Abstract
Early cardiac damage is very common in RA patients, but it is usually subclinical. Therefore, finding a non-invasive method for the early detection and treatment of cardiac damage in autoimmune diseases is particularly important.diac dam RA ，。，。 OBJECTIVE: To evaluate left ventricular function changes in rheumatoid arthritis (RA) patients with preserved left ventricular ejection fraction (LVEF) using left ventricular pressure-strain loop (LV-PSL) technology and to explore the correlation between myocardial work (MW) and disease activity.- （LV-PSL） （LVEF） （RA） ， （MW） 。 METHODS: A total of 62 RA patients with preserved LVEF, treated at Wujin Hospital Affiliated with Jiangsu University from January 2021 to September 2023, were included. Patients were categorized into low (25), medium (18), and high (19) disease activity groups based on the 28 joint disease activity score (DAS28). A control group of 29 healthy individuals was also established. LV-PSL technology assessed left ventricular global longitudinal strain (GLS) and MW parameters: global constructive work (GCW), global wasted work (GWW), global work index (GWI), and global work efficiency (GWE). Correlations between MW parameters, GLS, LVEF, and DAS28 scores were analyzed. 2021 1 20239 62 LVEF RA 。 28 （DAS28） （25） 、 （18） （19） 。 29 。LV-PSL （GLS） MW ： （GCW）、 （GWW）、 （GWI） （GWE）。 MW 、 GLS 、 LVEF DAS28 。 RESULTS: There were no significant differences in general data between study and control groups (p > 0.05). However, laboratory indicators (RF, CRP, ESR) showed significant differences (p < 0.05). GWI, GCW, GWE, and GLS were significantly lower in the high disease activity group compared to controls (p < 0.05). GWI, GCW, and GWE were positively correlated with LVEF and absolute GLS, while GWW correlated negatively with LVEF (p < 0.05). （p > 0.05）。， （RF、CRP、ESR） （p < 0.05）。， GWI、GCW、GWE GLS （p < 0.05）。GWI、GCW GWE LVEF GLS ， GWW LVEF （p < 0.05）。 （p > 0.05）。， （RF、CRP、ESR） （p < 0.05）。， GWI、GCW、GWE GLS （p < 0.05）。GWI、GCW GWE LVEF GLS ， GWW LVEF （p < 0.05）。 CONCLUSION: RA disease activity is closely associated with impaired myocardial work. LV-PSL technology effectively monitors myocardial function abnormalities in RA patients, providing valuable insights for clinical management. Key Points • Myocardial work is significantly impaired in RA patients with high disease activity. • Left ventricular pressure-strain loop (LV-PSL) technology effectively assesses cardiac function in this patient population. • Increased disease activity correlates with reduced myocardial work parameters.