J Korean Soc Emerg Med.  2018 Apr;29(2):212-222. 10.0000/jksem.2018.29.2.212.

A single emergency center study on the Canadian Syncope Risk Score applied to a patients visited with syncope in Korea

• Lee KW
• Park YS
• Choe MS
• Je DW
• Kim SH
• Nho WY
• Park HI
• Shin SJ
• Lee MJ
• Ahn JY
• Lee DE
• Moon S
• Lee SH

• KMID: 2435541
• DOI: http://doi.org/10.0000/jksem.2018.29.2.212

Abstract

OBJECTIVE
Syncope is mostly benign, but it can also be caused by a life-threatening situation. In Korea, no studies have investigated application of the Canadian Syncope Risk Score (CSRS) to patients with syncope; therefore, this study was started to evaluate the usefulness of CSRS.
METHODS
A total of 222 patients who visited the emergency room with syncope for one year from January 2016 to December 2016 were enrolled in this study. Patients were divided into two groups, a serious adverse events (SAE) group and a non-serious adverse events group. The scores of the nine CSRS variables were added and the CSRS was then calculated after the addition.
RESULTS
The CSRS score for patients with SAE ranged from 0 to 8. The CSRS score was 18.6%, 31.7%, 55.6%, and 58.8% for 0, 1, 2, and 3, respectively. In the case of CSRS 0 and 1, 17 patients (81.0%) and 11 patients (84.6%) were non-cardiac. In the case of CSRS 2, 7 were non-cardiac (70.0%). In the case of CSRS 3, 6 cases (60.0%) were cardiogenic and 4 cases (40.0%) were non-cardiogenic. The area under the receiver operating characteristic curve of CSRS to predict SAE was 0.71. Setting the CSRS cutoff value to 0, we found that sensitivity and specificity of predicting SAE was 67.19% and 67.09%, respectively.
CONCLUSION
CSRS may be difficult to predict for acute intracranial disease or acute hemorrhagic disease requiring transfusion; therefore, it is necessary to supplement it further.

Keyword

Syncope; Risk factors; Emergency service; Hospitals

MeSH Terms

Emergencies*
Emergency Service, Hospital
Humans
Korea*
Risk Factors
ROC Curve
Sensitivity and Specificity
Syncope*