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Renal Resistive Index clinical trials

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NCT ID: NCT06464666 Not yet recruiting - Acute Kidney Injury Clinical Trials

Association Between Renal Resistive Index(RRI) and AKI(Acute Kidney Injury) in Cardiac Surgery Patients With Cardiopulmonary Bypass (CPB)

Start date: July 1, 2024
Phase:
Study type: Observational

AKI(Acute Kidney Injury) is a common complication after cardiac surgery which is associated with increased mortality and morbidity. The conventiional marker for detecting AKI is serum creatinine, however, which has many limits. RRI(Renal Resistive Index) is a non-invasive test measured by ultrasound and could be a useful tool to evaulate renal insult in the early phase. Early detection of renal insult and prevention of progression to AKI can contribute to reduing mortality and morbidity in cardiac surgical patients.

NCT ID: NCT06009445 Recruiting - Sepsis Clinical Trials

Renal Resistive Index as a Predictor of Acute Kidney Injury and Evaluation of Fluid Administration in Sepsis

Start date: July 1, 2023
Phase:
Study type: Observational

We aim from this study to investigate the role of renal resistance index (RRI) in evaluation of Acute kidney injury development and fluid administration in sepsis patients considering the change in RRI values over 7 days from admission as a predictor of AKI development

NCT ID: NCT05577039 Completed - Clinical trials for Chronic Kidney Disease

Preoperative RRI and Long-term Risk for CKD

Start date: November 1, 2022
Phase:
Study type: Observational

Renal resistive index (RRI) is calculated from ultrasonographic Doppler measurements of flow velocities in intraparenchymal renal arteries. Normal values are around 0.60, and 0.70 is considered the upper normal threshold in adults. Both preoperative and postoperative elevation of RRI has shown promise in early detection of AKI after cardiac surgery. Further, elevated RRI before coronary angiography is associated with an increased risk of cardiovascular complications up to 1 year after the procedure. The role of preoperative RRI in predicting long-term renal and cardiovascular complications after elective surgery is however not known. The aim of this study is to assess the role of preoperative RRI to predict the risk of persistent renal dysfunction as well as renal- and cardiovascular complications up to 5 years after surgery.

NCT ID: NCT03597074 Completed - Sepsis Clinical Trials

Doppler Ultrasound for Prediction of Reversibility of Acute Kidney Injury in Septic ICU Patients

Start date: March 2, 2017
Phase:
Study type: Observational

Purpose: The aim of this study was to assess the ability of early discrimination between transient and persistent Acute Kidney Injury (AKI) using the color Doppler Ultrasound derived Renal Resistive Index (RI) and semi-quantitative evaluation of intra-renal vascularization in septic patients in an Intensive Care Unit (ICU). Methods: Prospective observational cohort study with unselected, with 32 adult consecutive septic patients. Patients were divided into 3 groups: Group 1: patients without progression to AKI, Group 2: transient AKI, Group 3: persistent AKI.

NCT ID: NCT02041403 Completed - Outcome Clinical Trials

RENAL RESISTIVE INDEX POST-OPERATIVE COMPLICATIONS IN MAJOR SURGERY?

Start date: June 2012
Phase: N/A
Study type: Observational

An observational trial aiming to verify whether does any relationship exist between renal resistive index and postoperative outcome in major high risk surgery