Assessment of Left Ventricular Systolic Mechanical Function in Patients with Rheumatoid
Arthritis with Normal Ejection Fraction by Ultrasound Velocity Vector Imaging
LI Huamei, JING Xiangxiang
Department of Ultrasound, Hainan General Hospital, Haikou Hainan 570311, China
Abstract：Objective To evaluate the mechanical function of left ventricular systolic function in patients with normal rheumatoid
arthritis with ejection fraction by ultrasonic velocity vector imaging. Methods From January 2016 to January 2017, we prospectively
collected 50 patients with rheumatoid arthritis with normal ejection fraction in our hospital as an observation group. During the study
period, 50 healthy adults admitted to our hospital for health examination were enrolled as a control group. The mean peak systolic
velocity, peak strain and peak strain rate were observed in the basal, middle and apical segments of the two groups. Results There was
no significant difference between the two groups in the left cardiac ejection fraction (%), left ventricular shortening rate, E/A value
and e/a value (P>0.05). However, when compared with the control group, patients in the observation group got a reduction in systolic
mean peak velocity of the basal segment, systolic mean peak velocity of the middle segments and systolic mean peak velocity of apical
segments (P<0.05); an increased in systolic mean peak strain of the basal segment, systolic mean peak strain of the middle segments,
systolic mean peak strain of the apical segments and mean peak strain rate of the basal segment (P=0.041). There were no significantly
differences between the two groups in mean peak strain rate of the middle segments and apical segments (P>0.05). Conclusion
Ultrasound velocity vector imaging is helpful to identify early cardiac function impairment in patients with rheumatoid arthritis.
李华梅，景香香. 超声速度向量成像技术评价射血分数正常的RA患者左心室心肌收缩期力学功能[J]. 中国医疗设备, 2018, 33(4): 81-84.
LI Huamei, JING Xiangxiang. Assessment of Left Ventricular Systolic Mechanical Function in Patients with Rheumatoid
Arthritis with Normal Ejection Fraction by Ultrasound Velocity Vector Imaging. China Medical Devices, 2018, 33(4): 81-84.
