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Updated: Nov 16, 2025

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
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Tilt testing remains a valuable asset.

Richard Sutton1, Artur Fedorowski2, Brian Olshansky3

  • 1Department of Cardiology, Imperial College, London, UK.

European Heart Journal
|February 24, 2021
PubMed
Summary
This summary is machine-generated.

The head-up tilt test (TT) is a valuable tool for diagnosing unknown syncope causes. It assesses cardiovascular responses and aids in understanding vasovagal reflex mechanisms, improving patient care.

Keywords:
Active standECG-loop recordersOrthostatic hypotensionPostural orthostatic tachycardia syndromePsychogenic pseudosyncopeSyncopeTilt-table testVasovagal syncope

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Area of Science:

  • Cardiology
  • Autonomic Neuroscience

Background:

  • The head-up tilt test (TT) has a long history (>50 years) in physiological research.
  • It models cardiovascular adaptation to positional changes and hemorrhage.
  • TT evaluates hemodynamic and neuroendocrine responses in various conditions like heart failure and hypertension.

Purpose of the Study:

  • To highlight the diagnostic value of the head-up tilt test (TT) in evaluating syncope of unknown origin.
  • To underscore TT's role in understanding the pathophysiology of syncope and vasovagal responses.

Main Methods:

  • Utilizing head-up tilt testing to assess autonomic nervous system function.
  • Incorporating clinical experience and evidence-based guidelines for TT methodology and interpretation.

Main Results:

  • TT has been instrumental in identifying vasovagal reflex syncope.
  • Clinical experience confirms the diagnostic utility of TT for unexplained syncope.
  • Guidelines now provide standardized approaches to TT.

Conclusions:

  • Head-up tilt testing remains a crucial clinical asset for syncope evaluation.
  • TT has significantly improved the understanding and management of syncopal patients.
  • It aids in appreciating the pathophysiology of collapse and autonomic dysfunction.