Double superior vena cava: right connected to left atrium and left to coronary sinus

Area of Science:

• Cardiology
• Congenital Heart Disease
• Vascular Anatomy

Background:

• Persistent superior vena cava (PSVC) is a rare congenital anomaly.
• It can present with variations in drainage patterns.
• Understanding these variations is crucial for clinical management.

Observation:

• A case is described where a left PSVC drained into the coronary sinus.
• This anomaly coexisted with a right superior vena cava (RSVC) draining into the left atrium.
• A large interjugular bridging vein was noted.

Findings:

• The coexistence of left PSVC and RSVC with specific drainage patterns presents a complex anatomical scenario.
• The presence of a large interjugular bridging vein may facilitate venous return, potentially mitigating cyanosis.
• Absence of cyanosis suggests adequate physiological compensation.

Implications:

• Surgical intervention for PSVC may not always be mandatory, especially in asymptomatic cases.
• Accurate diagnosis through imaging is essential for appropriate clinical decision-making.
• This case highlights the importance of recognizing diverse venous anomalies in congenital heart disease.