Randomized trial of breastfeeding support in very low-birth-weight infants

Neonatal Intensive Care Unit Interventions to Improve Breastfeeding Rates at Discharge Among Preterm and Low Birth Weight Infants: A Systematic Review and Meta-Analysis

Background: While breast milk is widely accepted as the best source of nutrients for almost all newborns, breastfeeding can be especially challenging for preterm and low birth weight (LBW) infants. With increased risk of admission to neonatal intensive care units (NICUs) and separation from parents, this population experiences significant barriers to successful breastfeeding. Thus, it is crucial to identify interventions that can optimize breastfeeding for preterm and LBW infants that is continued from birth and admission, through to hospital discharge and beyond. Objectives: To identify and analyze evidence-based interventions that promote any and exclusive breastfeeding among preterm and LBW neonates at discharge and/or postdischarge from hospital. Methods: A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) checklist. Searches were performed in the following databases: MEDLINE Ovid, EMBASE, Web of Science, and Cumulative Index to Nursing and Allied Health (CINAHL). Results: From the 42 studies included, 6 groups of intervention types were identified: educational and breastfeeding support programs, early discharge, oral stimulation, artificial teats and cups, kangaroo mother care (KMC), and supportive policies within NICUs. All groupings of interventions were associated with significantly increased rates of any breastfeeding at discharge. All types of interventions except artificial teats/cups and oral stimulation showed statistically significant increases in exclusive breastfeeding at discharge. KMC demonstrated the highest increased odds of breastfeeding at discharge among preterm and LBW infants. Conclusions: A variety of effective interventions exist to promote breastfeeding among hospitalized preterm and LBW infants. Hospital settings hold unique opportunities for successful breastfeeding promotion. PROSPERO registration: CRD42021252610.

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended that infants be breastfed exclusively until six months of age, with breastfeeding continuing as an important part of the infant's diet until at least two years of age. However, current breastfeeding rates in many countries do not reflect this recommendation.

OBJECTIVES

1. To describe types of breastfeeding support for healthy breastfeeding mothers with healthy term babies. 2. To examine the effectiveness of different types of breastfeeding support interventions in terms of whether they offered only breastfeeding support or breastfeeding support in combination with a wider maternal and child health intervention ('breastfeeding plus' support).  3. To examine the effectiveness of the following intervention characteristics on breastfeeding support:      a. type of support (e.g. face-to-face, telephone, digital technologies, group or individual support, proactive or reactive);      b. intensity of support (i.e. number of postnatal contacts);      c. person delivering the intervention (e.g. healthcare professional, lay person);     d. to examine whether the impact of support varied between high- and low-and middle-income countries.

SEARCH METHODS

We searched Cochrane Pregnancy and Childbirth's Trials Register (which includes results of searches of CENTRAL, MEDLINE, Embase, CINAHL, ClinicalTrials.gov, WHO International Clinical Trials Registry Platform (ICTRP)) (11 May 2021) and reference lists of retrieved studies.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care. Support could be provided face-to-face, over the phone or via digital technologies. All studies had to meet the trustworthiness criteria.  DATA COLLECTION AND ANALYSIS: We used standard Cochrane Pregnancy and Childbirth methods. Two review authors independently selected trials, extracted data, and assessed risk of bias and study trustworthiness.  The certainty of the evidence was assessed using the GRADE approach.

MAIN RESULTS

This updated review includes 116 trials of which 103 contribute data to the analyses. In total more than 98,816 mother-infant pairs were included.  Moderate-certainty evidence indicated that 'breastfeeding only' support probably reduced the number of women stopping breastfeeding for all primary outcomes: stopping any breastfeeding at six months (Risk Ratio (RR) 0.93, 95% Confidence Interval (CI) 0.89 to 0.97); stopping exclusive breastfeeding at six months (RR 0.90, 95% CI 0.88 to 0.93); stopping any breastfeeding at 4-6 weeks (RR 0.88, 95% CI 0.79 to 0.97); and stopping exclusive breastfeeding at 4-6 (RR 0.83 95% CI 0.76 to 0.90). Similar findings were reported for the secondary breastfeeding outcomes except for any breastfeeding at two months and 12 months when the evidence was uncertain if 'breastfeeding only' support helped reduce the number of women stopping breastfeeding.  The evidence for 'breastfeeding plus' was less consistent. For primary outcomes there was some evidence that 'breastfeeding plus' support probably reduced the number of women stopping any breastfeeding (RR 0.94, 95% CI 0.91 to 0.97, moderate-certainty evidence) or exclusive breastfeeding at six months (RR 0.79, 95% CI 0.70 to 0.90).  'Breastfeeding plus' interventions may have a beneficial effect on reducing the number of women stopping exclusive breastfeeding at 4-6 weeks, but the evidence is very uncertain (RR 0.73, 95% CI 0.57 to 0.95). The evidence suggests that 'breastfeeding plus' support probably results in little to no difference in the number of women stopping any breastfeeding at 4-6 weeks (RR 0.94, 95% CI 0.82 to 1.08, moderate-certainty evidence). For the secondary outcomes, it was uncertain if 'breastfeeding plus' support helped reduce the number of women stopping any or exclusive breastfeeding at any time points.  There were no consistent findings emerging from the narrative synthesis of the non-breastfeeding outcomes (maternal satisfaction with care, maternal satisfaction with feeding method, infant morbidity, and maternal mental health), except for a possible reduction of diarrhoea in intervention infants.  We considered the overall risk of bias of trials included in the review was mixed. Blinding of participants and personnel is not feasible in such interventions and as studies utilised self-report breastfeeding data, there is also a risk of bias in outcome assessment.   We conducted meta-regression to explore substantial heterogeneity for the primary outcomes using the following categories: person providing care; mode of delivery; intensity of support; and income status of country.  It is possible that moderate levels (defined as 4-8 visits) of 'breastfeeding only' support may be associated with a more beneficial effect on exclusive breastfeeding at 4-6 weeks and six months. 'Breastfeeding only' support may also be more effective in reducing women in low- and middle-income countries (LMICs) stopping exclusive breastfeeding at six months compared to women in high-income countries (HICs). However, no other differential effects were found and thus heterogeneity remains largely unexplained. The meta-regression suggested that there were no differential effects regarding person providing support or mode of delivery, however, power was limited.  AUTHORS' CONCLUSIONS: When 'breastfeeding only' support is offered to women, the duration and in particular, the exclusivity of breastfeeding is likely to be increased. Support may also be more effective in reducing the number of women stopping breastfeeding at three to four months compared to later time points.  For 'breastfeeding plus' interventions the evidence is less certain. Support may be offered either by professional or lay/peer supporters, or a combination of both. Support can also be offered face-to-face, via telephone or digital technologies, or a combination and may be more effective when delivered on a schedule of four to eight visits. Further work is needed to identify components of the effective interventions and to deliver interventions on a larger scale.

Neonatal Intensive Care Unit-Specific Lactation Support and Mother's Own Breast Milk Availability for Very Low Birth-Weight Infants

BACKGROUND

Mother's own milk (MOM) is the preferred nutrition for premature infants, particularly for the very low birth-weight (VLBW) cohort. Benefits are well documented; yet, numerous barriers exist for provision of MOM in the neonatal intensive care unit (NICU). Lactation consultants (LCs) can optimize breastfeeding support for NICU mothers; however, understanding of the impact of NICU-dedicated LCs is limited.

PURPOSE

Evaluate the effectiveness of NICU-dedicated LCs in improving breastfeeding outcomes and MOM provision in VLBW infants.

