Monitoring microvascular function in critically ill patients using near-infrared spectroscopy
Official title: Microvascular Monitoring in Circulatory Shock and Sepsis (MiMICSS): Prospective Observational Cohort Study
Run by University of Manitoba · NCT05985525 · Data updated 2026-11-12
This study is trying to see if a special light technology can safely check blood flow in the tiny blood vessels of critically ill patients in the ICU to help understand their health better.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 100 (estimated) |
| Sponsor | University of Manitoba Academic / other |
| Locations | 1 site (Winnipeg, Manitoba) |
| Status | Recruiting |
| Started | May 27, 2022 |
| Main results expected | May 31, 2026 |
| Study ends | May 31, 2026 |
| Registry record updated | August 24, 2025 |
| Trial ID | NCT05985525 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates for this study are critically ill patients who are admitted to the ICU and receiving invasive mechanical ventilation.
✕Probably not a fit
Patients with a body mass index over 40 or those who are imminently dying may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study investigates the feasibility of using near-infrared spectroscopy (NIRS) to monitor microvascular function in critically ill patients admitted to the ICU. It involves the non-invasive application of NIRS monitors to assess skeletal muscle and brain microvascular metrics throughout the patient's ICU stay. Continuous vital signs and clinical data will be collected to explore the relationship between these metrics and ICU mortality, aiming to enhance understanding of microvascular health in sepsis and shock.
Why it matters
Potential benefit: If successful, this study could lead to improved monitoring of microvascular function, potentially enhancing patient outcomes in critical illness.
How similar studies have gone: While the use of NIRS in monitoring microvascular function is promising, this specific approach in critically ill patients is still being explored and may not have extensive prior success.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Admitted to ICU * Receiving invasive mechanical ventilation Exclusion Criteria: * Body Mass Index \>40 * More than 24 hours has elapsed since ICU admission * Death is deemed to be imminent and inevitable during the next 24 hours * Known allergy to the textile components of the device * Significant clinical jaundice, ecchymosis * COVID positive microbiological result * The treating clinician believes that participation in the domain would not be in the best interests of the patient * Consent declined from patient or authorized third party
Where it's running
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Health Sciences Centre Winnipeg
Winnipeg, Manitoba, Canada Recruiting
Study contacts
- Principal investigator: Asher Mendelson, MD, PhD — University of Manitoba
- Study coordinator: Asher Mendelson, MD, PhD
- Email: asher.mendelson@umanitoba.ca
- Phone: 2047871634
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.