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Vajapey R, Hutt Centeno E, Van Iterson EH, et al. ST-segment changes during tilt table testing for postural tachycardia syndrome: correlation with exercise stress test results. Clin Auton Res. 2019;30(1):79-83doi: 10.1007/s10286-019-00633-9.
Vajapey, R., Hutt Centeno, E., Van Iterson, E. H., Ahmed, H. M., & Mayuga, K. A. (2020). ST-segment changes during tilt table testing for postural tachycardia syndrome: correlation with exercise stress test results. Clinical autonomic research : official journal of the Clinical Autonomic Research Society, 30(1), 79-83. https://doi.org/10.1007/s10286-019-00633-9
Vajapey, Ramya, et al. "ST-segment changes during tilt table testing for postural tachycardia syndrome: correlation with exercise stress test results." Clinical autonomic research : official journal of the Clinical Autonomic Research Society vol. 30,1 (2020): 79-83. doi: https://doi.org/10.1007/s10286-019-00633-9
Vajapey R, Hutt Centeno E, Van Iterson EH, Ahmed HM, Mayuga KA. ST-segment changes during tilt table testing for postural tachycardia syndrome: correlation with exercise stress test results. Clin Auton Res. 2020 Feb;30(1):79-83. doi: 10.1007/s10286-019-00633-9. Epub 2019 Aug 21. PMID: 31435848.
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Clin Auton Res. 2020 Feb;30(1):79-83. doi: 10.1007/s10286-019-00633-9. Epub 2019 Aug 21.

ST-segment changes during tilt table testing for postural tachycardia syndrome: correlation with exercise stress test results.

Clinical autonomic research : official journal of the Clinical Autonomic Research Society

Ramya Vajapey, Erika Hutt Centeno, Erik H Van Iterson, Haitham M Ahmed, Kenneth A Mayuga

Affiliations

  1. Department of Cardiovascular Medicine, Section of Cardiac Electrophysiology and Pacing, Cleveland Clinic, 9500 Euclid Avenue, J2-2, Cleveland, OH, 44195, USA.
  2. Department of Cardiovascular Medicine, Section of Cardiac Electrophysiology and Pacing, Cleveland Clinic, 9500 Euclid Avenue, J2-2, Cleveland, OH, 44195, USA. [email protected].

PMID: 31435848 DOI: 10.1007/s10286-019-00633-9

Abstract

BACKGROUND: Prior studies have reported ECG (Electrocardiogram) changes during tilt table testing (TTT), specifically during repolarization with ST-segment and T-wave changes. The correlation with ischemic evaluation remains unclear. The purpose of this study was to analyze the prevalence of ST-segment changes during TTT in a young, otherwise healthy population of patients with postural tachycardia syndrome (POTS), and correlate them with exercise stress test results.

METHODS: Two hundred and fifty-five patients with POTS who underwent TTT and an exercise treadmill test (ETT) were analyzed.

RESULTS: Forty-five had ST-segment changes/depressions during TTT (91% female, average age 36 years). Of the 45, three had ST-segment depression during ETT; all three had negative exercise stress echocardiograms (ESEs). Two others had ST-segment depressions on ETT (but not TTT), with negative ESEs.

CONCLUSION: In a cohort of young, female, otherwise healthy patients with POTS, ST-segment changes occurred in a significant portion (18%) of patients during TTT. When evaluated with exercise stress testing, these patients had no evidence of underlying ischemia on ETT or ESE.

Keywords: Electrocardiogram; Exercise stress test; Postural tachycardia syndrome; Tilt table test

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