title: [Effect of aromatase inhibitors on bone metabolism].
abstract: Aromatase inhibitors (AI) increase the disease-free survival of patients with receptor-positive breast cancer. They inhibit the endogenous production of estrogen by 50-90% and, in contrast to tamoxifen, reduce bone mineral density. Placebo-controlled studies have lacked statistical power to detect changes in fracture incidence; however, AI increases the incidence of fractures in comparison with tamoxifen. Therefore, we suggest that post-menopausal women starting on AI should be offered a DXA scan and that antiresorptive therapy should be considered for those with osteoporosis.
authors.affiliation: Odense Universitetshospital, Endokrinologisk Afdeling M. Larsfolkestad@surfmail.dk
authors.forename: Lars
authors.initials: L
authors.lastname: Folkestad
authors.forename: Jon Kroll
authors.initials: JK
authors.lastname: Bjerregaard
authors.forename: Nina H
authors.initials: NH
authors.lastname: Bjarnason
authors.forename: Kim T
authors.initials: KT
authors.lastname: Brixen
mesh_terms: D015502:Absorptiometry, Photon; D000368:Aged; D018931:Antineoplastic Agents, Hormonal / Q000008:administration & dosage* / Q000009:adverse effects; D047072:Aromatase Inhibitors / Q000008:administration & dosage* / Q000009:adverse effects; D015519:Bone Density / Q000187:drug effects*; D050071:Bone Density Conservation Agents / Q000627:therapeutic use; D001842:Bone and Bones / Q000378:metabolism*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000378:metabolism; D005260:Female; D005598:Fractures, Spontaneous / Q000139:chemically induced; D006801:Humans; D008875:Middle Aged; D015663:Osteoporosis, Postmenopausal / Q000150:complications / Q000188:drug therapy / Q000378:metabolism; D012307:Risk Factors
chemical_list: D018931:Antineoplastic Agents, Hormonal; D047072:Aromatase Inhibitors; D050071:Bone Density Conservation Agents