invasive Continuous Blood Pressure Device

This protocol will test a new non-invasive device, the T-line, in continuously determining heart rate and blood pressure in operative and critically ill patients. The accuracy of the device will be compared to the standard radial artery catheter, as well as to the non-invasive blood pressure cuff. The T-line will also be compared to the right heart catheter determining cardiac output in at least 20 patients.

Hypothesis: the T-line device will determine blood pressure and heart rate as accurately as a standard radial arterial catheter and a blood pressure cuff in perioperative patients.

Not Provided
Interventional
Not Provided
Intervention Model: Single Group Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Diagnostic
Critically Ill
Device: T-line hemodynamic monitoring device (placement and use)
The T-line device will be placed over the contralateral (from the radial artery catheter) radial artery at the distal wrist. To attach the device, a single-use sterile sensor is placed over the radial artery and the device then gently clamped around the wrist to incorporate the sensor. After a ten-minute stabilization period, data will be recorded every ten minutes during the first two hours of surgery, or until the patient is placed on cardiopulmonary bypass. The T-line device will then be removed. This intervention will be repeated, for a second two-hour period, in the ICU postoperatively.
Other Names:
  • T-line
  • Tensymeter
  • Tensys Medical, Inc.
  • Hemodynamic monitoring
Experimental: Heart rate and blood pressure determination
All subjects have the same conditions (T-line, blood pressure cuff, and radial artery catheter), in order to compare them within-subjects.
Intervention: Device: T-line hemodynamic monitoring device (placement and use)
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
40
Not Provided
September 2011   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Age at least 18 years old
  • Operative patients expected to require intensive care recovery at OHSU
  • Planned or existing intra- and postoperative radial artery catheterization as part of routine care
  • Palpable contralateral (to catheter) radial artery pulse
  • Planned intraoperative right heart catheter placement as part of routine clinical care, in at least 20 subjects of total

Exclusion Criteria:

  • No palpable radial artery pulse
  • Anatomical abnormalities (skin grafts, cysts, cellulitis) or injuries (scarring, cuts, burns, bruising) at the sensor site
  • An intravenous line placed at the sensor application site or within the medial/lateral travel range of the sensor
  • An AV shunt in the T-line arm
  • Known sensitivity to pressure stimuli (dermatographism)
Both
18 Years and older
No
Contact: Samantha S Ruimy, MSIS (503) 494-0724 ruimy@ohsu.edu
Contact: Charles Phillips, MD (503) 494-2465 phillipc@ohsu.edu
United States
 
NCT01311128
6980
Yes
Charles Phillips, MD, Oregon Health & Science University
Oregon Health and Science University
Not Provided
Not Provided
Oregon Health and Science University
March 2011

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP