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Table 3 Comparison of HRV before and after propanolol

From: Effect of propranolol on heart rate variability in hyperthyroidism

Variable

Before

After

p

RMSSD (ms)

22.3 ± 13.4

25.2 ± 12.1

0.17

SDNN index

34.1 ± 14.6

35.8 ± 11.7

0.75

LF (n.u.)

51.2 ± 24.5

50.8 ± 22

0.91

HF (n.u.)

28.6 ± 19.5

31.9 ± 18.6

0.46

LF/HF

4.3 ± 5.6

3.1 ± 3.2

0.24

  1. RR R to R interval, HR heart rate, RMSSD root-mean-square of successive differences, SDNN standard deviation of all normal R to R interval, LF low frequency, HF high frequency
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BMC Research Notes

ISSN: 1756-0500

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