Intraoperative Oxygen Concentration and Neurocognition After Cardiac Surgery
NCT ID: NCT02591589
Last Updated: 2020-09-23
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
100 participants
INTERVENTIONAL
2015-07-31
2021-03-01
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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Normoxic group
To standardize key aspects of ventilator support, tidal volume will be set to 6-8ml/kg and PEEP levels will be set to 0-5cm H2O, allowing flexibility for provider preference. For normoxic oxygenation FiO2 will be set at 0.35 (35%) ideally to maintain PaO2 above 70mmHg (or saturations greater than or equal to 92%), and titrated up if need be to prevent potentially injurious hypoxemia (saturations below 92%). During cardiopulmonary bypass, blended air/ oxygen mixture will be titrated to arterial blood gas analysis with maintenance of PaO2 between 100mmHg and 150mmHg.
Normoxic oxygenation
FiO2 set at 0.35 to maintain PaO2 \> 70 mmHg or oxygen saturation greater than or equal to 92%.
Hyperoxic group
To standardize key aspects of ventilator support, tidal volume will be set to 6-8ml/kg and PEEP levels will be set to 0-5cm H2O, allowing flexibility for provider preference. For hyperoxic oxygenation FiO2 will be set at 1.0 (100%) throughout the intraoperative period, including cardiopulmonary bypass.
Hyperoxic oxygenation
FiO2 set at 1.0 throughout the procedure
Interventions
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Normoxic oxygenation
FiO2 set at 0.35 to maintain PaO2 \> 70 mmHg or oxygen saturation greater than or equal to 92%.
Hyperoxic oxygenation
FiO2 set at 1.0 throughout the procedure
Eligibility Criteria
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Inclusion Criteria
* Undergoing elective or urgent on-pump Coronary Artery Bypass Graft (CABG) only
Exclusion Criteria
* Emergent procedure
* One-lung ventilation
* Non-English speaking
* Baseline tMoCA score \<10
* Preoperative inotrope use
* Preoperative vasopressor use
* Intra-aortic balloon counterpulsation
* Mechanical circulatory support (Intra-aortic balloon pump (IABP)/ Ventricular assisted devices (VAD)/Extracorporeal membrane oxygenation (ECMO))
* Active cardiac ischemia
* Acute decompensated arrhythmia
* O2 sat \< 90% on supplemental oxygen
* Use of continuous vasopressor or inotrope infusion medications
* Significant physician or nurse concern
Cessation Criteria
* Development of significant intraoperative hemodynamic compromise as a result of cardiac surgery
* Oxygen desaturation \<90% for \> 3 min
* Significant physician or nurse concern
65 Years
ALL
No
Sponsors
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Beth Israel Deaconess Medical Center
OTHER
Responsible Party
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Shahzad Shaefi
Anesthesiologist
Principal Investigators
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Shahzad Shaefi, MD
Role: PRINCIPAL_INVESTIGATOR
Beth Israel Deaconess Medical Center
Locations
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Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States
Countries
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References
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Kilgannon JH, Jones AE, Parrillo JE, Dellinger RP, Milcarek B, Hunter K, Shapiro NI, Trzeciak S; Emergency Medicine Shock Research Network (EMShockNet) Investigators. Relationship between supranormal oxygen tension and outcome after resuscitation from cardiac arrest. Circulation. 2011 Jun 14;123(23):2717-22. doi: 10.1161/CIRCULATIONAHA.110.001016. Epub 2011 May 23.
Kilgannon JH, Jones AE, Shapiro NI, Angelos MG, Milcarek B, Hunter K, Parrillo JE, Trzeciak S; Emergency Medicine Shock Research Network (EMShockNet) Investigators. Association between arterial hyperoxia following resuscitation from cardiac arrest and in-hospital mortality. JAMA. 2010 Jun 2;303(21):2165-71. doi: 10.1001/jama.2010.707.
Bellomo R, Bailey M, Eastwood GM, Nichol A, Pilcher D, Hart GK, Reade MC, Egi M, Cooper DJ; Study of Oxygen in Critical Care (SOCC) Group. Arterial hyperoxia and in-hospital mortality after resuscitation from cardiac arrest. Crit Care. 2011;15(2):R90. doi: 10.1186/cc10090. Epub 2011 Mar 8.
