Key result
Patients with POTS demonstrated abnormal peripheral vascular physiology with marked lower extremity pooling during upright tilt, in contrast to normal physiology in neurocardiogenic syncope.
Why the study?
Does peripheral vascular physiology differ between patients with postural tachycardia syndrome (POTS) and neurocardiogenic syncope?
Observational (n=64)
Does peripheral vascular physiology differ between patients with postural tachycardia syndrome (POTS) and neurocardiogenic syncope?
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May aid POTS diagnosis via vascular assessment; leaves open causal mechanisms and therapy targets.
Stewart et al. (2003) conducted an observational in Postural tachycardia syndrome and neurocardiogenic syncope (n=64). Postural tachycardia syndrome (POTS) vs. Neurocardiogenic syncope and healthy controls was evaluated on Peripheral vascular physiology including calf blood flow, arterial and venous resistance, and venous pressure. Patients with POTS demonstrated abnormal peripheral vascular physiology with marked lower extremity pooling during upright tilt, in contrast to normal physiology in neurocardiogenic syncope.
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