Clinical trial Recruiting at 1 site Observational Ages 18 and up

How giving fluids changes tiny blood flow in critically ill patients with venous congestion.

Official title: Evaluation of the Microcirculatory Response to Fluids in Critically Ill Patients With Venous Congestion: A Prospective Observational Study

Run by Università Politecnica delle Marche · NCT07499401 · Data updated 2026-11-12

This project will see if giving a fluid bolus makes tiny blood flow worse in ICU patients who have venous congestion compared with similar patients without congestion.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorUniversità Politecnica delle Marche
Academic / other
Locations1 site (Ancona, Italy)
StatusRecruiting
StartedDecember 15, 2024
Main results expectedJune 2026
Study endsJune 2026
Registry record updatedApril 2, 2026
Trial IDNCT07499401 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Critically ill ICU patients with invasive or minimally invasive hemodynamic monitoring who are undergoing a clinician-ordered fluid challenge are the intended participants.

Probably not a fit

Patients who are pregnant, those who cannot have oral-cavity or bedside microcirculatory measurements (for example due to facial trauma), or those without appropriate hemodynamic monitoring are unlikely to be eligible or benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a prospective observational study enrolling critically ill patients in the intensive care unit who have invasive or minimally invasive hemodynamic monitoring. Patients who receive a clinician-ordered fluid challenge will have microcirculatory measurements taken before and after the fluid is given. Investigators will compare microcirculatory changes between patients with clinical signs of venous congestion and those without. The aim is to determine whether fluid administration worsens microvascular perfusion in patients with venous congestion.

Why it matters

Potential benefit: If the study shows harm from fluids in congested patients, it could help clinicians avoid fluid strategies that worsen tissue perfusion.

How similar studies have gone: Previous work has looked at how fluids affect microcirculation in critically ill patients, but the specific effect in patients with venous congestion is less well characterized.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Critically ill patients admitted to the intensive care unit
* Invasive or minimally invasive hemodynamic monitoring

Exclusion Criteria:

* Suspected or confirmed pregnancy
* Inability to access the oral cavity (e.g., facial trauma, oral bleeding)

Where it's running

  • AOU delle Marche
    Ancona, Italy, Italy
    Recruiting

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.