Which cardiovascular tests may be indicated in the workup of autonomic failure syndrome?

Updated: Oct 21, 2018
  • Author: Mohini Gurme, MD; Chief Editor: Selim R Benbadis, MD  more...
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Answer

See the list below:

  • In addition to supine and standing blood pressure and pulse measurements, additional cardiovascular evaluation (eg, ECG, cardiac telemetry) may be indicated to identify tachycardia, bradycardia, or other dysrhythmias.

    • Assessment of heart rate variability with deep breathing or Valsalva maneuver can further define the extent of cardiac involvement.

    • If the patient is unable to stand, 45° head-up tilt testing can be performed.

    • Patients with POTS have an exaggerated increase in heart rate on tilt table testing, defined as an increase of greater than 30 bpm or an increase to greater than 120 bpm within 10 minutes of tilt.


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