Evaluation of left ventricular systolic function in patients with Idiopathic premature ventricular contractions by speckle tracking imaging technique
Abstract：Objective To evaluate the left ventricular systolic function in patients with different burden of idiopathic premature ventricular contractions(IPVCs) by tow-dimensional speckle tracking imaging technique(2D-STI).Methods A total 55 patients with IPVCs were observed,according to the burden of IPVCs,these patients were divided into two subgroups:group A(＜20％),group B(≥20％),30 cases of healthy volunteers were used as the control group.Left ventricular end-diastolic dimension (LVEDD),left ventricular end-systolic dimension (LVESD) and left ventricular ejection fraction (LVEF) were measured by common echocardiography.Left ventricular longitudinal strain (LVLS) and left ventricular circumferential strain (LVCS) were analyzed by 2D-STI.Results There were no significant difference between patients and controls in LVEF,LVESD,LVEDD.LVCS and LVLS of patients were (17.68±2.49)％、(18.37t2.26)％,while LVCS and LVLS of controls were (22.24± 1.57)％、(22.91 ±1.83)％.LVCS and LVLS of patients had been significantly impaired when compared to controls (P＜0.01).LVCS and LVLS of group A were(-18.77±2.05)％、(-19.27±2.11)％,while LVCS and LVLS of group B were (-16.28±2.35)％、(-17.20±1.91)％.Compared with group A,LVLS and LVCS of group B reduced more significantly,the difference was statistically significant (P＜0.01).Conclusion IPVCs can affect the left ventricular systolic function,and the higher the burden,the more obvious the influence.2D-STI can accurately assess the hidden left cardiac function in patients with IPVCs.
Keywords：Tow-dimensional speckle tracking imaging techniqueIdiopathic premature ventricular contractionsDifferent burdenThe left ventricular function
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 151-154 )