Using ultrasound to check for kidney swelling in emergency patients with kidney injury

Point-of-care Ultrasound to Assess Hydronephrosis in Patients Presenting With Acute Kidney Injury in the Emergency Department: a Prospective Comparative Pragmatic Study

University Hospital, Montpellier · NCT06040736

This study is testing if emergency doctors can use bedside ultrasounds to quickly spot kidney swelling in patients with kidney injuries, so they can get the right treatment faster.

Quick facts

Study typeObservational
Enrollment156 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital, Montpellier (other)
Locations1 site (Montpellier)
Trial IDNCT06040736 on ClinicalTrials.gov

What this trial studies

This observational study evaluates the effectiveness of point-of-care ultrasound (POCUS) performed by emergency physicians to detect hydronephrosis in patients with acute kidney injury (AKI) in the emergency department. Participants will receive a bedside ultrasound followed by a central imaging evaluation by a radiologist to confirm the diagnosis. The study aims to determine if trained emergency physicians can accurately and quickly identify urinary tract obstruction using POCUS, which is crucial for timely treatment. The results will be compared to standard imaging methods like ultrasound or CT scans.

Who should consider this trial

Good fit: Ideal candidates include patients presenting with acute kidney injury as defined by specific serum creatinine changes.

Not a fit: Patients with conditions such as vesical globe, polycystic kidney disease, known renal tumors, or horseshoe kidney may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to faster and more accurate diagnoses of urinary tract obstruction in emergency settings, improving patient outcomes.

How similar studies have performed: Other studies have shown promise in using point-of-care ultrasound for similar diagnostic purposes, indicating potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient with acute kidney injury defined by changes in serum creatinine (sCr) level between the index sCr at ED admission and pre and/or post sCr controls (Kidney Disease Improving Global Outcome criteria)
* Patient who does not oppose to the use of their data

Exclusion Criteria:

* Vesical globe
* Polycystic kidney disease
* Known renal tumor
* Horseshoe kidney

Where this trial is running

Montpellier

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Acute Kidney Injury, Urinary Tract Obstruction, Point-of-care ultrasound, Acute kidney injury, Hydronephrosis, urinary tract obstruction, Emergency Medicine

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.