CClinicalTrials.gg
Status unknownNCT05557461Updated Jan 25, 2023

Assessment of Fluid Responsiveness in Septic Shock Patients, Can End-tidal co2 Measurement Help?

An observational study in Septic Shock, Hypovolemia and Sepsis, sponsored by Bozyaka Training and Research Hospital. Status unknown at 1 site in Turkey. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-01-25.

Sponsored by Bozyaka Training and Research Hospital · Observational

The sponsor has not verified this record recently (last verified Jan 2023), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
60
Ages
18 Years and older
Sex
All
01

Study summary

Fluid therapy is important in patients with sepsis and septic shock. There are many invasive and non-invasive methods to assess fluid responsiveness in patients. The specificities and sensitivities of these methods are highly variable. The reason for our study was to determine end-tidal co2 and fluid responsiveness in septic shock patients. The aim of the study was to evaluate the fluid response using the End-tidal CO2 difference in septic shock patients receiving intubated mechanical ventilation support.

Read the detailed description

End-tidal CO2 is a parameter that can be easily measured with our non-invasively available monitors. If results are positive, fluid response of patients can be measured with a non-invasive, easy-to-apply method.

The significance of end-tidal CO2 will be confirmed by the passive leg raise test. Assessment of fluid responsiveness with the passive leg raise test is currently seen as the non-invasive reference test used.

It has proven its accuracy and reliability in many studies. In the passive leg raise test, end-tidal CO2 will be compared between the group with and without fluid responsiveness.

Scope of the study: Patients hospitalized in the general and reanimation intensive care units of our hospital and diagnosed with septic shock for any reason.

Method(s) to be applied: All patients diagnosed with septic shock will be included in the study.

The passive leg raise test, will be applied to the patients, and cardiac output and end-tidal CO2 changes will be recorded with transthoracic echocardiography before and after.

Fluid responsiveness is considered to be present in patients whose stroke volume variation output change measured by echocardiography increases by 10% or more after the passive leg raise test.

Patients will be divided into 2 groups according to fluid responsiveness. Group-1 group with fluid responsiveness in passive leg raise test, Group-2 group with no fluid response in passive leg raise test. End-tidal CO2 will be compared between groups.

Passive leg raise test: After the patients are in a semi-sitting position (at least 2 minutes), two healthcare professionals will take the supine position and then lift their legs 45 degrees, wait for 2 minutes and return to the initial position.

With this maneuver, it is anticipated that approximately 150-300 ml of autotransfusion will be administered to the patient.

Statistical analyzes will be made with the SPSS 21 program. Normally distributed data will be expressed as mean ± standard deviation, non-normally distributed data will be expressed as median. Categorical data will be expressed as a percentage. The difference between the mean and median values will be evaluated according to the distribution of the data by Student's t or Mann-Whitney U test. Categorical data will be evaluated with the chi-square test. A p value \<0.05 will be considered significant.

02

Conditions studied

  • Septic Shock
  • Hypovolemia
  • Sepsis

Keywords

  • passive leg raise
  • capnography
  • fluid therapy
  • echocardiography
  • Fluid Responsiveness
03

In context

Shock, Septic

862 studies on the registry are indexed under Shock, Septic; 207 are open to participants now.

This study's planned enrollment of 60 is below the median of 100 across 298 observational studies indexed under Shock, Septic.

Browse Shock, Septic studies →

Lead sponsor

Bozyaka Training and Research Hospital is the lead sponsor of 50 studies on the registry; 5 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Patients hospitalized in the general and reanimation intensive care units of our hospital and diagnosed with septic shock for any reason

Inclusion criteria

  • over 18 years old
  • in circulatory shock
  • Hemodynamically stable for 10 minutes (whether or not he takes vasoactive drugs)
  • Followed in mechanical ventilation with invasive arterial monitoring

Exclusion criteria

Exclusion Criteria:

  • pregnant
  • Heart cannot be visualized by echocardiography
  • Patients for whom passive leg raise test cannot be performed
  • Bilateral lower extremity amputation
  • Patients who are hemodynamically unstable
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
60 participants (estimated)
Patient registry
No

Groups and cohorts

  • Group-1

    group with fluid responsiveness in passive leg raise test After the patients are in a semi-sitting position (at least 2 minutes), two healthcare professionals will take the supine position and then lift their legs 45 degrees, wait for 2 minutes and return to the initial position. 10% change in stroke volume will be considered positive and patients will be divided into 2 groups as fluid-responsive and non-responsive.

    Device: End-tifdal co2, systolic, diastolic blood pressure, ppv values and vci distensibility

  • Group-2

    group with no fluid response in passive leg raise test After the patients are in a semi-sitting position (at least 2 minutes), two healthcare professionals will take the supine position and then lift their legs 45 degrees, wait for 2 minutes and return to the initial position. 10% change in stroke volume will be considered positive and patients will be divided into 2 groups as fluid-responsive and non-responsive.

