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Lingual Frenotomy in Breastfeeding Infants: An Umbrella Review
Bruno Valério da Silva1, Amanda Vieira Barollo1, Normanda da Nóbrega Lima Sá2
1Federal University of Espírito Santo, Vitória, Brazil.
Background:
Clinical diagnosis of ankyloglossia and its therapeutic management through lingual frenotomy (LF) have increased in several countries. However, systematic reviews (SRs) and experts opinions show conflicting results on this topic.
Aim:
To synthesize the available knowledge with a critical evaluation of SRs on LF in infants up to 1 year of age on breastfeeding-related outcomes.
Design:
An umbrella review was carried out. Searches were conducted (seven electronic databases, gray literature). SRs of clinical trials involving infants up to 1 year of age undergoing LF to treat maternal self-efficacy related to breastfeeding, nipple pain, and/or weight gain were included. The articles were critically analyzed (AMSTAR 2).
Results:
We identified 272 studies; 15 SRs were included. Confidence was classified as critically low (n = 14; 93.3%) and moderate (n = 1; 6.7%). Fourteen SRs had more than two critical aspects, indicating that the studies were not conducted properly.
Conclusion:
The evidence on the efficacy of LF in infants remains inconclusive in relation to breastfeeding outcomes, especially maternal self-efficacy related to breastfeeding and weight gain. Evidence of benefit for the treatment of breast pain is weak. Overdiagnosis of ankyloglossia may lead to overtreatment of the condition, without high-quality evidence to support the benefits of this procedure.
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