Mother-infant skin-to-skin contact after delivery results in early recognition of own mother's milk odour

Mizuno, Katsumi; Mizuno, Noriko; Shinohara, Tokuko; Noda, Mitsuhiko

doi:10.1080/08035250410023115

Cited by 19 publications

(6 citation statements)

References 20 publications

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“…Seven studies with 324 mother/infant pairs reported data on the duration of breastfeeding in days. Six of the seven studies (De Chateau 1977; Mizuno 2004; Shiau 1997; Sosa 1976b; Sosa 1976c; Svejda 1980) found a longer duration of breastfeeding in the SSC dyads (mean difference (MD) 42.55 days, 95% CI −1.69 to 86.79). However, overall, the difference between groups did not reach statistical significance.…”

Section: Resultsmentioning

confidence: 99%

“…Substantial differences were found between studies in the amount of separation that occurred in the control group. In eight studies (Chwo 1999; Hales 1977; Huang 2006; Mizuno 2004; Shiau 1997; Sosa 1976a; Sosa 1976b; Sosa 1976c), infants were removed from their mothers immediately postbirth and reunited 12 to 24 hours later. In five studies (Carlsson 1978; Craig 1982; Gouchon 2010; Svejda 1980; Thomson 1979), the mothers held their swaddled infants for about five minutes soon after birth and then were separated from their infants.…”

Section: Resultsmentioning

confidence: 99%

“…Although the Syfrett 1996 study was small (n = 8), the recruiter was naive to the minimization method of random assignment. In 12 studies (Carlsson 1978; Christensson 1992; Christensson 1995; Hales 1977; Kastner 2005; Khadivzadeh 2008; Mazurek 1999; Mizuno 2004; Svejda 1980; Thomson 1979; Vaidya 2005; Villalon 1993), the researchers indicated that women were randomly assigned to groups but no further information was provided about the randomization method. In eight studies (Bystrova 2003; Carfoot 2004; Craig 1982; Curry 1982; Nolan 2009; Sosa 1976a; Sosa 1976b; Sosa 1976c), sealed envelopes were used but the investigators do not state whether the envelopes were sequentially numbered, although Bystrova 2003 noted that the envelopes were opened consecutively.…”

Section: Resultsmentioning

confidence: 99%

“…Early SSC appears to have less of an effect on breastfeeding exclusivity or duration in studies where control infants are held swaddled by their mothers or placed swaddled or clothed on their mother’s naked chest and given the opportunity to breastfeed soon after birth than in studies where control infants are separated from their mothers for 12 to 24 hours immediately postbirth. Given the strong evidence of the negative impact of early mother-infant separation, it is noteworthy that in some hospitals usual care still includes this practice for healthy full term newborns (Mizuno 2004).…”

Section: Discussionmentioning

confidence: 99%

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Early skin-to-skin contact for mothers and their healthy newborn infants

Moore

Anderson

Bergman

et al. 2012

Cochrane Database of Systematic Reviews

738

833

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Background Mother-infant separation postbirth is common in Western culture. Early skin-to-skin contact (SSC) begins ideally at birth and involves placing the naked baby, head covered with a dry cap and a warm blanket across the back, prone on the mother’s bare chest. According to mammalian neuroscience, the intimate contact inherent in this place (habitat) evokes neurobehaviors ensuring fulfillment of basic biological needs. This time may represent a psychophysiologically ‘sensitive period’ for programming future physiology and behavior. Objectives To assess the effects of early SSC on breastfeeding, physiological adaptation, and behavior in healthy mother-newborn dyads. Search methods We searched the Cochrane Pregnancy and Childbirth Group’s Trials Register (30 November 2011), made personal contact with trialists, and consulted the bibliography on kangaroo mother care (KMC) maintained by Dr. Susan Ludington. Selection criteria Randomized controlled trials comparing early SSC with usual hospital care. Data collection and analysis We independently assessed trial quality and extracted data. Study authors were contacted for additional information. Main results Thirty-four randomized controlled trials were included involving 2177 participants (mother-infant dyads). Data from more than two trials were available for only eight outcome measures. For primary outcomes, we found a statistically significant positive effect of early SSC on breastfeeding at one to four months postbirth (13 trials; 702 participants) (risk ratio (RR) 1.27, 95% confidence interval (CI) 1.06 to 1.53, and SSC increased breastfeeding duration (seven trials; 324 participants) (mean difference (MD) 42.55 days, 95% CI −1.69 to 86.79) but the results did not quite reach statistical significance (P = 0.06). Late preterm infants had better cardio-respiratory stability with early SSC (one trial; 31 participants) (MD 2.88, 95% CI 0.53 to 5.23). Blood glucose 75 to 90 minutes following the birth was significantly higher in SSC infants (two trials, 94 infants) (MD 10.56 mg/dL, 95% CI 8.40 to 12.72). The overall methodological quality of trials was mixed, and there was high heterogeneity for some outcomes. Authors’ conclusions Limitations included methodological quality, variations in intervention implementation, and outcomes. The intervention appears to benefit breastfeeding outcomes, and cardio-respiratory stability and decrease infant crying, and has no apparent short- or long-term negative effects. Further investigation is recommended. To facilitate meta-analysis, future research should be done using outcome measures consistent with those in the studies included here. Published reports should clearly indicate if the intervention was SSC with time of initiation and duration and include means, standard deviations and exact probability values.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Early skin-to-skin contact for mothers and their healthy newborn infants

Moore

Anderson

Bergman

et al. 2012

Cochrane Database of Systematic Reviews

738

833

View full text Add to dashboard Cite

show abstract

“…Human newborns are responsive to their environments by modifying the movements of their mouths: they alter their suckling patterns for sweet solutions [1], and they respond to the odor of their mother’s breast milk by making mouthing movements [2]. Newborns also use their mouths to interact with visual stimuli: Meltzoff and Moore [3–4] found that within minutes after birth, infants respond to facial gestures with matching facial gestures.…”

Section: Introductionmentioning

confidence: 99%

Testing the arousal hypothesis of neonatal imitation in infant rhesus macaques

2017

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Neonatal imitation is the matching of (often facial) gestures by newborn infants. Some studies suggest that performance of facial gestures is due to general arousal, which may produce false positives on neonatal imitation assessments. Here we examine whether arousal is linked to facial gesturing in newborn infant rhesus macaques (Macaca mulatta). We tested 163 infants in a neonatal imitation paradigm in their first postnatal week and analyzed their lipsmacking gestures (a rapid opening and closing of the mouth), tongue protrusion gestures, and yawn responses (a measure of arousal). Arousal increased during dynamic stimulus presentation compared to the static baseline across all conditions, and arousal was higher in the facial gestures conditions than the nonsocial control condition. However, even after controlling for arousal, we found a condition-specific increase in facial gestures in infants who matched lipsmacking and tongue protrusion gestures. Thus, we found no support for the arousal hypothesis. Consistent with reports in human newborns, imitators’ propensity to match facial gestures is based on abilities that go beyond mere arousal. We discuss optimal testing conditions to minimize potentially confounding effects of arousal on measurements of neonatal imitation.

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