Table 4 CMR Strain and Timing Parameters before and after PEA
Strain and timing | Pre PEA | Post PEA | Mean Change (Postop to Preop) | p-Value |
|---|---|---|---|---|
LV peak strain (%) | -19 ± 3 | -20 ± 4 | -0.5 ± 5 | .70 |
RV peak strain (%) | -13 ± 3 | -17 ± 3 | -4 ± 3 | 0.001 |
SP peak strain (%) | -14 ± 3 | -16 ± 4 | -2 ± 3 | 0.09 |
RR (ms) | 823 ± 70 | 840 ± 90 | 17 ± 134 | 0.64 |
Tmax LVSB (ms) | 397 ± 77 | Not observed | - | - |
TpeakRV (ms) | 405 ± 61 | 352 ± 67 | -53 ± 80 | 0.02 |
TpeakLV (ms) | 310 ± 46 | 356 ± 45 | 46 ± 80 | 0.09 |
TpeakSP (ms) | 296 ± 43 | 320 ± 58 | -23 ± 82 | 0.33 |
LV to RV delay in Tpeak (ms) | 97 ± 49 | -4 ± 51 | -101 ± 49 | < 0.001 |
SP to RV delay in Tpeak (ms) | 110 ± 78 | 25 ± 51 | -85 ± 84 | 0.004 |