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August 21, 2025Open Access

Renal Resistive Index in Cardiac Surgery: A Narrative Review

DTDebora Emanuela TorreOspedale dell' Angelo SCSilvia CarbogninUniformed Services University of the Health Sciences DMDomenico ManginoOspedale dell' Angelo

Key Points

Renal resistive index is a promising tool for early detection of acute kidney injury, particularly in cardiac surgery patients.
The review emphasizes the link between cardiac surgery and acute kidney injury, noting it's a significant complication post-surgery.
Utilizing Doppler-based measurements alongside biomarkers can enhance the prediction of acute kidney injury events.
Identifying acute kidney injury early may lead to better patient management and improved outcomes in intensive care settings.

Abstract

Cardiac surgery-associated acute kidney injury (CSA-AKI) is the most prevalent clinically significant complication in adult patients undergoing open heart surgery, closely linked to increased mortality and morbidity. Among intensive care unit (ICU) patients, CSA-AKI is the second most common type of acute kidney injury, surpassed only by sepsis-induced AKI. The Doppler-based Renal Resistive Index (RRI) measurement is a rapid and non-invasive diagnostic tool with potential for the early detection of acute kidney injury in intensive care unit patients and could also be useful as an early predictor of acute kidney injury (AKI) in the context of cardiac surgery, particularly when used in conjunction with novel biomarkers.

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Cite This Study

Torre et al. (Thu,) studied this question.

synapsesocial.com/papers/68af56faad7bf08b1eadd3b2 https://doi.org/https://doi.org/10.3390/anesthres2030019

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