Korean J Med.  2020 Aug;95(4):251-259. 10.3904/kjm.2020.95.4.251.

Clinical Approach and Diagnosis of Syncope

  • 1Division of Cardiology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea


Syncope, defined as a transient loss of consciousness, is commonly clinical encountered in patients of all ages at emergency and outpatient clinics. However, syncope shares various clinical features with other diseases (e.g., epilepsy), and the explicit cause may be difficult to identify because testing (e.g., electrocardiography) cannot be performed during a syncopal episode. Syncope due to a cardiac disorder may lead to a fatal outcome such as sudden cardiac death, whereas neurally mediated syncope has a much more favorable prognosis. Herein, we classify the causes of syncope and provide the clinical approach for each, focusing on recently updated guidelines.


실신; 미주신경 실신; 심장성 실신; 이식형 사건 기록기; 급성 심장마비; Syncope; Vasovagal syncope; Cardiac syncope; Implantable loop recorder; Sudden cardiac death
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