Hi tdinant,

Was your PT and other therapies TOS specific or more of a general PT approach?

Is your TOS more vascular related than nerve related- or both?
If vascular i would think surgery would be a benefit for both arms- but maybe not a severe cause of the sx?

Have you done bodywork , posture work, - Peter Edgelow, Sharon Butler, Alexander tech types?

maybe search the terms scar tissue, adhesions, and read about the possible RSD & TOS & surgery threads.

If you are really considering surgery ask doctors about the possibility of RSD after and if they take precautions for that.
And be sure your surgeon has done very many of these types of surgeries and is an expert at it.

I forgot to ask how you got TOS?
a repetitive injury over time , or an acute injury of some sort?