Skip to main content

Prognosis of Syncope Across the Diagnostic Spectrum

  • Chapter
  • First Online:
Syncope
  • 782 Accesses

Abstract

Syncope has outcomes ranging from the benign to the ultimately sinister depending on the underlying cause. In this chapter, I will focus initially on the determinants of syncope prognosis before turning to the likelihood of symptom recurrence and mortality over different time frames (short and long term) following the initial presentation. I will review the tools of the trade that can inform prognostication alongside the clinical features that help the clinician provide meaningful advice to his or her patient, before turning to recent developments in syncope prognosis and considering a brief manifesto for the direction of travel for future research. This includes the need for patient group definition (for example, by age) rather than the current blanket view in prognosis studies; incorporation of outcomes that reflect the totality of the syncope experience, to include syncope recurrence and not just hard serious outcomes like mortality; information on the vast number of syncopal episodes that present via non-Emergency Department services; more information on outcomes in non-cardiac syncope; information on long-term outcomes in syncope, which is currently very limited; and finally data on whether knowledge of prognosis can influence outcomes, a consideration missing from the evidence base to date. When these factors are addressed and refined, we will be in a much better position to provide our patients and clinicians with an accurate prognosis that makes risk stratification and targeted investigation and management strategies based on it of benefit to them and the health care system as a whole.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 109.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 159.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  1. Soteriades ES, Evans JC, Larson MG, Chen MH, Chen L, Benjamin EJ, Levy D. Incidence and prognosis of syncope. N Engl J Med. 2002;347:878–85.

    Article  Google Scholar 

  2. Vanbrabant P, Gillet JB, Buntinx F, Bartholomeeusen S, Aertgeerts B. Incidence and outcome of first syncope in primary care: a retrospective cohort study. BMC Fam Pract. 2011;12:102.

    Article  Google Scholar 

  3. Kapoor WN. Evaluation and outcome of patients with syncope. Medicine (Baltimore). 1990;69:160–75.

    Article  CAS  Google Scholar 

  4. Solbiati M, Casazza G, Dipaola F, Rusconi AM, Cernuschi G, Barbic F, Montano N, Sheldon RS, Furlan R, Costantino G. Syncope recurrence and mortality: a systematic review. Europace. 2015;17:300–8.

    Article  Google Scholar 

  5. Costantino G, Sun BC, Barbic F, Bossi I, Casazza G, Dipaola F, McDermott D, Quinn J, Reed MJ, Sheldon RS, Solbiati M, Thiruganasambandamoorthy V, Beach D, Bodemer N, Brignole M, Casagranda I, Del Rosso A, Duca P, Falavigna G, Grossman SA, Ippoliti R, Krahn AD, Montano N, Morillo CA, Olshansky B, Raj SR, Ruwald MH, Sarasin FP, Shen WK, Stiell I, Ungar A, Gert van Dijk J, van Dijk N, Wieling W, Furlan R. Syncope clinical management in the emergency department: a consensus from the first international workshop on syncope risk stratification in the emergency department. Eur Heart J. 2016;37:1493–8.

    Article  Google Scholar 

  6. Ruwald MH, Hansen ML, Lamberts M, Hansen CM, Vinther M, Køber L, Torp-Pedersen C, Hansen J, Gislason GH. Prognosis among healthy individuals discharged with a primary diagnosis of syncope. J Am Coll Cardiol. 2013;61(3):325–32.

    Article  Google Scholar 

  7. Yasa E, Ricci F, Magnusson M, Sutton R, Gallina S, Caterina R, Melander O, Fedorowski A. Cardiovascular risk after hospitalisation for unexplained syncope and orthostatic hypotension. Heart. 2018;104:487–93.

    Article  Google Scholar 

  8. Fedorowski A, Ricci F, Sutton R. Orthostatic hypotension and cardiovascular risk. Kardiol Pol. 2019;77(11):1020–7.

    PubMed  Google Scholar 

  9. du Fay de Lavallaz J, Badertscher P, Badertscher P, Nestelberger T, Zimmermann T, Miró Ò, Salgado E, Christ M, Geigy N, Cullen L, Than M, Martin-Sanchez FJ, Di Somma S, Peacock WF, Morawiec B, Walter J, Twerenbold R, Puelacher C, Wussler D, Boeddinghaus J, Koechlin L, Strebel I, Keller DI, Lohrmann J, Michou E, Kühne M, Reichlin T, Mueller C. B-type natriuretic peptides and cardiac troponins for diagnosis and risk-stratification of syncope. Circulation. 2019; https://doi.org/10.1161/CIRCULATIONAHA.118.038358.

  10. Del Rosso A, Ungar A, Maggi R, Giada F, Petix NR, De Santo T, Menozzi C, Brignole M. Clinical predictors of cardiac syncope at initial evaluation in patients referred urgently to a general hospital: the EGSYS score. Heart. 2008;94:1620–6.

    Article  Google Scholar 

  11. Thiruganasambandamoorthy V, Kwong K, Wells GA, Sivilotti MLA, Mukarram M, Rowe BH, Lang E, Perry JJ, Sheldon R, Stiell IG, Taljaard M. Development of the Canadian Syncope risk score to predict serious adverse events after emergency department assessment of syncope. CMAJ. 2016;188(12):E289–98.

