M mode ventricular long axis function in 18 normal children, compared with 17 device and 12 surgical patients, before intervention
| Right | Septum | Left | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects | TE (cm) | PSR (cm/s) | PLR (cm/s) | TE (cm) | PSR (cm/s) | PLR (cm/s) | TE (cm) | PSR (cm/s) | PLR (cm/s) |
| Measures are mean (SD); p, probability, unpaired t test. | |||||||||
| PLR, peak lengthening rate; PSR, peak shortening rate; TE, total excursion. | |||||||||
| Normal (N) | 1.90 (0.40) | 10.60 (2.00) | 11.00 (1.50) | 1.23 (0.15) | 6.00 (1.20) | 8.30 (1.60) | 1.27 (0.15) | 6.20 (1.20) | 9.60 (2.00) |
| Device (D) | 2.34 (0.31) | 12.21 (1.85) | 12.89 (3.42) | 1.27 (0.26) | 6.11 (1.16) | 8.30 (1.99) | 1.28 (0.31) | 6.48 (1.53) | 10.18 (3.24) |
| Surgical (S) | 2.65 (0.34) | 13.90 (1.51) | 14.84 (1.77) | 1.21 (0.21) | 5.70 (0.88) | 9.17 (2.08) | 1.12 (0.20) | 6.04 (1.37) | 7.60 (2.24) |
| p: N v D | <0.001 | 0.015 | 0.035 | 0.350 | >0.5 | >0.5 | >0.5 | >0.5 | >0.5 |
| p: N v S | <0.001 | <0.001 | <0.001 | >0.5 | 0.450 | 0.200 | 0.030 | >0.5 | 0.015 |
| p: D v S | 0.020 | 0.012 | 0.056 | 0.510 | 0.282 | 0.269 | 0.210 | 0.571 | 0.082 |