Evaluating oxygen delivery's impact on kidney and heart health after surgery

El DORADO STUDY (Evaluation of Delivery of Oxygen on Renal, Arrhythmia and Delirium Outcomes Study)

Observational National University Hospital, Singapore · NCT04895384

This study is testing how delivering oxygen in a certain way during heart surgery can help prevent kidney problems and other complications in patients after the operation.

Quick facts

Study typeObservational
Enrollment600 (estimated)
Ages21 Years to 80 Years
SexAll
SponsorNational University Hospital, Singapore Academic / other
Locations2 sites (Singapore and 1 other locations)
Trial IDNCT04895384 on ClinicalTrials.gov

What this trial studies

This observational study focuses on the noninvasive delivery of oxygen and hemodynamic indices to predict postoperative outcomes in patients undergoing cardiac surgery. It aims to assess the effects of these parameters on the development of postoperative acute kidney injury, neurocognitive disorders, and atrial fibrillation. The study will also utilize machine learning algorithms to analyze continuous hemodynamic and oxygen delivery data in real-time, guiding perioperative treatment decisions. By developing predictive indices, the research seeks to improve patient outcomes in the high-risk surgical population.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 21 years old who are scheduled for elective cardiac surgeries such as valve replacements or CABG.

Not a fit: Patients undergoing emergency cardiac procedures, those on intra-aortic balloon pumps postoperatively, or pregnant women may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved prediction and management of postoperative complications, enhancing recovery and long-term health for cardiac surgery patients.

How similar studies have performed: While the approach of using noninvasive oxygen delivery and hemodynamic monitoring is innovative, similar studies have shown promise in improving postoperative outcomes, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Undergoing elective cardiac surgery such as valve replacements or CABG
* Age above 21 years old
* Ability to provide informed consent

Exclusion Criteria:

* Emergency cardiac cases
* Patients on IABP postoperatively
* Patients who decline to participate in this study
* Pregnant women

Where this trial is running

Singapore and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions AKINeurocognitive DisordersAtrial FibrillationPostoperativePerioperative
Last reviewed 2026-06-13 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.