Dados do Trabalho

Título

Early simultaneous assessment with lung ultrasound and Doppler-based renal resistive index in mechanically ventilated patients

Objetivo

This study aims to evaluate the association between the Doppler-based Renal Resistive Index (RRI) and the Lung Ultrasound Score (LUS) on the first day in the ICU in mechanically ventilated patients, and their relationship with outcomes such as acute kidney injury (AKI) and mortality

Métodos

A prospective observational pilot study was performed, including adult patients on mechanical ventilation (MV), admitted within the last 24 hours to a General ICU, excluding those in the postoperative state. The assessment of the RRI and LUS was performed on the first day in the ICU. The following outcomes were observed: AKI, MV duration, ICU and in-hospital length of stay, and mortality

Resultados

In a preliminary sample, 114 patients were included, from August 2023 to June 2024. RRI was performed in 102 patients, and LUS, in the entire cohort. The mean age was 54.46 years. Fifty-one (44.7%) were septic, while 44 (38.6%) were intubated due to decreased consciousness. Forty-two patients (36.8%) developed AKI during hospitalization. The AKI group had significantly higher RRI (67.73 ± 9.84 vs 61.44 ± 11.45, p = 0.005), and LUS (7.02 ± 4.78 vs 4.71 ± 4.9, p = 0.007), in comparison to the non-AKI group. However, there was no association with other outcomes or significant correlation between the RRI and LUS.

Conclusão

Our results indicate that both renal arterial Doppler and lung ultrasound can help predict AKI early in the ICU. As data collection progresses, we plan to examine whether these findings are more influenced by inflammatory activity or by congestion.