Atrial cardiomyopathy in postmenopausal female healthcare professionals- a single-center study

Abstract Background Atrial cardiomyopathy (ACM) is a new clinical entity with significant importance, because of its potential to be a determinant of heart failure, atrial fibrillation and thromboembolic complications¹. Defining different atrial phenotypes is challenging, because of the lack of consensus for the diagnosis of ACM²'³. Menopausal transition is associated with adverse changes in women’s health such as obesity and hypertension, both known risk factors for ACM⁴. Aim To investigate left atrial (LA) structural and functional echocardiographic parameters in postmenopausal female healthcare professionals and to define atrial phenotype in this population. Methods Consecutive asymptomatic, postmenopausal, middle-age women (n=105), healthcare professionals from our hospital, were separated in 3 groups according to co-morbidities : with obesity (n=50), obesity and hypertension (n=24), healthy control (n=31). All patients underwent 2D echocardiographic examination with volumetric and speckle tracking analysis of LA. Results There were significant differences in LA structural and functional indices between 3 groups- table 1. Higher body mass index was associated with increased LA volume index (p<0.001, r= 0.56), reduced LA total emptying fraction- LATEF (p<0.001, r= -0.62), Peak atrial longitudinal strain-PALS (p<0.001, r= -0.59 ) and Peak atrial contractile strain- PACS (p<0.001, r= 0.56 ). ROC analysis was performed for identifying atrial phenotype of obese women with hypertension: LAVi 16.5ml/m2,(sensitivity 0.833, specificity 0.839, AUC 0.875), PALS 46.55% (sensitivity 0.903, specificity 0.875, AUC 0.951), PACS -20.75% (sensitivity 0.806, specificity 0.708, AUC 0.855), LATEF 69% (sensitivity 0.903, specificity 0.792, AUC 0.920)- figure 1. Conclusion Postmenopausal women with obesity and hypertension are at risk for asymptomatic ACM. Further investigations are needed to confirm this concept.