The Journal of Practical Medicine ›› 2026, Vol. 42 ›› Issue (13): 2291-2299.doi: 10.3969/j.issn.1006-5725.2026.13.004
• Feature Reports:Cardiovascular diseases • Previous Articles
Min YANG,Hongbo QIAN,Dafa ZHANG,Yingjing GUI(
)
Received:2026-03-23
Online:2026-07-10
Published:2026-07-14
Contact:
Yingjing GUI
E-mail:guiyingjing123@126.com
CLC Number:
Min YANG,Hongbo QIAN,Dafa ZHANG,Yingjing GUI. Preoperative left ventricular end-systolic dimension predicts postoperative ejection fraction recovery trajectory and clinical outcomes in mitral regurgitation[J]. The Journal of Practical Medicine, 2026, 42(13): 2291-2299.
Tab.1
Comparison of baseline characteristics among different LVESD groups"
| 变量 | Q1组(n = 39) | Q2组(n = 39) | Q3组(n = 39) | Q4组(n = 40) | H/F/χ2值 | P值 |
|---|---|---|---|---|---|---|
| 年龄/岁 | 58.24 ± 9.37 | 59.83 ± 10.12 | 61.95 ± 10.28 | 63.08 ± 9.97 | 2.109 | 0.101 |
| 性别/例 | 0.365 | 0.947 | ||||
| 男 | 22 | 25 | 24 | 23 | ||
| 女 | 17 | 14 | 15 | 17 | ||
| MR类型/[例(%)] | 11.872 | 0.008 | ||||
| 退行性 | 31(79.49) | 27(69.23) | 22(56.41) | 18(45.00) | ||
| 功能性 | 8(20.51) | 12(30.77) | 17(43.59) | 22(55.00) | ||
| MR程度/[例(%)] | 0.926 | 0.819 | ||||
| 中度 | 14(35.90) | 12(30.77) | 11(28.21) | 11(27.50) | ||
| 重度 | 25(64.10) | 27(69.23) | 28(71.79) | 29(72.50) | ||
| AF/[例(%)] | 7(17.95) | 11(28.21) | 15(38.46) | 20(50.00) | 10.483 | 0.015 |
| CAD/[例(%)] | 5(12.82) | 7(17.95) | 9(23.08) | 12(30.00) | 3.782 | 0.286 |
| 高血压/[例(%)] | 14(35.90) | 17(43.59) | 19(48.72) | 22(55.00) | 3.241 | 0.356 |
| 手术方式/[例(%)] | 4.925 | 0.177 | ||||
| 置换 | 10(25.64) | 13(33.33) | 16(41.03) | 19(47.50) | ||
| 修复 | 29(74.36) | 26(66.67) | 23(58.97) | 21(52.50) | ||
| CPB时间/min | 101.85 ± 28.47 | 107.63 ± 29.88 | 114.21 ± 31.05 | 119.38 ± 32.76 | 2.876 | 0.038 |
| NT-proBNP[M(P25, P75)]/(pg/mL) | 682.24 (408.50,1 047.33) | 823.71 (518.66,1 348.92) | 1 125.48 (715.33,1 772.61) | 1 562.37 (975.42,2 475.18) | 41.356 | 0.001 |
| LVESD/mm | 30.12 ± 2.08 | 34.48 ± 1.12 | 38.41 ± 1.18 | 45.18 ± 4.07 | 315.627 | 0.001 |
| LVEDD/mm | 54.79 ± 4.88 | 58.87 ± 5.21 | 61.76 ± 5.43 | 64.23 ± 6.09 | 22.415 | 0.001 |
| LVEF/% | 63.75 ± 6.22 | 59.81 ± 6.79 | 56.08 ± 7.09 | 50.15 ± 8.31 | 37.224 | 0.001 |
| LAVI/(mL/m2) | 42.08 ± 11.17 | 47.62 ± 12.08 | 51.87 ± 13.48 | 55.25 ± 14.19 | 8.764 | 0.001 |
| PASP/mmHg | 34.25 ± 8.07 | 38.08 ± 9.23 | 41.96 ± 10.12 | 46.07 ± 11.28 | 11.328 | 0.001 |
Tab.2
Comparison of postoperative LVEF at different time windows among LVESD quartile groups"
| 时间窗/组内变化 | Q1组(n = 39) | Q2组(n = 39) | Q3组(n = 39) | Q4组(n = 40) | F值 | P值 |
|---|---|---|---|---|---|---|
| 出院前LVEF/% | 64.58 ± 6.12 | 60.47 ± 6.68 | 56.82 ± 7.03 | 51.14 ± 8.12 | 39.724 | 0.001 |
| 术后3个月LVEF/% | 66.36 ± 5.81 | 62.31 ± 6.32 | 58.85 ± 6.76 | 53.62 ± 7.94 | 41.893 | 0.001 |
| 术后6个月LVEF/% | 67.09 ± 5.57 | 63.24 ± 6.10 | 59.83 ± 6.49 | 54.75 ± 7.64 | 46.577 | 0.001 |
| 术后3个月-出院前差值(95%CI) | 1.78(1.02 ~ 2.54) | 1.84(1.05 ~ 2.63) | 2.03(1.16 ~ 2.90) | 2.48(1.50 ~ 3.46) | ||
| 校正后P值 | 0.001 | 0.001 | 0.001 | 0.001 | ||
