Abstract
To evaluate the global prevalence of malnutrition in children with congenital heart disease (CHD). A systematic review and meta-analysis were performed. Web of Science, PubMed, Embase, Wanfang Database, China National Knowledge Infrastructure, and China Biology Medicine disc databases were searched for studies published through April 2021. Random-effect model meta-analyses were performed to derive the pooled the prevalence of preoperative underweight, stunting, and wasting in children with CHD. Time-trend analyses of postoperative malnutrition prevalence were undertaken. Subgroup and sensitivity analyses were conducted to explore sources of heterogeneity. Egger test and funnel plots were used to explore public bias. A total of 39 studies were included in this meta-analysis. The pooled estimates of preoperative malnutrition in children with CHD were 27.4% (95% CI, 21.7-34.0) for underweight, 24.4% (95% CI, 19.5-30.0) for stunting, and 24.8% (95% CI, 19.3-31.3) for wasting. Catch-up growth was found in the postoperative period among some children. Different continents were identified as heterogeneity moderators by subgroup analyses. Children with CHD have a high prevalence of preoperative malnutrition and some show catch-up growth postoperatively. These data can be used as benchmarks in efforts to improve the nutritional status of children with CHD.
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