P1380 tissue Doppler and speckeled tracking of left ventricle post coarctation repair

Abstract

Introduction Left ventricular dysfunction was observed after repair of coarctation of the aorta (COA) before development of left ventricular concentric hypertrophy. Aim The aim of this study was to assess the the LV functions after COA repair. Methods Thirty pediatric patients with COA repair underwent echocardiographic examinations using Conventional echocardiography, tissue doppler image (TDI) and 2D-STE. Results The LV systolic functions assessed by TDI and 2-D-STE showed a significant reduction of (S׳׳LW LV, IVA at LW LV, IVA at the septum, longtudinal strain (LS) basal and global radial (GRS) in cases compared to control group . There is significant increase in GCS in cases compared to control group, the conventional Doppler derived MPI of LV in post coarctation repair cases was significantly prolonged compared to control. Analysis of mitral annulus velocities including E", A", E"/A" ratio and E/E′ ratio revealed worsening of the left ventricular diastolic mechanics in the post COA repair cases compared to healthy controls. The E" wave velocity (at the left ventricular lateral wall) was significantly lower in post COA repair in cases compared with controls , E"/A" ratio was significantly lower in post COA repair cases compared with controls . The E/E′ ratio was significantly higher in the post COA repair cases compared to the control group . Conclusions LV systolic and diastolic dysfunction was fount in patient after COA repair. LV systolic function by 2-D-STE Cases Control P value Mean SD mean SD GLS -21.51 2.79 -22.63 2.99 .094 LS basal -19.94 2.83 -22.63 2.99 <0.01 (S) LS Mid -21.08 2.75 -21.87 2.78 .273 LS apical -23.52 4.22 -21.74 4.23 .109 GRS 22.58 5.24 49.01 10.08 <0.01 (S) RS basal 20.92 8.29 43.56 18.95 <0.01 (S) RS mid 25.03 7.59 56.80 14.27 .223 RS apical 21.78 8.34 46.66 15.11 <0.01 (S) GCS -20.09 2.66 -16.73 2.78 <0.01 (S) CS basal -21.49 2.70 -16.98 4.69 <0.01 (S) CS mid -21.27 4.09 -15.83 3.67 <0.01 (S) CS apical -17.51 4.63 -17.39 4.57 .920