Exposure to the smell and taste of milk to accelerate feeding in preterm infants.

Show simple item record

dc.contributor.author Muelbert, Mariana en
dc.contributor.author Lin, Luling en
dc.contributor.author Bloomfield, Francis en
dc.contributor.author Harding, Jane en
dc.date.accessioned 2019-09-12T22:19:49Z en
dc.date.accessioned 2019-09-15T05:19:23Z en
dc.date.issued 2019-07-16 en
dc.identifier.citation Cochrane database of systematic reviews 7:CD013038 16 Jul 2019 en
dc.identifier.issn 1469-493X en
dc.identifier.uri http://hdl.handle.net/2292/47679 en
dc.description.abstract BACKGROUND:Preterm infants are often unable to co-ordinate sucking, swallowing and breathing for oral feeding because of their immaturity; in such cases, initial nutrition is provided by orogastric or nasogastric tube feeding. Feed intolerance is common and can delay attainment of full enteral feeds and sucking feeds, which prolongs the need for intravenous nutrition and hospital stay. Smell and taste play an important role in the activation of physiological pre-absorptive processes that contribute to food digestion and absorption. However, during tube feedings, milk bypasses the nasal and oral cavities, which limits exposure to the smell and taste of milk. Provision of the smell and taste of milk with tube feedings is non-invasive and inexpensive; and if it does accelerate the transition to enteral feeds, and then to sucking feeds, it would be of considerable potential benefit to infants, their families, and the healthcare system. OBJECTIVES:To assess whether exposure to the smell or taste (or both) of milk administered with tube feedings can accelerate progress to full sucking feeds without adverse effects in preterm infants. SEARCH METHODS:We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL 2018, Issue 5), MEDLINE via PubMed (1966 to 1 June 2018), Embase (1980 to 1 June 2018), and CINAHL (1982 to 1 June 2018). We also searched clinical trials databases, conference proceedings, and the reference lists of retrieved articles for randomised and quasi-randomised trials. SELECTION CRITERIA:We included randomised and quasi-randomised studies that compared the provision of the smell or taste of milk (or both) immediately before or at the time of tube feedings, with no provision of smell or taste. DATA COLLECTION AND ANALYSIS:Two review authors independently abstracted data according to Cochrane Neonatal methodology; they also assessed risk of bias, and the quality of evidence at the outcome level using the GRADE approach. We performed meta-analyses using risk ratio (RR) for dichotomous data and mean difference (MD) for continuous data, with their respective 95% confidence intervals (CIs). MAIN RESULTS:Three trials involving a total of 161 preterm infants were included in this review, but only two trials (131 infants) contributed data for meta-analysis. There was no evidence of a clear effect of exposure to the smell and taste of milk with tube feedings on time taken to reach full sucking feeds (MD -2.57 days, 95% CI -5.15 to 0.02; I2 = 17%; 2 trials, 131 infants; very low-quality evidence). One trial reported no adverse effects. There was no evidence of a clear effect of exposure to the smell and taste of milk on the following outcomes: time taken to reach full enteral feeds (MD -1.57 days, 95% CI -6.25 to 3.11; 1 trial, 51 infants; very low-quality evidence), duration of parenteral nutrition (MD -2.20 days, 95% CI -9.49 to 5.09; 1 trial, 51 infants; very low-quality evidence), incidence of necrotising enterocolitis (RR 0.62, 95% CI 0.15 to 2.48; 1 trial, 51 infants; low-quality evidence), and late infection (RR 2.46, 95% CI 0.27 to 22.13; 1 trial, 51 infants; low-quality evidence). There was very low-quality evidence demonstrating that exposure to the smell and taste of milk decreased duration of hospitalisation by almost four days (MD -3.89 days, 95% CI -7.03 to -0.75; I2 = 51%; 2 trials, 131 infants). In two trials, an increased growth velocity was noted in infants exposed to the intervention, but we were unable to combine data to perform meta-analysis. No data were available to assess feed intolerance and rates of exclusive breastfeeding at discharge. Included trials were small and had methodological limitations including lack of randomisation (one trial), lack of blinding, and different inclusion criteria and administration of the interventions. AUTHORS' CONCLUSIONS:Evidence from two trials suggests that exposure to the smell and taste of milk with tube feedings has no clear effect on time taken to reach full sucking feeds, but it may decrease length of hospitalisation. However, these results are uncertain due to the very low quality of the evidence. There is also limited evidence about the impact on other important clinical outcomes and on safety. Future research should examine the effect of exposure to the smell and taste of milk with tube feedings on clinical outcomes during hospitalisation, such as attainment of full enteral and sucking feeds, safety, feed tolerance, incidence of infection, and infant growth. Additionally, future research should be sufficiently powered to evaluate the effect of the intervention in infants of different gestational ages, on each sex separately, and on the optimal frequency and duration of exposure. en
dc.format.medium Electronic en
dc.language eng en
dc.relation.ispartofseries The Cochrane database of systematic reviews en
dc.relation.replaces http://hdl.handle.net/2292/47659 en
dc.relation.replaces 2292/47659 en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://documentation.cochrane.org/display/EPPR/Standard+%7C+Cochrane+Review en
dc.subject Humans en
dc.subject Weight Gain en
dc.subject Intubation, Gastrointestinal en
dc.subject Sucking Behavior en
dc.subject Smell en
dc.subject Taste en
dc.subject Infant, Newborn en
dc.subject Infant, Premature en
dc.subject Randomized Controlled Trials as Topic en
dc.subject Infant Nutritional Physiological Phenomena en
dc.title Exposure to the smell and taste of milk to accelerate feeding in preterm infants. en
dc.type Journal Article en
dc.identifier.doi 10.1002/14651858.cd013038.pub2 en
pubs.begin-page CD013038 en
pubs.volume 7 en
dc.rights.holder Copyright: The Cochrane Collaboration en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Research Support, Non-U.S. Gov't en
pubs.subtype Systematic Review en
pubs.subtype systematic-review en
pubs.subtype Journal Article en
pubs.elements-id 778000 en
pubs.org-id Liggins Institute en
pubs.org-id LiFePATH en
pubs.org-id Medical and Health Sciences en
pubs.org-id Nursing en
dc.identifier.eissn 1469-493X en
pubs.record-created-at-source-date 2019-07-17 en
pubs.dimensions-id 31311064 en

Files in this item

Find Full text

This item appears in the following Collection(s)

Show simple item record


Search ResearchSpace