Prenatal diagnosis of right aortic arch: associated anomalies and fetal prognosis according to different subtypes.
J Perinat Med
; 52(3): 304-309, 2024 Mar 25.
Article
in En
| MEDLINE
| ID: mdl-38281095
ABSTRACT
OBJECTIVES:
Right aortic arch (RAA) is a rare anomaly with an incidence of 0.1â¯% in the adult population and low-risk fetuses. Our aim in this study was to evaluate associated anomalies and conditions according to subtypes.METHODS:
This was a retrospective study examining consecutive pregnancies diagnosed with RAA in our hospital between 2018 and 2022. Fetuses with RAA were divided into three groups, RAA with right-sided ductus arteriosus (RAA-RDA), RAA with left-sided ductus arteriosus (RAA-LDA), and RAA with a double aortic arch (RAA-DAA).RESULTS:
A total of 81 fetuses were diagnosed as having RAA during the study period. The rate of cardiac anomalies (82.8â¯%) in the RAA-RDA group was higher than in the RAA-LDA (17.6â¯%) and RAA-DAA (22.2â¯%) groups (p<0.001). No statistically significant difference was found between the groups in terms of maternal age, diagnosis week, pregnancy outcome, extracardiac anomalies, and genetic anomalies. Three (8â¯%) of 36 fetuses with isolated RAA who resulted in live birth developed symptoms related to the vascular ring, and one (2.7â¯%) newborn with RAA-DAA underwent surgery.CONCLUSIONS:
The incidence of cardiac anomalies is high in fetuses with RAA-RDA. Ultrasound examinations should be performed for cardiac anomalies and additional structural anomalies. Vascular ring formation is a rare but important complication due to compression risk to the trachea and esophagus.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aortic Arch Syndromes
/
Vascular Ring
/
Heart Defects, Congenital
Type of study:
Diagnostic_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Female
/
Humans
/
Newborn
/
Pregnancy
Language:
En
Journal:
J Perinat Med
Year:
2024
Document type:
Article