Fig 1.
PRISMA diagram from literature search to eligible studies.
Table 1.
Characteristics of eligible studies–study and clinical factors.
Table 2.
Characteristics of eligible studies–echocardiographic factors.
Fig 2.
Right ventricular two-dimensional global longitudinal strain pooled (a) mean and (b) lower limit of normal.
Fig 3.
Right ventricular two-dimensional free wall longitudinal strain pooled (a) mean and (b) lower limit of normal.
Fig 4.
Funnel plots for pooled analysis (a) right ventricular global longitudinal strain (RVGLS) mean, (b) RVGLS lower limit of normal (LLN), (c) right ventricular free wall longitudinal strain (RVFWLS) mean, and (d) RVFWLS LLN.
Table 3.
Pooled means and lower limits of normal for right ventricular strain.
Table 4.
Meta-regression of two-dimensional right ventricular systolic strains mean and lower limit of normal.