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Canadian Syncope Risk Score

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Canadian Syncope Risk Score

  • See Also
  1. Syncope
  2. San Francisco Syncope Rule (CHESS Criteria)
  • Criteria
  • Clinical
  1. Score -1: Vasovagal symptom predisposition
  2. Score 1: Heart disease history
  3. Score 2: Any systolic Blood Pressure reading <90 mmHg or >180 mmHg
  • Criteria
  • Evaluation
  1. Score 2: Troponin elevated
  2. Score 1: QRS Axis abnormal (<30 or >100 degrees)
  3. Score 1: QRS Duration >130 ms
  4. Score 2: QTc >480 ms
  • Criteria
  • ED Diagnosis
  1. Score -2: Vasovagal Syncope
  2. Score 2: Cardiac Syncope
  • Interpretation (based on the sum of all 9 criteria)
  1. Score -3 to 0: Very low risk (serious adverse events <=0.9% in 30 days)
  2. Score 1: Low Risk (serious adverse events <=1.9% in 30 days)
  3. Score 2 to 3: Medium risk (serious adverse events 3.8 to 7.5% in 30 days)
  4. Score 4 to 5: High risk (up to 25% serious adverse event rate)
  5. Score >=6: Very high risk (up to 75% serious adverse event rate)
  • Resources
  1. Canadian Syncope Risk Score
    1. https://www.mdcalc.com/canadian-syncope-risk-score
  • References
  1. thiruganasambandamoorthy (2016) CMAJ 88(12): E289-98 +PMID:27378464 [PubMed]