METHODS

A retrospective chart review of 167 VLBW infants comparing breastfeeding outcomes between 2 NICUs, one with NICU-dedicated LCs (hospital A; n = 48) and one without (hospital B; n = 119). Primary outcome measures included feeding percentages of MOM received by infants at 3 intervals, throughout hospitalization, and number of direct breastfeeding events. Secondary outcome measures included number of days to first enteral feed, days to reach full feeds, days of nil per os, days on total parenteral nutrition, and length of stay.

FINDINGS

Neonatal intensive care unit-specific lactation support increased the number of direct breastfeeding events on day of discharge (P = .048). No statistical significance was found at each of the 3 time intervals, or throughout hospitalization (week 1: P = .18; midpoint: P = .40; discharge: P = .16; total hospitalization: P = .19). No statistical significance was demonstrated in secondary outcome measures (days to first enteral feed: P = .22; days to full feeds: P = .25; nil per os days: P = .27; total parenteral nutrition days: P = .34; length of stay: P = .01). Length of stay not found to be significant after correcting for confounding variables.

IMPLICATION FOR PRACTICE

Increased direct breastfeeding events on day of discharge with exposure to NICU-dedicated LCs in the VLBW population.

IMPLICATION FOR RESEARCH

Prospective studies regarding NICU-specific lactation support with larger samples are warranted.

What Is the Impact of NICU-Dedicated Lactation Consultants? An Evidence-Based Practice Brief

BACKGROUND

Benefits of exclusive human milk diets for preterm and low birth-weight infants are well established. Despite known benefits, supporting mothers in the provision of mother's own milk for high-risk infants is challenging. Lactation support in the neonatal intensive care unit (NICU) is highly variable. Lactations consultants (LCs) are often shared between postpartum units and the NICU, potentially increasing LC workload with less time spent with high-risk mothers. Furthermore, less than half of NICUs in the United States staff an international board-certified lactation consultant. Limited understanding exists regarding impacts of NICU-specific lactation support on breastfeeding outcomes.

PURPOSE

The purpose of this evidence-based practice brief is to synthesize the literature on the impact of NICU-specific lactation support, LCs who work exclusively in the NICU, and provide guidance about how NICU staffing with LCs solely focused on supporting mothers of high-risk infants impacts breastfeeding outcomes for low birth-weight infants.

SEARCH STRATEGY

CINAHL PLUS, PubMed, Cochrane Library, and OVID databases were searched using key words and restricted to English language.

FINDINGS

During hospitalization, NICUs staffed with dedicated board-certified LCs have increased potential to yield improved breastfeeding rates through hospital discharge, increased proportion of infants who receive mother's own milk, and increased duration of breastfeeding or human milk expression through hospital discharge.

IMPLICATIONS FOR PRACTICE

Human milk nutrition is related to improved outcomes for high-risk infants. Neonatal intensive care unit-specific lactation support can potentially optimize maternal breastfeeding practices and improve outcomes for high-risk infants.

IMPLICATIONS FOR RESEARCH

There is a need for further studies pertaining to NICU-specific lactation consultants and influences on breastfeeding outcomes.

What evidence-based strategies have been shown to improve breastfeeding rates in preterm infants?

Breast milk is the preferred form of nutrition for all infants and has been shown to reduce morbidity and improve health outcomes in preterm infants. However, mothers of preterm infants face many challenges initiating and sustaining breastfeeding within the neonatal unit. This scoping review examines evidence-based practices which aim to improve breastfeeding rates in preterm infants at the time of hospital discharge. A literature review identified 17 articles which are included in this review. Supporting evidence was found for the implementation of kangaroo mother care and/or skin-to-skin care, peer counsellors, provision of oropharyngeal colostrum in early infancy and use of donor human milk banks. However, overall it is apparent that high quality research including systematic review and data synthesis in the form of meta-analysis is required in this area to reach sound conclusions regarding recommendations of different interventions. This scoping review provides an important foundation for further research into this area.

Predictors of breastfeeding non-initiation in the NICU

This study compared predictors of breastfeeding non-initiation between infants who were and were not admitted to the NICU so that interventions can target high-risk mothers whose infants desperately need breastmilk. This was a population-based retrospective cohort study of singleton Ohio live births using birth certificates, 2006-2015. In babies who were and were not admitted to the NICU, a multivariable logistic regression model assessed the association between breastfeeding non-initiation and predictors relating to the mother, neonate, and labour and delivery events while adjusting for covariables. Of 1,463,506 births, 76,855 infants were admitted to the NICU (5.8% of study population), and breastfeeding was not initiated in 39.4% of them, compared with 31.5% of infants in the newborn nursery, p < 0.001. Apart from abnormal newborn conditions, smoking during pregnancy was the most significant risk factor for not breastfeeding in the NICU (RR 1.91 [95% CI 1.82-2.02]) and newborn nursery (RR 2.10 [95% CI 2.08-2.13]), followed by socioeconomic factors and multiparity. Limited prenatal visits (≤5) were a significantly higher risk factor in the NICU (RR 1.41 [95% CI 1.34-1.49]) than in the newborn nursery (RR 1.24 [95% CI 1.22-1.26]). Intentional home birth and use of infertility treatment were associated with breastfeeding initiation. The rate of breastfeeding initiation is lower in infants admitted to the NICU than those who are not, especially among mothers with limited prenatal care. Interventions should target mothers who smoke because they are least likely to breastfeed, and their babies, who are prone to serious health conditions, could especially benefit from breastmilk.

Perinatal breastfeeding interventions including fathers/partners: A systematic review of the literature

OBJECTIVE

Support from fathers is consistently associated with improved breastfeeding duration and exclusivity rates. Additionally, there is growing evidence that fathers want to be included in breastfeeding interventions provided by health care professionals. The objective of this review was to determine the effect of partner-inclusive educational and psychosocial interventions on breastfeeding initiation, duration, and exclusivity.

DESIGN

A systematic review was conducted using a search strategy developed with an expert health sciences librarian. Electronic databases MEDLINE, EMBASE, CINAHL, and PsycINFO were systematically searched for randomized controlled trials and quasi-experimental studies from inception to August 4, 2018. Independent data extraction and quality assessments were conducted by authors using Cochrane Collaboration tools. Due to significant heterogeneity in intervention content, outcome measures, and follow-up time points, data were synthesized qualitatively.

FINDINGS

3982 articles were identified, of which 12 studies in 15 publications met the inclusion criteria and were included. All of the studies improved at least one breastfeeding outcome, including duration (n = 5/9) and exclusivity (n = 8/10) up to 24 weeks postpartum. Six studies examined increasing paternal breastfeeding support and all found beneficial effects. Biases were identified in the studies with the most common bias relating to the randomization process and the blinding of outcome assessors.

IMPLICATIONS FOR PRACTICE

The inclusion of fathers/partners in breastfeeding interventions improves breastfeeding initiation, duration, and exclusivity rates. Interventions that include face-to-face information delivery, are designed in a culturally appropriate manner, and provide information on how partners can support breastfeeding are more likely to have a beneficial effect. Research is warranted to examine the underlying intervention mechanisms.

NICU Nurses and Lactation-Based Support and Care

BACKGROUND

The provision of human milk and breastfeeding is essential in the neonatal intensive care unit (NICU) population. However, recent national research has demonstrated very low percentages of NICU nurses providing lactation-based support and care to patients and families, and less than half of all NICUs have an International Board Certified Lactation Consultant (IBCLC) on staff.

PURPOSE

The purpose of this study was to describe how NICU bedside nurses are providing lactation-based support and care during their shifts and the frequency of that support. The secondary aim was to gain an understanding of the NICU nurses' attitudes toward human milk and breastfeeding.

METHODS

Through a prospective descriptive cohort design, the authors of this study created and disseminated a web-based survey (SurveyMonkey) of 21 questions including the Iowa Infant Feeding Attitude Scale (IIFAS) to a Northeastern urban hospital staff of bedside nurses.

