B52-31 Incidental Finding of a Double Vena Cava Discovered During the Procedure

Dual superior vena cava is one of the unique developmental anomalies witnessed in 0.3-0.5% of healthy individuals and 4%-11% amongst those with congenital heart conditions. We present this initially confusing finding in this intensive care unit patient, who required a central venous catheter (CVC) placement via the left internal jugular vein due to right-sided neck contracture. Post-procedural chest radiography revealed an atypical vertical course of the catheter along the left mediastinum, raising suspicion for a vascular anomaly. Computed tomography of the chest confirmed the presence of bilateral SVCs, with the left-sided CVC terminating in the lower segment of the left SVC near its junction with the coronary sinus, consistent with correct intravascular placement. The patient didn’t have any hemodynamic complications as a consequence of catheter placement. The case highlights the prevalence of unique anatomy with dual superior vena cava and clinical awareness in vascular procedures. These anomalies are more common than often appreciated and can present a diverse relationship to other cardiovascular structures. Although such anomalies are frequently detected incidentally, their identification and thorough preprocedural imaging are essential to ensure procedural safety, optimize vascular access, and facilitate the detection of associated congenital abnormalities. This abstract is funded by: None