Canadian Prehospital Syncope Risk Score (Prehospital CSRS) (NCT05560126)
Validation of the Canadian Prehospital Syncope Risk Score
🩺 Plain-English Summary (8th-Grade Level)
Background: Syncope is defined as a sudden, brief loss of consciousness (LOC) followed by a rapid complete recovery. It accounts for 160,000 emergency department (ED) visits each year in Canada. Despite this, few people are hospitalized (\~15%) and even fewer will die (\~1%). Two-thirds of patients with syncope arrive at the ED by calling 911. There are many causes of syncope. Identifying patients at low risk for bad outcomes would allow paramedics to safely determine which patients need care in the ED from those who can remain home. The research team recently developed the Canadian Prehospital Syncope Risk Score (CPSRS) which accurately identified patients at low risk for 30-day serious outcomes. Objective: The goal of this study is to validate the accuracy of the CPSRS in the prehospital setting or refine if needed to predict the risk of 30-day serious outcomes for patients with syncope. Methods: The research team will enroll patients with syncope from five paramedic services across Canada (British Columbia - Vancouver and Kelowna areas only, London-Middlesex, York Region, Frontenac, and Ottawa). The research team will exclude patients \<18 years old, LOC \>5 minutes, changes in mental status from baseline, alcohol or drug intoxication, or language barrier. Paramedics will fill out a study data collection form with the CPSRS items and additional data should the tool need refinement. The data will be entered into a secure database and will assess patient outcomes (death and potentially life-threatening medical conditions) at 30 days. The research team will examine model accuracy using standard prediction measures and look to improve model accuracy if needed. The research team expects to enroll 4875 patients over a 1-year recruitment period based on annual call volumes. Expected Outcomes: Once validated, the tool could reduce the number of patients transported to the hospital by identifying those at low risk. This would improve patient-oriented care, while at the same time saving valuable paramedic and ED resources.
Who can join: Review the eligibility criteria below.
Location: Ottawa Hospital Research Institute — Ottawa, Ontario
Age range: 18 Years
📋 "Do I Qualify?" — 1-Minute Self Screener
Instant ChecklistFull eligibility criteria are available on the official NIH protocol. View the criteria ↗
📍 All Participating Trial Locations (1 Sites)
- Ottawa Hospital Research Institute — Ottawa, Ontario
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
More studies in Syncope
- CSRS Implementation - A Pilot Study — Ottawa, Ontario
- BAsel Syncope EvaLuation (BASEL IX) Study — Houston, Texas
- Syncope Trial to Understand Tilt Testing or ECG Recording Tenth Prevention of Syncope Trial — Calgary, Alberta
- SW-RCT Implementation of Canadian Syncope Risk Score Based Practice Recommendations — Calgary, Alberta
- REmote Cardiac MOnitoring of At-risk SYNCope Patients After Emergency Department Discharge -RCT — Ottawa, Ontario
Explore by condition: All Syncope clinical trials
💡 How to Participate
- Check the checklist above to see if you may qualify.
- Review the official NIH record below to find the coordinating site.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.