Nonmalignant Causes of Superior Vena Cava (SVC) Syndrome
Superior Vena Cava (SVC) syndrome can be caused by various nonmalignant conditions that affect the blood vessels. These conditions include aortic aneurysms, large vessel vasculitis, and, although rare, mediastinal fibrosis. In addition, doctors have found cases of SVC syndrome in patients with tuberculosis, syphilis, lung infections, and actinomycosis, which is a rare bacterial infection that spreads through body tissues. Interestingly, a growing number of individuals diagnosed with benign tumors such as teratoma, thymoma, or dermoid cysts also develop SVC syndrome. Moreover, researchers are now discovering more cases in individuals with thrombosis resulting from the use of pacemakers and central venous catheters. These medical devices can lead to blood clots that obstruct the normal blood flow.
SVC Syndrome in Children
While uncommon, children with cancer can develop SVC syndrome. The narrower and softer trachea in children makes them more susceptible to breathing difficulties when there is swelling in the neck or upper torso. To address this issue, medical professionals typically admit the child to the Intensive Care Unit (ICU) for close monitoring of vital signs, administration of supplemental oxygen, and ensuring proper hydration.