ArticleJournal of critical care medicine (Universitatea de Medicina si Farmacie din Targu-Mures)2025
Assessing volume status in heart failure: The role of renal duplex ultrasound in evaluating cardiorenal morbidity and heart failure mortality.
Article in Journal of critical care medicine (Universitatea de Medicina si Farmacie din Targu-Mures), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Critical care physicians face challenges managing decompensated heart failure. This study aims to examine the volume status of patients with decompensated heart failure and evaluate the effectiveness of the renal resistive index (RRI) and renal venous flow pattern (VFP) in assessing volume status and predicting outcomes related to cardiorenal syndrome and mortality. Patients and methods: This prospective study was conducted in the intensive care unit of Kasr Elainy Hospital at Cairo University with patients admitted for acute decompensated heart failure (ADHF). Patients were subjected to clinical screening, laboratory measurements, and echocardiographic examination, including cardiac index renal duplex. Results: This study included 61 patients with a mean age of 64.8±9.1 years. Renal duplex parameters were 0.692±0.087 for the mean RRI, and the percentages of VFP were as follows: continuous 49.2%, biphasic 27.9%, and monophasic 23%. Elevated proBNP levels and IVC collapsibility index were significantly associated with RRI ≥0.75 and abnormal VFP patterns in assessing volume status. The ROC curve of the RRI, VFP, proBNP, SOFA score, ADHERE risk score, and GWTG-HF score for AKI occurrence showed that RRI has 68% sensitivity to detect AKI, but VFP has better results with 86.4% sensitivity. RRI has a prognostic role in predicting in-hospital mortality in acute heart failure, as RRI has 83.3% sensitivity, and VFP showed better results with 83.3% sensitivity. Also, VFP had a better predictive value for the incidence of 3 months mortality with 90.9% sensitivity, while RRI has 63.4% sensitivity. Conclusion: Renal duplex measures, such as VFP and RRI, are highly effective prognostic tools for identifying worsening renal function. Beyond renal outcomes, these measures also serve as reliable predictors of mortality and survival in patients with acute decompensated heart failure, offering clinicians the opportunity to tailor therapeutic approaches early during treatment.
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