Trzeciak S, Jones AE, Kilgannon JH, Milcarek B, Hunter K, Shapiro NI, Hollenberg SM, Dellinger P, Parrillo JE. Significance of arterial hypotension after resuscitation from cardiac arrest. Crit Care Med. 2009 Nov;37(11):2895-903; quiz 2904. doi: 10.1097/ccm.0b013e3181b01d8c.
Eastwood G, Bellomo R, Bailey M, Taori G, Pilcher D, Young P, Beasley R. Arterial oxygen tension and mortality in mechanically ventilated patients. Intensive Care Med. 2012 Jan;38(1):91-8. doi: 10.1007/s00134-011-2419-6. Epub 2011 Nov 30.
Pilcher J, Weatherall M, Shirtcliffe P, Bellomo R, Young P, Beasley R. The effect of hyperoxia following cardiac arrest - A systematic review and meta-analysis of animal trials. Resuscitation. 2012 Apr;83(4):417-22. doi: 10.1016/j.resuscitation.2011.12.021. Epub 2012 Jan 5.
Neumar RW. Optimal oxygenation during and after cardiopulmonary resuscitation. Curr Opin Crit Care. 2011 Jun;17(3):236-40. doi: 10.1097/MCC.0b013e3283454c8c.
Janz DR, Hollenbeck RD, Pollock JS, McPherson JA, Rice TW. Hyperoxia is associated with increased mortality in patients treated with mild therapeutic hypothermia after sudden cardiac arrest. Crit Care Med. 2012 Dec;40(12):3135-9. doi: 10.1097/CCM.0b013e3182656976.
O'Driscoll BR, Howard LS. How to assess the dangers of hyperoxemia: methodological issues. Crit Care. 2011;15(3):435; author reply 435. doi: 10.1186/cc10272. Epub 2011 Jun 30. No abstract available.
de Jonge E, Peelen L, Keijzers PJ, Joore H, de Lange D, van der Voort PH, Bosman RJ, de Waal RA, Wesselink R, de Keizer NF. Association between administered oxygen, arterial partial oxygen pressure and mortality in mechanically ventilated intensive care unit patients. Crit Care. 2008;12(6):R156. doi: 10.1186/cc7150. Epub 2008 Dec 10.
Saczynski JS, Marcantonio ER, Quach L, Fong TG, Gross A, Inouye SK, Jones RN. Cognitive trajectories after postoperative delirium. N Engl J Med. 2012 Jul 5;367(1):30-9. doi: 10.1056/NEJMoa1112923.
Laffey JG, Talmor D. Predicting the development of acute respiratory distress syndrome: searching for the "Troponin of ARDS". Am J Respir Crit Care Med. 2013 Apr 1;187(7):671-2. doi: 10.1164/rccm.201301-0168ed. No abstract available.
Newman MF, Kirchner JL, Phillips-Bute B, Gaver V, Grocott H, Jones RH, Mark DB, Reves JG, Blumenthal JA; Neurological Outcome Research Group and the Cardiothoracic Anesthesiology Research Endeavors Investigators. Longitudinal assessment of neurocognitive function after coronary-artery bypass surgery. N Engl J Med. 2001 Feb 8;344(6):395-402. doi: 10.1056/NEJM200102083440601.
Wiredu K, Mueller A, McKay TB, Behera A, Shaefi S, Akeju O. Sex Differences in the Incidence of Postoperative Delirium after Cardiac Surgery: A Pooled Analyses of Clinical Trials. Anesthesiology. 2023 Oct 1;139(4):540-542. doi: 10.1097/ALN.0000000000004656. No abstract available.
Shaefi S, Marcantonio ER, Mueller A, Banner-Goodspeed V, Robson SC, Spear K, Otterbein LE, O'Gara BP, Talmor DS, Subramaniam B. Intraoperative oxygen concentration and neurocognition after cardiac surgery: study protocol for a randomized controlled trial. Trials. 2017 Dec 19;18(1):600. doi: 10.1186/s13063-017-2337-1.
Other Identifiers
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2014P000398
Identifier Type: -
Identifier Source: org_study_id
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