IGF1 and acromegaly: In the partially cured group, 2 (25%) patients showed, 12 and 37 months after surgery, a biochemical status of active acromegaly (IGF1 SDS + 2.75 and + 3.62; GH nadir 0.6 and 0.5 μg/l, both assessed with CLIA; all data are summarized in Table 2).