Non-invasive Measurement of CO in Patients With Uncomplicated Sepsis

April 25, 2019 updated by: Medical Centre Leeuwarden

Can Non-invasive Measurement of Cardiac Index, Stroke Volume and Systemic Vascular Resistance Contribute to Better Tailoring of Treatment in Patients Presenting With Sepsis to the ED?

Little is known about the optimal fluid therapy of patients with uncomplicated sepsis. Most recommendations are extrapolated from studies performed in patients with septic shock. Therefore, it is unknown how effective our current fluid therapy is. Furthermore, current therapy is not tailored to individual needs. The aim of the current study is to investigate the added value of non-invasive measurements of (dynamic) circulatory parameters in the treatment of a convenience sample of sepsis patients presenting to the ED.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
31

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Netherlands
      • Leeuwarden, Netherlands
        • Medisch Centrum Leeuwarden

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

At presentation in the ED:

  • there has to be evidence of an infection: -temp <36 or >38 without an obvious cause for hypo-or hyperthermia
  • There has to be evidence of organ dysfunction by the presence of at least one of the following criteria: altered mental state, hypoxia (spo2<94% or 5% lower than baseline), lactate >2 mmol/l in ABGA or VBGA directly drawn after presentation, hypotension (MAP<65 mmHg or SBP<100mmHg), or a respiratory rate>22/min.

Exclusion Criteria:

  • Age<16
  • Patients with septic shock (i.e. who remained hypotensive after fluid bolus administration, needing vasopressor therapy to obtain a MAP>65 in the presence of a lactate >2. (i.e. septic shock) These will be excluded afterwards, but will be shown in an inclusion flowchart.
  • Subjects for whom it is impossible to obtain a reliable signal for Clearsight measurements.
  • Increased abdominal pressures
  • Need for immediate ventilatory support or surgery
  • Presence of an acute cerebral event, acute coronary syndrome, acute pulmonary edema, status asthmaticus, active gastrointestinal bleed, trauma
  • Known metastatic cancer
  • Pregnancy

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

  • Primary Purpose: Screening
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: PLR & Clearsight measurements
All patients 16years or older presenting to the ED with uncomplicated sepsis (see inclusion and exclusion criteria) will undergo a Passive Leg Raise (PLR, non-invasive) and multiple measurements by the Clearsight non-invasive hemodynamic monitoring system. Followed by a fluid challenge (common practice; non interventional)
Other: Passive leg raise (PLR)

A PLR will simulate an autotransfusion of 250-300 cc.

  • 1. Starting in semi-succumbed position (45 degree head-up)
  • 2. PLR is performed by lowering head-end and putting a for this purpose designed device of 45 degrees under the patients legs. The PLR is non-invasive.
Other: Clearsight non-invasive hemodynamic monitoring system
3 baseline readings will be done for CO, CI, SV and SVR, separated by one minute intervals. Subsequently, the standardized passive leg-raise test will be performed and measurements of CO, CI, SV and SVR will be repeated at 30, 60, 90 and 120 seconds. Then the patient is repositioned to his original position, and after two minutes another reading of CO, CI, SV and SVR is done. Then all patients will receive a fluid challenge of 500cc natriumchloride 0.9% IV, considered as normal treatment/ common practice in our ED. 120 seconds after finishing the fluid challenge the final reading of CO, CI, SV and SVR is done.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
The percentage of subjects in whom a passive leg raise test resulted in a 15% or more improvement in cardiac index measured by the Clearsight non-invasive hemodynamic monitoring system.
Time Frame: 1 hour
3 baseline readings will be done for CI separated by one minute intervals. Subsequently, the standardized passive leg-raise test will be performed and measurements of CI will be repeated at 30, 60, 90 and 120 seconds. Then the patient is repositioned to his original position, and after two minutes another reading of CI is done. A difference of 15% or more is found to be clinically significant.
1 hour

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
The ability of non-invasively measured baseline CO, CI, SVR and SV to predict fluid-responsiveness correctly (measurements by the Clearsight non-invasive hemodynamic monitoring system).
Time Frame: 1 hour
3 baseline readings will be done for CO, CI, SV and SVR, separated by one minute intervals. Subsequently, the standardized passive leg-raise test will be performed and measurements of CO, CI, SV and SVR will be repeated at 30, 60, 90 and 120 seconds. Then the patient is repositioned to his original position, and after two minutes another reading of CO, CI, SV and SVR is done. Then all patients will receive a fluid challenge of 500cc natriumchloride 0.9% IV, considered as normal treatment/ common practice in our ED. 120 seconds after finishing the fluid challenge the final reading of CO, CI, SV and SVR is done.
1 hour

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medical Centre Leeuwarden

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ewoud ter Avest, MD, PhD, Medisch Centrum Leeuwarden

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 23, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 23, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 17, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 1, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 2, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 26, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 25, 2019

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
June 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • nWMO271

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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