Needs clarification: Persistent left superior vena cava ... what? Blockage? Enlargement? Syndrome? If you're talking syndrome/blockage, it causes backup of fluid into the head and neck regions resulting in congestion & swelling. This would likely be the reason for the discomfort.Resolution of the blockage should eventually relieve the backed up fluid.Manual lymphatic drainage may be of some benefit.
Answered 11/15/2014
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6 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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