Objective: To evaluate the clinical feature of patients with atrial septal defects (ASD) and the safety and efficacy of transcatheter closure of ASD in elderly patients.
Methods: Between May 2000 and June 2010, 82 patients aged (64.5 ± 3.8) years underwent attempted transcatheter ASD closure. Right heart catheterization was performed before intervention. Echocardiography was made at 1 day, 1, 3, 6 months after the procedure. The pre- and post-closure clinical feature, pulmonary artery pressure (PAP) and cardiac function were evaluated.
Results: In 82 patients, 37 (45.1%) patients were associated with pulmonary arterial hypertension (PAH). The systolic PAP and mean PAP [(44.1 ± 12.4) mm Hg (1 mm Hg = 0.133 kPa) and (25.2 ± 6.8) mm Hg, respectively] were measured by right heart catheterization before the procedure. One patient was unsuitable for closure because of severe PAH. The remaining 81 patients underwent successful ASD closure without major complications. After closuring, systolic PAP decreased from (52.7 ± 10.3) mm Hg to (31.8 ± 6.3) mm Hg (P < 0.05), and mean PAP descended from (30.9 ± 4.7) mm Hg to (21.8 ± 3.4) mm Hg (P < 0.05) in the 36 patients with PAH. The cardiac function improved post procedure. There were 6 new-onset atrial fibrillations during follow up.
Conclusions: ASD in elderly patients are commonly associated with PAH. Transcatheter ASD closure is safe and effective in the majority of elderly patients.
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