Table 1: Comparison between patients who were paced and those who were not.
Patients paced (n = 9) |
Patients not paced (n = 12) |
P Value |
|
Age (years) |
75 ± 15 |
69 ± 22 |
NS |
Male/Female |
1-Aug |
2-Sep |
NS |
Baseline heart rate (HR, bpm) |
58 ± 20 |
60 ± 10 |
NS |
Baseline PR (PR, ms) |
405 ± 102 |
337 ± 40 |
NS |
PR > 350 ms |
7 (78%) |
3 (25%) |
< 0.05 |
Baseline PRc1 (ms) |
395 ± 62 |
335 ± 45 |
< 0.05 |
Baseline PRc2 (ms) |
385 ± 60 |
340 ± 45 |
NS |
Peak heart rate (HRmax, bpm) |
82 ± 20 |
117 ± 27 |
< 0.01 |
PR at HRmax (PRmin, ms) |
320 ± 85 |
200 ± 40 |
< 0.05 |
PRc1 at HRmax ( ms) |
370 ± 85 |
275 ± 40 |
< 0.05 |
PRc2 at HRmax (ms) |
336 ± 132 |
218 ± 35 |
< 0.05 |
PR index (ms/10 bpm) |
40 ± 12 |
28 ± 12 |
< 0.05 |
PRc1: PR interval corrected by heart rate alone; PRc2: PR interval corrected by both age and heart rate.