Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study

Background: To explore the necessity for prenatal diagnosis and evaluate related diagnostic methods for fetal visceral situs abnormalities. Methods: A retrospective analysis was performed to examine the clinical...

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Main Authors: Xiaoping Gong, Mingli Lv, Guanjie Wang, Yunyun Cao, Ping Chen, Hui Wang
Format: Article
Language:English
Published: IMR Press 2025-07-01
Series:Clinical and Experimental Obstetrics & Gynecology
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Online Access:https://www.imrpress.com/journal/CEOG/52/7/10.31083/CEOG38854
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author Xiaoping Gong
Mingli Lv
Guanjie Wang
Yunyun Cao
Ping Chen
Hui Wang
author_facet Xiaoping Gong
Mingli Lv
Guanjie Wang
Yunyun Cao
Ping Chen
Hui Wang
author_sort Xiaoping Gong
collection DOAJ
description Background: To explore the necessity for prenatal diagnosis and evaluate related diagnostic methods for fetal visceral situs abnormalities. Methods: A retrospective analysis was performed to examine the clinical data and pregnancy outcomes of 43 cases of fetal visceral situs abnormalities diagnosed at our hospital between May 2018 and September 2023, using prenatal ultrasound consultation as the diagnostic standard. Results: Among the 43 cases of fetal visceral situs abnormalities, 46.51% (20/43) were diagnosed as situs inversus, of which 95.00% (19/20) had no associated cardiac structural abnormalities. Heterotaxy syndrome accounted for 53.49% (23/43) of cases and was associated with cardiac structural abnormalities (100.00%, 23/23) of these patients. The most common cardiac abnormalities involved a single atrium and a single ventricle (56.52%, 13/23), followed by double-outlet right ventricle (34.78%, 8/23), and pulmonary artery stenosis (30.43%, 7/23). Amniocentesis was performed in 21 (48.84%, 21/43) cases, with both chromosomal karyotyping and chromosomal microarray analyses yielding negative results. Among these cases, 15 underwent whole-exome sequencing (WES), which identified 5 with suspected pathogenic gene variants related to primary ciliary dyskinesia (PCD) and 1 with Holt–Oram syndrome (HOS). Conclusions: Prenatal ultrasonography is a reliable method for diagnosing fetal visceral situs abnormalities. Moreover, for fetuses diagnosed with visceral situs abnormalities and pregnant women with normal chromosomal results, WES remains essential to improve the detection rates of PCD or other genetic abnormalities.
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spelling doaj-art-5c2e6d4c4f69406a9bfd37fa834cb58d2025-08-20T03:39:17ZengIMR PressClinical and Experimental Obstetrics & Gynecology0390-66632025-07-015273885410.31083/CEOG38854S0390-6663(25)02628-4Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective StudyXiaoping Gong0Mingli Lv1Guanjie Wang2Yunyun Cao3Ping Chen4Hui Wang5Department of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaDepartment of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaDepartment of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaDepartment of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaDepartment of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaDepartment of Ultrasound Diagnosis, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, 200030 Shanghai, ChinaBackground: To explore the necessity for prenatal diagnosis and evaluate related diagnostic methods for fetal visceral situs abnormalities. Methods: A retrospective analysis was performed to examine the clinical data and pregnancy outcomes of 43 cases of fetal visceral situs abnormalities diagnosed at our hospital between May 2018 and September 2023, using prenatal ultrasound consultation as the diagnostic standard. Results: Among the 43 cases of fetal visceral situs abnormalities, 46.51% (20/43) were diagnosed as situs inversus, of which 95.00% (19/20) had no associated cardiac structural abnormalities. Heterotaxy syndrome accounted for 53.49% (23/43) of cases and was associated with cardiac structural abnormalities (100.00%, 23/23) of these patients. The most common cardiac abnormalities involved a single atrium and a single ventricle (56.52%, 13/23), followed by double-outlet right ventricle (34.78%, 8/23), and pulmonary artery stenosis (30.43%, 7/23). Amniocentesis was performed in 21 (48.84%, 21/43) cases, with both chromosomal karyotyping and chromosomal microarray analyses yielding negative results. Among these cases, 15 underwent whole-exome sequencing (WES), which identified 5 with suspected pathogenic gene variants related to primary ciliary dyskinesia (PCD) and 1 with Holt–Oram syndrome (HOS). Conclusions: Prenatal ultrasonography is a reliable method for diagnosing fetal visceral situs abnormalities. Moreover, for fetuses diagnosed with visceral situs abnormalities and pregnant women with normal chromosomal results, WES remains essential to improve the detection rates of PCD or other genetic abnormalities.https://www.imrpress.com/journal/CEOG/52/7/10.31083/CEOG38854abnormal position of viscerawesprenatal diagnosis
spellingShingle Xiaoping Gong
Mingli Lv
Guanjie Wang
Yunyun Cao
Ping Chen
Hui Wang
Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
Clinical and Experimental Obstetrics & Gynecology
abnormal position of viscera
wes
prenatal diagnosis
title Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
title_full Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
title_fullStr Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
title_full_unstemmed Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
title_short Prenatal Diagnosis of Fetal Visceral Situs Abnormalities: A Retrospective Study
title_sort prenatal diagnosis of fetal visceral situs abnormalities a retrospective study
topic abnormal position of viscera
wes
prenatal diagnosis
url https://www.imrpress.com/journal/CEOG/52/7/10.31083/CEOG38854
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AT guanjiewang prenataldiagnosisoffetalvisceralsitusabnormalitiesaretrospectivestudy
AT yunyuncao prenataldiagnosisoffetalvisceralsitusabnormalitiesaretrospectivestudy
AT pingchen prenataldiagnosisoffetalvisceralsitusabnormalitiesaretrospectivestudy
AT huiwang prenataldiagnosisoffetalvisceralsitusabnormalitiesaretrospectivestudy