A-line/CareTaker Comparison Study in ICU Patients

June 22, 2015 updated by: Empirical Technologies Corporation
Comparison of Blood Pressures obtained with the Pulse Decomposition Algorithm and Intra-Arterial Catheters in ICU Patients

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The object of the work presented here was to validate a new approach to tracking blood pressure that is based on the pulse analysis of the peripheral arterial pressure pulse. The approach, referred to as the Pulse Decomposition Analysis (PDA) model, goes beyond traditional pulse analysis by invoking a physical model that comprehensively links the components of the peripheral pressure pulse envelope with two reflection sites in the central arteries.

In these experiments, approved by the University of Virginia Institutional Review Board, the arterial blood pressures of patients (23 m/11 f, mean age: 44.05 y, SD: 13.9 y, mean height: 173.3 cm, SD: 9.4 cm, mean weight: 95.3 kg, SD: 27.4 kg) hospitalized in University of Virginia Medical Intensive Care Units (MICUs) were monitored using radial intra-arterial catheters, while the CareTaker system collected pulse line shapes at the lower phalange of the thumb of the ipsilateral hand.

Systolic and diastolic blood pressures continuously collected from the arterial catheter and CT were compared. Pearson correlation coefficients were calculated between arterial catheter and CT blood pressure measurements and a Bland-Altman analysis was created. Results were within the limits established for the validation of automatic arterial pressure monitoring (AAMI/ANSI/ISO 81060-1:2013).

Study Type

Observational

Enrollment (Actual)

60

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

(23 m/11 f, mean age: 44.05 y, SD: 13.9 y, mean height: 173.3 cm, SD: 9.4 cm, mean weight: 95.3 kg, SD: 27.4 kg) hospitalized in University of Virginia Medical Intensive Care Units (MICUs)

Description

Inclusion Criteria:

  • male or female age 18 to 45
  • presence of a radial arterial catheter
  • informed consent by subject or surrogate
  • available digital pulse

Exclusion Criteria:

  • failure to meet all of the inclusion criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Performance comparison according to AAMI/ANSI/ISO 81060-1:2013
Time Frame: 40 minutes
Correlation and standard deviation between both blood pressure measurement systems were assessed according to 81060 standards.
40 minutes

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Empirical Technologies Corporation

Collaborators

University of Virginia

Investigators

  • Principal Investigator: Martin C. Baruch, PhD, Empirical Technologies Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2012

Primary Completion (Actual)

December 1, 2012

Study Completion (Actual)

June 1, 2013

Study Registration Dates

First Submitted

June 22, 2015

First Submitted That Met QC Criteria

June 22, 2015

First Posted (Estimate)

June 24, 2015

Study Record Updates

Last Update Posted (Estimate)

June 24, 2015

Last Update Submitted That Met QC Criteria

June 22, 2015

Last Verified

June 1, 2015

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • ETC_CareTaker_01

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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