RESULTS

A total of 140 of the 389 eligible NICU bedside nurses responded to the survey. Between 50.7% and 72.9% of nurses reported to providing lactation-based support and care during the previous shift worked and during the previous week worked, respectively. The participants' responses to the IIFAS resulted in an overall score of 69.1, indicating an attitude of "positive to breastfeeding."

IMPLICATIONS FOR PRACTICE

The study demonstrates that the majority provide lactation-based support and care on every shift and hold very positive attitudes toward the provision of human milk and breastfeeding. Hospitals should be encouraged to promote educational and training programs in their respective institutions.

IMPLICATIONS FOR RESEARCH

Researchers should examine NICU nurses' attitudes and beliefs about human milk and breastfeeding on a national scale.

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended that infants be breastfed exclusively until six months of age, with breastfeeding continuing as an important part of the infant's diet until at least two years of age. However, current breastfeeding rates in many countries do not reflect this recommendation.

OBJECTIVES

To describe forms of breastfeeding support which have been evaluated in controlled studies, the timing of the interventions and the settings in which they have been used.To examine the effectiveness of different modes of offering similar supportive interventions (for example, whether the support offered was proactive or reactive, face-to-face or over the telephone), and whether interventions containing both antenatal and postnatal elements were more effective than those taking place in the postnatal period alone.To examine the effectiveness of different care providers and (where information was available) training.To explore the interaction between background breastfeeding rates and effectiveness of support.

SEARCH METHODS

We searched Cochrane Pregnancy and Childbirth's Trials Register (29 February 2016) and reference lists of retrieved studies.

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. The quality of the evidence was assessed using the GRADE approach.

MAIN RESULTS

This updated review includes 100 trials involving more than 83,246 mother-infant pairs of which 73 studies contribute data (58 individually-randomised trials and 15 cluster-randomised trials). We considered that the overall risk of bias of trials included in the review was mixed. Of the 31 new studies included in this update, 21 provided data for one or more of the primary outcomes. The total number of mother-infant pairs in the 73 studies that contributed data to this review is 74,656 (this total was 56,451 in the previous version of this review). The 73 studies were conducted in 29 countries. Results of the analyses continue to confirm that all forms of extra support analyzed together showed a decrease in cessation of 'any breastfeeding', which includes partial and exclusive breastfeeding (average risk ratio (RR) for stopping any breastfeeding before six months 0.91, 95% confidence interval (CI) 0.88 to 0.95; moderate-quality evidence, 51 studies) and for stopping breastfeeding before four to six weeks (average RR 0.87, 95% CI 0.80 to 0.95; moderate-quality evidence, 33 studies). All forms of extra support together also showed a decrease in cessation of exclusive breastfeeding at six months (average RR 0.88, 95% CI 0.85 to 0.92; moderate-quality evidence, 46 studies) and at four to six weeks (average RR 0.79, 95% CI 0.71 to 0.89; moderate quality, 32 studies). We downgraded evidence to moderate-quality due to very high heterogeneity.We investigated substantial heterogeneity for all four outcomes with subgroup analyses for the following covariates: who delivered care, type of support, timing of support, background breastfeeding rate and number of postnatal contacts. Covariates were not able to explain heterogeneity in general. Though the interaction tests were significant for some analyses, we advise caution in the interpretation of results for subgroups due to the heterogeneity. Extra support by both lay and professionals had a positive impact on breastfeeding outcomes. Several factors may have also improved results for women practising exclusive breastfeeding, such as interventions delivered with a face-to-face component, high background initiation rates of breastfeeding, lay support, and a specific schedule of four to eight contacts. However, because within-group heterogeneity remained high for all of these analyses, we advise caution when making specific conclusions based on subgroup results. We noted no evidence for subgroup differences for the any breastfeeding outcomes.

AUTHORS' CONCLUSIONS

When breastfeeding support is offered to women, the duration and exclusivity of breastfeeding is increased. Characteristics of effective support include: that it is offered as standard by trained personnel during antenatal or postnatal care, that it includes ongoing scheduled visits so that women can predict when support will be available, and that it is tailored to the setting and the needs of the population group. Support is likely to be more effective in settings with high initiation rates. Support may be offered either by professional or lay/peer supporters, or a combination of both. Strategies that rely mainly on face-to-face support are more likely to succeed with women practising exclusive breastfeeding.

The Relationship Between Behavioral States and Oral Feeding Efficiency in Preterm Infants

BACKGROUND

The relationship between behavioral states (alert, sleep, drowsy, and crying) and oral feeding efficiency in preterm infants is not well understood.

PURPOSE

To determine the relationship between behavioral states and feeding efficiency in preterm infants.

METHODS

This correlational study was conducted as a secondary analysis from a randomized controlled trial. Medically stable preterm infants born between 29 and 34 weeks' gestational age participated. Baseline data from the randomized controlled trial (week 0), 1 minute prior to feeding, were used. Behavioral states were coded by 2 blinded coders. Oral feeding efficiency (mL/min) was calculated as the amount of intake over the first 10 minutes of feeding.

RESULTS

Data from 147 infants were included. The proportion of time spent in alert states (β = .76, F = 11.29, P ≤ .05), sleep states (β = -1.08, F = 25.26, P ≤ .05), and crying (β = 1.50, F = 12.51, P ≤ .05) uniquely predicted oral feeding efficiency.

IMPLICATIONS FOR PRACTICE

Comprehensive assessment of behavioral states and infant characteristics for oral feeding readiness is crucial. Alert states are optimal for oral feeding. Forced oral feeding when infants are sleeping should be avoided. Infants in crying or drowsy states prior to feeding should be closely evaluated. Sleeping or drowsy infants may benefit from interventions (eg, oral sensory stimulation, nonnutritive sucking, or multisensory intervention) to support transition to alert states prior to feeding.

IMPLICATIONS FOR RESEARCH

Future research should evaluate behavioral states prior to and during feeding and their relationship to oral feeding efficiency.

Methods of milk expression for lactating women

BACKGROUND

Breastfeeding is important, however not all infants can feed at the breast and methods of expressing milk need evaluation.

OBJECTIVES

To assess acceptability, effectiveness, safety, effect on milk composition, contamination and costs of methods of milk expression.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (21 March 2016), handsearched relevant journals and conference proceedings, and contacted experts in the field to seek additional published or unpublished studies. We also examined reference lists of all relevant retrieved papers.

SELECTION CRITERIA

Randomised and quasi-randomised trials comparing methods at any time after birth.

DATA COLLECTION AND ANALYSIS

Three review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy.

