Renal doppler ultrasound: A new tool to assess renal perfusion in critical illness

Matthieu Le Dorze, Adrien Bouglé, Stéphane Deruddre, Jacques Duranteau

Research output: Contribution to journalReview ArticleResearchpeer-review

40 Citations (Scopus)

Abstract

Despite our increasing ability to support vital organs and resuscitate patients, the morbidity and mortality of acute kidney injury (AKI) remain high in the intensive care unit (ICU). The ability to predict the occurrence of AKI is crucial for the development of preventive strategies. Early diagnosis of AKI requires markers that are sensitive and easily applicable in clinical practice. The use of Doppler ultrasonography to assess renal perfusion is increasing in many kidney diseases and in the ICU. The Doppler-based renal resistive index, which is a simple, rapid, noninvasive, and repeatable marker, could be a promising tool to prematurely detect the patients most at risk of developing AKI in the ICU and to distinguish transient from persistent AKI. Moreover, the resistive index could also be useful to adjust preventive or therapeutic modalities for the kidney perfusion at the bedside. The recent progress in ultrasound with contrast-enhanced ultrasound gives the opportunity to assess not only the kidney macrocirculation but also the kidney microcirculation in the ICU. ABBREVIATIONS: AKI-acute kidney injuryCEUS-contrast-enhanced ultrasoundICU-intensive care unitRI-resistive indexRVS-renal vascular resistanceIAP-intra-abdominal pressureMAP-mean arterial pressure.

Original languageEnglish
Pages (from-to)360-365
Number of pages6
JournalShock
Volume37
Issue number4
DOIs
Publication statusPublished - Apr 2012
Externally publishedYes

Keywords

  • acute kidney injury
  • contrast-enhanced ultrasound
  • intensive care
  • Renal Doppler
  • renal resistive index

Cite this