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Vol. 82. Issue 3.
Pages 193-195 (01 March 2015)
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Vol. 82. Issue 3.
Pages 193-195 (01 March 2015)
Scientific Letter
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Premature constriction of the ductus arteriosus
Constricción precoz del ductus arterioso
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A. Ayerza Casasa,
Corresponding author
aayerzac@hotmail.com

Corresponding author.
, L. Jiménez Montañésa, M. López Ramóna, D. Lerma Puertasb, M.D. García de la Calzadaa
a Sección de Cardiología Pediátrica, Servicio de Pediatría, Hospital Universitario Miguel Servet, Zaragoza, Spain
b Servicio de Obstetricia y Ginecología, Diagnóstico Prenatal, Hospital Universitario Miguel Servet, Zaragoza, Spain
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Table 1. Characteristics of mothers and babies born with restricted blood flow through the ductus arteriosus.
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To the Editor:

Severe premature constriction of the foetal ductus arteriosus is a rare condition that may result in serious foetal and neonatal morbidity. Its development is usually associated with maternal exposure to nonsteroidal anti-inflammatory drugs,1 a polyphenol-rich diet2 or a tortuous ductus arteriosus,3 although there are cases in which the cause is not identified (idiopathic constriction of the ductus arteriosus).4

Since this is an important phenomenon, we present the characteristics of the pregnant women diagnosed with premature intrauterine ductus arteriosus constriction in our department.

To that end, we performed a retrospective descriptive study by reviewing the medical records of the pregnant women who received care in the paediatric cardiology department of our hospital in the past three years (2011–2013) in whom echocardiography revealed the presence of premature constriction of the ductus arteriosus, and also of the subsequent evolution of the newborns.

We found evidence of premature constriction of the ductus arteriosus in 7 pregnant women, all of who were diagnosed in the third trimester at a mean gestational age of 35.4 weeks. Table 1 shows the characteristics of the pregnant women. The outcomes were favourable when the triggering factor was removed (5/7). One of the foetuses had a severe restriction of blood flow through the ductus arteriosus with dilation and dysfunction of the right heart chambers and severe tricuspid regurgitation (Fig. 1) that persisted in the neonatal period and was observed to have normalised in subsequent follow-up office visits.

Table 1.

Characteristics of mothers and babies born with restricted blood flow through the ductus arteriosus.

Gestational age  Possible trigger  Impact on foetal haemodynamics  Maternal disease  Ethnicity  Disease in the newborn 
At diagnosis
35.4  Grapes  Yes  No  Caucasian  No 
35.4  Paracetamol  No  No  Caucasian  No 
32.0  Acetylsalicylic acid  No  Antiphospholipid syndrome  Caucasian  No 
35.0  Hydroxychloroquine  No  Lupus  Latin American  No 
35.0  Diclofenac and ibuprofen  Yes  Low back pain  Caucasian  Dilatation of right heart chambers and tricuspid regurgitation ++ 
35.6  No  No  No  Arabic  No 
36.4  No  No  No  Caucasian  No 
Figure 1.

Severe premature constriction of the ductus arteriosus. (A) Four-chamber view showing dilatation of the right heart chambers with the foramen ovale flap bulging into the left atrium. (B) Doppler of the ductus arteriosus revealing a continuous blood flow with increased systolic and diastolic flow velocities. (C) Severe tricuspid regurgitation. (D) Three-vessel view showing a reduced ductal diameter.

(0.23MB).

Premature constriction of the foetal ductus arteriosus has been well described in the literature, although there are few published articles on the subject, which may be due to underdiagnosis of this condition. It must be suspected, particularly in the third trimester, if foetal echocardiography reveals dilatation and dysfunction of the right ventricle, tricuspid regurgitation and increased flow velocity in the ductus arteriosus measured by Doppler in the absence of structural heart disease.4 Identifying the possible cause of the condition requires taking a detailed history with particular emphasis on the diet of the mother and any medications taken during pregnancy.5,6 In our series, the type of maternal exposure most frequently associated with this condition corresponded to nonsteroidal anti-inflammatory drugs, as described in the literature,1 although we found others such as exposure to hydroxychloroquine, which had not been described until now.

The early diagnosis of premature constriction of the foetal ductus arteriosus and the identification of its aetiology are essential in order to reverse or minimise haemodynamic alterations, as progression of this condition may lead to heart failure and foetal death.

References
[1]
A.T. Shastri, D. Abdulkarim, P. Clarke.
Maternal diclofenac medication in pregnancy causing in utero closure of the fetal ductus arteriosus and hydrops.
Pediatr Cardiol, 34 (2013), pp. 1925-1927
[2]
P. Zielinsky, J.L. Manica, A. Piccoli Jr., L.H. Nicoloso, R. Frajndlich, H.S. Menezes, et al.
Ductal flow dynamics and right ventricular size are influenced by maternal ingestion of polyphenol-rich common beverages in normal pregnancies.
Ultrasound Obstet Gynecol, 30 (2007), pp. 397
[3]
E.Y. Choi, M. Li, C.W. Choi, K.H. Park, J.Y. Choi.
A case of progressive ductal constriction in a fetus.
Korean Circ J, 43 (2013), pp. 774-781
[4]
C. Enzensberger, J. Wienhard, J. Weichert, A. Kawecki, J. Degenhardt, M. Vogel, et al.
Idiopathic constriction of the fetal ductus arteriosus: three cases and review of the literature.
J Ultrasound Med, 31 (2012), pp. 1285-1291
[5]
S. Sridharan, N. Archer, N. Manning.
Premature constriction of the fetal ductus arteriosus following the maternal consumption of chamomile herbal tea.
Ultrasound Obstet Gynecol, 34 (2009), pp. 358-359
[6]
V. Costa, A. Carriço, F. Valente.
Premature ductus arteriosus constriction: Consequences of excess maternal consumption of herbal and black tea.
Prog Obstet Ginecol, 56 (2013), pp. 144-146

Please cite this article as: Ayerza Casas A, Jiménez Montañés L, López Ramón M, Lerma Puertas D, García de la Calzada MD. Constricción precoz del ductus arterioso. An Pediatr (Barc). 2015;82:193–195.

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