Canadian Syncope Risk ScoreLoading...Predisposition to vasovagal symptomsYes-1No0Heart disease historyNo0Yes+1sBP < 90 or > 180 mmHgNo0Yes+2Elevated troponinNo0Yes+2Abnormal QRS axisNo0Yes+1QRS duration > 130 msNo0Yes+1Corrected QT interval > 480 msNo0Yes+2ED diagnosisVasovagal syncope-2Neither0Cardiac syncope+2适用指征洞见与注意事项