| Timing reduced pre‐operative HRV | 7 days after operation | p (CI) | 3 months after operation | p (CI) | 6 months after operation | p (CI) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| AF (+) (n = 16) | AF (−) (n = 101) | AF (+) (n = 16) | AF (−) (n = 100) | AF (+) (n = 20) | AF (−) (n = 96) | |||||
|
ASDNN (n,%) |
< 30 ms |
5 (22.70) |
17 (77.30) |
> 0.05 (0.69–7.29) |
8 (38.10) | 13 (61.90) |
<0.05* (2.14 – 20.92) |
7 (33.30) | 14 (66.70) |
< 0.05* (1.0–9.28) |
| ≥ 30 ms |
11 (11.60) |
84 (88.40) |
8 (8.40) | 87 (91.60) | 13 (13.70) | 82 (86.30) | ||||
|
rMSSD (n,%) |
< 15 ms |
7 (41.20) |
10 (58.80) |
<0.05* (2.16–23.12) |
5 (31.20) | 11 (68.80) |
<0.05* (1.07–12.56) |
4 (25.00) | 12 (75.00) |
>0.05 (0.50–6.11) |
| ≥ 15 ms |
9 (9.00) |
91 (91.00) |
11 (11.00) | 89 (89.00) | 16 (16.00) | 84 (84.00) | ||||
|
pNN 50 (n,%) |
< 0.75% | 7 (28.00) | 18 (72.00) |
<0.05* (1.18–10.89) |
5 (20.80) | 19 (79.20) |
> 0.05 0.60–6.23 |
6 (25.00) | 18 (75.00) |
>0.05 (0.62–5.49) |
| ≥ 0.75% |
9 (9.80) |
83 (90.2) | 11 (12.00) | 81 (88.00) | 14 (15.20) | 78 (84.80) | ||||
|
SDNN (n,%) |
< 50 ms | 4 (44.40) | 5 (55.60) |
<0.05* (1.50–27.15) |
6 (75.00) | 2 (25.00) |
< 0.01* (5.22 – 16.4) |
4 (50.00) | 4 (50.00) |
< 0.05* (1.30–25.36) |
| ≥ 50 ms | 12 (11.1) | 96 (88.9) | 10 (9.30) | 98 (90.70) | 16 (14.80) | 92 (85.20) | ||||
|
SDNN (n,%) |
≥ 93 ms | 11 (20.8) | 42 (79.2) |
<0.05* (1.0–9.56) |
10 (19.2) | 42 (80.8) |
>0.05 (0.77–6.82) |
12 (23.1) | 40 (76.9) |
>0.05 (0.78–5.60) |
| < 93 ms |
5 (7.8) |
59 (92.2) |
6 (9.4) |
58 (90.6) |
8 (12.5) |
56 (87.5) | ||||
|
SDANN (n,%) |
< 40 ms | 3 (60.00) | 2 (40.00) |
<0.05* (1.74–74.88) |
2 (40.00) | 3 (60.00) |
>0.05 (0.70–30.11) |
2 (40.00) | 3 (60.00) |
>0.05 (0.53–2210) |
| ≥ 40 ms | 13 (11.60) | 99 (88.40) | 14 (12.60) | 97 (87.40) | 18 (16.20) | 93 (83.80) | ||||
Entries are numbers of patients. p‐values are nominal. CI: confidence of interval. The cut‐off for each index of reduced HRV time domain as recommended. * Statistically significant difference.