Why the study?
Does percutaneous transcatheter closure of a secundum ASD improve right atrial function assessed by speckle tracking echocardiography in patients with ASD?
Does percutaneous transcatheter closure of a secundum ASD improve right atrial function assessed by speckle tracking echocardiography in patients with ASD?
Percutaneous closure of secundum ASD significantly improves right atrial longitudinal strain and right ventricular dimensions at one month, demonstrating the utility of 2D-STE in assessing response to volume overload correction.
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STE may aid RA function monitoring after ASD closure; leaves open routine clinical adoption.
Speckle tracking echocardiography (STE) for two-dimensional (2D) strain analysis is a new tool to assess myocardial function. The aim of this study was to assess right atrial (RA) function using STE in patients with an atrial septal defect (ASD) before and one month after percutaneous closure. We prospectively examined 32 consecutive patients (nine male, 23 female) who underwent percutaneous transcatheter closure of a secundum ASD between June 2013 and December 2015. Echocardiography was performed on admission, prior to cardiac catheterization and then one month after ASD closure. Peak global RA longitudinal strain was analyzed by 2D-STE. Patients’ mean age was 34.6±8.2 years. The mean diameter of the occlusive devices was 18.5±7.5 mm. Right ventricular (RV) end-diastolic diameters were significantly increased but decreased significantly after ASD closure (43±5 vs. 38±4 mm, p<0.05). Left atrial (LA) diameters (40±8 vs. 37±6 mm, p<0.05) decreased significantly after the intervention, whereas left ventricular (LV) end-diastolic diameters (45±5 vs. 46±4 mm, NS) remained unchanged. Tricuspid annular plane systolic excursion increased significantly (17.6±5.4 vs. 22.3±8.1 mm, p<0.05). After closure of the defect, a significant increase was observed in longitudinal RA strain (26.5±9.6% vs. 35.3±10.5%, p<0.001). After percutaneous transcatheter closure of a secundum ASD, there was an increase in RA longitudinal strain. 2D-STE strain analysis appears to be helpful for the assessment of RA function and of response to correction of volume overload after percutaneous transcatheter closure of a secundum ASD. O speckle tracking por ecocardiograma (STE) ou a avaliação do strain em 2 D são novas ferramentas para a avaliação da função miocárdica. O objetivo deste estudo foi avaliar a função da aurícula direita (AD) com o uso de STE em doentes com comunicação interauricular antes e um mês após o encerramento percutâneo. Avaliamos prospetivamente 32 doentes consecutivos (nove homens, 23 mulheres) submetidos a encerramento percutâneo de comunicação interauricular (CIA) do tipo ostium secundum, entre junho de 2013 e dezembro de 2015. O ecocardiograma foi feito previamente ao procedimento e um mês após o encerramento da CIA. Foi avaliado o strain longitudinal global da AD (RALS) por 2D-STE. A idade média dos doentes foi de 34,6±8,2 anos. O diâmetro médio dos dispositivos empregados foi de 18,5±7,5 mm. Os diâmetros telediastólicos do ventrículo direito (VD) eram significativamente maiores e diminuíram após encerramento da CIA (43±5 versus 38±4 mm, p<0,05). O diâmetro da aurícula esquerda (AE) diminuiu significativamente após a intervenção (40±8 versus 37±6 mm, p<0,05), enquanto que o diâmetro telediastólico do ventrículo esquerdo permaneceu igual (45±5 versus 46±4 mm, NS). O TAPSE aumentou significativamente (17,6±5,4 versus 22,3±8,1 mm, p<0,05). Observamos ainda uma subida significativa do strain longitudinal da AD (26,5±9,6% versus 35,3±10,5%, p<0,001). Após encerramento percutâneo de CIA ostium secundum, observou-se um aumento significativo do strain longitudinal global da AD.
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Öztürk et al. (2017) studied this question.
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