Quantitative Impact of Frenotomy on Breastfeeding: A Systematic Review and Meta-analysis

Holly Cordray, Nikhila Raol*, Geethanieli Mahendran, Ching Siong Tey, John Nemeth, Alastair Sutcliffe, Jenny Ingram, William Sharp

*Corresponding author for this work

Research output: Contribution to journalReview article (Academic Journal)peer-review

1 Citation (Scopus)
319 Downloads (Pure)

Abstract

Background
Symptoms related to infant ankyloglossia/tongue-tie may deter mothers from breastfeeding, yet frenotomy is controversial.

Methods
Databases included PubMed, Embase, CINAHL, PsycINFO, Web of Science, and Google Scholar from 1961-2023. Controlled trials and cohort studies with validated measures of surgical efficacy for breastfeeding outcomes were eligible. Meta-analyses synthesized data with inverse-variance weighting to determine standardized mean differences (SMD) between pre-/postoperative scores.

Results
Twenty-one of 1568 screened studies were included. Breastfeeding self-efficacy improved significantly post-frenotomy: medium effect after 5–10 days (SMD 0.60 [95% CI: 0.48, 0.71; P < 0.001]), large effect after 1 month (SMD 0.91 [CI: 0.79, 1.04; P < 0.001]). Nipple pain decreased significantly post-frenotomy: large effect after 5–15 days (SMD −1.10 [CI: −1.49, −0.70; P < 0.001]) and 1 month (SMD −1.23 [CI: −1.79, −0.67; P = 0.002]). Frenotomy had a medium effect on infant gastroesophageal reflux severity at 1-week follow-up (SMD −0.63 [CI: −0.95, −0.31; P = 0.008]), with continued improvement at 1 month (SMD −0.41 [CI: −0.78, −0.05; P = 0.04]). From LATCH scores, breastfeeding quality improved after 5–7 days by a large SMD of 1.28 (CI: 0.56, 2.00; P = 0.01).

Conclusions
Providers should offer frenotomy to improve outcomes in dyads with ankyloglossia-associated breastfeeding difficulties.

Protocol registration
PROSPERO identifier CRD42022303838.
Original languageEnglish
Pages (from-to)34-42
Number of pages9
JournalPediatric Research
Volume95
Early online date22 Aug 2023
DOIs
Publication statusPublished - 1 Jan 2024

Bibliographical note

Funding Information:
This work benefitted from a science infrastructure grant provided by the Marcus Foundation.

Publisher Copyright:
© 2023, The Author(s), under exclusive licence to the International Pediatric Research Foundation, Inc.

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