Transcatheter device closure of atrial septal defects in patients above age 60

Erwin Ströker, Alexander Van De Bruaene, Pieter De Meester, Kristien Van Deyck, Marc Gewillig, Werner Budts
Acta Cardiologica 2013, 68 (2): 127-32

BACKGROUND: Closure of an atrial septal defect (ASD) mostly causes reverse remodelling of the right heart, a decrease in pulmonary artery pressures (PASP), and improves functional capacity. However, abolition of the left-to-right shunt may be unfavourable in older patients. This study aimed at evaluating patients older than 60 years who underwent ASD closure.

METHODS AND RESULTS: Forty-seven patients (mean age 69 5 years, 19.1% male) with ASD type secundum who underwent transcatheter device closure were included. Echocardiographic data before and after closure were obtained. Follow-up data until the last follow-up visit were retrieved. Age-, gender- and BMI-matched controls were selected. Before closure, ASD patients had a higher right ventricular end-diastolic diameter (RVEDD), right (RA) and left atrial (LA) dimensions, and PASP when compared to controls. After closure, RVEDD and PASP decreased whereas LVEDD and E/A-ratio increased. RVEDD, PASP, LA dimensions, left ventricular ejection fraction (LVEF) and E/A-ratio were higher than controls. NYHA class improved significantly after ASD-closure. During a median follow-up time of 3.3 years, 6 patients died and 16 were hospitalized because of cardiac events.

CONCLUSION: Device closure in the elderly improved functional capacity, with a decrease, but not a normalization of RV dimensions and PASP, and an increase in LV dimensions, EF and mitral E/A-ratio. Atrial arrhythmias and coronary ischaemic events are common in this population.

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