Canadian Syncope Risk Score Now Is Validated Internationally

The Canadian Syncope Risk Score (CSRS) — the largest prospectively validated risk stratification tool for patients presenting to emergency departments (EDs) with syncope — initially was derived and validated in Canada. Now, investigators formed an international prospective cohort of 2283 patients (from the U.S., Australia, New Zealand, and 5 European countries) who presented to EDs with syncope, to compare the CSRS to a previously validated European syncope risk stratification tool (OESIL score).

The CSRS triaged 60% of patients as low or very low risk; the OESIL score triaged 48% as low risk. Low- and very low–risk patients categorized via the CSRS had significantly lower 30-day serious adverse event rates than did low-risk patients categor…