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Enrolling by invitationNCT07373717Updated Jan 28, 2026

Consistency of Fluid Tolerance Evaluation Methods and Their Correlation With Clinical Outcomes in Patients With Shock

An observational study in Shock, sponsored by Southeast University, China. Enrolling by invitation at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-01-28.

Sponsored by Southeast University, China · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
45
Ages
18 Years and older
Sex
All
01

Study summary

This study aims to explore the feasibility and scientific validity of carotid-jugular Doppler in evaluating volume tolerance in shock patients (with the VExUS score as an important reference standard), and to conduct an in-depth analysis of the correlation between its monitoring indicators and patient prognosis.The primary endpoint is comparison of the agreement between hands-free carotid-jugular Doppler and the VExUS score in evaluating volume tolerance.The secondary endpoint is correlation between volume tolerance assessed by hands-free carotid-jugular Doppler and the clinical outcomes of shock patients.

02

Conditions studied

  • Shock

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Keywords

  • VExUS
  • Fluid Resuscitation
  • Fluid Responsiveness
  • Fluid Overload
  • Shock
03

In context

Shock

487 studies on the registry are indexed under Shock; 107 are open to participants now.

This study's planned enrollment of 45 is below the median of 100 across 247 observational studies indexed under Shock.

Browse Shock studies →

Lead sponsor

Southeast University, China is the lead sponsor of 168 studies on the registry; 45 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
Non-probability sample

Study population

Patients admitted to the ICU

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Shock patients admitted to the ICU are defined as those with persistent hypotension (systolic blood pressure \< 90 mmHg or a decrease of ≥ 40 mmHg from the baseline blood pressure) accompanied by signs of tissue hypoperfusion.
  • Age ≥ 18 years old.
  • The patient or their legal representatives signed the form.

Exclusion criteria

Exclusion Criteria:

  • Patients with severe pulmonary circulatory disorders such as severe pulmonary hypertension and acute pulmonary embolism.
  • Patients with right ventricular myocardial infarction or severe tricuspid regurgitation.
  • Patients with severe neck trauma or deformity that affects Doppler examination of cervical arteries and veins, or those with anatomical preventing evaluation of at least one cervical artery or vein.
  • Pregnant or lactating women.
  • Patients with diseases that may interfere with abdominal ultrasound examination.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
45 participants (estimated)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Hands-free Carotid Artery and Vein Doppler Parameters

    Elevate the patient's upper body to 45°, keep the legs flat, place the long axis of the probe perpendicular to the carotid vessels (with the probe height not exceeding the upper edge of the thyroid cartilage), locate the optimal signals of the common carotid artery and internal jugular vein waveforms, and then fix the probe.

    Time frame: Time of shock in ICU within 3 days

Secondary outcomes

  1. PiCCO

    Inject cold saline through central venous catheterization, sense temperature changes via arterial catheter, and obtain hemodynamic parameters such as cardiac output by combining thermodilution and pulse contour analysis.

    Time frame: Time of shock in ICU within 3 days

  2. Venous Excess Ultrasound Score

    Evaluate the diameter, waveform, etc. of the inferior vena cava, hepatic veins, portal vein, and intrarenal veins sequentially via ultrasound, and comprehensively derive a grade ranging from 0 to 3.Grade 0: No congestion; Grade 1: Mild congestion; Grade 2: Moderate congestion; Grade 3: Severe congestion.

    Time frame: Time of shock in ICU within 3 days

  3. Bioelectrical Impedance Analysis

    Attach electrodes to the patient's limbs, input basic information, measure impedance of multiple parts with multi-frequency technology, and quickly obtain parameters such as body composition.

    Time frame: Time of shock in ICU within 3 days

  4. Duration of shock

    Time of shock in ICU within 28 days

    Time frame: Time of shock in ICU within 28 days

  5. Duration of Mechanical Ventilation

    Duration of Mechanical Ventilation During ICU Admission

    Time frame: up to 24 weeks

  6. Total Length of Hospital Stay

    Total Length of Hospital Stay

    Time frame: up to 24 weeks

  7. Length of ICU stay

    Length of ICU stay

    Time frame: up to 24 weeks

  8. mortality of 28 days

    Incidence of death during 28 days

    Time frame: Incidence of death during 28 days

  9. In-hospital Mortality

    In-hospital Mortality

    Time frame: up to 24 weeks

  10. Vasoactive Agent Dosage

    Vasoactive Agent Dosage During ICU Admission

    Time frame: up to 24 weeks

  11. Time without vasoactive agents within 28 days

    Time without vasoactive agents within 28 days

    Time frame: Time without vasoactive agents within 28 days

07

Study locations

1 site
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 28, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07373717
Responsible party
Ling Liu (Professor, Southeast University, China) — Principal investigator
First posted
Jan 28, 2026
Start date
Nov 2, 2025
Primary completion
Sep 2026 (estimated)
Completion
Mar 2027 (estimated)
Last update
Jan 28, 2026

Oversight

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

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