Thyroid-stimulating Hormone Suppressive Therapy and Osteoporosis: A Review and Meta-analysis
Abstract
Background: Osteoporosis is a common morbid and mortal disease; thyroidstimulating hormone (TSH) suppression is the state-of-the-art for postoperative
differentiated thyroid carcinoma (DTC). However, its association with osteoporosis
remains controversial. The current meta-analysis assessed the relationship between
TSH suppressive therapy and osteoporosis among patients with DTC.
Methods: We systematically searched PubMed, Cochrane Library, EBSCO, and the
first 100 articles in Google Scholar for relevant articles published in English during
the period from 2008 to November 2020. The keywords differentiated thyroid cancer,
TSH suppression, osteoporosis, low bone mineral density, osteopenia; fracture risk,
disturbed bone micro-architecture, bone loss, and trabecular bone were used. One
hundred and eighty-four articles were retrieved; of them, fourteen were eligible and
met the inclusion and exclusion criteria. The RevMan system was used for data analysis.
Results: We included 36 cohorts from 15 studies, the studies showed higher
osteoporosis and osteopenia among TSH-suppressed women, odd ratio, 2.64, 1.48–
4.68 and 2.23, 0.33–14.96, respectively. High heterogeneity was observed, I2 = 68%
and 96%, respectively). The sub-analysis showed a lower bone mineral density among
postmenopausal women at both femoral neck and lumbar spines, odds ratio, –0.02,
–0.07 to 0.04, and –0.03, –0.06 to 0.01, I2 for heterogeneity, 69%, and 51% in contrast
to men and premenopausal women who showed normal or higher bone density.
Conclusion: TSH suppression for DTC was associated with osteoporosis and
osteopenia among postmenopausal women but not premenopausal women or men.
Studies focusing on trabecular bone scores are needed.
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