Original sentence: It is often seen with patients who have undergone endoscopic thoracic sympathectomy, a surgical procedure where the cut or clamp part of the sympathetic trunk to treat sweating of the hands or blushing
Edited sentence: It is often seen with patients who have undergone endoscopic thoracic sympathectomy, a surgical procedure wherein part of the sympathetic trunk is cut or clamped to treat sweating of the hands or blushing