Normal Ranges of Right Atrial Strain: A Systematic Review and Meta-Analysis

Abstract

Background: Standard measures for the clinical assessment of right atrial (RA) function are lacking. Objectives: In this systematic review and meta-analysis, the authors sought to report a reference range for RA deformation parameters in healthy subjects and to identify factors that contribute to reported variations. Methods: The authors conducted a comprehensive search of MEDLINE; MEDLINE In-Process & Other Non-Indexed Citations; Embase; Scopus; and the Cochrane Central Register of Controlled Trials from database inception through October 2021. Studies were included if they reported RA strain or strain rate (SR) using 2-dimensional speckle-tracking echocardiography in healthy volunteers or ..