Emergency Medicine · Cardiology

Canadian Syncope Risk Score calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Predisposition to vasovagal symptoms (−1)History of heart disease (+1)Any ED systolic BP <90 or >180 mmHg (+2)Troponin above the 99th percentile (+2)Abnormal QRS axis, <−30° or >100° (+1)QRS duration >130 ms (+1)Corrected QT interval >480 ms (+2)

Emergency-department diagnosis

Result

Complete all required inputs to calculate the score.

Formula inputs

Predisposition to vasovagal symptoms (−1)
History of heart disease (+1)
Any ED systolic BP <90 or >180 mmHg (+2)
Troponin above the 99th percentile (+2)
Abnormal QRS axis, <−30° or >100° (+1)
QRS duration >130 ms (+1)
Corrected QT interval >480 ms (+2)
Emergency-department diagnosis

Primary source

Thiruganasambandamoorthy V et al. Development of the Canadian Syncope Risk Score. CMAJ (2016)

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