Respiratory FailureCSI-RICUNCT03897920
Doppler Ultrasound Renal Arterial Resistive Indices As Predictor Of Multiorgan Failure In Patients With Acute Hypoxic Respiratory Failure Admitted To Respiratory Intensive Care Unit (Cryptic Shock Index- RICU)
An observational study of Respiratory Failure and Multi Organ Failure, run by University of Modena and Reggio Emilia.
Trial summary
Patients with de novo respiratory failure undergoing non invasive ventilation (NIV) present failure rates of mechanical ventilation ranging from 4 to 50%. Causes for NIV treatment failure are various but the onset of septic shock and subsequent multi-organ failure (MOF) seem play a critical role. Read more about this study
- Who is it for?
- Ages 18 to 85 years
- Conditions the study is for
- Respiratory Failure, Multi Organ Failure
- What is being tested?
- Doppler ultrasound assessment of renal arteria resistive index
- How many people
- 30 participants
- Where
- No sites listed yet
- Study dates
- 1 Jan 2023to 1 Jan 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 85 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: patients with de novo respiratory failure admitted to the respiratory intensive care unit of the university hospital of Modena without any other organ failure
Who may be able to join
- patients with de novo respiratory failure admitted to the respiratory intensive care unit of the university hospital of Modena
Who cannot join
- age lower than 18 or higher than 85
- presence of organ failure apart form lung failure at the time of admission in the respiratory intensive care unit
- pregnancy
- difficult or unreliable ultrasound window for renal arterial resistive index assessment
Trial locations and contacts
No sites are listed yet.
About this study
Official title: Doppler Ultrasound Renal Arterial Resistive Indices As Predictor Of Multiorgan Failure In Patients With Acute Hypoxic Respiratory Failure Admitted To Respiratory Intensive Care Unit (Cryptic Shock Index CSI- RICU)
Patients with de novo respiratory failure undergoing non invasive ventilation (NIV) present failure rates of mechanical ventilation ranging from 4 to 50%. Causes for NIV treatment failure are various but the onset of septic shock and subsequent multi-organ failure (MOF) seem play a critical role. Recent data show that the 37% of patients admitted to intensive care unit for de novo respiratory failure without any other organ failure experience multiple organ failure within the first days from admission. Early identification of hypoxic patients at major risk for MOF seems critical. Physiological studies have demonstrated that the underlying mechanisms for organ damage preceding MOF are those involved in the oxygen consumption (VO2)/oxygen delivery (DO2) mismatch. Doppler ultrasound indices of renal arteria resistance are directly correlated tot he VO2/DO2 mismatch. With this study we aim at investigating the correlation between Doppler ultrasound indices of renal arteria resistance in patients with de novo respiratory failure admitted to ICU and the onset of MOF within the first 7 days form admission.
- Conditions
- Respiratory Failure, Multi Organ Failure
- Being tested
- Doppler ultrasound assessment of renal arteria resistive index
- Medical subject headings
- Respiratory Insufficiency, Multiple Organ Failure
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Doppler ultrasound assessment of renal arteria resistive indexOther
A high frequency probe will be used together with the use of color or power Doppler to help vessel localization. As resistance to blood flow progressively increases from the hilar arteries toward the more peripheral parenchymal vessels, renal arteria resistive index (RRI) will be done at the level of the arcuate or interlobar arteries, adjacent to medullary pyramids. Measurements will be repeated in different parts of both organs (superior, median, and lower) when at least three reproducible waveforms have been obtained. An RRI will be calculated with the following formula: (peak systolic velocity - end diastolic velocity)/peak systolic velocity, and the mean value of three measurements at each kidney is usually considered. An RRI value 0.60 ± 0.01 (mean ± SD) is usually taken as normal with a value of 0.70 being considered the upper normal threshold
What is being measured
The primary outcome is the main question the study is designed to answer.
