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Evaluation of Preeclampsia Results after Use of Metformin in Gestation: Systematic Review and Meta-analysis

Iramar Baptistella do Nascimento, Guilherme Dienstmann, Matheus Leite Ramos de Souza, Raquel Fleig, Carla Beatriz Pimentel Cesar Hoffmann, Jean Carl Silva

Figshare, 2019

824 participants

Abstract

Abstract Objective Does the use of metformin have an influence on the outcomes of preeclampsia (PE)? Sources of Data The descriptors pregnancy, metformin, treatment, and preeclampsia associated with the Boolean operators AND and OR were found in the MEDLINE, LILACS, Embase and Cochrane databases. A flowchart with exclusion criteria and inclusion strategy using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol, and eligibility criteria was used. Data were extracted regarding the type of study, the applied dosage, treatment time, segment, bias risks, and the Patient, Intervention, Comparison and Outcome (PICO) strategy to identify the quality of the study. Selection of Studies Total number of journals in the initial search (n= 824); exclusions from repeated articles on different search engines (n= 253); exclusions after reading the titles, when the title had no correlations with the proposed theme (n= 164); exclusions due to incompatibility with the criteria established in the methodological analysis (n= 185), exclusion of articles with lower correlation with the objective of the present study (n= 187); and final bibliographic selection (n= 35). Data Collection At first, a systematic review of the literature was performed. Subsequently, from the main selection, randomized and non-randomized trials with metformin that presented their results in absolute and relative numbers of PE outcomes were selected. The variables were treated…

How strong is the evidence?

Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 824 participants or records.

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