Effects of Antithyroid Drugs on Radioiodine Treatment: Systematic Review and Meta-analysis of Randomised Controlled Trials.
From: Institute of Nuclear Medicine, University Hospital Basel, Switzerland. m.a.walter@gmx.net
BMJ (Clinical research ed.)
- Publish Date: Mar 2007
- ISSN: 1468-5833
- Volume: 334
- Issue: 7592
- Pages: 514
- Medium: Internet
- Language: English
- Citation (JAMA): Walter Martin A, Briel Matthias, Christ-Crain Mirjam, et al. Effects of Antithyroid Drugs on Radioiodine Treatment: Systematic Review and Meta-analysis of Randomised Controlled Trials.. BMJ Mar 2007;334:514
Abstract
OBJECTIVE: To determine the effect of adjunctive antithyroid drugs on the risk of treatment failure, hypothyroidism, and adverse events after radioiodine treatment. DESIGN: Meta-analysis. DATA SOURCES: Electronic databases (Cochrane central register of controlled trials, Medline, Embase) searched to August 2006 and contact with experts. Review methods Three reviewers independently assessed trial eligibility and quality. Pooled relative risks for treatment failure and hypothyroidism after radioiodine treatment with and without adjunctive antithyroid drugs were calculated with a random effects model. RESULTS: We identified 14 relevant randomised controlled trials with a total of 1306 participants. Adjunctive antithyroid medication was associated with an increased risk of treatment failure (relative risk 1.28, 95% confidence interval 1.07 to 1.52; P=0.006) and a reduced risk for hypothyroidism (0.68, 0.53 to 0.87; P=0.006) after radioiodine treatment. We found no difference in summary estimates for the different antithyroid drugs or for whether antithyroid drugs were given before or after radioiodine treatment. CONCLUSIONS: Antithyroid drugs potentially increase rates of failure and reduce rates of hypothyroidism if they are given in the week before or after radioiodine treatment, respectively.
Mesh Headings (Keywords): Antithyroid Agents, Humans, Hyperthyroidism, Hypothyroidism, Iodine Radioisotopes, Randomized Controlled Trials as Topic, Risk Factors, Treatment Failure
Check for Full Text / PubMed Unique Identifier (PMID): 17309884
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