    Article  Google Scholar 

  12. Clark CL, Gibson TA, et al. Do high-sensitivity troponin and natriuretic peptide predict death or serious cardiac outcomes after Syncope? Acad Emerg Med. 2019;26(5):528–38.

    Article  Google Scholar 

  13. Gibson TA, Weiss RE, Weiss RE, Yagapen AN, Malveau SE, Adler DH, Bastani A, Baugh CW, Caterino JM, Diercks DB, Hollander JE, Nicks BA, Nishijima DK, Shah MN, Stiffler KA, Storrow AB, Wilber ST, Sun BC. Predictors of short-term outcomes after syncope: a systematic review and meta-analysis. West J Emerg Med. 2018;19(3):517–23.

    Article  Google Scholar 

  14. Ruwald MH, Hansen ML, Lamberts M, Hansen CM, Numé AK, Vinther M, Køber L, Torp-Pedersen C, Hansen J, Gislason GH. Comparison of incidence, predictors, and the impact of co-morbidity and polypharmacy on the risk of recurrent syncope in patients <85 versus ≥85 years of age. Am J Cardiol. 2013;112:1610–5.

    Article  Google Scholar 

  15. Ungar A, Del Rosso A, Giada F, Bartoletti A, Furlan R, Quartieri F, Lagi A, Morrione A, Mussi C, Lunati M, De Marchi G, De Santo T, Marchionni N, Brignole M. Early and late outcome of treated patients referred for syncope to emergency department: the EGSYS 2 follow-up study. Eur Heart J. 2010;31:2021–6.

    Article  Google Scholar 

  16. Sheldon R. Syncope diagnostic scores. Prog Cardiovasc Dis. 2013;55:390–5.

    Article  Google Scholar 

  17. Parry SW. Current issues with prediction rules for syncope. CMAJ. 2011;183(15):1694–5.

    Article  Google Scholar 

  18. Costantino G, Casazza G, Reed M, Bossi I, Sun B, Del Rosso A, Ungar A, Grossman S, D'Ascenzo F, Quinn J, McDermott D, Sheldon R, Furlan R. Syncope risk stratification tools vs clinical judgment: an individual patient data meta-analysis. Am J Med. 2014;127(11):1126.e13–2.

    Article  Google Scholar 

  19. Sandhu RK, Tran DT, Sheldon RS, Kaul P. A population-based cohort study evaluating outcomes and costs for syncope presentations to the emergency department. JACC Clin Electrophysiol. 2018;4(2):265–73.

    Article  Google Scholar 

  20. Thiruganasambandamoorthy V, Rowe BH, Sivilotti MLA, McRae AD, Arcot K, Nemnom MJ, Huang L, Mukarram M, Krahn AD, Wells GA, Taljaard M. Duration of electrocardiographic monitoring of emergency department patients with syncope. Circulation. 2019;139(11):1396–406.

    Article  Google Scholar 

  21. Solbiati M, Bozzano V, Barbic F, Casazza G, Dipaola F, Quinn JV, Reed MJ, Sheldon RS, Shen WK, Sun BC, Thiruganasambandamoorthy V, Furlan R, Costantino G. Outcomes in syncope research: a systematic review and critical appraisal. Intern Emerg Med. 2018;13(4):593–601.

    Article  Google Scholar 

  22. Leafloor CW, Hong PJ, Mukarram M, Sikora L, Elliott J, Thiruganasambandamoorthy V. Long-term outcomes in syncope patients presenting to the emergency department: a systematic review. CJEM. 2019;22:1–11.

    Google Scholar 

  23. Ruwald MH, Ruwald AC, Jons C, Lamberts M, Hansen ML, Vinther M, Køber L, Torp-Pedersen C, Hansen J, Gislason GH. Evaluation of the CHADS2 risk score on short- and long-term all-cause and cardiovascular mortality after syncope. Clin Cardiol. 2013;36(5):262–8.

    Article  Google Scholar 

  24. Probst MA, Gibson T, Weiss RE, Yagapen AN, Malveau SE, Adler DH, Bastani A, Baugh CW, Caterino JM, Clark CL, Diercks DB, Hollander JE, Nicks BA, Nishijima DK, Shah MN, Stiffler KA, Storrow AB, Wilber ST, Sun BC. Risk stratification of older adults who present to the emergency department with syncope: the FAINT score. Ann Emerg Med. 2019;75(2):147–58. pii: S0196-0644(19):31113-8.

    Article  Google Scholar 

  25. Ricci F, Sutton R, et al. Prognostic significance of non-cardiac syncope in the general population: a systematic review and meta-analysis. J Cardiovasc Electrophysiol. 2018;29(12):1641–7.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2020 Springer Nature Switzerland AG

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Parry, S.W. (2020). Prognosis of Syncope Across the Diagnostic Spectrum. In: Brignole, M., Benditt, D. (eds) Syncope. Springer, Cham. https://doi.org/10.1007/978-3-030-44507-2_3

Download citation

  • DOI: https://doi.org/10.1007/978-3-030-44507-2_3

  • Published:

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-44506-5

  • Online ISBN: 978-3-030-44507-2

  • eBook Packages: MedicineMedicine (R0)

Publish with us

Policies and ethics