    Device: End-tifdal co2, systolic, diastolic blood pressure, ppv values and vci distensibility

Interventions

  • DeviceEnd-tifdal co2, systolic, diastolic blood pressure, ppv values and vci distensibility

    (0,1,3,5 minutes measurements will be taken) measured before and after the test will be recorded and compared. Cardiac output and stroke volume variation, vci distensibility will be measured and recorded by a specialist cardiologist using siemens ocuson cv70 (Siemens AG Medical Solutions, Henkestrasse, the Germany) echocardiography before and after the test.

06

What researchers measure

Primary outcomes

  1. end tidal co2

    the level of carbon dioxide that is released at the end of an exhaled breath

    Time frame: Recording will be made immediately before the passive leg raise test.

  2. end tidal co2

    the level of carbon dioxide that is released at the end of an exhaled breath

    Time frame: Recording will be made at the 1st minute after the end of the test.

  3. end tidal co2

    the level of carbon dioxide that is released at the end of an exhaled breath

    Time frame: Recording will be made 3rd minute after the end of the test.

Secondary outcomes

  1. diastolic blood pressure

    Time frame: Recording will be made immediately before the passive leg raise test.

  2. diastolic blood pressure

    Time frame: Recording will be made at the 1st minute after the end of the test.

  3. diastolic blood pressure

    Time frame: Recording will be made 3rd minute after the end of the test.

  4. systolic blood pressure

    Time frame: Recording will be made immediately before the passive leg raise test.

  5. systolic blood pressure

    Time frame: Recording will be made at the 1st minute after the end of the test.

  6. systolic blood pressure

    Time frame: Recording will be made 3rd minute after the end of the test.

  7. ppv values

    Pulse pressure variation

    Time frame: Recording will be made immediately before the passive leg raise test.

  8. ppv values

    Pulse pressure variation

    Time frame: Recording will be made at the 1st minute after the end of the test.

  9. ppv values

    Pulse pressure variation

    Time frame: Recording will be made 3rd minute after the end of the test.

  10. vci distensibility

    Distensibility Index of Inferior Vena Cava

    Time frame: Recording will be made immediately before the passive leg raise test.

  11. vci distensibility

    Distensibility Index of Inferior Vena Cava

    Time frame: Recording will be made at the 1st minute after the end of the test.

  12. vci distensibility

    Distensibility Index of Inferior Vena Cava

    Time frame: Recording will be made 3rd minute after the end of the test.

07

Study locations

1 of 1 sites recruiting
  • UHS Izmir Bozyaka Education and Research Hospital
    Izmir, Karabağlar 35100, Turkey
    • Mehmet Ugur Bilgin · Contact · +905545118874
    Recruiting
08

References and documents

Publications

  • Monnet X, Marik P, Teboul JL. Passive leg raising for predicting fluid responsiveness: a systematic review and meta-analysis. Intensive Care Med. 2016 Dec;42(12):1935-1947. doi: 10.1007/s00134-015-4134-1. Epub 2016 Jan 29. PubMed 26825952 ↗
  • Arango-Granados MC, Zarama Cordoba V, Castro Llanos AM, Bustamante Cristancho LA. Evaluation of end-tidal carbon dioxide gradient as a predictor of volume responsiveness in spontaneously breathing healthy adults. Intensive Care Med Exp. 2018 Jul 30;6(1):21. doi: 10.1186/s40635-018-0187-0. PubMed 30062599 ↗
  • Toupin F, Clairoux A, Deschamps A, Lebon JS, Lamarche Y, Lambert J, Fortier A, Denault AY. Assessment of fluid responsiveness with end-tidal carbon dioxide using a simplified passive leg raising maneuver: a prospective observational study. Can J Anaesth. 2016 Sep;63(9):1033-41. doi: 10.1007/s12630-016-0677-z. Epub 2016 Jun 15. PubMed 27307176 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 25, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05557461
Lead sponsor
Bozyaka Training and Research Hospital
Responsible party
hüseyin özkarakaş (intensive care specialist Medical Doctor, Bozyaka Training and Research Hospital) — Principal investigator
First posted
Sep 28, 2022
Start date
Sep 20, 2022
Primary completion
Feb 27, 2023 (estimated)
Completion
Mar 30, 2023 (estimated)
Last update
Jan 25, 2023

Study contacts

Hüseyin Özkarakaş, MD
Contact
h.ozkarakas@hotmail.com
5065873420 ext. +90
Zeki T Tekgül, Assoc Prof
study chair · Izmir Bozyaka Training and Research Hospital
Özkan özmuk, MD
study chair · Izmir Bozyaka Training and Research Hospital
Çağrı Yeşilnacar, MD
study chair · Izmir Bozyaka Training and Research Hospital
Oğuz Uçar, MD
study chair · Izmir Bozyaka Training and Research Hospital
Mehmet Uğur Bilgin, MD
study chair · Izmir Bozyaka Training and Research Hospital

Oversight

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

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