The kernal of truth in that is that there is much overlap in SNS. The heart is sympathetically innervated from about T1-T5. I have lost much, but not all of the sympathetic signal to my heart. Of course he is full of it. They are trying to reassure people that everything will adjust and be all right after surgery. Of course, if that were true, the upper body would start sweating again, and the whole thing would be pointless.

BTW, the head of ETS at Cedars is now Marty Cooper, king of the open sympathectomies, and mentor to Dr. Fischel.