Abstract
Background
There is a lack of sufficient evidence regarding efficacy and safety of amlodipine on treating hypertension during pregnancy.
Objective
To compare antihypertensive efficacy, pregnancy outcome and safety of amlodipine with nifedipine on hypertension during pregnancy.
Methods
A systematic search of PubMed, Embase, Cochrane Library, clinicaltrials.gov, Chinese National Knowledge Infrastructure, Wanfang Database and China Biology Medicine disc of randomized controlled trials (RCTs) up to April l5, 2021 was conducted on RCTs comparing amlodipine to nifedipine for the treatment of hypertension during pregnancy. Screening, data extraction, and quality assessment were done by two independent reviewers. To estimate relative effects from all available evidence, a meta-analysis was conducted.
Results
Seventeen RCTs were included. Amlodipine was found the efficacy is slightly superior to nifedipine on treating hypertension during pregnancy (RR 1.06, 95% CI 1.01 to 1.10) with a decreased risk for maternal side effects (RR 0.42, 95% CI 0.29 to 0.61). Subgroup analysis found amlodipine can get a better control on SBP (RR − 11.68, 95% CI − 17.98 to − 5.37) and DBP (RR − 7.44, 95% CI − 13.81 to − 1.06) compared with intermediate-/long-acting nifedipine. In addition, there was no difference between amlodipine and nifedipine on pregnancy outcomes including caesarean section, premature labour, placental abruption, FGR, fetal distress, neonatal asphyxia.
Conclusions
Given the results of this systematic review and meta-analysis, amlodipine can be effectively and safely used for hypertension during pregnancy.
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Funding
This study was supported by Guangdong Medical Science and Technology Research Foundation (A2020161).
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YJ, QS wrote the protocol. YJ performed the search. YJ and QS independently selected eligible studies and extracted data. Differences of opinion were registered and resolved by consensus with DP, SS. YJ and QS performed the meta-analyses. YJ, MZ, DP, SS, QS participated in the interpretation of the data and writing of the review.
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Ethical approval was not needed for this meta-analysis.
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Yin, J., Mei, Z., Shi, S. et al. Nifedipine or amlodipine? The choice for hypertension during pregnancy: a systematic review and meta-analysis. Arch Gynecol Obstet 306, 1891–1900 (2022). https://doi.org/10.1007/s00404-022-06504-5
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DOI: https://doi.org/10.1007/s00404-022-06504-5