Abstract：
:To investigate whether transcatheter device closure of patent ductus arteriosus (PDA) is safe in children with pulmonary artery hypertension, we retrospectively analyzed our experience with 33 patients who underwent the procedure from January 2000 through August 2015. Pulmonary artery hypertension was defined as a pulmonary vascular resistance index (PVRI) >3 WU · m2. All 33 children (median age, 14.5 mo; median weight, 8.1 kg) underwent successful closure device implantation and were followed up for a median of 17.2 months (interquartile range [IQR], 1.0-63.4 mo). During catheterization, the median PVRI was 4.1 WU · m2 (IQR, 3.6-5.3 WU · m2), and the median mean pulmonary artery pressure was 38.0 mmHg (IQR, 25.5-46.0 mmHg). Premature birth was associated with pulmonary vasodilator therapy at time of PDA closure ( P=0.001) but not with baseline PVRI (P=0.986). Three patients (9.1%) had device-related complications (one immediate embolization and 2 malpositions). Two of these complications involved embolization coils. Baseline pulmonary vasodilator therapy before closure was significantly associated with intensive care unit admission after closure (10/12 [83.3%] with baseline therapy vs 3/21 [14.3%] without; P <0.001). Of 11 patients receiving pulmonary vasodilators before closure and having a device in place long-term, 8 (72.7%) were weaned after closure (median, 24.0 mo [IQR, 11.0-25.0 mo]). We conclude that transcatheter PDA closure can be performed safely in many children with pulmonary artery hypertension and improve symptoms, particularly in patients born prematurely. Risk factors for adverse outcomes are multifactorial, including coil use and disease severity. Multicenter studies in larger patient populations are warranted.
journal_name
Tex Heart Inst Jjournal_title
Texas Heart Institute journalauthors
Salavitabar A,Krishnan US,Turner ME,Vincent JA,Torres AJ,Crystal MAdoi
10.14503/THIJ-19-6982subject
Has Abstractpub_date
2020-08-01 00:00:00pages
250-257issue
4eissn
0730-2347issn
1526-6702pii
450152journal_volume
47pub_type
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