• Emanuele Pivetta, Francesca Moretto, Serena Masellis, Milena Manasievska, Maria Tizzani, Franca Dipaola, Federica Bovaro, Monica Masoero, Patrizia Ferrera, Fulvio Morello, Milena M Maule, and Enrico Lupia.
• Division of Emergency Medicine and High Dependency Unit, Città della Salute e della Scienza di Torino, Turin, Italy. emanuele.pivetta@gmail.com.
• Intern Emerg Med. 2022 Jun 1; 17 (4): 1191-1198.

AbstractThis prospective cohort enrolled all patients above 16 years of age presenting to the in the emergency department (ED) for a reported syncope was designed to test the accuracy of a point-of-care ultrasound (POCUS) integrated approach in risk stratification. The emergency physician responsible for the patient care was asked to classify the syncope risk after the initial clinical assessment and after performing POCUS evaluation. All risk group definitions were based on the 2018 European Society of Cardiology guidelines. Thirty days after the index event, all participants were followed up to assess the frequency of short-term serious outcomes as defined in the San Francisco Syncope Rule (SFSR) cohorts. We estimated the accuracy of clinical and POCUS-integrated evaluation in predicting SFSR outcomes. Between February 2016 and January 2018, 196 patients were enrolled [109 women (55.6%)]. Median age was 64 years (interquartile range 31 years). After a follow-up of 30 days, 19 patients experienced 20 SFSR outcomes. Positive and negative likelihood ratios were 1.73 (95% CI 0.87-3.44) and 0.84 (95% CI 0.62-1.12) for the clinical evaluation, and 5.93 (95% CI 2.83-12.5) and 0.63 (95% CI 0.45-0.9) for the POCUS-integrated evaluation. The POCUS-integrated approach would reduce the diagnostic error of the clinical evaluation by 4.5 cases/100 patients. This cohort study suggested that the integration of the clinical assessment with POCUS results in patients presenting to the ED for non-high-risk syncope may increase the accuracy of predicting the risk of SFSR outcomes and the usefulness of the clinical assessment alone.© 2021. The Author(s), under exclusive licence to Società Italiana di Medicina Interna (SIMI).

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