"He knows the procedure is controversial because of the unpredictability of side-effects"

Information about surgery for sweaty hands: "surgeon "knows the procedure is controversial because of the unpredictability of side-effects"

"Ferrar believes much of the controversy lies in surgeons, mainly in America, who perform the surgery on anyone who asks for it, rather than the severe end of the spectrum.
"In America there are so many that have been operated on when it hasn't been necessary, or the surgeon has given the patient false expectations, that there are support groups for people who've had complications or adverse effects. The people that come to me are almost self-selecting; they've tried everything else."
The youngest patient he has performed an endoscopic thoracic sympathectomy on was 8 years old, with most being in puberty (when the condition tends to arise). Or they are in their 20s when they are beginning relationships and jobs."

Publication info: Waikato Times [Hamilton, New Zealand] 07 Apr 2012: 22."