Table 3 Duration of S1, S2, systolic murmur and relative duration of systolic murmur
From: Phono-spectrographic analysis of heart murmur in children
Group | Duration | |||
|---|---|---|---|---|
| Â | S1 (ms) | S2 (ms) | Murmur (ms) | Murmur (%) |
Vibratory | 81 ± 15 | 69 ± 12 | 100 ± 21 | 53 ± 12 |
Ejection | 92 ± 16 | 75 ± 14 | 84 ± 36 | 44 ± 17 |
Pathological | 87 ± 19 | 77 ± 17 | 147 ± 49 | 78 ± 21 |
p-value | 0.47 | 0.029 | < 0.001 | < 0.001 |