Peer-reviewedCC BY 4.0Journal of the Society for Cardiovascular Angiography & Interventions
Interrupted Inferior Vena Cava With Azygos Continuation—A Procedural Challenge During Transcatheter Aortic Valve Replacement: A Case Report
4 affiliations
- 1Department of Cardiology, University of Arkansas for Medical Sciences, Little Rock, Arkansas
- 2Division of Cardiology, Scripps Clinic, La Jolla, California
- 3Department of Cardiology, VA Central Arkansas Health Care, Little Rock, Arkansas
- 4Department of Cardiology, Arkansas Heart Hospital, Little Rock, Arkansas
Abstract
Interrupted inferior vena cava with azygos continuation is a rare congenital venous anomaly characterized by the absence of the hepatic segment of the inferior vena cava, with venous return from the lower extremities redirected through a dilated azygos vein into the superior vena cava. Although typically clinically silent, this anomaly can pose significant challenges during transcatheter procedures requiring femoral venous access. We describe a case of interrupted inferior vena cava with azygos continuation that was incidentally discovered during transcatheter aortic valve replacement after difficulty advancing a temporary transvenous pacemaker via the femoral venous approach.
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BibTeX
@article{lee2026interrupted,
title = {{Interrupted Inferior Vena Cava With Azygos Continuation—A Procedural Challenge During Transcatheter Aortic Valve Replacement: A Case Report}},
author = {Steve Kibuom Lee and KaChon Lei and Malek Al-Hawwas and William Aimar Rollefson},
journal = {Journal of the Society for Cardiovascular Angiography \& Interventions},
year = {2026},
month = aug,
doi = {10.1016/j.jscai.2026.105563},
url = {https://doi.org/10.1016/j.jscai.2026.105563},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Interrupted Inferior Vena Cava With Azygos Continuation—A Procedural Challenge During Transcatheter Aortic Valve Replacement: A Case Report
AU - Steve Kibuom Lee
AU - KaChon Lei
AU - Malek Al-Hawwas
AU - William Aimar Rollefson
PY - 2026
DA - 2026/08/04
JO - Journal of the Society for Cardiovascular Angiography & Interventions
DO - 10.1016/j.jscai.2026.105563
UR - https://doi.org/10.1016/j.jscai.2026.105563
AB - Interrupted inferior vena cava with azygos continuation is a rare congenital venous anomaly characterized by the absence of the hepatic segment of the inferior vena cava, with venous return from the lower extremities redirected through a dilated azygos vein into the superior vena cava. Although typically clinically silent, this anomaly can pose significant challenges during transcatheter procedures requiring femoral venous access. We describe a case of interrupted inferior vena cava with azygos continuation that was incidentally discovered during transcatheter aortic valve replacement after difficulty advancing a temporary transvenous pacemaker via the femoral venous approach.
SN - 2772-9303
ER -