射频消融术后房颤患者左房结构和功能的超声评价

发布时间：2018-02-21 10:08

本文关键词： 超声心动图描记术心房颤动射频消融术心房功能左　出处：《中国超声医学杂志》2015年08期 　论文类型：期刊论文

【摘要】：目的应用实时三维超声心动图(RT-3DE)及二维斑点追踪成像(2D-STI)技术评价射频消融术对心房颤动(房颤)患者左房结构和功能的影响。方法对35例因房颤行射频消融术的患者于术前、术后3d、1个月行超声心动图检查。应用RT-3DE计算左房最大容积指数(LAVImax)、左房最小容积指数(LAVImin)、左房总射血分数(LATEF)、左房扩张指数(LAEI);应用2D-STI计算收缩期、舒张早期左房平均峰值应变(mSs、mSe)、应变率(mSRs、mSRe)及左房僵硬度(LASt)。结果 (1)与术前相比,消融术后3d左房内径和LAVImax增大,mSs、mSe、mSRs、mSRe减低,LASt增高(均P0.01);(2)与术后3d比较,术后1个月左房内径、LAVImax、LAVImin减小,mSs、mSe、mSRs、mSRe增高,LASt减低(均P0.01);(3)与术前比较,术后1个月前后径、左右径、LAVImax、LAVImin减小(均P0.01)。结论房颤患者消融术后3d处于心房顿抑期,左房储存、管道功能恶化,LAVImax增大,LASt增高。术后1个月左房容积减小,左房储存、管道功能有所改善,LASt减低。
[Abstract]:Objective to evaluate the effect of radiofrequency ablation on the structure and function of left atrium in patients with atrial fibrillation (AF) by using real-time three-dimensional echocardiography (RT-3DE) and two-dimensional speckle tracing imaging (2D-STI). Methods 35 patients with atrial fibrillation underwent radiofrequency ablation before operation. Three days after operation, echocardiography was performed 1 month after operation. The left atrial maximal volume index (LAVI max1), the left atrial minimum volume index (LVMI), the left atrial total ejection fraction (LVEF), the left atrial dilatation index (LAEI) were calculated by RT-3DE, and the systolic phase was calculated by 2D-STI. Results: the mean peak strain of left atrium in early diastolic period (mSssSm Sre), strain rate (mSRs) and left atrial stiffness (LAS2) were compared with those before operation. Results: compared with preoperative, the diameter of left atrium and the increase of LAVImax in left atrium at 3 days after ablation decreased the increase of LASt (all P0.01MSR2), compared with 3 days after operation. 1 month after operation, the left atrial diameter and the left atrium diameter of LAVImaxand LAVImin decreased significantly (P < 0. 01). Conclusion the left and right atrium diameter of patients with atrial fibrillation was in atrial depression and left atrium storage at 3 days after Atrial Ablation, compared with that before and 1 month after operation (P 0. 01), and the diameter of left and right atrium was decreased 1 month after operation (P 0. 01. conclusion: the patients with atrial fibrillation are in atrial depression and left atrium storage at 3 days after Atrial Ablation, and the left atrium is stored in the left atrium after Atrial Atrial Ablation. The left atrial volume decreased and left atrium was stored 1 month after operation. The function of the conduit was improved and the LASt was decreased.
【作者单位】：重庆医科大学超声影像学研究所及附属第二医院超声科超声分子影像重庆市重点实验室;
【基金】：国家自然科学基金面上项目(No.81071158)
【分类号】：R541.75;R445.1

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