不同起搏方式对左心室重构的近远期影响  

Structural Remodeling of Left Ventricle in Earlier and Later Stage After Different Pacermakers Implantation

作　　者：周军[1] 杨敏全[1] 朱燕[1] 张小忆[1] 郭华[1] 

机构地区：[1]上海交通大学医学院第三人民医院心内科,上海201900

出　　处：《医学临床研究》2006年第9期1383-1385,共3页Journal of Clinical Research

摘　　要：【目的】评价不同起搏模式植入后对左心室重构的近远期影响。【方法】通过M型、二维及多普勒超声心动图检测了24例VVI型起搏器和32例DDD型起搏器患者术前、术后1年和5年时左房内径、左室舒张和收缩末期内径、左室射血分数、左室短轴缩短分数的改变,并以植入前后的差值来比较两者在左心室结构和功能重构上的差异。【结果】随访术后1和5年时,VVI型和DDD型起搏器除左房内径均增大外,其余结构指标均好转,而左心室收缩功能的指标以DDD型好于VVI型,且两者相比较差异有显著性。【结论】DDD型心脏起搏器比VVI型在术后近远期对左心室结构和功能重构上具有更好的效果。[Objective]To assess the characteristics of structural remodeling of left ventricle in earlier and later stage after different pacemakers implantation by echocardiography. [Methods]The left atrial diameter and the ventricular ejection fraction（LVEF） and fiber shortening（FS）, end-diastolic diameter （LVDd） and end-systolic diameter （LVDs） were measured by the echocardiography before and after implantation of pacemaker and follow-up 1-5 years in 56 patients. Among them,24 cases were implanted with VVI pacemaker,and 32 cases with DDD pacemaker. The structural remodeling was defined as the balance of pre-and postmplantation. [Results]The indexes of structural remodeling were changed, especially in the Ieft atrial diameter, which in creased in all cases after follow-up 1-5 years. [Conclusion]The structural remodeling of left ventricle appears in earlier and later stage after the implantation of pacemaker ,as well as in the function remodeling. It suggests that the DDD pacemaker can bring more benefits in the earlier and later stage after implantation than the VVI pacemaker on the structure and function of left ventricle.

关 键 词：心室功能 左 心脏起搏 人工 

分 类 号：R541[医药卫生—心血管疾病]