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Transcatheter versus surgical closure of atrial septal defect in adult patients with tricuspid regurgitation



Objectives

Transcatheter closure using a device has been established as an effective atrial septal defect (ASD) treatment, but its value in treating patients with concomitant functional tricuspid regurgitation (TR) is relatively unknown. We sought to evaluate outcomes of patients with ASD and significant TR after transcatheter ASD closure or surgical treatment.

Methods

A total of 252 consecutive adult patients (53.8±13.8 years, 180 females) who had a significant functional TR before ASD closure were retrospectively analysed. The primary end point was a composite of all-cause death, stroke and heart failure. The secondary end point was significant residual TR early and at 1 year after ASD closure.

Results

Transcatheter ASD closure alone and surgical ASD closure along with tricuspid annuloplasty (TAP) were performed in 68 and 184 patients, respectively. Significant TR remained in 32% (81/252) early after ASD closure and in 29% (52/182) after 1 year. The severity of TR was significantly decreased after transcatheter ASD closure (p<0.001). In multivariable analysis, TAP (OR 0.07; p<0.001) and ASD diameter (OR 0.90; p=0.040) were independent predictors of the significant residual TR early after treatment, while only TAP (OR 0.08; p<0.001) was a significant predictor at 1 year after treatment. After propensity score matching in patients with moderate or severe TR, there were no significant differences between the transcatheter ASD closure group and surgical ASD closure plus TAP group in terms of the event rates at 5 years (10.3% vs 5.5%, p=0.963).

Conclusions

While TAP was effective for the treatment of significant TR, transcatheter ASD closure also significantly reduced TR as well. Transcatheter ASD closure may be considered an alternative treatment option in patients with moderate or severe TR.



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