International Journal of Research and Innovation in Applied Science (IJRIAS)
Isolated Aberrant Right Subclavian Artery Detected Prenatally In a Low-Risk Primigravida: A Case Report
Published March 11, 2026 • Vol. 11, Issue 2, pp. 794–796Open Access
DOI: 10.51584/IJRIAS.2026.110200066
Abstract
Background: Aberrant right subclavian artery (ARSA) is the most common aortic arch variant increasingly recognised during routine fetal echocardiography. Although historically linked to chromosomal abnormalities, emerging evidence shows that isolated ARSA in screen-negative pregnancies has a favourable prognosis.
Case: We report a 24-year-old primigravida with a normal Level II ultrasound and a negative quadruple screening test. A routine fetal echocardiogram at 24 weeks demonstrated an isolated ARSA without any other cardiac or extracardiac anomalies. Pregnancy and delivery were
uneventful. Postnatal echocardiography confirmed isolated ARSA, and the neonate remained asymptomatic.
Conclusion: When identified as an isolated finding in the setting of normal aneuploidy screening, ARSA represents a benign vascular variant with excellent perinatal outcomes. Comprehensive counselling helps avoid unnecessary invasive testing and parental anxiety.
Keywords: Aberrant right subclavian artery, fetal echocardiography, prenatal diagnosis
| Journal | International Journal of Research and Innovation in Applied Science (IJRIAS) |
|---|---|
| ISSN | 2454-6194 |
| Volume / Issue | Volume 11, Issue 2 |
| Pages | 794–796 |
| Publication date | March 11, 2026 |
| DOI | 10.51584/IJRIAS.2026.110200066 |
| Publisher | RSIS International |
| License | Open Access |
How to cite this article
Dr. Shri Ram Rundla, Anjali Bijarniya, Tanvi Katoch, & Komal Tiwari (2026). Isolated Aberrant Right Subclavian Artery Detected Prenatally In a Low-Risk Primigravida: A Case Report. International Journal of Research and Innovation in Applied Science (IJRIAS), 11(2), 794-796. https://doi.org/10.51584/IJRIAS.2026.110200066
BibTeX
@article{Dr2026,
title = {Isolated Aberrant Right Subclavian Artery Detected Prenatally In a Low-Risk Primigravida: A Case Report},
author = {Dr. Shri Ram Rundla and Anjali Bijarniya and Tanvi Katoch and Komal Tiwari},
journal = {International Journal of Research and Innovation in Applied Science (IJRIAS)},
volume = {11},
number = {2},
pages = {794--796},
year = {2026},
doi = {10.51584/IJRIAS.2026.110200066},
publisher = {RSIS International}
}