Table 4. The left ventricular systolic and diastolic function parameters in patients with TTS and normal controls at different times (t/P).
| Parameters | t1/P1 | t2/P2 | t3/P3 | t4/P4 | t5/P5 | t6/P6 |
|---|---|---|---|---|---|---|
| LVEDV (mL) | 3.000/0.005 | 1.397/0.171 | 0.118/0.907 | 1.662/0.107 | 2.661/0.012 | 1.273/0.213 |
| LVESV (mL) | 14.092/<0.001 | 4.249/<0.001 | 1.208/0.235 | 8.953/<0.001 | 11.684/<0.001 | 2.795/0.009 |
| LVSV (mL) | 10.507/<0.001 | 2.295/0.028 | 1.429/0.162 | 7.023/<0.001 | 8.849/<0.001 | 1.129/0.268 |
| LVEF (%) | 28.458/<0.001 | 7.403/<0.001 | 2.012/0.052 | 18.653/<0.001 | 21.700/<0.001 | 3.868/0.001 |
| E (m/s) | 5.574/<0.001 | 6.807/<0.001 | 5.956/<0.001 | 1.97/0.058 | 0.844/0.405 | 1.028/0.312 |
| A (m/s) | 4.106/<0.001 | 3.384/0.002 | 3.335/0.003 | 0.594/0.557 | 0.942/0.353 | 0.297/0.768 |
| E/A ratio | 19.826/<0.001 | 23.444/<0.001 | 18.431/<0.001 | 3.585/0.001 | 0.400/0.692 | 2.543/0.016 |
| E’ (cm/s) | 5.949/<0.001 | 5.913/<0.001 | 4.680/<0.001 | 0.268/0.790 | 1.521/0.139 | 1.348/0.187 |
| A’ (cm/s) | 2.841/<0.001 | 2.749/<0.001 | 2.697/<0.001 | 0.230/0.820 | 0.389/0.700 | 0.160/0.874 |
| E’/A’ ratio | 23.311/<0.001 | 23.387/<0.001 | 19.73/<0.001 | 0.867/0.392 | 3.762/0.001 | 3.200/0.003 |
| E/E’ ratio | 3.483/0.001 | 0.695/0.490 | 0.035/0.972 | 2.174/0.038 | 2.849/0.008 | 0.549/0.586 |
The t1/P1, t2/P2, and t3/P3 were patients with TTS on admission and after 4 and 8 weeks vs. normal controls. The t4/P4 and t5/P5 were patients with TTS after 4 and 8 weeks vs. on admission. The t6/P6 was TTS patients after 8 weeks vs. after 4 weeks. LVESV, LVSV, and LVEF were measured by real-time 3-dimensional echocardiography. TTS, Takotsubo syndrome; LVEDV, left ventricular end-diastolic volume; LVESV, left ventricular end-systolic volume; LVSV, left ventricular stroke volume; LVEF, left ventricular ejection fraction; E, mitral inflow peak E-wave velocity; A, mitral inflow peak A-wave velocity; E’, mitral annular peak E’-wave velocity; A’, mitral annular peak A’-wave velocity.