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Cited by 35Thyroid Disorders and TreatmentsThyroid and Parathyroid SurgeryBone health and osteoporosis research

Favorable clinical heart and bone effects of anti-thyroid drug therapy in endogenous subclinical hyperthyroidism

Buscemi, S., Verga, S., Cottone, S., Andronico, G., D’Orio, L., Mannino, V., Panzavecchia, D., Vitale, F. +1 more·2007·Journal of Endocrinological Investigation
DOI 10.1007/bf03347430
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Abstract

Although subclinical hyperthyroidism (SCH) has been associated with increased risk of osteoporosis and cardiac arrhythmias, its treatment is still controversial. This study was designed as a prospective, randomized, intervention, control-study with a 1-year follow-up in order to investigate whether normalization of serum TSH in SCH using methimazole has favorable bone and heart clinical effects. Fourteen patients with endogenous SCH (not Graves' disease) were enrolled, 7 (5 women/2 men; group T) were treated with methimazole (2.5-7.5 mg/day), and 7 (5 women/2 men; group C) were followed without treatment; 10 healthy subjects were also included in the study as controls. Serum free-T3 (FT3), free-T4 (FT4) and TSH, thyroid echography, bone stiffness index (SI), as measured by heel ultrasonometry, and 24-h electrocardiography monitoring were obtained. SCH patients exhibited higher systolic and diastolic blood pressure than control subjects. They also had a significantly higher number of both ventricular premature beats (VPB) (mean+/-SEM: 681+/-238 vs 6+/-2 beats/24 h; p<0.02) and atrial premature beats (APB) (mean+/-SEM: 495+/-331 vs 7+/-2 beats/24 h; p<0.0001), and a lower SI (66+/-5 vs 96+/-3; p<0.001). Twelve months after normalization of TSH with the use of methimazole, the number of VPB decreased significantly (947+/-443 vs 214+/-109 beats/24 h; p<0.05) while it remained unchanged in untreated SCH patients (414+/-163 vs 487+/-152 beats/24 h; p=ns). An insignificant therapy effect was observed as far as APB were concerned (826+/-660 vs 144+/-75 beats/24 h; p=ns), however their number increased significantly in the untreated group (463+/-49 vs 215+/-46 beats/24 h; p<0.05). The SI increased significantly as a result of therapy in group T (64.1+/-4.8 vs 70.0+/-5.3; p<0.02) and was further reduced in group C at the end of the study (69.1+/-7.3 vs 62.9+/-7.1; p<0.001). No adverse effect was observed in group T. In conclusion, anti-thyroid therapy seems to have favor-able bone and heart clinical effects in subjects with endogenous SCH.

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Crossref · 10.1007/bf03347430

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Authors
Buscemi, S., Verga, S., Cottone, S., Andronico, G., D’Orio, L., Mannino, V., Panzavecchia, D., Vitale, F., & Cerasola, G.
Affiliations
University of Palermo (IT)
Corresponding author
Buscemi, S.
ORCID
Venue
Journal of Endocrinological Investigation
Publisher
Springer Science and Business Media LLC
Published
2007-03
Volume
30
Issue
3
Pages
230-235
ISSN
  • 0391-4097 (ISSN-L)
  • 1720-8386
DOI
10.1007/bf03347430
OpenAlex
W1990902391
Cited by
35
References
33
Citations by year
2026: 1 · 2023: 1 · 2021: 1 · 2020: 3 · 2019: 3 · 2018: 1 · 2016: 1 · 2015: 4 · 2014: 4 · 2013: 2 · 2012: 4
FWCI
1.95
Type
journal article
Language
en
Open access
closed
Licence
www.springer.com/tdm (tdm)
Locations
  • Journal of Endocrinological Investigation (publishedVersion)
  • PubMed (publishedVersion)
  • Nova Science Publishers (Nova Science Publishers, Inc.) (submittedVersion)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
subclinical hyperthyroidism, methimazole, antithyroid drug therapy, TSH normalization, premature ventricular contractions, premature atrial contractions, cardiac arrhythmias, osteoporosis, blood pressure, Graves' disease, thyroid function
MeSH terms
Blood Pressure, Female, Follow-Up Studies, Heart Rate, Humans, Hyperthyroidism, Male, Middle Aged, Prospective Studies, Antithyroid Agents, Thyroid Hormones, Bone Density

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