Table 2. Follow-up data of echocardiography.
| Parameters | Follow-up time (months) | Observation group (n=30) | Control group (n=30) | P value |
|---|---|---|---|---|
| LVEDD (mm) | T0 | 67.8±10.3 | 68.0±11.4 | 0.93 |
| T1 | 64.8±12.3 | 63.2±13.8 | 0.62 | |
| T3 | 62.3±15.7 | 62.1±14.6 | 0.97 | |
| T6 | 61.7±14.6* | 61.4±11.0* | 0.93 | |
| LVESD (mm) | T0 | 56.8±8.5 | 57.3±8.9 | 0.85 |
| T1 | 54.1±6.3 | 54.4±7.5 | 0.84 | |
| T3 | 53.6±11.1 | 54.1±9.4 | 0.85 | |
| T6 | 51.1±9.5* | 51.0±10.7* | 0.96 | |
| E/A | T0 | 0.43±0.19 | 0.46±0.16 | 0.51 |
| T1 | 0.47±0.21 | 0.48±0.19 | 0.85 | |
| T3 | 0.54±0.27 | 0.53±0.31 | 0.89 | |
| T6 | 0.63±0.32* | 0.59±0.29* | 0.51 | |
| Average E/e' | T0 | 17.5±4.3 | 18.1±5.2 | 0.63 |
| T1 | 17.3±4.5 | 17.9±4.9 | 0.62 | |
| T3 | 16.4±5.5 | 16.1±5.7 | 0.84 | |
| T6 | 14.4±7.2* | 14.6±7.8* | 0.92 | |
| 2D LVEF (%) | T0 | 32.5±5.2 | 30.9±4.8 | 0.23 |
| T1 | 33.9±8.8 | 32.8±5.9 | 0.55 | |
| T3 | 35.1±9.7 | 34.5±8.3 | 0.79 | |
| T6 | 38.4±9.5* | 37.9±10.7* | 0.86 | |
| SBP (mmHg) | T0 | 98.6±7.5 | 97.2±6.9 | 0.46 |
| T1 | 99.4±7.6 | 98.3±6.9 | 0.56 | |
| T3 | 104.1±7.9* | 102.1±7.2* | 0.31 | |
| T6 | 110.5±9.5* | 106.9±8.7* | 0.13 | |
| DBP (mmHg) | T0 | 63.4±4.3 | 61.7±3.8 | 0.11 |
| T1 | 64.7±4.9 | 63.5±4.6 | 0.33 | |
| T3 | 64.3±5.2 | 62.3±4.8 | 0.13 | |
| T6 | 67.6±5.9* | 66.8±5.1* | 0.58 | |
| LVGLS (%) | T0 | −9.3±1.5 | −9.0±2.0 | 0.44 |
| T1 | −9.9±1.9 | −9.0±3.5 | 0.23 | |
| T3 | −11.8±2.9* | −11.3±3.0* | 0.44 | |
| T6 | −15.4±1.9* | −14.4±2.5* | 0.07 | |
| GWI (mmHg%) | T0 | 788±364 | 783±365 | 0.96 |
| T1 | 797±388 | 792±354 | 0.96 | |
| T3 | 943±416 | 896±373 | 0.65 | |
| T6 | 1,204±336* | 987±417* | 0.03 | |
| GCW (mmHg%) | T0 | 1,083±443 | 1,095±396 | 0.91 |
| T1 | 1,085±394 | 1,107±373 | 0.83 | |
| T3 | 1,198±439 | 1,196±416 | 0.99 | |
| T6 | 1,401±348* | 1,206±356 | 0.04 | |
| GWW (mmHg%) | T0 | 261 [201, 386] | 272 [232, 398] | 0.87 |
| T1 | 226 [177, 354] | 233 [164, 377] | 0.99 | |
| T3 | 187 [127, 349] | 194 [132, 366] | 0.93 | |
| T6 | 132 [89, 316]* | 167 [94, 345]* | 0.80 | |
| GWE (%) | T0 | 63 [52, 81] | 61 [50, 83] | 0.99 |
| T1 | 64 [56, 83] | 65 [49, 81] | 0.99 | |
| T3 | 71 [57, 91] | 68 [56, 88] | 0.98 | |
| T6 | 79 [64, 94] | 74 [61, 89] | 0.98 |
Data are presented as mean ± standard deviation or median [interquartile range]. *, P<0.05 compared with T0. T0: before first discharge; T1: 1 month after discharge; T3: 3 months after discharge; T6: 6 months after discharge. LVEDD, left ventricular end-diastolic diameter; LVESD, left ventricular end-systolic diameter; E/A: the ratio of the rate of blood flow for rapid ventricular filling in early diastole to the rate of blood flow in mid- to late diastole; E/e': the ratio of peak early diastolic mitral flow velocity E to peak early diastolic mitral annular velocity e'; 2D, two-dimensional; LVEF, left ventricular ejection fraction; SBP, systolic blood pressure; DBP, diastolic blood pressure; LVGLS, left ventricular global longitudinal strain; GWI, global work index; GCW, global constructive work; GWW, global wasted work; GWE, global work efficiency.