| 术后6个月-出院前差值(95%CI) | 2.51(1.61 ~ 3.41) | 2.77(1.81 ~ 3.73) | 3.01(1.88 ~ 4.14) | 3.61(2.24 ~ 4.98) | ||
| 校正后P值 | 0.001 | 0.001 | 0.001 | 0.001 | ||
| 组内时间效应F值 | 18.236 | 21.417 | 24.908 | 27.635 | ||
| 组内时间效应P值 | 0.001 | 0.001 | 0.001 | 0.001 |
Tab.3
Marginal means of LVEF in each group at different time windows and the difference between Q4 and Q1"
| 时间窗 | 模型1 | ||||||
|---|---|---|---|---|---|---|---|
| Q1组边际均值/% | Q2组边际均值/% | Q3组边际均值/% | Q4组边际均值/% | Q4-Q1差值 | 95%CI | P值 | |
| 出院前 | 64.52 ± 0.624 | 60.47 ± 0.648 | 56.95 ± 0.673 | 51.42 ± 0.718 | -13.10 | -15.31 ~ -10.89 | 0.001 |
| 术后3个月 | 66.28 ± 0.698 | 62.24 ± 0.726 | 59.11 ± 0.763 | 53.99 ± 0.817 | -12.29 | -14.68 ~ -9.90 | 0.001 |
| 术后6个月 | 67.01 ± 0.758 | 63.11 ± 0.791 | 60.04 ± 0.838 | 54.98 ± 0.901 | -12.03 | -14.66 ~ -9.40 | 0.001 |
| 时间窗 | 模型2 | ||||||
| Q1组边际均值/% | Q2组边际均值/% | Q3组边际均值/% | Q4组边际均值/% | Q4-Q1差值 | 95%CI | P值 | |
| 出院前 | 64.43 ± 0.619 | 60.38 ± 0.642 | 56.89 ± 0.668 | 51.33 ± 0.709 | -13.10 | -15.27 ~ -10.93 | 0.001 |
| 术后3个月 | 66.19 ± 0.691 | 62.15 ± 0.719 | 59.05 ± 0.755 | 53.91 ± 0.808 | -12.28 | -14.61 ~ -9.95 | 0.001 |
| 术后6个月 | 66.92 ± 0.749 | 63.02 ± 0.782 | 59.98 ± 0.830 | 54.89 ± 0.889 | -12.03 | -14.59 ~ -9.47 | 0.001 |
Tab.5
Cox regression analysis of LVESD quartiles and the risk of composite endpoint"
| 分层 | 未校正HR(95%CI) | P值 | 模型1 HR(95%CI) | P值 | 模型2 HR(95%CI) | P值 |
|---|---|---|---|---|---|---|
| Q1 | 1.000(参考) | 1.000(参考) | 1.000(参考) | |||
| Q2 | 1.812(0.612 ~ 5.368) | 0.280 | 1.402(0.520 ~ 3.780) | 0.504 | 1.385(0.509 ~ 3.768) | 0.524 |
| Q3 | 2.845(0.905 ~ 8.945) | 0.074 | 1.956(0.825 ~ 4.639) | 0.128 | 1.902(0.795 ~ 4.552) | 0.148 |
| Q4 | 4.826(1.521 ~ 15.308) | 0.008 | 2.512(1.182 ~ 5.339) | 0.017 | 2.388(1.112 ~ 5.127) | 0.026 |
| 趋势P值 | 0.006 | 0.012 | 0.018 |
Tab.6
Comparison of perioperative interventions and postoperative remedial treatments among different LVESD groups"
| 指标 | Q1组(n = 39) | Q2组(n = 39) | Q3组(n = 39) | Q4组(n = 40) | χ2/F值 | P值 |
|---|---|---|---|---|---|---|
| 二尖瓣修复 | 29(74.36) | 26(66.67) | 23(58.97) | 21(52.50) | 4.925 | 0.177 |
| 二尖瓣置换 | 10(25.64) | 13(33.33) | 16(41.03) | 19(47.50) | 4.925 | 0.177 |
| 同期三尖瓣成形 | 9(23.08) | 11(28.21) | 13(33.33) | 16(40.00) | 2.799 | 0.424 |
| 术后残余反流 ≤ 轻度 | 38(97.44) | 37(94.87) | 37(94.87) | 37(92.50) | 1.164 | 0.762 |
| 正性肌力药支持 | 6(15.38) | 8(20.51) | 10(25.64) | 13(32.50) | 3.709 | 0.295 |
| 机械通气时间 24 h | 3(7.69) | 4(10.26) | 5(12.82) | 7(17.50) | 1.890 | 0.596 |
| 术后ICU停留时间(x ± s)/d | 2.15 ± 0.84 | 2.31 ± 0.92 | 2.48 ± 1.05 | 2.66 ± 1.18 | 1.769 | 0.156 |
| 出院时利尿剂 | 15(38.46) | 18(46.15) | 22(56.41) | 27(67.50) | 7.548 | 0.056 |
| 出院时ACEI/ARB/ARNI | 12(30.77) | 15(38.46) | 18(46.15) | 22(55.00) | 4.803 | 0.187 |
| 出院时β受体阻滞剂 | 10(25.64) | 12(30.77) | 15(38.46) | 18(45.00) | 3.733 | 0.292 |
| 出院时醛固酮受体拮抗剂 | 8(20.51) | 10(25.64) | 13(33.33) | 17(42.50) | 4.844 | 0.184 |
| 房颤患者抗凝或节律/室率控制 | 7/7(100.00) | 11/11(100.00) | 14/15(93.33) | 19/20(95.00) | 1.105 | 0.776 |
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