MAIN RESULTS

This updated review includes 41 trials involving 2293 participants, with 22 trials involving 1339 participants contributing data for analysis. Twenty-six of the trials referred to mothers of infants in neonatal units (n = 1547) and 14 to mothers of healthy infants at home (n = 730), with one trial containing mothers of both neonatal and healthy older infants (n = 16). Eleven trials compared one or more types of pump versus hand expression and 14 studies compared one type of pump versus another type of pump, with three of these studies comparing both hand expression and pump types. Twenty studies compared a specific protocol or adjunct behaviour including sequential versus simultaneous pumping protocols, pumping frequency, provision of an education and support intervention, relaxation, breast massage, combining hand expression with pumping and a breast cleansing protocol.Due to heterogeneity in participants, interventions, and outcomes measured or reported, we were unable to pool findings for most of the specified outcomes. It was not possible therefore to produce a 'Summary of findings' table in this update. Most of the included results were derived from single studies. Trials took place in 14 countries under a variety of circumstances and were published from 1982 to 2015. Sixteen of the 30 trials that evaluated pumps or products had support from the manufacturers. The risk of bias of the included studies was variable. Primary outcomesOnly one of the 17 studies examining maternal satisfaction/acceptability with the method or adjunct behaviour provided data suitable for analysis. In this study, self-efficacy was assessed by asking mothers if they agreed or disagreed with the following statement: 'I don't want anyone to see me (hand expressing/pumping)'. The study found that mothers who were using the electric pump were more likely to agree with the statement compared to mothers hand expressing, (mean difference (MD) 0.70, 95% confidence interval (CI) 0.15 to 1.25; P = 0.01, participants = 68). Mothers who were hand expressing reported that the instructions for expression were clearer compared to the electric pump, (MD -0.40, 95% CI -0.75 to -0.05; P = 0.02, participants = 68). Descriptive reporting of satisfaction in the other studies varied in the measures used, did not indicate a clear preference for one pump type, although there was satisfaction with some relaxation and support interventions.We found no clinically significant differences between methods related to contamination of the milk that compared any type of pump to hand expression (risk ratio (RR) 1.13, 95% CI 0.79 to 1.61; P = 0.51, participants = 28), manual pump compared to hand expression, (MD 0.20, 95% CI -0.18 to 0.58; P = 0.30, participants = 142) a large electric pump compared to hand expression (MD 0.10, 95% CI -0.29 to 0.49; P = 0.61, participants = 123), or a large electric pump compared to a manual pump (MD -0.10, 95% CI -0.46 to 0.26; P = 0.59, participants = 141).The level of maternal breast or nipple pain or damage was similar in comparisons of a large electric pump to hand expression (MD 0.02, 95% CI -0.67 to 0.71; P = 0.96, participants = 68). A study comparing a manual and large electric pump, reported sore nipples in 7% for both groups and engorgement in 4% using a manual pump versus 6% using an electric pump; and in one study no nipple damage was reported in the hand-expression group, and one case of nipple damage in each of the manual pump and the large electric pump groups.One study examined adverse effects on infants, however as the infants did not all receive their mothers' expressed milk, we have not included the results. Secondary outcomesThe quantity of expressed milk obtained was increased, in some studies by a clinically significant amount, in interventions involving relaxation, music, warmth, massage, initiation of pumping, increased frequency of pumping and suitable breast shield size. Support programmes and simultaneous compared to sequential pumping did not show a difference in milk obtained. No pump consistently increased the milk volume obtained significantly.In relation to nutrient quality, hand expression or a large electric pump were found to provide higher protein than a manual pump, and hand expression provided higher sodium and lower potassium compared to a large electric pump or a manual pump. Fat content was higher with breast massage when pumping; no evidence of difference was found for energy content between methods.No consistent effect was found related to prolactin change or effect on oxytocin release with pump type or method. Economic aspects were not reported.

AUTHORS' CONCLUSIONS

The most suitable method for milk expression may depend on the time since birth, purpose of expression and the individual mother and infant. Low-cost interventions including initiation of milk expression sooner after birth when not feeding at the breast, relaxation, massage, warming the breasts, hand expression and lower cost pumps may be as effective, or more effective, than large electric pumps for some outcomes. Variation in nutrient content across methods may be relevant to some infants. Small sample sizes, large standard deviations, and the diversity of the interventions argue caution in applying these results beyond the specific method tested in the specific settings. Independently funded research is needed for more trials on hand expression, relaxation and other techniques that do not have a commercial potential.

The Effectiveness of Lactation Consultants and Lactation Counselors on Breastfeeding Outcomes

Breastfeeding for all infants starting at birth and continuing until at least 6 months of age has been recommended by the World Health Organization and the American Academy of Pediatrics. The health benefits to infants and mothers have been demonstrated in many studies. Dedicated lactation specialists may play a role in providing education and support to pregnant women and new mothers wishing to breastfeed to improve breastfeeding outcomes. The objective of this review was to assess if lactation education or support programs using lactation consultants or lactation counselors would improve rates of initiation and duration of any breastfeeding and exclusive breastfeeding compared with usual practice. A systematic literature review of the evidence was conducted using electronic databases. The review was limited to randomized trials and yielded 16 studies with 5084 participants. It was found that breastfeeding interventions using lactation consultants and counselors increase the number of women initiating breastfeeding (odds ratio [OR] for any initiation vs not initiating breastfeeding = 1.35; 95% confidence interval [CI], 1.10-1.67). The interventions improve any breastfeeding rates (OR for any breastfeeding up to 1 month vs not breastfeeding = 1.49; 95% CI, 1.09-2.04). In addition, there were beneficial effects on exclusive breastfeeding rates (OR for exclusive breastfeeding up to 1 month vs not exclusive breastfeeding = 1.71; 95% CI, 1.20-2.44). Most of the evidence would suggest developing and improving postpartum support programs incorporating lactation consultants and lactation counselors.

BReastfeeding Attitude and Volume Optimization (BRAVO) trial: study protocol for a randomized controlled trial

BACKGROUND

A growing body of evidence shows the short-term benefits of breastfeeding, which include protection against infections, allergies, and lung diseases. However, evidence on the long-term benefits of breastfeeding is scarce and often conflicting. The BReastfeeding Attitude and Volume Optimization (BRAVO) trial is designed to study the effect of breastfeeding on early signs of later chronic diseases, particularly cardiovascular, respiratory, and metabolic risks later in life. In addition, the effectiveness of breastfeeding empowerment in promoting breastfeeding will also be evaluated.

METHODS/DESIGN

This study is an ongoing randomized trial in Jakarta, Indonesia, that began in July 2012. Pregnant women are being screened for their breastfeeding plan in the third trimester, and those with low intention to breastfeed are randomly allocated to either receiving an add-on breastfeeding-optimization program or usual care. Primary outcomes include breastfeeding rate, lung function, and blood pressure during the first year of life and vascular/cardiac characteristics, which will be measured at the age of 4 to 5 years. Child growth and infection/illness episodes are measured, whereas cognitive testing is planned for the children at 5 years of age.

DISCUSSION

To date, 784 women (80 %) have been randomized of the 1,000 planned, with satisfactory completeness of the 1-year follow up (90.1 %). Included mothers are of lower socioeconomic status and more often have blue-collar jobs, similar to what was observed in the pilot study.

TRIAL REGISTRATION

ClinicalTrials.gov, NCT01566812 . Registered on 27 March 2012.

Factors Associated with Breast Milk Feeding of Very Preterm Infants from Birth to 6 Months Corrected Age

OBJECTIVES

To investigate factors that may affect breast milk feeding (BMF) practices among very preterm infants.

MATERIALS AND METHODS

This retrospective study included infants born before 32 weeks gestational age (GA) and monitored up to 6 months corrected age (CA). Feeding method was assessed at day 14 of life, 36 weeks GA, 6 weeks after home discharge, and 6 months CA. Multivariable logistic regression analysis was used to examine which factors were associated with BMF initiation at cessation.

RESULTS

Of 181 infants who qualified for the study, 146 (81%) initiated BMF. Of these, 80% were mainly BMF (≥75% of daily nutrition volume). At 36 weeks GA, 6 weeks postdischarge, and 6 months CA, 130 (71.8%), 87 (48%), and 36 (19.9%) infants, respectively, continued to receive some BMF. Multivariate analysis revealed that initiation of BMF was more common with younger GA and higher level of maternal education. Infants whose mothers failed to supply ≥75% of daily nutrition as BMF at day 14 were more likely to be exclusively formula fed 6 weeks after discharge. Cessation of BMF at 6 months CA was associated with birth at >28 weeks.

CONCLUSIONS

Successful BMF can be commenced and maintained throughout hospitalization in the majority of very preterm infants. Despite a significant dropout rate occurring within several weeks after discharge, in this select cohort, infants with lower GA were more likely to be breastfed after discharge.

