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CompletedNCT06993467OXYINFLAMMUpdated May 28, 2025

Oxygen Delivery During Cardiopulmonary Bypass And Inflammatory Reaction After Cardiac Surgery

An observational study in Cardiopulmonary Bypass, Cardiac Surgery and Systemic Inflammatory Response Syndrome (SIRS), sponsored by Azienda Ospedaliero, Universitaria Ospedali Riuniti. Completed at 2 sites in Italy. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2025-05-28.

Sponsored by Azienda Ospedaliero, Universitaria Ospedali Riuniti · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
908
Ages
18 Years to 90 Years
Sex
All
01

Study summary

Cardiac surgery, especially when involving cardiopulmonary bypass (CPB), has long been associated with a systemic inflammatory response that can lead to a range of complications, from mild symptoms to severe organ dysfunction, and mortality. The exact mechanisms behind this response remain a topic of extensive research, but it's clear that the body's reaction to the extracorporeal circulation, combined with surgical trauma, plays a significant role. Factors such as genomics, age, specific preoperative conditions, and the duration of operations have been associated with significant clinical responses.

A pivotal insight into this response comes from recent genome-wide transcriptional analyses. Perioperative ischemia and ischemia-reperfusion injury (IRI) have been suggested as hub-nodes in a hierarchic structure evaluating the response to cardiac surgery. This suggests that IRI isn't just a side effect of the surgery but might be a central player in the body's inflammatory response. The role of perioperative ischemia and its potential as a significant contributor to the postoperative inflammatory response cannot be understated. This study aims to delve deeper into the role of oxygen delivery and its implications in the systemic inflammatory response post- cardiac surgery.

02

Conditions studied

  • Cardiopulmonary Bypass
  • Cardiac Surgery
  • Systemic Inflammatory Response Syndrome (SIRS)

Keywords

  • cardiopulmonary bypass
  • oxygen delivery
  • systemic inflammatory reaction syndrome
  • cardiac surgery
03

In context

Systemic Inflammatory Response Syndrome

195 studies on the registry are indexed under Systemic Inflammatory Response Syndrome; 24 are open to participants now.

This study's enrollment of 908 is above the median of 134 across 94 observational studies indexed under Systemic Inflammatory Response Syndrome.

Browse Systemic Inflammatory Response Syndrome studies →

Lead sponsor

Azienda Ospedaliero, Universitaria Ospedali Riuniti is the lead sponsor of 8 studies on the registry; 4 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

Adult cardiac surgery patients undergoing elective cardiopulmonary bypass-assisted procedures

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

  • Adult patients (18-90 years)
  • Elective surgery
  • CPB-assisted

Exclusion criteria

Exclusion Criteria:

  • Age \< 18 or > 90 years
  • Infective endocarditis
  • Hypothermia during surgery (\<34°C)
  • Emergency surgery
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
908 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. SIRS

    Systemic Inflammatory Reaction Syndrome (SIRS) as per the 1991 American College of Chest Physicians/Society of Critical Care Medicine criteria

    Time frame: 12 hours after surgery

Secondary outcomes

  1. Composite outcome

    Composite outcome comprising death, TIA/stroke, renal replacement therapy, bleeding, mechanical circulatory support, or ICU stay \>96 hours

    Time frame: Up to 30 days

07

Study locations

2 sites
  • Anthea Hospital
    Bari, Italia, Italy
  • Santa Maria Hospital, GVM Care & Research
    Bari, Italia, Italy
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2023 to primary completion in Dec 2024, 14 months.

Of 42 non-industry observational studies under Systemic Inflammatory Response Syndrome, half reached primary completion within 31 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 55. This study's 14 months is below that.

Counting every sponsor, half of 47 studies reached it within 31 months; a quarter within 14 and three quarters within 55.

How these figures are worked out, and which studies are left out of them.

Registered
May 12, 2025
First posted
May 28, 2025
StartActual
Oct 30, 2023
Primary completionActual
Dec 31, 2024
CompletionActual
Jan 31, 2025
Last update
May 28, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on May 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06993467
Lead sponsor
Azienda Ospedaliero, Universitaria Ospedali Riuniti
Responsible party
Enrico Squiccimarro (Dr, Azienda Ospedaliero, Universitaria Ospedali Riuniti) — Principal investigator
First posted
May 28, 2025
Start date
Oct 30, 2023
Primary completion
Dec 31, 2024
Completion
Jan 31, 2025
Last update
May 28, 2025

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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