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NCT Number: NCT07073508

The Validity of the Evaluation of Renal Artery Duplex in Critically Ill Acute Kidney Injury Patients

This study aims to assess the clinical relevance of renal artery duplex ultrasound in critically ill patients with acute kidney injury (AKI) in terms of the renal resistive index (RRI).

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Key information

Conditions

Validity Critically Ill Acute Kidney Injury Renal Artery Duplex

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Ain Shams University

Cairo, 11591, Egypt

Location status: Recruiting

Location contact

Amr M Abdou, MD

SUB_INVESTIGATOR

Ashraf E Elagamy, MD

SUB_INVESTIGATOR

Aya H Ahmed, MD

SUB_INVESTIGATOR

Mahmoud R Basiony, Master

CONTACT

[email protected]

00201094726393

Mohamed M Shokeir, MD

SUB_INVESTIGATOR

About this study

Diagnosis of acute kidney injury (AKI) is based on rising creatinine as late phenomenon. Intrarenal vasoconstriction occurs earlier, so measuring flow resistance in the renal circulation, renal resistive index (RRI), could become part of vital organ function assessment using Doppler ultrasound.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients age >18 years.
  • Both sexes.
  • Patients within 24 hours after intensive care unit (ICU) admission.

Exclusion criteria

  • Patients presented with poor abdominal echogenicity.
  • Chronic kidney disease, especially with estimated creatinine clearance less than 30 ml/min/1.73m.
  • Patients with dialysis dependency.
  • Patients with renal transplantation.
  • Patients with known renal artery stenosis.
  • If there is a pregnancy.
  • Patients with any congenital kidney diseases as mono-kidney, anatomic kidney abnormalities.

Treatment and study plan

Renal Artery Duplex

Other

Renal artery duplex will be performed to all patients in terms of renal resistivity index (RRI).

Primary outcomes

  1. Renal resistivity index (RRI)

    Time frame: 1 week post-procedure

    The renal resistivity index (RRI) will be assessed in patients with acute kidney injury (AKI) who require intensive care unit (ICU) admission within 24 hours.

Study contacts

Contact information is provided by the study sponsor or research team.

Mahmoud R Basiony, Master

CONTACT

[email protected]

00201094726393

Sponsors and collaborators

Lead sponsor

Ain Shams University

Other

Registry information

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Jul 18, 2025
Registry last updated
Jul 18, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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