A Multidisciplinary Quality Improvement Approach Increases Breastmilk Availability at Discharge from the Neonatal Intensive Care Unit for the Very-Low-Birth-Weight Infant

BACKGROUND

Mothers of very-low-birth-weight (VLBW) infants often struggle to establish and maintain a milk supply. Children's Hospital of Orange County (CHOC Children's) data from 2005 to 2011 showed that while the total percentage of all neonatal intensive care unit (NICU) babies being discharged on breastmilk had remained stable, the percentage of VLBW babies with breastmilk at discharge had declined. This information resulted in a quality improvement initiative to remove barriers and implement programs shown to have the greatest impact on initiating and sustaining lactation in this patient subset. The objective of this initiative was to increase breastmilk availability at discharge for the VLBW population.

MATERIALS AND METHODS

A multidisciplinary program was initiated, which included NICU parent and staff education, clarification of roles, and improved access to pumping supplies. Physicians and nurses completed online education. An algorithm defining roles in lactation support was developed, and a resource team of trained bedside nurses was formed. Lactation consultant time was then refocused on the VLBW population. In addition, "Lactation Support" was added to the physician daily documentation to bring the topic to daily bedside rounds. Twice weekly lactation rounds between the lactation consultant and neonatologist addressed lactation concerns for each dyad. To address pumping issues, the loaner pump program was enhanced.

RESULTS

To assess the effectiveness of the initiative, breastmilk availability at discharge for the VLBW population at CHOC Children's was compared from baseline (2011) to the end of June 2015. VLBW breastmilk availability at discharge upon project initiation was 58.7% and increased by 36% to a final rate of 80% by 2013--a rate sustained through the first 6 months of 2015.

CONCLUSIONS

The results of this initiative suggest that a multidisciplinary approach, including education, changes in workflow, and redefinition of roles, is effective in improving breastmilk rates at discharge in the VLBW patient population.

Factors associated with infant feeding of human milk at discharge from neonatal intensive care: Cross-sectional analysis of nurse survey and infant outcomes data

CONTEXT

Nurses are principal caregivers in the neonatal intensive care unit and support mothers to establish and sustain a supply of human milk for their infants. Whether an infant receives essential nutrition and immunological protection provided in human milk at discharge is an issue of health care quality in this setting.

OBJECTIVES

To examine the association of the neonatal intensive care unit work environment, staffing levels, level of nurse education, lactation consultant availability, and nurse-reported breastfeeding support with very low birth weight infant receipt of human milk at discharge.

DESIGN AND SETTING

Cross sectional analysis combining nurse survey data with infant discharge data.

PARTICIPANTS

A national sample of neonatal intensive care units (N=97), nurses (N=5614) and very low birth weight infants (N=6997).

METHODS

Sequential multivariate linear regression models were estimated at the unit level between the dependent variable (rate of very low birth weight infants discharged on "any human milk") and the independent variables (nurse work environment, nurse staffing, nursing staff education and experience, lactation consultant availability, and nurse-reported breastfeeding support).

RESULTS

The majority of very low birth weight infants (52%) were discharged on formula only. Fewer infants (42%) received human milk mixed with fortifier or formula. Only 6% of infants were discharged on exclusive human milk. A 1 SD increase (0.25) in the Practice Environment Scale of the Nursing Work Index composite score was associated with a four percentage point increase in the fraction of infants discharged on human milk (p<0.05). A 1 SD increase (0.15) in the fraction of nurses with a bachelor's degree in nursing was associated with a three percentage point increase in the fraction infants discharged on human milk (p<0.05). The acuity-adjusted staffing ratio was marginally associated with the rate of human milk at discharge (p=.056). A 1 SD increase (7%) in the fraction of infants who received breastfeeding support was associated with an eight percentage point increase in the fraction of infants discharged on human milk (p<0.001).

CONCLUSIONS

Neonatal intensive care units with better work environments, better educated nurses, and more infants who receive breastfeeding support by nurses have higher rates of very low birth weight infants discharged home on human milk. Investments by nurse administrators to improve work environments and support educational preparation of nursing staff may ensure that the most vulnerable infants have the best nutrition at the point of discharge.

Interventions to improve breastfeeding outcomes: a systematic review and meta-analysis

AIM

To provide comprehensive evidence of the effect of interventions on early initiation, exclusive, continued and any breastfeeding rates when delivered in five settings: (i) Health systems and services (ii) Home and family environment (iii) Community environment (iv) Work environment (v) Policy environment or a combination of any of above.

METHODS

Of 23977 titles identified through a systematic literature search in PUBMED, Cochrane and CABI, 195 articles relevant to our objective, were included. We reported the pooled relative risk and corresponding 95% confidence intervals as our outcome estimate. In cases of high heterogeneity, we explored its causes by subgroup analysis and meta-regression and applied random effects model.

RESULTS

Intervention delivery in combination of settings seemed to have higher improvements in breastfeeding rates. Greatest improvements in early initiation of breastfeeding, exclusive breastfeeding and continued breastfeeding rates, were seen when counselling or education were provided concurrently in home and community, health systems and community, health systems and home settings, respectively. Baby friendly hospital support at health system was the most effective intervention to improve rates of any breastfeeding.

CONCLUSION

To promote breastfeeding, interventions should be delivered in a combination of settings by involving health systems, home and family and the community environment concurrently.

An Intervention to Promote Breast Milk Production in Mothers of Preterm Infants

A pilot study was conducted to estimate the effects of a breast milk expression education and support intervention on breast milk production outcomes in mothers of very and extremely preterm infants. Forty mothers of hospitalized preterm infants (<30 weeks of gestation) were randomized to the experimental intervention or standard care for 6 weeks. Duration and frequency of breast milk expressions and volume of expressed breast milk were measured daily. Samples of breast milk were collected thrice during the study and analyzed for their lipid concentration. Mothers in the experimental group had a statistically significant higher duration of breast milk expression in min/day ( p = .043). Differences observed between the two groups regarding the frequency of breast milk expression, volume of breast milk, and lipid concentration were not statistically significant. Results suggest that the experimental intervention may promote breast milk production in mothers of very and extremely preterm infants.

Characteristics of the NICU work environment associated with breastfeeding support

PURPOSE

The provision of breastfeeding support in the neonatal intensive care unit (NICU) may assist a mother to develop a milk supply for the NICU infant. Human milk offers unique benefits and its provision unique challenges in this highly vulnerable population. The provision of breastfeeding support in this setting has not been studied in a large, multihospital study. We describe the frequency of breastfeeding support provided by nurses and examined relationships between NICU nursing characteristics, the availability of a lactation consultant (LC), and breastfeeding support.

SUBJECTS AND DESIGN

This was a secondary analysis of 2008 survey data from 6060 registered nurses in 104 NICUs nationally. Nurse managers provided data on LCs. These NICUs were members of the Vermont Oxford Network, a voluntary quality and safety collaborative.

METHODS

Nurses reported on the infants (n = 15,233) they cared for on their last shift, including whether breastfeeding support was provided to parents. Breastfeeding support was measured as a percentage of infants on the unit. The denominator was all infants assigned to all nurse respondents on that NICU. The numerator was the number of infants that nurses reported providing breastfeeding support. Nurses also completed the Practice Environment Scale of the Nursing Work Index (PES-NWI), a nationally endorsed nursing care performance measure. The NICU nursing characteristics include the percentages of nurses with a BSN or higher degree and with 5 or more years of NICU experience, an acuity-adjusted staffing ratio, and PES-NWI subscale scores. Lactation consultant availability was measured as any/none and in full-time equivalent positions per 10 beds.

