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Study aim
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modify oxygenation of the brain during cardiac surgery for prevention of post operative neurological side effects.
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Design
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This prospective, randomized study will be composed of 200 consecutive patients who underwent a cardiac surgery with cardio pulmonary bypass( CPB) pump. patients are randomly assigned to two groups using random numbers table . monitoring of Cerebral oximetry (rScO2) will be performed on case group and others (control group) without any monitoring of cerebral oxygenation. If the absolute threshold rScO2 <50%, interventions to maintain regional rScO2 at, or above, the baseline value will be performed. For the control group, rScO2 will not be recorded and no specific treatments will be employed.
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Settings and conduct
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This prospective, randomized study will be composed of 200 consecutive patients who underwent a cardiac surgery with cardio pulmonary bypass( CPB) pump.Ethics committee approval will be received along with the informed consent of each patient. patients are randomly assigned to two groups using random numbers table .monitoring of Cerebral oximetry (rScO2) will be performed on case group and others (control group) without any monitoring of cerebral oxygenation. If the absolute threshold rScO2 <50%, interventions to maintain regional rScO2 at, or above, the baseline value will be performed including increasing Paco2 to 45mmHg, increasing blood pressure by increasing blood flow pump, use of inotropes, lower oxygen consumption of the brain using barbiturates and repositioning the patient’s head. percentile of desaturation below 50% and seconds of desaturation were recorded. For the control group, rScO2 will not be recorded and no specific treatments will be employed. any neurological side effects such as hallucinations, delirium, stroke and so on up to three days after surgery will be recorded. length of stay in ICU will be recorded.
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Participants/Inclusion and exclusion criteria
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This study will be composed of 200 consecutive patients who underwent a cardiac surgery with CPB pump. Patients with history of psychological disorder as well as patients who were taking psychiatric drugs will be excluded. All of the participants will be elective subjects; emergent cases will not be included.
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Intervention groups
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monitoring of Cerebral oximetry (rScO2) will be performed on case group and others (control group) without any monitoring of cerebral oxygenation. If the absolute threshold rScO2 <50%, interventions to maintain regional rScO2 at, or above, the baseline value will be performed including increasing Paco2 to 45mmHg, increasing blood pressure by increasing blood flow pump, use of inotropes, lower oxygen consumption of the brain using barbiturates and repositioning the patient’s head.
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Main outcome variables
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any neurological side effects such as hallucinations, delirium, stroke and so on up to three days after surgery will be recorded.