Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study

Objective To investigate the diagnostic performances of renal resistive index (RRI) and semiquantitative power Doppler ultrasound (PDU) scores in predicting acute kidney injury (AKI) stage 3 in critically ill patients. Methods This prospective observational study included 148 patients (80 with reduc...

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Main Authors: Hai Jun Zhi, Yong Li, Bo Wang, Xiao Ya Cui, Meng Zhang, Zhen Jie Hu
Format: Article
Language:English
Published: Taylor & Francis Group 2020-01-01
Series:Renal Failure
Subjects:
Online Access:http://dx.doi.org/10.1080/0886022X.2020.1737544
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author Hai Jun Zhi
Yong Li
Bo Wang
Xiao Ya Cui
Meng Zhang
Zhen Jie Hu
author_facet Hai Jun Zhi
Yong Li
Bo Wang
Xiao Ya Cui
Meng Zhang
Zhen Jie Hu
author_sort Hai Jun Zhi
collection DOAJ
description Objective To investigate the diagnostic performances of renal resistive index (RRI) and semiquantitative power Doppler ultrasound (PDU) scores in predicting acute kidney injury (AKI) stage 3 in critically ill patients. Methods This prospective observational study included 148 patients (80 with reduced cardiac index [CI], 68 with maintained CI). RRI and semiquantitative PDU scores were measured within 6 h after intensive care unit admission. AKI was defined according to Kidney Disease Improving Global Outcomes criteria. Results A negative correlation between RRI and PDU score (r = −0.517, p < 0.001) and a positive correlation between PDU score and CI (r = 0.193, p = 0.019) were found, whereas RRI was not correlated with CI (r = 0.131, p = 0.121). The predictive value of RRI for AKI stage 3 was similar between CI-reduced (area under the curve [AUC] 0.761, 95% confidence interval 0.650–0.851, p < 0.001) and CI-maintained (AUC 0.786, 95% confidence interval 0.665–0.878, p < 0.001) patients. Conversely, PDU score could effectively predict AKI stage 3 in CI-reduced patients (AUC 0.872, 95% confidence interval 0.778–0.936, p < 0.001) but not in CI-maintained patients (AUC 0.669, 95% confidence interval 0.544–0.778, p = 0.071). The predictive value of PDU score for AKI stage 3 was statistically different between CI-reduced and CI-maintained patients (p = 0.021). Conclusions PDU scores could effectively predict AKI stage 3 in CI-reduced patients but not in CI-maintained patients. RRI is a poor predictor of AKI stage 3 in patients with reduced or maintained CI.
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spelling doaj.art-08650acc8de4439a92e9e5bde04d96b22022-12-21T22:57:26ZengTaylor & Francis GroupRenal Failure0886-022X1525-60492020-01-0142126326910.1080/0886022X.2020.17375441737544Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational studyHai Jun Zhi0Yong Li1Bo Wang2Xiao Ya Cui3Meng Zhang4Zhen Jie Hu5Department of Critical Care Medicine, Fourth Hospital of Hebei Medical UniversityEmergency Department, Cangzhou Central HospitalEmergency Department, Cangzhou Central HospitalEmergency Department, Cangzhou Central HospitalEmergency Department, Cangzhou Central HospitalDepartment of Critical Care Medicine, Fourth Hospital of Hebei Medical UniversityObjective To investigate the diagnostic performances of renal resistive index (RRI) and semiquantitative power Doppler ultrasound (PDU) scores in predicting acute kidney injury (AKI) stage 3 in critically ill patients. Methods This prospective observational study included 148 patients (80 with reduced cardiac index [CI], 68 with maintained CI). RRI and semiquantitative PDU scores were measured within 6 h after intensive care unit admission. AKI was defined according to Kidney Disease Improving Global Outcomes criteria. Results A negative correlation between RRI and PDU score (r = −0.517, p < 0.001) and a positive correlation between PDU score and CI (r = 0.193, p = 0.019) were found, whereas RRI was not correlated with CI (r = 0.131, p = 0.121). The predictive value of RRI for AKI stage 3 was similar between CI-reduced (area under the curve [AUC] 0.761, 95% confidence interval 0.650–0.851, p < 0.001) and CI-maintained (AUC 0.786, 95% confidence interval 0.665–0.878, p < 0.001) patients. Conversely, PDU score could effectively predict AKI stage 3 in CI-reduced patients (AUC 0.872, 95% confidence interval 0.778–0.936, p < 0.001) but not in CI-maintained patients (AUC 0.669, 95% confidence interval 0.544–0.778, p = 0.071). The predictive value of PDU score for AKI stage 3 was statistically different between CI-reduced and CI-maintained patients (p = 0.021). Conclusions PDU scores could effectively predict AKI stage 3 in CI-reduced patients but not in CI-maintained patients. RRI is a poor predictor of AKI stage 3 in patients with reduced or maintained CI.http://dx.doi.org/10.1080/0886022X.2020.1737544acute kidney injuryrenal resistive indexsemiquantitative power doppler ultrasound scorecardiac index
spellingShingle Hai Jun Zhi
Yong Li
Bo Wang
Xiao Ya Cui
Meng Zhang
Zhen Jie Hu
Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
Renal Failure
acute kidney injury
renal resistive index
semiquantitative power doppler ultrasound score
cardiac index
title Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
title_full Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
title_fullStr Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
title_full_unstemmed Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
title_short Renal echography for predicting acute kidney injury in critically ill patients: a prospective observational study
title_sort renal echography for predicting acute kidney injury in critically ill patients a prospective observational study
topic acute kidney injury
renal resistive index
semiquantitative power doppler ultrasound score
cardiac index
url http://dx.doi.org/10.1080/0886022X.2020.1737544
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