RESULTS

The parents of 14% of infants received breastfeeding support from the nurse. Half of the NICUs had an LC. Multiple regression analysis showed a significant relationship between 2 measures of nurse staffing and breastfeeding support. A 1 SD higher acuity-adjusted staffing ratio was associated with a 2% increase in infants provided breastfeeding support. A 1 SD higher score on the Staffing and Resource Adequacy PES-NWI subscale was associated with a 2% increase in infants provided breastfeeding support. There was no association between other NICU nursing characteristics or LCs and nurse-provided breastfeeding support.

CONCLUSIONS

Nurses provide breastfeeding support around the clock. On a typical shift, about 1 in 7 NICU infants receives breastfeeding support from a nurse. Lactation consultants are not routinely available in NICUs, and their presence does not influence whether nurses provide breastfeeding support. Better nurse staffing fosters nurse provision of breastfeeding support.

Acceptability and feasibility of a breast milk expression education and support intervention in mothers of preterm infants

PURPOSE

A pilot study was conducted to assess the acceptability and feasibility of a breast milk expression education and support intervention in mothers of preterm infants and study procedures.

SUBJECTS

Forty mothers of preterm infants born at less than 30 weeks of gestation.

DESIGN

Pilot randomized controlled trial.

METHODS

Mothers of preterm infants were randomly allocated to the breast milk expression education and support intervention or standard care. The experimental intervention encompassed a breast milk expression education session on 7 themes, telephone follow-up, and telephone helpline.

MAIN OUTCOME MEASURES

Data related to the acceptability and feasibility of the intervention and study procedures were collected throughout the study. At the end of the study, mothers allocated to the experimental intervention completed a self-report questionnaire assessing the acceptability of each of the intervention components.

RESULTS

It was feasible to recruit 70% of eligible mothers and retain 83% of mothers who consented to participate in the study. Mothers reported that all the intervention components were appropriate and effective in supporting their breast milk production. Although the reliability of the data collection method was demonstrated, the fidelity of the telephone follow-up faced some challenges.

CONCLUSIONS

Both the intervention and study procedures were acceptable and feasible. Improvements related to the fidelity of the intervention would ensure the feasibility and internal validity of a larger-scale trial.

Targeted program for provision of mother's own milk to very low birth weight infants

OBJECTIVE

Evaluate the effect of an evolving targeted program to encourage mothers to provide own milk (MM) to their very low birth weight (VLBW) infants in a traditional open-bay NICU.

METHODS

Retrospective review of medical records on all VLBW infants (birth weight <1500 g) born in a geographical region of Norway in 1986/1987, 1996, and 2007/2008 (n = 203). Types of nutrition and data on maternal and infant health were prospectively and similarly recorded during all time periods. Between each period, targeted programs were initiated to encourage provision of MM.

RESULTS

The rates of providing MM (exclusively MM in parenthesis) for the 3 periods were 55% (33%), 85% (60%), and 89% (62%) when achieving full enteral feeds; 48% (11%), 76% (39%), and 92% (60%) at discharge; 15%, 42%, and 62% at 2 to 4 months' corrected age; and 10%, 40%, and 53% at 6 to 8 months' corrected age (P < .001 at all end points). Neither maternal or pregnancy disorders nor neonatal morbidity had significant effects on provision of MM, but smoking was associated with a lower rate after discharge.

CONCLUSIONS

Both early and long-term provision of MM for their VLBW infants were strongly associated with targeted programs to encourage provision. We suggest that almost all mothers are able to provide their own milk if given targeted encouragement and guidance, even in crowded open-bay NICUs.

Weaning and associated factors in children from low-income communities

Introduction: The average duration of breastfeeding is still insufficient and differ widely taking in account the location and specific characteristic of local people involved in these studies. Aim: This research aimed at studying factors associated to weaning among South Brazilian children living in a low-income household. Material and method: Cross-sectional study was carried out enrolling 124 mothers of 1 to 12-month-old children, who were interviewed at "Pastoral da Criança" (non-governmental organization) in Almirante Tamandaré, Paraná, Brazil. The risk of weaning considered was the dependent variable and the information collected from the questionnaires, independent variables. The method used to collect information in this study was Kaplan-Meier method and Cox regression model and Spearman's rank correlation (α = 0.05). Result: Actuarial life table presented a higher weaning conditional probability at 12 months of age, followed by first and fourth months of age. Multivariate analysis pointed out that contact with bottle feeding before the sixth month of age [HR=17.16 (2.34-125.86)] and contact with pacifier before the sixth months of age [HR=3.48 (1.90-6.38)] are risk factors associated with weaning. Among children who were not breastfed at the moment of the interview, breastfeeding duration presented a positive correlation with the ages when the children had their first contact with sugar (r s =+0.419, p=0.001) and negative correlation with the use of pacifier (r s =-0.300, p=0.017). Conclusion: Results from this study showed that the use of the feeding bottle and pacifier were related to a shorter breastfeeding time span at these communities.

Systematic review of interventions used in or relevant to occupational therapy for children with feeding difficulties ages birth-5 years

Research articles on the effectiveness of feeding interventions for infants and young children were identified, appraised, and synthesized. Thirty-four studies met the inclusion criteria and were reviewed. Three broad intervention themes regarding feeding approaches were identified on the basis of their theoretical orientations. These three feeding approaches were (1) behavioral interventions, (2) parent-directed and educational interventions, and (3) physiological interventions. Synthesis of the evidence suggested that various feeding approaches may result in positive outcomes in the areas of feeding performance, feeding interaction, and feeding competence of parents and children. This synthesis of empirical evidence supporting interventions for feeding problems provides a foundation for future research to define the types of outcomes that can be expected for children with different diagnoses or functional impairments and to develop best practice guidelines.

Influences on breastfeeding outcomes for healthy term and preterm/sick infants

OBJECTIVE

This study investigated breastfeeding outcomes and factors associated with duration of breastfeeding in cohorts of healthy term and sick/preterm infants.

STUDY DESIGN

Follow-up was conducted of 87 sick/preterm and 92 term healthy infants during the 9 months following discharge from two Western Australian hospitals.

RESULTS

When corrected for gestational age, breastfeeding duration did not differ between the entire cohort of sick/preterm and term healthy groups. Multivariable analysis showed that early cessation of breastfeeding was more likely for infants born at <33 weeks of gestation (hazard ratio [HR ]=2.05, 95% confidence interval [CI]=1.14-3.69), mothers who had previously breastfed for <6 months (HR=3.67, 95% CI=2.12-6.37), and for mothers who perceived breastfeeding to be important rather than very important (HR=2.58, 95% CI=1.59-4.20).

CONCLUSIONS

Maternal perceptions of breastfeeding as "important" rather than "very important" and previous breastfeeding duration of <6 months are negatively associated with breastfeeding duration; these factors can be identified and addressed during pregnancy and in the postnatal period. Preterm infants born at <33 weeks of gestation have a shorter breastfeeding duration than those born at a later gestation.

Support for healthy breastfeeding mothers with healthy term babies

BACKGROUND

There is extensive evidence of important health risks for infants and mothers related to not breastfeeding. In 2003, the World Health Organization recommended infants be exclusively breastfed until six months of age, with breastfeeding continuing as an important part of the infant's diet till at least two years of age. However, breastfeeding rates in many countries currently do not reflect this recommendation.

OBJECTIVES

To assess the effectiveness of support for breastfeeding mothers.

SEARCH METHODS

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (3 October 2011).

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for healthy breastfeeding mothers of healthy term babies with usual maternity care.

DATA COLLECTION AND ANALYSIS

Two review authors independently assessed trial quality and extracted data.

