superior vena cava syndrome
Also written as: SVCS — Superior Vena Cava Syndrome
Clinical syndrome caused by compression or obstruction of the superior vena cava, often by thoracic malignancies.
Full Definition
Superior vena cava syndrome (SVCS) is a clinical condition resulting from compression, invasion, or thrombosis of the superior vena cava, leading to impaired venous return from the upper body. In thoracic oncology, SVCS is most commonly caused by lung cancer, particularly small cell lung cancer, or mediastinal lymphomas. Patients present with facial swelling, arm edema, dyspnea, and prominent collateral venous circulation on the chest wall. SVCS can be a medical emergency requiring urgent intervention, though the severity depends on the rate of obstruction development. Treatment may include radiation therapy, chemotherapy, endovascular stenting, or surgical bypass depending on the underlying cause and patient condition.
Usage
Usage note: Medical emergency in severe cases; SVCS is acceptable abbreviation in clinical contexts.
In Context
- "The patient developed superior vena cava syndrome secondary to mediastinal lymphadenopathy." — Clinical presentation
- "Emergency radiation therapy was initiated for symptomatic SVCS relief." — Treatment plan