• Xingxing Xie, Xiaodong Fan, Ling Fan, Xue Liu, Yang Zheng, and Zhigang Yu.
• Department of Pharmacy, Yaan People's Hospital, Yaan, China.
• Medicine (Baltimore). 2024 Nov 8; 103 (45): e40495e40495.

BackgroundThe combination of methimazole and propranolol is considered an effective treatment regimen for hyperthyroidism in clinical practice; however, detrimental effects on the heart rate, bone metabolism and thyroid hormone levels have been reported. Therefore, the present study aimed to systematically review the efficacy and safety differences in patients with hyperthyroidism and the effects of treatment on heart rate, bone metabolism, cortisol, and adrenocorticotropic hormone levels using case-control studies.MethodsClinical case-control trials of methimazole combined with propranolol for the treatment of hyperthyroidism were selected from Chinese and English databases, and data were collected from the establishment of the database until August 2024. Two independent researchers evaluated the quality of the literature using the Newcastle-Ottawa Scale (NOS). Meta-analysis of each effect index was performed using RevMan software (version 5.3), and the quality of the results was evaluated using the GRADE profiler system letter description method.ResultsSixteen clinical case-control trials were included in this study. Of these, 2 trials exhibited NOS scores of 7, 6 trials exhibited NOS scores of 6, and 8 trials exhibited NOS scores of 5. These accounted for 12.5% of the high-quality literatures, and included 772 patients treated with methimazole combined with propranolol (observation group) and 771 patients treated with methimazole alone (control group). The results of the meta-analysis demonstrated that methimazole combined with propranolol improved the cure rate, the total effective rate, and heart rate, compared with the control group (P < .05). In addition, calcification, bone glutamate protein, free triiodothyronine, free tetraiodothyronine, thyroid-stimulating hormone, cortisol, and adrenocorticotropic hormone were significantly different between the 2 groups (P < .05). There were no significant differences in leukemia, headache, dizziness, skin pruritus, bone pain, arthralgia, or in improving parathyroid hormone or reducing gastrointestinal reactions between the 2 groups.ConclusionThe present study demonstrated that methimazole combined with propranolol may significantly improve the heart rate, bone metabolism and associated hormone levels in patients with hyperthyroidism, without significantly increasing the risk of adverse reactions. However, due to the impact of primary literature type, quality or research methods high-quality, multicenter, rigorously designed clinical trials are required for further verification.Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.

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