What i was thinking (during work); could it be that flow problems in f.e. the left jugular corresponds with flow problems in vertebrae veins on the left side...there is genetic factor in misformed veins.Robnl wrote:What vessel has flow issues on the right side when you are upright and not when you are recumbent?
i'm thinking.....
I learned from vein docs that it's normal that the IJ collapses in erect position, that azygos has more flow in erect position.NZer1 wrote:Hi Dr,
hope this link works!
https://dl.dropboxusercontent.com/u/102 ... 202012.pdf
;)
Nigel
There are a variations in the designs of the dural sinuses, emissary and vertebral venous outlets. Some designs have greater drainage capacity than others and can therefore tolerate more blockage. Some drainage systems are prone to problems due to design. An anomoly or malformation in the internal jugular route, however, doesn'tnecessarily mean that the vertebral veins on the same side are anomolous.Robnl wrote:...What i was thinking (during work); could it be that flow problems in f.e. the left jugular corresponds with flow problems in vertebrae veins on the left side...there is genetic factor in misformed veins.
It just popped into my mind, maybe some problems are due to a genetic factor...
The IJs tend to collapse because during upright posture the brain preferentially drains into the vertebral veins.Robnl wrote:...I learned from vein docs that it's normal that the IJ collapses in erect position, that azygos has more flow in erect position.
