ArticleQuantitative imaging in medicine and surgery2026
Serial changes in right ventricular function after mitral valve surgery: retrospective analysis of a prospective cohort.
Article in Quantitative imaging in medicine and surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Despite the clinical relevance of right ventricular (RV) function assessed on echocardiography, its predictive utility for patients receiving mitral valve surgery remains uncertain. The primary objectives of this study were to characterize RV function before and after valvular surgery and to establish the diagnostic value of this assessment. Methods: Echocardiograms were collected prospectively from patients undergoing mitral valve surgery between 2020 and 2023. Subsequently, a retrospective analysis of preoperative and postoperative echocardiographic parameters was performed to evaluate RV function, including tricuspid annular plane systolic excursion (TAPSE), tricuspid annular systolic velocity (S'TDI), RV fractional area change (FAC), RV free wall longitudinal strain (RVFWLS), RV global longitudinal strain (RVGLS), and three-dimensional RV ejection fraction (3D RVEF). The study included 115 patients with mitral valve surgery. Serial echocardiographic evaluations were performed at four time points: preoperatively, 1 week postoperatively, 6 months postoperatively, and 1 year postoperatively. Serial changes in echocardiographic parameters (TAPSE, FAC, S'TDI, RVFWLS, and 3D‑RVEF) were analyzed via repeated‑measures analysis of variance (ANOVA). Receiver operating characteristic (ROC) curves and DeLong tests were used to evaluate and compare diagnostic performance. Reproducibility for RVFWLS, RVGLS, and 3D‑RVEF was assessed according to intraclass correlation coefficients (ICCs) and Bland-Altman plots in a random subset of 20 observations. Results: The principal findings were as follows: (I) RV systolic function demonstrated a statistically significant reduction postoperatively as compared to the preoperative baseline level (P<0.0001). (II) One year after operation, TAPSE and S'TDI remained significantly lower than their corresponding preoperative values, with mean changes of -0.34 mm [95% confidence interval (CI): -0.55 to -0.14; P=0.0003] and 1.48 cm/s (95% CI: 0.45 to 2.52; P=0.0024), respectively. In contrast, RVFWLS and 3D RVEF recovered to levels comparable to those at baseline, with mean changes of 0.29% (95% CI: -2.19% to 2.77%; P>0.05) and -3.04% (95% CI: -9.98% to 3.91%; P>0.05), respectively. (III) According to the DeLong test, RVFWLS demonstrated the highest diagnostic accuracy for RV systolic dysfunction (area under the curve =0.771), significantly outperforming conventional parameters (FAC, TAPSE, and S'TDI; all P values <0.001). (IV) RVFWLS exhibited stronger diagnostic agreement with the reference standard (3D RVEF) in identifying impaired RV systolic function, as indicated by the reclassification rate (31%), as compared to conventional parameters (57-64%). Conclusions: RVFWLS may serve as a novel indicator for assessing RV systolic function both preoperatively and postoperatively in patients with mitral regurgitation (MR).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.