MAIN RESULTS

Of the 67 studies that we assessed as eligible for inclusion, 52 contributed outcome data to the review (56,451 mother-infant pairs) from 21 countries. All forms of extra support analysed together showed an increase in duration of 'any breastfeeding' (includes partial and exclusive breastfeeding) (risk ratio (RR) for stopping any breastfeeding before six months 0.91, 95% confidence interval (CI) 0.88 to 0.96). All forms of extra support together also had a positive effect on duration of exclusive breastfeeding (RR at six months 0.86, 95% CI 0.82 to 0.91; RR at four to six weeks 0.74, 95% CI 0.61 to 0.89). Extra support by both lay and professionals had a positive impact on breastfeeding outcomes. Maternal satisfaction was poorly reported.

AUTHORS' CONCLUSIONS

All women should be offered support to breastfeed their babies to increase the duration and exclusivity of breastfeeding. Support is likely to be more effective in settings with high initiation rates, so efforts to increase the uptake of breastfeeding should be in place. Support may be offered either by professional or lay/peer supporters, or a combination of both. Strategies that rely mainly on face-to-face support are more likely to succeed. Support that is only offered reactively, in which women are expected to initiate the contact, is unlikely to be effective; women should be offered ongoing visits on a scheduled basis so they can predict that support will be available. Support should be tailored to the needs of the setting and the population group.

Tecnologias de enfermagem para promoção do aleitamento materno: revisão integrativa da literatura

Objetivou-se realizar uma revisão integrativa da literatura sobre os tipos de tecnologias que o enfermeiro tem desenvolvido ou que o mesmo poderia utilizar para a promoção do aleitamento materno. Realizou-se em outubro de 2009 uma busca com os descritores aleitamento materno (breastfeeding), enfermagem (nursing) e tecnologia (technology) nas bases: CINAHL, Scopus, PubMed e LILACS. Encontraram-se 127 referências, das quais dez participaram da análise por atenderem aos critérios de seleção do estudo. Verificou-se que a maioria dos estudos (6 - 60%) foi encontrada no Pubmed, na língua inglesa (8 - 80%) e não citou o tipo de estudo (4 - 40%). Identificaram-se 13 tipos de tecnologias para o cuidado, classificadas como dura (8 - 61,5%) e leve (5 - 38,5%), cujo principal público-alvo foi mães de crianças (9 - 90%), sendo a tecnologia mais utilizada o vídeo/filmagem (4 - 40%). Assim, deve-se estimular o uso de tecnologias, sobretudo as consideradas leves e leves-duras, por serem práticas, facilmente desenvolvidas e aplicáveis.

Breastfeeding promotion for infants in neonatal units: a systematic review

BACKGROUND

Breastfeeding/breastmilk feeding of infants in neonatal units is vital to the preservation of short- and long-term health, but rates are very low in many neonatal units internationally. The aim of this review was to evaluate the effectiveness of clinical, public health and health promotion interventions that may promote or inhibit breastfeeding/breastmilk feeding for infants admitted to neonatal units.

METHODS

Systematic review with narrative synthesis. Studies were identified from structured searches of 19 electronic databases from inception to February 2008; hand searching of bibliographies; Advisory Group members helped identify additional sources.

INCLUSION CRITERIA

controlled studies of interventions intended to increase breastfeeding/feeding with breastmilk that reported breastmilk feeding outcomes and included infants admitted to neonatal units, their mothers, families and caregivers. Data were extracted and appraised for quality using standard processes. Study selection, data extraction and quality assessment were independently checked. Study heterogeneity prevented meta-analysis.

RESULTS

Forty-eight studies were identified, mainly measuring short-term outcomes of single interventions in stable infants. We report here a sub-set of 21 studies addressing interventions tested in at least one good-quality or more than one moderate-quality study. Effective interventions identified included kangaroo skin-to-skin contact, simultaneous milk expression, peer support in hospital and community, multidisciplinary staff training, and Unicef Baby Friendly accreditation of the associated maternity hospital.

CONCLUSIONS

Breastfeeding/breastmilk feeding is promoted by close, continuing skin-to-skin contact between mother and infant, effective breastmilk expression, peer support in hospital and community, and staff training. Evidence gaps include health outcomes and costs of intervening with less clinically stable infants, and maternal health and well-being. Effects of public health and policy interventions and the organization of neonatal services remain unclear. Infant feeding in neonatal units should be included in public health surveillance and policy development; relevant definitions are proposed.

Human-milk feeding after NICU discharge

PURPOSE

Difficulty with breastfeeding is common, and challenges are particularly pronounced for mothers of ill or preterm infants. This study explores the breastfeeding experiences of mothers of these at-risk infants to determine their breastfeeding patterns and to better understand reasons they prematurely stop breastfeeding and/or human-milk feeding (HMF).

DESIGN

A qualitative, longitudinal, descriptive design was used.

SAMPLE

The sample consisted of 144 mothers whose preterm or ill infants were cared for in either an NICU or an intermediate care nursery in a large central Canadian city; 112 mothers completed data collection to six weeks after their infants were discharged from the hospital.

MAIN OUTCOME VARIABLE

The main outcome variable was continued breastfeeding or HMF of formerly ill or preterm infants at one and six weeks after their discharge from the hospital.

RESULTS

Of infants who were being fed mother's milk when discharged from the hospital, 71 percent continued to receive at least some mother's milk at six weeks after discharge. Mothers reported that their own physical and emotional problems, infant health concerns, and lack of time and support were reasons for discontinuing provision of human milk.

Infants admitted to neonatal units--interventions to improve breastfeeding outcomes: a systematic review 1990-2007

This review aimed to identify interventions to promote breastfeeding or breast milk feeding for infants admitted to the neonatal unit. The medical electronic databases were searched for papers listed between 1990 and June 2005 which had breastfeeding or breast milk as an outcome and which targeted infants who had been admitted to a neonatal unit, thus including the infant and/or their parents and/or neonatal unit staff. Only papers culturally relevant to the UK were included resulting in studies from the USA, Canada, Europe, Australia and New Zealand. This search was updated in December 2007 to include publications up to this date. We assessed 86 papers in full, of which 27 ultimately fulfilled the inclusion criteria. The studies employed a range of methods and targeted different aspects of breastfeeding in the neonatal unit. Variations in study type and outcomes meant that there was no clear message of what works best but skin-to-skin contact and additional postnatal support seemed to offer greater advantage for the infant in terms of breastfeeding outcome. Galactogogues for mothers who are unable to meet their infants' needs may also help to increase milk supply. Evidence of an effect from other practices, such as cup-feeding on breastfeeding was limited; mainly because of a lack of research but also because few studies followed up the population beyond discharge from the unit. Further research is required to explore the barriers to breastfeeding in this vulnerable population and to identify appropriate interventions to improve breastfeeding outcomes.

The breastfeeding mother and the pediatrician

An estimated 70% of mothers in the United States initiate breastfeeding annually. Mothers often discuss breastfeeding problems with their infant's pediatrician. Pediatricians may feel unsure about their role when assisting the nonpatient, breastfeeding mother. By having practical solutions and support systems in place to anticipate and tend to breastfeeding mothers' needs, pediatricians can be instrumental in preventing early weaning. The purpose of this article is to provide practical suggestions to outpatient-based pediatric health care providers when assisting the breastfeeding dyad.

Growth and nutrient intakes of human milk-fed preterm infants provided with extra energy and nutrients after hospital discharge

OBJECTIVES

The purpose of this pilot study was to determine whether mixing a multinutrient fortifier to approximately one half of the human milk fed each day for a finite period after discharge improves the nutrient intake and growth of predominantly human milk-fed low birth weight infants. We also assessed the impact of this intervention on the exclusivity of human milk feeding.

