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Thirty years ago, a hypothesis stating that preoperative shrinkage of growth hormone (GH) producing macroadenomas with somatostatin receptor ligands (SRLs) may improve surgical outcome was put forward. Since then, multiple retrospective, non-randomized studies as well as four contemporary prospective, randomized studies have been performed to evaluate the validity of that hypothesis and are critically reviewed in this manuscript. With the exception of an occasional retrospective study the great preponderance of evidence could not confirm this hypothesis. Similarly, while all prospective studies suggested better surgical outcome for SRL-pretreated tumors 3 months post surgery, the differences in outcomes between pretreated and untreated control patients disappeared after 6–12 months. Thus, preoperative treatment of macrosomatotropinomas with SRLs should not be relied upon as a means to achieve complete tumor removal and cannot be recommended.

èndokrinnaâ hirurgiâ

Preoperative treatment of growth hormone (GH) producing macroadenomas with somatostatin receptor ligands (SRLs) to improve surgical outcome: a critical analysis