ArticlePediatric cardiology2026
Right Ventricular Function Assessed by Speckle Tracking Echocardiography in Patients Undergoing Transcatheter Pulmonary Valve Replacement.
Article in Pediatric cardiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
8 authors.
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Abstract
The effect of pulmonary valve replacement (PVR) on right ventricular (RV) function remains unclear. Cardiac magnetic resonance (CMR) is the gold standard for RV assessment but has practical limitations. Speckle tracking echocardiography (STE) may offer an alternative for evaluating RV systolic function. This study used STE to assess changes in RV systolic strain and right atrial (RA) strain following PVR. STE parameters including RV free-wall longitudinal strain (RVFWSL), RV four-chamber strain (RV4CSL), regional basal, mid-ventricular, apical RV strain, RA reservoir and contraction strain were assessed in 50 patients who underwent TPVR at pre-, post-operative day 1 and at six-month follow-up. RV systolic strain significantly improved after TPVR. RVFWSL increased from - 20.3 ± 5.1% at baseline to - 23.3 ± 5.2% (P < 0.001), and RV4CSL improved from - 18.5 ± 4.1% to - 21.3 ± 4.1% (P < 0.001). Regional RV strain also significantly improved at the basal, mid-cavity and apical levels (- 18.1 ± 4.3% to - 21.4 ± 5.5%, P < 0.001). RA reservoir and contraction strain, did not change significantly. Patients with RV end-systolic volume index < 80 mL/m
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