Hydro II: Emergency Department Ultrasound in Renal Colic
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Queen's University
- Enrollment
- 414
- Locations
- 1
- Primary Endpoint
- diagnostic accuracy for hydronephrosis
Study Overview
Brief 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. 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.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 16 Years to 65 Years (Child, Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •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)
Exclusion Criteria
- •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
- •Renal transplant or single functioning kidney
Outcomes
Primary Outcomes
diagnostic accuracy for hydronephrosis
Time Frame: 1 hours
The accuracy of ED physicians in using EDTU to assess for hydronephrosis when compared to diagnostic imaging by CT or formal ultrasound.
complications post-ED visit in patients with and without negative EDTU.
Time Frame: 30 days
The frequency of complications by 30 days post-ED visit in patients with and without negative EDTU.
Secondary Outcomes
- ED length of stay(1 day)
- radiation dose(1 hour)
- accuracy in ruling out AAA(1 hour)
Investigators
Dr. Marco L.A. Sivilotti
Research Director
Queen's University