Physiological impact and transcatheter treatment of the persisting left superior caval vein

Area of Science:

• Cardiology
• Congenital Heart Disease
• Vascular Anatomy

Background:

• A left superior caval vein (LSCV) is an anatomical variation that can be present in both structurally normal and malformed hearts.
• The physiological significance of an LSCV is variable, depending on its drainage pathway and the presence of other cardiac anomalies.
• Understanding LSCV variations is crucial for diagnosing and managing potential cardiac dysfunction.

Purpose of the Study:

• To review the clinical presentation and management of patients with a left superior caval vein.
• To evaluate the efficacy of transcatheter techniques in addressing physiological dysfunction caused by LSCV.
• To delineate the roles of surgical versus transcatheter interventions in treating LSCV-related cardiac issues.

Main Methods:

• Case review of three patients with a left superior caval vein.
• Description of transcatheter interventions employed for physiological correction.
• Analysis of treatment strategies based on venous connections and associated cardiac malformations.

Main Results:

• One patient had an LSCV without other cardiac lesions; two had LSCVs as part of complex cardiac malformations.
• Transcatheter techniques were successfully utilized in all three cases to manage the physiological consequences of the LSCV.
• Treatment outcomes were influenced by the specific connections of the LSCV and the complexity of associated cardiac lesions.

Conclusions:

• Left superior caval vein is a significant anatomical variation requiring careful consideration in cardiac assessment.
• Transcatheter interventions offer a viable and effective treatment modality for physiological dysfunction associated with LSCV.
• The choice between surgical and transcatheter approaches is dictated by the specific anatomical context and complexity of the cardiac malformation.