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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Syncope history and symptoms

Introduction

Overview

Overview

Syncope itself is a symptom. Patients with syncope may feel balcking out, dizziness, lightheadedness, and temporary loss of consciousness. Patients may experience other symptoms based on the underlying causes of the syncope.

History and Symptoms

History and Symptoms

Syncope itself is a symptom. Patients with syncope may feel:[1][2][3]

Patients may experience other symptoms based on the underlying causes of the syncope. The table below demonstrates the important history findings of different type of syncope:

Subtype History Findings
Syncope due to orthostatic hypotension
  • Usually after standing up
      • Standing for a long time especially in a hot, crowded place
        • Standing after exertion
          Cardiovascular syncope
            • Occurs during exertion or supine
                  Neurally-mediated syncope
                    • Recurrent episodes of syncope
                        • Occurs after sudden, unexpected sight, smell, emotional situation
                          • Standing for a long time especially in a hot, crowded place
                          • During or after a meal
                          • After exertion
                          References

                          References

                          1. ↑ Chen M, Jamnadas-Khoda J, Broadhurst M, Wall M, Grünewald R, Howell SJL; et al. (2019). “Value of witness observations in the differential diagnosis of transient loss of consciousness”. Neurology. 92 (9): e895–e904. doi:10.1212/WNL.0000000000007017. PMID 30804064.
                          2. ↑ Wieling, W.; Thijs, R. D.; van Dijk, N.; Wilde, A. A. M.; Benditt, D. G.; van Dijk, J. G. (2009). “Symptoms and signs of syncope: a review of the link between physiology and clinical clues”. Brain. 132 (10): 2630–2642. doi:10.1093/brain/awp179. ISSN 0006-8950.
                          3. ↑ Alboni, P (2002). “Haemodynamic changes early in prodromal symptoms of vasovagal syncope”. Europace. 4 (3): 333–338. doi:10.1053/eupc.2002.0241. ISSN 1099-5129.

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                          Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2]