[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"health-study-detail:100595825":3},{"organization":4,"armGroups":7,"interventions":16,"overallOfficials":10,"centralContacts":29,"locations":35,"responsibleParty":60,"collaborators":10,"id":64,"slug":65,"hasResults":66,"nctId":67,"briefTitle":68,"officialTitle":68,"acronym":10,"eligibilityCriteria":69,"healthyVolunteers":66,"sex":70,"minAge":71,"maxAge":10,"enrollmentInfo":72,"targetDuration":10,"studyType":75,"phases":10,"briefSummary":76,"conditions":77,"keywords":10,"overallStatus":37,"whyStopped":10,"lastUpdateSubmitDate":82,"lastUpdatePostDateStruct":83,"startDateStruct":86,"completionDateStruct":88,"leadSponsor":90,"locationsCount":91},{"fullName":5,"class":6},"Tanta University","OTHER",[8],{"label":9,"type":10,"description":11,"interventionNames":12},"Study group",null,"Patients undergoing elective on-pump cardiac surgery",[13,14,15],"Other: Renal resistive index","Other: Renal Artery Pulsatility Index","Other: Urinary oxygen tension (PUO2)",[17,21,25],{"type":6,"name":18,"description":19,"armGroupLabels":20,"otherNames":10},"Renal resistive index","It will be measured with ultrasound-Doppler using an abdominal curvilinear probe ultrasonography by two independent, trained sonographers (who will not be involved in patient care). After visualizing the kidney in ultrasound mode and checking for renal abnormalities, an arcuate or inter-lobar artery will be localized, and three successive Doppler measurements at different positions in the kidney (high, middle, and low) will be performed. The average value for each kidney will be taken.\n\nThe renal resistive index will be calculated as follows:\n\n(systolic peak flow velocity - diastolic minimum flow velocity)\u002Fsystolic peak flow velocity",[9],{"type":6,"name":22,"description":23,"armGroupLabels":24,"otherNames":10},"Renal Artery Pulsatility Index","It will be measured using an abdominal curvilinear probe ultrasonography by two independent, trained sonographers (who will not be involved in patient care). After visualizing the kidney, the interlobular artery will be located using color Doppler mode, and the velocity of the interlobular arteries will be assessed in one or two kidneys.\n\nThe Renal Artery Pulsatility Index (RAPI) will be calculated as follows:\n\nRAPI = \\[(peak systolic velocity) - (end diastolic velocity)\\] \u002Faverage velocity",[9],{"type":6,"name":26,"description":27,"armGroupLabels":28,"otherNames":10},"Urinary oxygen tension (PUO2)","Urinary oxygen tension (PUO2) will be measured preoperatively (baseline), postoperatively just after intensive care unit admission, 12 hours after surgery, and then once daily for 7 days.",[9],[30],{"name":31,"role":32,"phone":33,"phoneExt":10,"email":34},"Amany M Badr, Master","CONTACT","00201018038038","amany.badr@med.tanta.edu.eg",[36],{"facility":5,"status":37,"city":38,"state":39,"zip":40,"country":41,"countryCode":42,"cosmosGeoPoint":43,"geoPoint":48,"contacts":49},"RECRUITING","Tanta","El-Gharbia","31527","Egypt","EG",{"type":44,"coordinates":45},"Point",[46,47],31.00192,30.78847,{"lat":47,"lon":46},[50,51,54,56,58],{"name":31,"role":32,"phone":33,"phoneExt":10,"email":34},{"name":52,"role":53,"phone":10,"phoneExt":10,"email":10},"Ayman A Yousef, MD","SUB_INVESTIGATOR",{"name":55,"role":53,"phone":10,"phoneExt":10,"email":10},"Sabry M Amin, MD",{"name":57,"role":53,"phone":10,"phoneExt":10,"email":10},"Rabab M Mohammed, MD",{"name":59,"role":53,"phone":10,"phoneExt":10,"email":10},"Aliaa M Belal, MD",{"type":61,"investigatorFullName":62,"investigatorTitle":63,"investigatorAffiliation":5,"oldNameTitle":10,"oldOrganization":10},"PRINCIPAL_INVESTIGATOR","Amany Mohamed Badr Ali Badr","Assistant Lecturer of Anesthesiology, Surgical Intensive Care and Pain Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt","100595825","the-predictive-value-of-doppler-based-renal-ultrasound-and-urinary-oxygen-tension-for-prediction-of-acute-kidney-injury-after-open-heart-surgery-100595825",false,"NCT07037485","The Predictive Value of Doppler Based Renal Ultrasound and Urinary Oxygen Tension for Prediction of Acute Kidney Injury After Open Heart Surgery","Inclusion Criteria:\n\n* Age above 21 years.\n* Both sexes.\n* Undergoing elective on-pump cardiac surgery.\n\nExclusion Criteria:\n\n* Patients with chronic kidney disease.\n* Patients with any renal pathology or anatomic kidney abnormalities.\n* Patients on renal replacement therapy.","ALL","21 Years",{"count":73,"type":74},50,"ESTIMATED","OBSERVATIONAL","This study aims to investigate the predictive value of Doppler-based renal ultrasound and urinary oxygen tension in the development of acute kidney injury after cardiac surgery.",[78,79,80,81],"Doppler-Based Renal Ultrasound","Urinary Oxygen Tension","Acute Kidney Injury","Open Heart Surgery","2025-06-17",{"date":84,"type":85},"2025-06-25","ACTUAL",{"date":87,"type":85},"2024-10-01",{"date":89,"type":74},"2026-09-01",{"name":5,"class":6},1]