Abstract
Device migration is one of serious complications in neonates and infants undergoing transcatheter closure of the patent ductus arteriosus (PDA). We hypothesize that neonates and young infants possess the distensibility of the ductus, which may be related to device migration. We retrospectively reviewed angiographic findings in 41 neonates and infants who underwent transcatheter closure of PDA. We measured diameters of the ductus at the pulmonary (PA) side, the center, and the aortic (AO) side before PDA closure, and the device center diameter after device closure. The distensibility index was defined as the ratio of the device center diameter after device deployment to the diameter at the center of the ductus before PDA closure. Age and weight at the procedure were 168 (117–260) days and 5.3 (4.3–6.9) kg, respectively. Thirty-seven subjects accomplished the successful device closure, and four subjects were declined because of the device instability or migration. Implanted devices included Amplatzer Duct Occluders in 33 subjects and Amplatzer Vascular Plug-2 in 8 subjects. The PDA diameters at PA side, at the center, AO side, and the device center diameter were 3.2 (2.2–4.3) mm, 4.7 (3.6–5.7) mm, 7.7 (6.3–9.4) mm, and 5.8 (4.2–6.9) mm, respectively. The PDA diameter before closure was not correlated age and weight. The distensibility index was 1.28 (1.06–1.64), which was significantly correlated to age (r = − 0.49, P = 0.001) and weight (r = − 0.53, P < 0.001). Infants with the younger age and the lower weight have the more distensible PDA, which may be a risk for device migration.
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Nagasawa, K., Muneuchi, J., Sugitani, Y. et al. Distensibility of the ductus arteriosus in neonates and young infants undergoing transcatheter closure. Heart Vessels 37, 513–516 (2022). https://doi.org/10.1007/s00380-021-01925-9
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DOI: https://doi.org/10.1007/s00380-021-01925-9