Clinical trial

Risk of Oxygen During Cardiac Surgery (ROCS) Trial

Name
131128
Description
The investigators will recruit and randomize 200 elective cardiac surgery patients to receive physiologic oxygenation (normoxia) or hyper-oxygenation (hyperoxia) during surgery to test the hypothesis that intraoperative physiologic oxygenation decreases the generation of reactive oxygen species, oxidative damage, and postoperative organ injury compared to hyper-oxygenation.
Trial arms
Trial start
2016-04-05
Estimated PCD
2020-10-08
Trial end
2021-01-08
Status
Completed
Phase
Early phase I
Treatment
Oxygen - normoxia
Titration of FIO2 to maintain normal hemoglobin oxygen saturation (95-97%)
Arms:
Normoxia
Other names:
oxygen
Oxygen - hyperoxia
Administration of 1.0 FIO2 during ventilation and 0.8 or above during cardiopulmonary bypass
Arms:
Hyperoxia
Other names:
oxygen
Size
213
Primary endpoint
Intraoperative Systemic Oxidative Damage
separation from cardiopulmonary bypass or completion of off-pump coronary artery bypass grafting (approximately 3-5 hours into surgery and intervention)
Acute Kidney Injury
baseline to postoperative day 2
Eligibility criteria
Inclusion Criteria: * Open-heart cardiac surgery, defined as surgery on the heart or aorta that requires sternotomy or thoracotomy. Exclusion Criteria: * Current acute coronary syndrome (defined as ST elevation myocardial infarction or non-ST elevation myocardial infarction (troponin leak within 72 hours of surgery or consent +/- EKG changes consistent with myocardial ischemia)). * Home supplemental oxygen use. * Preoperative supplemental oxygen requirement to maintain arterial O2 sat of 92%. * Right to left intracardiac shunt including atrial septal defect and ventricular septal defect with Cor Pulmonale. * Carotid stenosis defined as \>50% stenosis. * Cardiac surgery that requires intraoperative circulatory arrest, such as aortic arch replacement. * Current use of hemo- or peritoneal dialysis. * Pregnancy
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE2', 'PHASE3'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'PREVENTION', 'maskingInfo': {'masking': 'DOUBLE', 'whoMasked': ['PARTICIPANT', 'OUTCOMES_ASSESSOR']}}, 'enrollmentInfo': {'count': 213, 'type': 'ACTUAL'}}
Updated at
2024-02-01

1 organization

1 product

1 indication

Product
Oxygen
Indication
Cardiac surgery