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Renal ColicNCT01323842

Emergency Department Ultrasound in Renal Colic

An observational study of Renal Colic and Hydronephrosis, run by Queen's University at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Renal colic is a common (1300 visits per year at our institution) and painful condition caused by stones in the kidney and ureter, and can be mimicked by life threatening conditions such as a ruptured abdominal aortic aneurysm (AAA). This can create clinical uncertainty. Read more about this study

Who is it for?
Ages 16 to 65 years
What is being tested?
EDTU
Type of treatment
Surgery or procedure
How many people
414 participants
Where
1 siteCanada
Study dates
Mar 2011to Dec 2013
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 16 to 65 years
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: ED patients with suspected renal colic being imaged while in the ED

Who may be able to join

  • Age 16 - 65 years
  • Symptoms suggestive of renal colic
  • EDTU performed within one hour (before or after) of formal imaging
  • Imaging study arranged during this ED visit (includes next morning)

Who cannot join

  • Hemodynamic instability (Pulse > 120 or SBP < 90 or requiring vasopressors)
  • Fever (>38 degrees C)
  • Leukocytes and nitrites on dipstick urinalysis (evidence of urinary tract infection)
  • Pregnancy
  • Inmate
  • Renal transplant or single functioning kidney

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Kingston General Hospital

    Kingston, Ontario, K7L 2V7

Other trials in Canada

About this study

Official title: Hydro II: Emergency Department Ultrasound in Renal Colic

Renal colic is a common (1300 visits per year at our institution) and painful condition caused by stones in the kidney and ureter, and can be mimicked by life threatening conditions such as a ruptured abdominal aortic aneurysm (AAA). This can create clinical uncertainty. Emergency department targeted ultrasound (EDTU) is performed by an emergency physician at the patient's bedside, and has been shown to be accurate, safe, and efficient. We have shown that EDTU can accurately identify hydronephrosis, which is a predictor of complications of kidney stones. A normal formal ultrasound (US) predicts an uncomplicated clinical course. We will assess the accuracy of EDTU for the diagnosis of hydronephrosis, and when normal, whether patients can be safely discharged.

Being tested
EDTU
Keywords
renal colic, hydronephrosis, abdominal aortic aneurysm, ultrasound, emergency medicine, urolithiasis
Medical subject headings
Renal Colic, Hydronephrosis, Aortic Aneurysm, Abdominal, Urolithiasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EDTUProcedure or surgery

    bedside ultrasound imaging by the treating emergency physician

Study groups in NCT01323842
Study groupRoleWhat they receive
rule in renal colicED patients with abdominal/flank pain where a diagnosis of renal colic is being considered and undergoing formal imaging while in the ED
Receives: Procedure: EDTU

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. complications post-ED visit in patients with and without negative EDTU.

    The frequency of complications by 30 days post-ED visit in patients with and without negative EDTU.

    Measured: 30 days

  2. diagnostic accuracy for hydronephrosis

    The accuracy of ED physicians in using EDTU to assess for hydronephrosis when compared to diagnostic imaging by CT or formal ultrasound.

    Measured: 1 hours

Secondary outcomes (3)
  1. ED length of stay

    estimates of potential time of ED stay saved if a clinical decision is made on the basis of an EDTU (rather than waiting for formal diagnostic imaging)

    Measured: 1 day

  2. radiation dose

    potential savings in radiation exposure from avoiding CT scanning

    Measured: 1 hour

  3. accuracy in ruling out AAA

    accuracy of ED physicians in using EDTU to assess aortic size (and rule out AAA) when compared to diagnostic imaging by CT or formal ultrasound will also be validated.

    Measured: 1 hour

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Mar 2011 (estimated)
  2. Study startMar 2011
  3. Primary completionJul 2013
  4. Study completionDec 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
414 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01323842
Sponsor's protocol ID
Hydro II
Status last verified
Nov 2015
First submitted
24 Mar 2011
Last updated
26 Nov 2015
Results posted
No
Data monitoring committee
No

Publications

  • Sibley S, Roth N, Scott C, Rang L, White H, Sivilotti MLA, Bruder E. Point-of-care ultrasound for the detection of hydronephrosis in emergency department patients with suspected renal colic. Ultrasound J. 2020 Jun 8;12(1):31. doi: 10.1186/s13089-020-00178-3.

    PubMed 32507905

Questions about this trial

What is this clinical trial studying?

An observational study of Renal Colic and Hydronephrosis, run by Queen's University at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Nov 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

complications post-ED visit in patients with and without negative EDTU. (time frame: 30 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01323842, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Nov 2015.

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