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Table 3 Electrocardiographic characteristics

From: Predictive factors for pacemaker requirement after transcatheter aortic valve implantation

 

Prior TAVI

After TAVI

7-day follow-up

Rhythm

Sinus

18 (78.3)

18 (78.3)

14 (63.7)

20 (91.0)

20 (91.0)

19 (82.7) *

Atrial fibrillation

5 (21.8)

5 (21.8)

5 (21.8)

2 (9.1)

2 (9.1)

5 (9.1)

Heart rate

72.7 ± 12.6

68.5 ± 13.8

66.0 ± 16.9

67.5 ± 10.5

63.2 ± 14.4

65.7 ± 13.1

Surface ECG

PQ interval

197.1 ± 51.2

230.42 ± 40.94

243.05 ± 34.59

154.1 ± 32.1 *

167.37 ± 37.05 *

168.56 ± 30.41 *

QRS width

97.0 ± 15.0

139.04 ± 31.86

162.96 ± 33.59

95.3 ± 14.4

110.27 ± 18.38 *

120.00 ± 24.17 *

QT interval

388.2 ± 29.3

409.91 ± 28.67

408.52 ± 23.22

398.6 ± 32.8

407.36 ± 32.99

405.14 ± 32.03

Left-BBB

0 (0)

16 (69.6)

20 (87.0)

1 (4.5)

4 (18.2) *

7 (31.9) *

Right-BBB

1 (4.35)

0 (0)

0 (0)

1 (4.5)

1 (4.6)

1 (4.6)

First-degree block

5 (21.8)

8 (34.8)

18 (78.3)

3 (13.7) *

3 (13.7) *

4 (18.2) *

Second-degree block #

0 (0)

4 (17.4)

4 (17.4)

0 (0)

0 (0) *

0 (0) *

Complete block

0 (0)

4 (17.4)

6 (26.1)

0 (0)

0 (0) *

0 (0) *

Intracardiac measurement

SNRT

1086.8 ± 171.2

1093.89 ± 154.58

1122.11 ± 154.47

1045.6 ± 166.9

1050.56 ± 163.40

1070.59 ± 154.13

c-SNRT

487.0 ± 54.3

492.94 ± 43.88

498.13 ± 42.72

462.0 ± 68.4

491.12 ± 42.04

488.59 ± 42.48

AH interval

135.5 ± 44.7

139.32 ± 36.62

153.61 ± 43.40

105.8 ± 31.4 *

114.50 ± 38.55 *

116.06 ± 31.23 *

HV interval

58.5 ± 12.5

74.00 ± 13.51

81.68 ± 17.76

48.7 ± 6.9 *

55.27 ± 9.20 *

56.76 ± 8.45 *

Antegrade AV ERP

410.0 ± 42.6

470.00 ± 118.57

469.81 ± 45.75

394.4 ± 32.6

407.78 ± 32.64 *

414.71 ± 31.45 *

Retrograde AV ERP

442.6 ± 38.0

470.56 ± 45.10

494.00 ± 59.33

420.0 ± 34.3

436.67 ± 35.48 *

441.76 ± 36.27 *

  1. * p-value <0.05.
  2. italic : N-PM-group.
  3. normal: PM-group.
  4. # 2nd degree (type 2) AV-block.