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Persistent Left Superior Vena Cava: Implications for Long-Term Arteriovenous Fistula Patency and Potential Cardiac Complications

Year: 2025

Type: article

Abstract: A persistent left superior vena cava (PLSVC) is a rare congenital thoracic venous anomaly where the left SVC exists as a separate vessel and drains into the right atrium (RA), most commonly, through the coronary sinus (CS) in about 80-90% or directly into the left atrium (LA). This vascular abnormality can present challenges during central dialysis catheter placement and for the maintenance of arteriovenous fistulas (AVF). In addition, dilation of the coronary sinus from increased blood flow secondary to a PLSVC can cause cardiac complications, especially arrhythmias. We present a case of PLSVE incidentally detected after a dysfunctional arteriovenous fistula.

Source: Cureus

DOI: 10.7759/cureus.90296

Authors: Christopher D Louviere, Alejandro Serrano-Berrios, Dheeraj R Gopireddy, Taylor S Harmon, Grit A Adler, Renato Abu Hana

Institutions: University of Florida, University of Florida Health Science Center

Language: English

Topic: Vascular anomalies and interventions

Subfield: Surgery

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4413441554