Key result
Preoperative right atrial reservoir strain predicts ~12% greater likelihood of improved peak VO2 after Ebstein surgery.
Why the study?
Although tricuspid valve surgery improves functional capacity in Ebstein anomaly, it is not always associated with improved aerobic capacity, leaving the determinants of improved postoperative aerobic capacity unidentified.
What are the preoperative echocardiographic predictors of improved aerobic capacity after tricuspid valve surgery in adults with Ebstein anomaly?
Population
76 adults with severe tricuspid regurgitation due to Ebstein anomaly who underwent tricuspid valve surgery
Comparison
Aerobic capacity(+) vs aerobic capacity(-) groups based on postoperative improvement in %-predicted peak VO2
Design
Retrospective study
Authors
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Preoperative atrial strain may aid risk stratification for postoperative capacity gains; leaves open whether it should guide surgical selection in Ebstein anomaly.
Cohort (n=76)
No
What are the preoperative echocardiographic predictors of improved aerobic capacity after tricuspid valve surgery in adults with Ebstein anomaly?
Effect estimate: RR 1.12 (95% CI 1.06-1.18)
Preoperative right and left atrial reservoir strain are key predictors of improved aerobic capacity after tricuspid valve surgery in patients with Ebstein anomaly.
Egbe et al. (2020) conducted a cohort in Ebstein anomaly with severe tricuspid regurgitation (n=76). Tricuspid valve surgery was evaluated on Postoperative improvement in %-predicted peak oxygen consumption (VO2) (RR 1.12, 95% CI 1.06-1.18). Preoperative right atrial reservoir strain (RR 1.12; 95% CI 1.06-1.18) and left atrial reservoir strain predicted improved aerobic capacity after tricuspid valve surgery in Ebstein anomaly.
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