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Minerva Pediatrics 2021 Jun 15

DOI: 10.23736/S2724-5276.21.06021-7

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

How can stretched ductus diameter be predicted from angiographic diameter?

Hanna KIM, Jinyoung SONG , Gwang-Jun CHOI, June HUH, I-Seok KANG

Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Corea


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BACKGROUND: An appropriate size of device for patent ductus arteriosus (PDA) could be chosen by a stretched PDA size. We propose prediction of stretched size from intact PDA size.
METHODS: A total of 361 patients was enrolled. Intact size was measured on angiography before closure, and stretched size was the narrowest diameter immediately after device implantation.
RESULTS: The median patient age was 2.8 years. Intact diameter and stretched diameter were 3.6 ± 1.4 mm and 5.1 ± 1.3 mm. The difference and difference ratio were 1.5 ± 0.8 mm and 51.3 ± 38.1% and had negative linear correlations with age (P<0.001). Patients were divided into four groups; < 2 years old (159), 2-15 years old (68), 15 - 40 years old (72), and ≥ 40 years old (62). Among groups, difference and difference ratio were significantly different. Stretched diameter was inferred by the following formulas: stretched diameter = 0.660ⅹintact diameter + 2.791 (<2 years old); = 0.971ⅹintact diameter +0.058ⅹage +1.131 (2-15 years old); = 0.790ⅹintact diameter +2.263 (15 - 40 years old); and = 0.837ⅹintact diameter +1.353ⅹBSA -0.096 (≥40 years old).
CONCLUSIONS: Stretched PDA diameter can be predicted from intact diameter and might be helpful for safe PDA closure especially in small infants.


KEY WORDS: Angiography; Device closure; Diameter; Patent ductus arteriosus

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