Key result
Elective catheter removal resolves hyperacute SVC syndrome due to central line thrombus despite therapeutic anticoagulation.
Why the study?
Superior vena cava syndrome typically presents with progressive symptoms over weeks to months, but hyperacute presentations are rare and not well characterized.
Case Report (n=1)
This case highlights the possibility of hyperacute SVC syndrome developing in less than an hour in oncology patients with central venous access, necessitating rapid recognition and multidisciplinary management.
Answers are grounded in this paper and cite their sources.
Prompts vigilance for hyperacute SVC syndrome with central lines in oncology; single case leaves open incidence and prevention needs.
Superior vena cava (SVC) syndrome is most often caused by malignant compression or thrombus formation and typically presents with progressive symptoms over weeks to months, while even acute cases usually evolve over several hours to days. We report a rare case of hyperacute SVC obstruction in a 53-year-old man with recurrent tongue carcinoma, a Hickman line in situ, and therapeutic anticoagulation for a recent pulmonary embolism. He developed profound cyanosis, facial and upper body swelling, and transient loss of consciousness within less than an hour. Imaging revealed a central line-associated thrombus causing complete SVC occlusion, and multidisciplinary input was required to balance the risks of catheter removal versus retention. This case underscores the importance of rapid recognition and coordinated management of SVC syndrome in high-risk oncology patients with central venous access.
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Eladl et al. (2025) conducted a case report in Superior Vena Cava Syndrome (n=1). Central venous catheter-associated thrombosis was evaluated on Symptom resolution. A 53-year-old man with tongue cancer developed hyperacute superior vena cava syndrome within minutes due to a central line-associated thrombus despite therapeutic anticoagulation, which resolved after elective catheter removal.
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