Onset of shock
Shock will be clinically identified by a vasopressor requirement to maintain a mean arterial pressure of 65 mm Hg or greater and serum lactate level greater than 2 mmol/L (>18 mg/dL) in the absence of hypovolemia
Measured: 7 days from Respiratory Intensive Care Unit admission
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Apr 2019
- Study start1 Jan 2023 (estimated)
- Primary completion1 Jan 2024 (estimated)
- Study completion1 Jan 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Respiratory FailureStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Modena and Reggio Emilia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alessandro Marchioni, University of Modena and Reggio Emilia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03897920
- Sponsor's protocol ID
- UModenaReggio 6
- Acronym
- CSI-RICU
- Status last verified
- Mar 2022
- First submitted
- 29 Mar 2019
- Last updated
- 23 Mar 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 23 Mar 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Doppler Ultrasound Renal Arterial Resistive Indices As Predictor Of Multiorgan Failure In Patients With Acute Hypoxic Respiratory Failure Admitted To Respiratory Intensive Care Unit (Cryptic Shock Index CSI- RICU)
- ClinicalTrials.gov ID
- NCT03897920
- Acronym / sponsor ID
- CSI-RICU / UModenaReggio 6
- Conditions
- Respiratory Failure, Multi Organ Failure
- Study type
- Observational
- Recruitment status
- Unknown status
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- University of Modena and Reggio EmiliaUniversity, hospital or other
- Study start
- 1 Jan 2023 (estimated)
- Primary completion
- 1 Jan 2024 (estimated)
- Study completion
- 1 Jan 2025 (estimated)
- First posted
- 1 Apr 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Patients with de novo respiratory failure undergoing non invasive ventilation (NIV) present failure rates of mechanical ventilation ranging from 4 to 50%. Causes for NIV treatment failure are various but the onset of septic shock and subsequent multi-organ failure (MOF) seem play a critical role. Recent data show that the 37% of patients admitted to intensive care unit for de novo respiratory failure without any other organ failure experience multiple organ failure within the first days from admission. Early identification of hypoxic patients at major risk for MOF seems critical. Physiological studies have demonstrated that the underlying mechanisms for organ damage preceding MOF are those involved in the oxygen consumption (VO2)/oxygen delivery (DO2) mismatch. Doppler ultrasound indices of renal arteria resistance are directly correlated tot he VO2/DO2 mismatch. With this study we aim at investigating the correlation between Doppler ultrasound indices of renal arteria resistance in patients with de novo respiratory failure admitted to ICU and the onset of MOF within the first 7 days form admission.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 to 85 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- patients with de novo respiratory failure admitted to the respiratory intensive care unit of the university hospital of Modena without any other organ failure
Key inclusion criteria (1 listed)
- patients with de novo respiratory failure admitted to the respiratory intensive care unit of the university hospital of Modena
Key exclusion criteria (4 listed)
- age lower than 18 or higher than 85
- presence of organ failure apart form lung failure at the time of admission in the respiratory intensive care unit
- pregnancy
- difficult or unreliable ultrasound window for renal arterial resistive index assessment
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Doppler ultrasound assessment of renal arteria resistive indexA high frequency probe will be used together with the use of color or power Doppler to help vessel localization. As resistance to blood flow progressively increases from the hilar arteries toward the more peripheral parenchymal vessels, renal arteria resistive index (RRI) will be done at the level of the arcuate or interlobar arteries, adjacent to medullary pyramids. Measurements will be repeated in different parts of both organs (superior, median, and lower) when at least three reproducible waveforms have been obtained. An RRI will be calculated with the following formula: (peak systolic velocity - end diastolic velocity)/peak systolic velocity, and the mean value of three measurements at each kidney is usually considered. An RRI value 0.60 ± 0.01 (mean ± SD) is usually taken as normal with a value of 0.70 being considered the upper normal threshold | Other | – |
Primary outcome
Onset of shock
Time frame: 7 days from Respiratory Intensive Care Unit admission
Shock will be clinically identified by a vasopressor requirement to maintain a mean arterial pressure of 65 mm Hg or greater and serum lactate level greater than 2 mmol/L (>18 mg/dL) in the absence of hypovolemia
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 23 Mar 2022.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Questions about this trial
What is this clinical trial studying?
An observational study of Respiratory Failure and Multi Organ Failure, run by University of Modena and Reggio Emilia.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 23 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Alessandro Marchioni, MD (00390594225859, marchioni.alessandro@unimore.it), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Onset of shock (time frame: 7 days from Respiratory Intensive Care Unit admission). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Mar 2022.