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Status unknownNCT03795831Updated Jan 10, 2019

Validation Study in Patients of a Non-invasive Blood Pressure Monitor for Perioperative Use

An observational study in Intraoperative Hypotension, sponsored by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA). Status unknown at 1 site in Netherlands. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-01-10.

Sponsored by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) · Observational

The sponsor has not verified this record recently (last verified Jan 2019), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
100
Ages
18 Years and older
Sex
All
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Study summary

Collecting all available data (waveforms, beat to beat data, status data) generated by a non invasive blood pressure monitor on each hand and compare this to the actual data obtained by intra arterial (radial) monitoring.

This to see if the non invasive bloodpressure monitor can be validated for intraoperative use.

Read the detailed description

Although a blood pressure monitoring device could be evaluated by the comparing systolic, diastolic and mean arterial pressure to a reference pressure, it is the specific aim to collect all available data (waveforms, beat to beat data, status data) generated by the blood pressure monitor.

After data analysis and comparison to patient's actual intra-arterial waveform, the outcome will be evaluated by Association for the Advancement of Medical Instrumentation (AAMI) standards to see if the non invasive bloodpressure monitor can be validated for intraoperative use.

The study is targeted at patients already monitored with a system that accurately measures and stores the intra-arterial waveform, such as the FloTrac system in the EV1000 monitor.

This study is a substudy of a feasability protocol evaluating a new algorithm for the Clearsight system.

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Conditions studied

  • Intraoperative Hypotension

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03

In context

Hypotension

1,003 studies on the registry are indexed under Hypotension; 173 are open to participants now.

This study's planned enrollment of 100 is above the median of 84 across 294 observational studies indexed under Hypotension.

Browse Hypotension studies →

Lead sponsor

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) is the lead sponsor of 512 studies on the registry; 178 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Patients in a perioperative setting already monitored with a system that accurately measures and stores the intra-arterial waveform, such as the FloTrac system in the EV1000 monitor.

Inclusion criteria

  • Patients whose arterial blood pressure is measured invasively with technology that allows for the storage of the intra-arterial waveform with sufficient quality and resolution (Flotrac).
  • Patients older than 18, for elective general surgery.

Exclusion criteria

Exclusion Criteria:

  • Patient conditions that are expected to potentially and significantly affect the transfer of pressure between radial artery and the finger, e.g. due to recent finger fractures
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Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
100 participants (estimated)
Target follow-up
1 Day
Patient registry
Yes

Groups and cohorts

  • Cohort

    Adult patients, undergoing surgery requiring general anesthesia, planned to be monitored with a system that accurately measures and stores the intra-arterial waveform.

    Device: ClearSight feasibility testing

Interventions

  • DeviceClearSight feasibility testing

    A cuff is placed on a finger of the patient. The ClearSight system uses a volume clamp technology allowing measuring of continuous blood pressure waveform. Note: There will only be observational recordings, no interventions

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What researchers measure

Primary outcomes

  1. validation systole, diastole, mean ABP and pulse pressure

    accuracy and precision of invasive blood pressure curve vs non-invasive blood pressure curves(ipsilateral and contralateral)

    Time frame: within 1 hour

  2. implementation of software alterations to improve systole, diastole, mean ABP accuracy and pulse pressure

    Comparison of the non-invasive blood pressure curve after software alterations to the reference and invasive arterial blood pressure curve

    Time frame: time during surgery

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Study locations

1 of 1 sites recruiting
  • Academic Medical Center
    Amsterdam, 1105AZ, Netherlands
    Recruiting
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References and documents

Publications

  • Kho E, van der Ster BJP, van der Ven WH, Vlaar APJ, Immink RV, Veelo DP. Clinical agreement of a novel algorithm to estimate radial artery blood pressure from the non-invasive finger blood pressure. J Clin Anesth. 2022 Dec;83:110976. doi: 10.1016/j.jclinane.2022.110976. Epub 2022 Sep 26. PubMed 36174389 ↗

Individual participant data

Plan to share: Undecided

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 10, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03795831
Lead sponsor
Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Collaborators
Edwards Lifesciences
Responsible party
D.P.Veelo (Principal investigator, Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)) — Principal investigator
First posted
Jan 8, 2019
Start date
Mar 1, 2017
Primary completion
Dec 30, 2019 (estimated)
Completion
Dec 30, 2019 (estimated)
Last update
Jan 10, 2019

Study contacts

D.P. Veelo, Dr
Contact
d.p.veelo@amc.uva.nl
0031205662533
D.P. Veelo, Dr
principal investigator · inverstigator

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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