# Venous Outflow Obstruction **URL:** \ **Category:** General\ **Created:** [May 26, 2023, 7:00pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494 "2023-05-26T19:00:07Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Isaiah\_40\_31](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/isaiah_40_31/32/3054_2.png) [@Isaiah\_40\_31](https://forum.livingwitheagle.org/u/Isaiah_40_31)\ **Post date:** [May 26, 2023, 7:00pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/1 "2023-05-26T19:00:07Z")
_Venous Outflow Obstruction_ is the new terminology for IJV compression in the ENT world. It can be caused by the styloid process, the transverse processes of C-1, & sometimes C-2 (rare), scar tissue, muscle/other soft tissues, and other things. Dr. Costantino has suggested that if you are diagnosed with Eagle Syndrome w/ IJV compression, you address it as Eagle Syndrome with Venous Outflow Obstruction as opposed to Eagle Syndrome with IJV compression. VOO is much more descriptive terminology & may be more useful in helping the patient find a doctor who does the proper surgery to eliminate both problems. Apparently many people with ES have _vascular outflow obstruction_ but may not realize it. Thus, when a styloidectomy is performed, the surgeon, not being aware of the IJV blood flow issues, won’t take the next step to eradicate the cause. As a result, the constriction is not dealt with, & the surgery is ultimately unsuccessful in symptoms eradication. I haven’t heard if ICA compression is now _Arterial Inflow Obstruction_, but it would seem to follow suit. Advice - when requesting a diagnostic CT scan for ES, let your doctor know you want to be evaluated for ES, _vascular, & arterial obstruction_. This way you should get a more complete picture of what could be causing your symptoms. ---
**Author:** ![KoolDude](https://avatars.discourse-cdn.com/v4/letter/k/aeb1de/32.png) [@KoolDude](https://forum.livingwitheagle.org/u/KoolDude)\ **Post date:** [May 26, 2023, 7:11pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/2 "2023-05-26T19:11:34Z")
> [@Isaiah\_40\_31](#): > > I haven’t heard if ICA compression is now _Arterial Outflow Obstruction_, but it would seem to follow suit. Good one @Isaiah_40_31 but I think Arterial _Inflow_ Obstruction would suit the ICA since the brain is supplied by it. Different naming conventions are used by different doctors so it is good that you pointed it out. I have also heard it referred to as _ **Stylocarotid artery syndrome** _ ---
**Author:** ![Isaiah\_40\_31](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/isaiah_40_31/32/3054_2.png) [@Isaiah\_40\_31](https://forum.livingwitheagle.org/u/Isaiah_40_31)\ **Post date:** [May 26, 2023, 7:20pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/3 "2023-05-26T19:20:50Z")
😂 I was thinking outflow as in the blood can’t flow out of the carotid but your comment is more logical, @KoolDude. I’ll correct it. I’ve heard Stylocarotid Artery Syndrome, but for IJV it’s been Eagle Syndrome w/ Jugular Variant. Someone needs to standardize all these titles!! ---
**Author:** ![KoolDude](https://avatars.discourse-cdn.com/v4/letter/k/aeb1de/32.png) [@KoolDude](https://forum.livingwitheagle.org/u/KoolDude)\ **Post date:** [May 26, 2023, 7:27pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/4 "2023-05-26T19:27:34Z")
> [@Isaiah\_40\_31](#): > > I was thinking outflow as in the blood can’t flow out of the carotid but your comment is more logical, Yeah, it depends on the frame of reference. If we make the brain the frame of reference then anything leaving it, we can call it outflow I guess vice versa anything coming in we can call it inflow. Similarly if we make the heart the frame of reference, then anything going out we can call it outflow ( Arteries will be outflow) and anything coming in will be inflow (Veins will be inflow). So you are not wrong calling outflow obstruction either. ---
**Author:** ![Isaiah\_40\_31](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/isaiah_40_31/32/3054_2.png) [@Isaiah\_40\_31](https://forum.livingwitheagle.org/u/Isaiah_40_31)\ **Post date:** [May 26, 2023, 7:35pm UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/5 "2023-05-26T19:35:27Z")
To be consistent w/ the IJV outflow (brain), ICA inflow makes more sense. ---
**Author:** ![Bailey](https://avatars.discourse-cdn.com/v4/letter/b/8491ac/32.png) [@Bailey](https://forum.livingwitheagle.org/u/Bailey)\ **Post date:** [May 27, 2023, 1:26am UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/6 "2023-05-27T01:26:50Z")
Do you are anyone know which of the doctors on the list here are familiar with VOO issues? ---
**Author:** ![Isaiah\_40\_31](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/isaiah_40_31/32/3054_2.png) [@Isaiah\_40\_31](https://forum.livingwitheagle.org/u/Isaiah_40_31)\ **Post date:** [May 27, 2023, 3:26am UTC](https://forum.livingwitheagle.org/t/venous-outflow-obstruction/13494/7 "2023-05-27T03:26:14Z")
Dr. Costantino & Dr. Hepworth are the two we think have the most experience. There may be other ES but their names haven’t landed on our forum yet.