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Ultrasound Imaging of Infant Sucking Dynamics during the Establishment of Lactation.
MedLine Citation:
PMID:  22965645     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Background: Infant sucking problems are frequently implicated in early weaning during breastfeeding, yet our understanding of early sucking dynamics is limited.Objective: This study aimed to describe infant sucking patterns during breastfeeding at secretory activation and determine whether they changed by the time of established lactation.Methods: Sucking patterns and milk intake of 15 breastfeeding infants were assessed on day 3.2 ± 0.8 and later at follow-up, 16.0 (11.3-22.8) days postpartum. Nipple diameters, tongue movement, nipple position, and suck rate during nutritive sucking (NS) and non-nutritive sucking (NNS) were measured from ultrasound scans of the intra-oral cavity during breastfeeding. Milk intake and LATCH scores were also recorded.Results: As the tongue lowered during a suck cycle, the nipple increased in size (P < .001), milk flowed into the intra-oral space and the nipple moved closer to the hard-soft palate junction (P < .001). During NS, nipple diameters and the mid-tongue movement were greater than during NNS (P < .001). As the infant aged, the mid-tongue lowered further (P = .002), suck rates became faster (P < .001) and milk intake increased (P = .004), however, no differences were seen for LATCH scores (P = .34).Conclusions: Differences in tongue movement between NS and NNS suggest that there is an altered sucking action when milk flow is absent. Similar sucking patterns at day 3 and during established lactation imply that infants have a mature sucking pattern in the early postpartum period.
Authors:
Vanessa S Sakalidis; Tracey M Williams; Catherine P Garbin; Anna R Hepworth; Peter E Hartmann; Michael J Paech; Donna T Geddes
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-10
Journal Detail:
Title:  Journal of human lactation : official journal of International Lactation Consultant Association     Volume:  -     ISSN:  1552-5732     ISO Abbreviation:  J Hum Lact     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8709498     Medline TA:  J Hum Lact     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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