LEFT ATRIAL STRAIN IN THE ATRIAL FUNCTIONAL MITRAL REGURGITATION

The article investigates the role of left atrial strain (LAS) and left atrial volume (LAV) in atrial functional mitral regurgitation (AFMR) among the patients with atrial fibrillation (AF). The aim is to evaluate LAS, LAV in AFMR patients and compare it with a control group, explore differences across AF types, and identify contri­buting factors to altered LAS. The study, conducted re­trospectively at hospital of Lithuanian university of He­alth Sciences (LUHS) Kaunas Clinics.

Results show significant differences in LAS and LAV parameters between AFMR and control groups, with dis­tinctions between paroxysmal and persistent AF. LAS demonstrated moderate correlation with mitral regurgi­tation (MR) grade, left ventricular mass index (LV MI), and age. However, LAS changes were influenced by age, LVMI, and MR grade only in the AFMR group, indica­ting unique associations. The study supports LAS as a sensitive marker for altered LA function, suggesting its potential clinical utility in AFMR management.