Flashcards in 41. Superior vena cava syndrome Deck (8):
1. malignacy ( pancoast tumor)
2. thrombosis from indwelling catheter
medical emegerncy because
Can raise intracranial
pressure (if obstruction is severe) ---> headaches,
dizziness, ---> increased risk of aneurysm/rupture of
An obstruction of the SVC that impairs blood
drainage from the head (“facial plethora”;
note blanching after fingertip pressure in
neck (jugular venous distention), and upper
2.blanching after fingertip pressure in neck
3. (jugular venous distention),
4.upper extremities (edema).
• Superior vena cava syndrome is most likely caused by what?
Neoplasms and thromboses from indwelling catheters
• A patient with superior vena cava syndrome is rushed to the ED by his doctor. Why does the doctor consider this a major emergency?
If obstruction is severe, elevated cranial pressure may increase the risk of aneurysm formation or rupture of intracranial arteries
• Superior vena cava syndrome puts a patient at risk of rupture of what arteries?
Intracranial arteries, as a result of increased intracranial pressure