MSFinals-3319

A 9-year-old girl presents with her daughter, who is two weeks old and was diagnosed a few days following birth with an anterior tongue tie. She is still struggling to establish enough feeding due to poor latch and a poor seal, even though she is alternating between breastfeeding and bottle feeding of expressed milk. She has been reviewed by the health visitor twice who is satisfied with her breastfeeding technique. The baby was over the 50th centile at birth and now has dropped to the 25th centile.
Given the above, what is the next most appropriate step in the management of this child?