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Table 2 Sympathetic tone, as measured by baseline plasma catecholamine levels and 24-h heart rate variability, in endstage renal disease (ESRD) patients and controls.

From: Sympathetic hyperactivity influences chemosensor function in patients with end-stage renal disease

 

Controls

(n = 10)

ESRD

(n = 10)

Plasma catecholamine levels

  

   Norepinephrine, nmol/L

1.6 ± 0.4

5.8 ± 0.6*

   Epinephrine, pmol/L

342 ± 75

742 ± 281

Heart rate variability

   SDNN, ms

126.4 ± 19

100.2 ± 12*

   SDANN, ms

121 ± 20

95.7 ± 10

   RMSSD, ms

27.1 ± 8

15.7 ± 2*

   Triangular index

33.6 ± 4

25.7 ± 3*

  1. Values are means ± SEM. *P < 0.05.