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. Author manuscript; available in PMC: 2023 May 1.
Published in final edited form as: Hypertension. 2022 Mar 2;79(5):e89–e99. doi: 10.1161/HYPERTENSIONAHA.121.17852

Figure 1. Hemodynamic and Neurohormonal Changes in POTS vs. Controls During Orthostatic Stress.

Figure 1.

Systolic (SBP, top of box) and diastolic (DBP, bottom of box) blood pressure were similar while supine and standing between POTS and controls (A); POTS patients showed a significantly greater increase in HR at 10-min standing compared with controls, P<0.001 (B); supine plasma norepinephrine (NE) was similar between POTS and controls, but significantly elevated while standing is POTS vs. controls, P=0.004 (C). HR- heart rate, SBP- systolic blood pressure, DBP- diastolic blood pressure, NE- norepinephrine. P-values obtained using student t-test.