右心结构改变与心电图V_1导联P波终末电势的关系

Relationship Between the Structural Changes in Right Heart and the Value of ptf_(V1) in Electrocardiogram

目的:应用超声心动图检查,分析右心结构改变与心电图上V1导联P波终末电势(ptfV1)的关系。方法:对52例同时行心电图及超声心动图检查的病例进行分析。结果:右心房心尖四腔短径、右心室心尖四腔长径ptfV1值即P波直立组、ptfV1>-0.03 mm.s组、ptfV1≤-0.03 mm.s组三个组间比较,差异有统计学意义(P=0.001,表2);但各组间LSD法检测P波直立组与ptfV1>-0.03 mm.s组之间比较差异无统计学意义(P>0.05)。右心室短轴流出道内径ptfV1值即P波直立组、ptfV1≤-0.03 mm.s组、ptfV1>-0.03 mm.s组三个组间比较,差异有统计学意义(P<0.05);但各组间LSD法检测P波直立组与ptfV1>-0.03 mm.s组比较,差异无统计学意义(P>0.05)。肺动脉主干内径、右心房心尖四腔长径、左心室长轴观右心室前后径及右心室心尖四腔短径在P波直立组、ptfV1≤-0.03 mm.s组、ptfV1>-0.03 mm.s组三个组间比较差异均无统计学意义(P>0.05);各组间LSD法检测差异均无统计学意义(P>0.05)。结论:心电图ptfV1的出现与右心结构变化有一定关系。

Objective：To study the relationship between the structural changes in right heart and the value of ptfV1 in electrocardiogram（ECG）. Methods：We studied 52 patients who received both ECG and echocardiography examination and analyzed their right heart structure. Results： ptfV1value in short axis of four chambers in right atrium apical and in long axis of four chambers in right ventricle apical had the statistical differences among P wave upright group,ptfV1-0.03 mm/s group and ptfV1≤-0.03 mm/s group,P=0.001,while by LSD detection,ptfV1 value had no real difference between P wave upright group and ptfV1-0.03 mm/s group,P0.05.ptfV1 value in right ventricular short axis outflow had the statistical differences among the above 3 groups,P0.05,while by LSD detection,ptfV1 value had no real difference between P wave upright group and ptfV1-0.03 mm/s group,P0.05.ptfV1 value in pulmonary artery diameter,in long axis of four chambers in right atrium apical,in left ventricular long-axis view of the anterior/posterior diameter of right ventricle and short axis of four chambers in right ventricle apical had no real differences among 3 groups,P0.05,there was no real difference by LSD detection,P0.05. Conclusion：The appearance of ptfV1 in ECG is somewhat related to the structural changes of the right heart.