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BMC Pediatrics
Published in: BMC Pediatrics 1/2018

Open Access 01-12-2018 | Research article

Sucking behaviour using feeding teats with and without an anticolic system: a randomized controlled clinical trial

Authors: Marina Kreitschmann, Lea C. Epping, Ariane Hohoff, Cristina Sauerland, Thomas Stamm

Published in: BMC Pediatrics | Issue 1/2018

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Abstract

Background

This study aimed to investigate differences in sucking behavior of infants bottle-fed with vented (so-called anticolic) teats (VTs) and nonvented teats (NVTs).

Methods

Trial design: Prospective, randomized clinical trial. Ninety-six term, healthy infants (aged 1–8 months) were assessed for eligibility. Seventy-three infants remained for intention-to-treat (ITT) and 65 infants (vented group: n = 31; nonvented group: n = 34) for the per-protocol (PP) analysis. During bottle-feeding, sucks/min, pauses/min, amount of formula intake (mL), feeding time (min), heart rate (bpm), respiratory rate (bpm), and oxygen saturation (%) were recorded. In addition, a parental survey was carried out to reveal possible symptoms of infantile colic. Sample-size calculation and confirmatory and exploratory analyses were performed using the Mann-Whitney U test and Fisher’s exact test.

Results

Except for the parameter sucking pauses per minute (NVTs > VTs, p = .03), no differences between groups were found with the ITT and PP analysis. After excluding infants with a disproportionately complementary diet (subgroup analysis, infants aged 1–6 months, n = 54) the primary outcome (sucks per minute) showed significant differences (NVTs > VTs, p = .01). The amount of formula intake, feeding time, and cardiorespiratory parameters were similar in both groups. The parental survey did not show any relation between types of feeding teats and possible symptoms of infantile colic.

Conclusions

Compared with an NVT group, infants aged 1–6 months need fewer sucks and pauses when fed with VTs. In both groups, equal amounts of feeding medium and feeding time were observed. With NVT feeding, disruption occurs when the bottle vacuum is released by air from the oral cavity. Therefore, higher sucking frequency is needed to rebuild the oral vacuum for bottle milk flow, which implies higher risk of aerophagia. Overall, we suggest that the VTs provided a more coordinated drinking pattern than did the NVTs, which may have a positive effect on gastric distress.

Trial registration

Trial Registration: DRKS-Trial Registration No. DRKS00004885. Registered April 16, 2013. Universal Trial No. U1111–1141-5857.
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Metadata
Title
Sucking behaviour using feeding teats with and without an anticolic system: a randomized controlled clinical trial
Authors
Marina Kreitschmann
Lea C. Epping
Ariane Hohoff
Cristina Sauerland
Thomas Stamm
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Pediatrics / Issue 1/2018
Electronic ISSN: 1471-2431
DOI
https://doi.org/10.1186/s12887-018-1092-0

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