Research Article

Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights

Volume: 11 Number: 6 November 4, 2025

Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights

Abstract

Objectives: This study therefore aims to determine the perinatal prognosis and delineate the key risk factors associated with outcomes in fetuses with a prenatal diagnosis of absence of pulmonary valve syndrome (APVS), with particular emphasis on Doppler ultrasound parameters, the presence of extracardiac anomalies, and comprehensive genetic findings - including rare monogenic mutations - as significant contributors to the observed perinatal course.

Methods: This retrospective study included eight fetuses diagnosed with absent pulmonary valve syndrome (APVS) between 2020 and 2024 at a tertiary perinatology referral center. One patient with major extracardiac anomalies was electively terminated and excluded from the outcome analysis. For the remaining seven fetuses, detailed fetal echocardiographic assessments—including cardiac anatomy and Doppler hemodynamic parameters - were evaluated alongside genetic testing results (prenatal and/or postnatal), associated extracardiac anomalies, and postnatal clinical and surgical outcomes.

Results: Among eight fetuses prenatally diagnosed with APVS, one case was electively terminated due to major extracardiac anomalies and excluded from further analysis. All of the remaining seven cases resulted in live births. Four neonates underwent surgical intervention, three of whom survived postoperatively, yielding a surgical survival rate of 75%. Two fetuses that developed hydrops fetalis died in the early postnatal period before surgery could be performed. The overall perinatal mortality rate was 57.1%. Clinically significant genetic anomalies, including trisomy 21, 22q11.2 deletion, and a novel ABAT gene mutation detected via prenatal whole-exome sequencing, were identified in three patients (42.9%). Nonsurvivors were more likely to present with an absent ductus arteriosus and severely dilated pulmonary arteries.

Conclusions: Our study highlights that prognosis is more strongly influenced by prenatal hemodynamic markers - such as pulmonary artery velocities, ductus arteriosus status, and hydrops - than by anatomic subtype. The identification of both common chromosomal anomalies and novel ABAT gene mutations underscores the value of comprehensive genetic evaluation.

Keywords

Ethical Statement

This study was approved by the Başakşehir Çam and Sakura City Hospital Clinical Research Ethics Committee (Decision No: 2024-63; date: 31.01.2025). All procedures were conducted in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments. Written informed consent was obtained from the parents of all patients to use the data for scientific purposes.

References

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Details

Primary Language

English

Subjects

Pediatric Cardiology, Obstetrics and Gynaecology

Journal Section

Research Article

Early Pub Date

August 28, 2025

Publication Date

November 4, 2025

Submission Date

July 14, 2025

Acceptance Date

August 18, 2025

Published in Issue

Year 2025 Volume: 11 Number: 6

APA
Arslanoğlu, T., Alpay, V., & Özyılmaz, İ. (2025). Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights. The European Research Journal, 11(6), 1108-1116. https://doi.org/10.18621/eurj.1741967
AMA
1.Arslanoğlu T, Alpay V, Özyılmaz İ. Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights. Eur Res J. 2025;11(6):1108-1116. doi:10.18621/eurj.1741967
Chicago
Arslanoğlu, Tuğçe, Verda Alpay, and İsa Özyılmaz. 2025. “Prenatal Diagnosis and Postnatal Outcomes of Absent Pulmonary Valve Syndrome: A Case Series With Genetic and Hemodynamic Insights”. The European Research Journal 11 (6): 1108-16. https://doi.org/10.18621/eurj.1741967.
EndNote
Arslanoğlu T, Alpay V, Özyılmaz İ (November 1, 2025) Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights. The European Research Journal 11 6 1108–1116.
IEEE
[1]T. Arslanoğlu, V. Alpay, and İ. Özyılmaz, “Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights”, Eur Res J, vol. 11, no. 6, pp. 1108–1116, Nov. 2025, doi: 10.18621/eurj.1741967.
ISNAD
Arslanoğlu, Tuğçe - Alpay, Verda - Özyılmaz, İsa. “Prenatal Diagnosis and Postnatal Outcomes of Absent Pulmonary Valve Syndrome: A Case Series With Genetic and Hemodynamic Insights”. The European Research Journal 11/6 (November 1, 2025): 1108-1116. https://doi.org/10.18621/eurj.1741967.
JAMA
1.Arslanoğlu T, Alpay V, Özyılmaz İ. Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights. Eur Res J. 2025;11:1108–1116.
MLA
Arslanoğlu, Tuğçe, et al. “Prenatal Diagnosis and Postnatal Outcomes of Absent Pulmonary Valve Syndrome: A Case Series With Genetic and Hemodynamic Insights”. The European Research Journal, vol. 11, no. 6, Nov. 2025, pp. 1108-16, doi:10.18621/eurj.1741967.
Vancouver
1.Tuğçe Arslanoğlu, Verda Alpay, İsa Özyılmaz. Prenatal diagnosis and postnatal outcomes of absent pulmonary valve syndrome: A case series with genetic and hemodynamic insights. Eur Res J. 2025 Nov. 1;11(6):1108-16. doi:10.18621/eurj.1741967

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