论文部分内容阅读
目的 观察甲状腺功能亢进症的左心房作功情况，找出左房作功的规律。方法 应用二维多普勒超声心动图技术比较８０ 例相互匹配的甲亢患者和正常人的左房容积、收缩时间间期及左房射血力（ＬＡＦ） 等指标。结果 甲亢组左房容积的各项指标均较正常组大；左房射血期（ＬＡＥＴ） 甲亢组较正常组长；左房射血前期（ＬＡＰＥＰ） 、ＬＡＰＥＰ／ＬＡＥＴ比值，甲亢组小于正常组；ＬＡＦ甲亢组比正常组增大；甲亢组内ＬＡＦ与左房射血分数（ＬＡＥＦ）、左室每搏量（ＬＶＳＶ） 、左室射血分数（ＬＶＥＦ）呈正相关，与ＬＡＰＥＰ／ＬＡＥＴ呈负相关。结论 甲亢患者左房收缩功能增强；ＬＡＦ是反映左房收缩功能的良好指标，有助于估计左室充盈和收缩功能的变化；甲亢患者左房作功加强对维持左房收缩功能有重要意义。
Objective To observe the situation of left atrium in hyperthyroidism and find out the law of left atrium work. Methods Two-dimensional Doppler echocardiography was used to compare left atrial volume, systolic time and left atrial ejection force (LAF) in 80 patients with hyperthyroidism matched with normal controls. Results The indexes of left atrium volume in hyperthyroidism group were higher than those in normal group. The values of LAPEP and LAPEP / LAET in hyperthyroidism group were lower than those in normal group ; LAF hyperthyroidism group than the normal group increased; hyperthyroidism group LAF and left atrial ejection fraction (LAEF), left ventricular stroke volume (LVSV), left ventricular ejection fraction (LVEF) was positively correlated with LAPEP / LAET was negative Related. Conclusions Left ventricular systolic function is enhanced in patients with hyperthyroidism. LAF is a good predictor of left atrial systolic function, which is helpful to estimate changes of left ventricular filling and contractile function. Left ventricular augmentation in hyperthyroid patients is important for maintaining left atrial systolic function.