Comprehensive Analysis of the Aberrant Right Subclavian Artery: A Perspective from a Single Institute

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Abstract

Background/Objectives: This study aimed to provide a descriptive review of fetal aberrant right subclavian artery (ARSA), with a discussion of the genomic and structural anatomy and perinatal prognosis in our hospital’s obstetric department. Methods: In total, 3266 fetal level II sonographies were performed between January 2020 and June 2023. The 21 cases diagnosed with ARSA were included in this study. Obstetric ultrasound screening, noninvasive prenatal screening, and fetal karyotyping were performed. Fetal echocardiograms, postnatal information, and follow-up data were recorded. Results: In our dataset of 3266 cases, the overall incidence rate of ARSA was 0.6%. Of the 21 fetuses with ARSA, no abnormalities were detected in either prenatal or genetic tests, and no chromosomal anomalies were identified. Conclusions: Our study provides informative insights into ARSA, emphasizing the need for a comprehensive evaluation of its structural and genetic aspects. The findings of this study prompt further exploration, especially regarding the increasing incidence of ARSA and the potential role of advanced genetic analyses in enhancing diagnostic precision and fetal prognostic evaluation.

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