Study Of Left Ventricular Rotation And Torsion In Hyperthyroid By Speckle Tracking Imaging

Objective:Quantitative analysis of hyperthyroidism in patients with left ventricular rotation and torsional motion by speckle tracking imaging (STI) to explore the hyperthyroidism in patients with left ventricular systolic function.Methods:Select the first59cases for the study of the June review of I131treatment and after treatment, cure and improvement in patients with hyperthyroidism, divided into two groups according to duration. Group A:duration of less than6months,31cases; B:duration of greater than6months,28cases; Control group:30cases of sex and age matched normal.group A and B before treatment and after treatment with the control group underwent routine ultrasound examination, collection and storage of the left ventricular apex level of short-axis dynamic images of the cardiac cycle in all three, application X-strain software analysis come to the heart of the heart and the apex level, the rotation angle of sub-epicardial myocardial peak, calculation of left ventricular heart, sub-epicardial myocardial reverse angle peak, analysis the relativities between the rotation and torsion angle peak in cardiac structure and function parameters, heart rate, blood pressure and thyroid hormone levels and other factorsResults:①Group A、B before and after treatment compared with the control group, left ventricular structure and function parameters (LVDd, LVDs, IVSd, PWd LVEF), the difference was not statistically significant (P>0.05), B group before treatment, left ventricular outflow tract velocity (LVOT-V) higher than that of the control group (P＜0.01) after treatment compared with control group difference not statistically significant (P＜0.05).②The apex level of the heart, sub-epicardial myocardial rotation angle peak (EN-PAR, the EP-PAR) compared with Group A before treatment EN-PAR, the EP-PAR higher than that in the control group, Group B EN-PAR, EP-PAR is lower than control group (P<0.01); treatment, group A EN-PAR, EP-PAR than before treatment to improve B only EP-PAR than before treatment improved (p＜0.01).③The heart of global left ventricular sub-epicardial myocardial reverse angle peak (EN-Ptor, EP-Ptor) Comparison of Group A before treatment EN-Ptor, EP-Ptor higher than that in the control group, B EN-Ptor, EP-Ptor lower the control group (P<0.01); after treatment, A and B EN-Ptor, EP-Ptor improved (P<0.05) than before treatment.④The level of the heart within the heart, sub-epicardial myocardial rotation angle peak (EN-PBR, the EP-PBR) comparison of the B group before treatment and after treatment EN-of PBR, the EP-of PBR in the control group, no statistically significant difference (P>0.05).⑤The apex of the heart, sub-epicardial myocardial rotation angle peak SBP, HR, LVOT-V showed a negative correlation (P<0.01), and thyroid hormone levels (FT3, FT4and TSH) no correlation (P>0.05). Conclusions:①Hyperthyroidism in patients with early heart apex level, the adventitia of myocardial rotation and left ventricular peak torsion angle increases, decreases with the extension of the course.②Has not yet appeared hyperthyroid heart disease, hyperthyroidism in patients with early left ventricular systolic function enhanced with the extension of the course to reduce.③Short duration of the hyperthyroid patients after treatment, left ventricular regional systolic function of recoverability, the duration of the elderly can not be fully restored.④Change of the rotational motion of hyperthyroidism in patients with myocardial and hemodynamic changes in.⑤STI can evaluate regional myocardial systolic function in patients with hyperthyroidism.