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Updated: May 28, 2026

Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
Published on: March 21, 2013
Diagnostic value of the head-up tilt test and the R-test in patients with syncope
Riccardo Raddino1, Gregoriana Zanini, Debora Robba
1Section of Cardiovascular Disease, Department of Applied Experimental Medicine, University of Brescia, Brescia - Italy.
Abstract:
The diagnostic value of the head-up tilt test (HUTT) in discovering vasovagal syndrome depends on the pre-test probability. An accurate anamnesis and clinical examination screens the patients indicated for the HUTT. In patients with unexplained syncope, the R-test is an alternative procedure to discover its cause. In our study, we evaluated the diagnostic significance of the HUTT in a group of 211 patients and of the R-test in a subgroup of 45 patients with negative HUTT results and with negative traditional Holter ECG monitoring (24 hr).

