The effect of frenotomy on long-term breastfeeding in infants with ankyloglossia

The World Health Organization has issued guidelines suggesting exclusive breastfeeding for at least six months for all infants. However, one of the main factors interfering with successful breastfeeding is ankyloglossia. Frenotomy may help improve breastfeeding, but evidence on the long-term effects on breastfeeding is lacking. Therefore, this study was conducted to evaluate the effect of frenotomy on breastfeeding and identify factors associated with receiving exclusive breastfeeding for six months.

This was a cross-sectional descriptive study conducted using retrospective chart review. Infants diagnosed with anterior ankyloglossia who underwent frenotomy at HRH Princess Maha Chakri Sirindhorn Medical Center between April 1, 2013 and March 31, 2019 were included. Data on both the mothers and the infants were collected. The length and types of feeding at 2, 4, 6, and 12 months were recorded.

In total, 526 infants were included in the study; 322 (61.22%) were male. Their median age on the day of surgery was 2 days (minimum 1 day, maximum 30 days). In total, 7.03% did not receive breastfeeding, whereas 17.96% and 75.01% had received breastfeeding for fewer than and more than six months, respectively. The prevalence of infants exclusively breastfed decreased over time from 81.37% to 55.70%, 33.46%, and 4.38% at 2, 4, 6, and 12 months, respectively. The study did not show any independent factors of neonatal and maternal characteristics associated with being exclusively breastfed for six months.

Among infants with anterior ankyloglossia who received frenotomy, 33.46% were exclusively breastfed for six months. The study did not show any independent factors of neonatal and maternal characteristics associated with being exclusively breastfed for six months.