Prediction of Head-Up Tilt Test Result: Is it Possible?

TURK U., Alioğlu E., KIRILMAZ B., DUYGU H., TUZUN N., Tengiz I., ...More

PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY, vol.33, no.2, pp.153-158, 2010 (SCI-Expanded) identifier identifier identifier


Background: The determination of early, accurate, predictive criteria for a positive result would permit a reduction in the duration of the head-up tilt testing (HUTT). Previous studies propounded that existence of early sympathetic overreactivity (rapid and sustained increase in heart rate) during HUTT predicts positive result. However, the exact value of this variable is unknown. We analyzed the early heart rate (HR) responses to HUTT and evaluated their ability to predict HUTT result.