CharlesA.Gooding1Gary K. Stima&
In vivo and cadaver studies demonstrated that turning the head to one side results in torsion and compression of the ipsilateral internal jugular vein. This can obstruct venous drainage from the head and cause increased intracranial pressure in patients who have had ligation or resection of the contralateral jugular vein or who have maldevelopment of the contralateral dural sinuses.
Our studies cleanly demonstrated that turning the head to one side results in torsion-compression of the ipsilatenal internal jugular vein, which could have hemodynamically significant consequences. Though many collateral channels for venous drainage of the head are available to compensate, they may be severely compromised if resection, ligation, or cathetenization of the vein, on anatomic variations in the venous channels have already obstructed the contralatenal internal jugular vein.