论文部分内容阅读
目的 :采用多巴酚丁胺负荷超声心动图 ( DSE)试验评价急性心肌梗死 ( AMI)恢复期患者左室容积 ( L VV)的变化及其意义。方法 :DSE采用分级负荷方法 ,用动态三维超声心动图 ( 3- DE)测定 32例正常人 ( A组 )和 35例 AMI恢复期患者 ( B组 ) L VV。结果 :两组静息状态 L VV无显著性差异 ;DSE过程中 A组逐步缩小 ,而 B组在低负荷时缩小 ,高负荷时较静息状态扩大 ,与 A组相比有极显著性差异 ( P <0 .0 1)。结论 :以 3- DE行 DSE能通过 LVV的改变了解 AMI恢复期的心功能状态。
AIM: To evaluate the changes of left ventricular volume (L VV) and its significance in patients with congestive heart failure (AMI) during convalescence with dobutamine stress echocardiography (DSE). Methods: DSE was performed with graded-load method. L VV was measured in 32 normal subjects (group A) and 35 patients with AMI recovery (group B) by dynamic three-dimensional echocardiography (3- DE). Results: There was no significant difference in L VV between two groups at rest; in group A, the number of group A gradually decreased while group B was reduced at low load, and then at resting state under high load, which was significantly different from group A (P <0. 01). Conclusion: DSE of 3-DE can be used to understand the cardiac function during AMI convalescence through the change of LVV.