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Tilt testing for syncope: a reappraisal.

Robert Sheldon1

  • 1Libin Cardiovascular Institute of Alberta, University of Calgary, Calgary, Alberta, Canada. sheldon@ucalgary.ca

Current Opinion in Cardiology
|December 15, 2004
PubMed
Summary
This summary is machine-generated.

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Tilt-table tests aid syncope research but lack proven clinical utility. Further validation is needed, requiring evidence-based criteria for neurally mediated syncope diagnosis.

Area of Science:

  • Cardiology
  • Neurology
  • Diagnostic Testing

Background:

  • Syncope, or fainting, is a common condition often caused by neurally mediated reflex syncope.
  • Tilt-table testing has been a primary diagnostic tool for evaluating syncope.

Purpose of the Study:

  • To review the contributions of tilt-table tests in syncope diagnosis.
  • To critically assess the validity and clinical usefulness of tilt-table tests.

Main Methods:

  • Review of existing literature on tilt-table testing in neurally mediated syncope.
  • Critical analysis of the methodology, reproducibility, and prognostic power of tilt tests.

Main Results:

  • Tilt tests have enhanced syncope patient care and research by providing study populations.

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  • However, tilt tests suffer from methodological variability, moderate reproducibility, and lack of validation against gold standards.
  • The neurally mediated syncope syndrome is often defined by the test itself, not by clinical criteria.

    • Conclusions:

    • Tilt-table tests have facilitated clinical study of neurally mediated syncope.
    • The true clinical usefulness of tilt tests remains uncertain pending the development of evidence-based diagnostic criteria for the syndrome.