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Emergency transcatheter closure of a stented PDA in a patient with pulmonary atresia and intact ventricular septum: be ready for the unexpected!

ABSTRACT: Patients with congenital heart disease and duct-dependent pulmonary circulation can undergo stenting of the patent ductus arteriosus (PDA). This case shows that, due to the physiological changes occurring after stent implantation, sometimes it is necessary to close the stented PDA rather than to redilate it.

SUBMITTER: Faccini A

PROVIDER: S-EPMC5799631 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature

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Emergency transcatheter closure of a stented PDA in a patient with pulmonary atresia and intact ventricular septum: be ready for the unexpected!

Faccini Alessia A Butera Gianfranco G

Clinical case reports 20171223 2

Patients with congenital heart disease and duct-dependent pulmonary circulation can undergo stenting of the patent ductus arteriosus (PDA). This case shows that, due to the physiological changes occurring after stent implantation, sometimes it is necessary to close the stented PDA rather than to redilate it. ...[more]

PMID: 29445470

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Project description:OBJECTIVE:To assess the immediate effects of fetal pulmonary valvuloplasty on right ventricular (RV) size and function as well as in-utero RV growth and postnatal outcome. METHODS:Patients with pulmonary atresia with intact ventricular septum (PAIVS) or critical pulmonary stenosis (CPS) who underwent fetal pulmonary valvuloplasty at our center between October 2000 and July 2017 were included. Echocardiographic data obtained before and after the procedure were analyzed retrospectively (median interval after intervention, 1 (range, 1-3) days) for ventricular and valvular dimensions and ratios, RV filling time (duration of tricuspid valve (TV) inflow/cardiac cycle length), TV velocity time integral (TV-VTI)?×?heart rate (HR) and tricuspid regurgitation (TR) velocity. Longitudinal data were collected from only those fetuses followed up in our center. Outcome was assessed using the scoring system as described by Roman et al. for non-biventricular outcome. RESULTS:Thirty-five pulmonary valvuloplasties were performed in our institution on 23 fetuses with PAIVS (n?=?15) or CPS (n?=?8). Median gestational age at intervention was 28?+?4 (range, 23?+?6 to 32?+?1) weeks. No fetal death occurred. Immediately after successful intervention, RV/left ventricular length (RV/LV) ratio (P???0.0001), TV/mitral valve annular diameter (TV/MV) ratio (P???0.001), RV filling time (P???0.00001) and TV-VTI?×?HR (P???0.001) increased significantly and TR velocity (P???0.001) decreased significantly. In fetuses followed longitudinally to delivery (n?=?5), RV/LV and TV/MV ratios improved further or remained constant until birth. Fetuses with unsuccessful intervention (n?=?2) became univentricular, all others had either a biventricular (n?=?15), one-and-a-half ventricular (n?=?3) or still undetermined (n?=?3) outcome. Five of nine fetuses with a predicted non-biventricular outcome, in which the procedure was successful, became biventricular, while two of nine had an undetermined circulation. CONCLUSION:In selected fetuses with PAIVS or CPS, in-utero pulmonary valvuloplasty led immediately to larger RV caused by reduced afterload and increased filling, thus improving the likelihood of biventricular outcome even in fetuses with a predicted non-biventricular circulation. © 2018 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.

Dataset Information

Emergency transcatheter closure of a stented PDA in a patient with pulmonary atresia and intact ventricular septum: be ready for the unexpected!

Publications

Emergency transcatheter closure of a stented PDA in a patient with pulmonary atresia and intact ventricular septum: be ready for the unexpected!

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