4:20 PM - 5:10 PM
[II-JCKO5-03] Tricuspid valve annulus Z score before and after transcatheter closure of atrial septal defect
Introduction:
Trans-catheter closure of atrial septal defect (ASD) is a commonly used procedure with excellent outcome and minimal complication. Interatrial shunt via ASD produces right ventricle (RV) volume overload, and closure of ASD may stop the progression and normalize RV size. Tricuspid valve (TV) annulus may be regarded as surrogate of RV size. In this study, we aimed to investigate the change of TV annulus before and after closure of ASD.
Methods:
We obtained patient lists of ASD secundum type from 2011 to 2015 with age 1 to 13 years-old in National Taiwan University Children’s Hospital. We retrospectively collected the demographic data, echocardiography parameters, and hemodynamic parameters at catheterization. We calculated TV annulus Z score before and after ASD closure and examined the association between the pre-catheterization parameter and post-catheterization Z score change.
Results:
For this population, the female to male ratio was 2.5 to 1, the mean/median age at catheterization was 4.2 years-old. The mean/median Z score of tricuspid valve before catheterization was 1.25. Pre-catheterization proBNP and Qp/Qs were positively associated with tricuspid valve Z score. TV Z score decreased to stationary state within a few months.
Conclusion:
TV annulus may be used as index for RV volume overload and recovery from trans-catheter closure of ASD. Further study for closure of ASD in older population may give us implication of long term effect of volume overload from ASD.
Trans-catheter closure of atrial septal defect (ASD) is a commonly used procedure with excellent outcome and minimal complication. Interatrial shunt via ASD produces right ventricle (RV) volume overload, and closure of ASD may stop the progression and normalize RV size. Tricuspid valve (TV) annulus may be regarded as surrogate of RV size. In this study, we aimed to investigate the change of TV annulus before and after closure of ASD.
Methods:
We obtained patient lists of ASD secundum type from 2011 to 2015 with age 1 to 13 years-old in National Taiwan University Children’s Hospital. We retrospectively collected the demographic data, echocardiography parameters, and hemodynamic parameters at catheterization. We calculated TV annulus Z score before and after ASD closure and examined the association between the pre-catheterization parameter and post-catheterization Z score change.
Results:
For this population, the female to male ratio was 2.5 to 1, the mean/median age at catheterization was 4.2 years-old. The mean/median Z score of tricuspid valve before catheterization was 1.25. Pre-catheterization proBNP and Qp/Qs were positively associated with tricuspid valve Z score. TV Z score decreased to stationary state within a few months.
Conclusion:
TV annulus may be used as index for RV volume overload and recovery from trans-catheter closure of ASD. Further study for closure of ASD in older population may give us implication of long term effect of volume overload from ASD.