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Table 3 Electrocardiographic Indices and Electrophysiologic Data in C57BL/6J Wildtype Sham and Paced Mice

From: Short-term pacing in the mouse alters cardiac expression of connexin43

 

Sham-Paced, 6 hr

Paced, 6 hr

QRS Duration, ms

11.1 ± 0.7 (-1.3 ± 0.7)

14.1 ± 1.0 (0.9 ± 1.1)

RR Interval, ms

144.6 ± 8.0 (12.6 ± 8.3)

144.6 ± 4.7 (0.9 ± 7.0)

QTc, ms

97.7 ± 4.2 (-6.7 ± 5.7)

106.2 ± 2.3 (0.6 ± 4.1)

VERP100, ms

34.3 ± 4.5

34.2 ± 3.0

VERP80, ms

36.3 ± 4.3

35.0 ± 3.6

  1. Post-pacing data (and changes from pre-pacing baseline) are presented as group means ± SEM. Comparisons between groups were performed with unpaired T-tests. For electrocardiographic indices, n = 8 sham and 14 paced; for electrophysiologic data (VERP), n = 5 in each group. VERP, ventricular effective refractory period.
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BMC Physiology

ISSN: 1472-6793

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