Sorry to hear you had problems after the surgery.

I got subclavien DVT last November. It was quite big thrombosis and it was obvious immediately after they did ultrasound. I didn't have many symptoms leading to one night when I woke up and my arm was huge and purple.

They did do thrombolysis (not sure why) and only put me on warfarin (and heparin for a few days before). I didn't actually had many problems. My arm was gradually getting better (in appearance/less swollen and dark) and I would say that after 3-4 months it return in normal state. I still have one prominent vein over my shoulder which does not bother me.

I didn't have PE.

After they did all the blood tests (for thrombophilias) they did MRI and found I probably have vein TOS on both sides. I am yet to make a final decision but I will probably do the surgery, although I have zero symptoms and MRI scan was not the clearest one for the diagnosis.

My vein is patent, not 100%, but for around 60-70%.