What is the mortality risk for syncope?

Updated: Jan 13, 2017
  • Author: Rumm Morag, MD, FACEP; Chief Editor: Erik D Schraga, MD  more...
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Risk of serious outcome and death in patients with syncope increases with higher peak troponin concentrations, according to a prospective cohort study of 338 patients who had plasma troponin I levels measured with a sensitive assay 12 hours after syncope. [16]  The percentage of patients with a serious outcome increased across patients divided into quintiles on the basis of peak troponin concentration at 1 month (0%, 9%, 13%, 26%, 70%) and at 1 year (10%, 22%, 26%, 52%, 85%). [16]

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