METHODS

Human milk-fed (> or = 80% feeding per day) low birth weight (750-1800 g) infants (n = 39) were randomly assigned at hospital discharge to either a control or an intervention group. Infants in the control group were discharged from the hospital on unfortified human milk. Nutrient enrichment of human milk in the intervention group was achieved by mixing approximately one half of the human milk provided each day with a powdered multinutrient human milk fortifier for 12 weeks after discharge. Milk with added nutrients was estimated to contain approximately 80 kcal (336 kJ) and 2.2 g protein/100 mL plus other nutrients. Intensive lactation support was provided to both groups.

RESULTS

Infants in the intervention group were longer during the study period, and those born < or = 1250 g had larger head circumferences than infants in the control group. There was a trend toward infants in the intervention group to be heavier at the end of the intervention compared with those in the control group. Mean protein, zinc, calcium, phosphorus, and vitamins A and D intakes were higher in the intervention group.

CONCLUSIONS

Results from this study suggest that adding a multinutrient fortifier to approximately one half of the milk provided to predominantly human milk-fed infants for 12 weeks after hospital discharge may be an effective strategy in addressing early discharge nutrient deficits and poor growth without unduly influencing human milk feeding when intensive lactation support is provided.

NICU lactation consultant increases percentage of outborn versus inborn babies receiving human milk

OBJECTIVE

To determine the effect of a dedicated lactation consultant (LC) on the percentage of neonates receiving any human milk in the neonatal intensive care unit (NICU) and at discharge over time.

STUDY DESIGN

Retrospective chart review of three time periods of 3 months each; Time period 1 (before LC hire), Time period 2 (T2; after LC arrival) and Time period 3 (subsequent period after T2).

RESULT

Percentage of infants receiving any HM during hospital stay and at discharge increased significantly over time after LC hire and with LC experience. Outborn (OB) infants receiving any HM in the NICU and at discharge increased over time, but there was no significant change for inborn infants, as the proportion receiving any HM remained consistently high over time.

CONCLUSION

Addition of a dedicated LC to the NICU increased the percentage of neonates receiving any HM, specifically in the OB population.

Successful breastfeeding after discharge of preterm and sick newborn infants

AIM

To determine the extent and duration of breastfeeding in preterm and sick newborn infants admitted to a level IIb neonatal unit (NU).

METHOD

Hospital-based follow-up of 1730 infants born in 1996, 2001 and 2004, and studied from discharge to 6 months of post-natal age.

RESULTS

At discharge from the NU, 98% of term (n = 945) and 92% of preterm (n = 785) infants were exclusively or partly breastfed. Exclusive breastfeeding increased at 2 months of corrected post-natal age and 78% of term infants were still exclusively or partly breastfed at 6 months of corrected post-natal age. Duration of breastfeeding among preterm infants was significantly shorter than in infants born at term. However, even among extremely preterm infants with a gestational age <28 weeks, 41% were still breastfeeding, exclusively or in part, at 6 months of post-natal age. There was no difference in breastfeeding after neonatal care in 1996 as compared to 2004. Moreover, the study showed that the breastfeeding after neonatal care differed only slightly from population data for all infants in Sweden.

CONCLUSION

Breastfeeding can be successfully established in most preterm and previously sick neonates.

Feeding patterns of Brazilian preterm infants during the first 6 months of life, Londrina, Parana, Brazil

The present study evaluated the breastfeeding practice of 278 preterm infants born at the University Hospital of Londrina, Paraná, Brazil, during hospitalization and in the first 6 months of life. Data were obtained from the hospital records, and the mothers were interviewed by home visit (75.5%) or by telephone (24.5%) when the children were 6 months old. Data were analyzed statistically using the Kaplan-Meier survival method and Cox's multivariate regression model. During hospitalization, 100% of the preterm infants received human milk and 31% received exclusive breastfeeding. The median duration of exclusive breastfeeding and breastfeeding was 63.5 and > 180 days, respectively. The prevalence of breastfeeding in the sixth month was 54.7%, and 6.8% of the infants were still exclusively breastfed. Pacifiers were used (currently using or ever used) by 127 (45.7%) preterm infants and were associated with a 1.67 times higher risk of interruption of exclusive breastfeeding.

Perinatal and socioeconomic determinants of breastfeeding duration in very preterm infants

AIM

To describe the impact of prematurity, size at birth, neonatal disorders and the families' socioeconomic status (SES) on breastfeeding duration in mothers of very preterm infants.

METHODS

Prospective population-based cohort study. Data on breastfeeding, registered in databases in two Swedish counties in 1993-2001, were matched with data from two national registries: the Medical Birth Registry and Statistics Sweden. Mothers of 225 very preterm singleton infants were identified and included.

RESULTS

Seventy-nine percent of the mothers breastfed at 2 months, 62% at 4 months, 45% at 6 months, 22% at 9 months and 12% at 12 months. Prematurity, size at birth and neonatal disorders did not show an effect on breastfeeding duration. Being adversely exposed to any of the SES factors (maternal education, unemployment benefit, social welfare and equivalent disposable income in the household) was significantly associated with earlier weaning up to 6 months of infants' postnatal age.

CONCLUSIONS

This study shows new and noteworthy results concerning breastfeeding duration in mothers of very preterm infants, which was not influenced by degree of prematurity, size at birth or neonatal disorders but was affected by SES. This highlights the need for improved support of socioeconomically disadvantaged mothers, during and after the hospital stay.

Breast-fed low-birth-weight premature neonates: developmental assessment and nutritional intake in the first 6 months of life

A secondary analysis of a randomized clinical trial in which the control group received routine breast-feeding care, consisted of women planning to breast-feed their low-birth-weight (LBW) premature infants, was conducted. The purpose of this secondary analysis was to examine the nutrition of healthy premature LBW infants and its impact on their development. A longitudinal prospective descriptive design was implemented measuring the same group of 50 healthy breast-feeding LBW premature infants from birth to 6 months corrected age. Developmental screening was performed at 6 months corrected age using the Bayley Scales of Infant Development to assess development in Mental scale, Motor scale, and Infant Behavioral record. Repeated measures analyses of variance were performed between the 3 gestational age groups and between the breast-fed and non-breast-fed groups. Bayley Scales of Infant Development Mental and Motor scales showed significant differences between the breast-fed and non-breast-fed groups at 6 months corrected age (P < .014 and P < .013, respectively). The nutrition of healthy premature LBW infants over time was recorded and described. Nutritional assessment indicated that human milk intake in some quantity decreased from 40 weeks corrected age to 6 months corrected age: 70% to 26%. These findings can be utilized in anticipatory guidance when caring for neonates and mothers in the neonatal intensive care unit to encourage mothers to provide their own milk and strive to breast-feed.

Support for breastfeeding mothers

BACKGROUND

There is extensive evidence of the benefits of breastfeeding for infants and mothers. In 2003, the World Health Organization (WHO) recommended infants be fed exclusively on breast milk until six months of age. However, breastfeeding rates in many developed countries continue to be resistant to change.

OBJECTIVES

To assess the effectiveness of support for breastfeeding mothers.

SEARCH STRATEGY

We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (January 2006), MEDLINE (1966 to November 2005), EMBASE (1974 to November 2005) and MIDIRS (1991 to September 2005).

SELECTION CRITERIA

Randomised or quasi-randomised controlled trials comparing extra support for breastfeeding mothers with usual maternity care.

DATA COLLECTION AND ANALYSIS

Two authors independently assessed trial quality and extracted data.

MAIN RESULTS

We have included 34 trials (29,385 mother-infant pairs) from 14 countries. All forms of extra support analysed together showed an increase in duration of 'any breastfeeding' (includes partial and exclusive breastfeeding) (relative risk (RR) for stopping any breastfeeding before six months 0.91, 95% confidence interval (CI) 0.86 to 0.96). All forms of extra support together had a larger effect on duration of exclusive breastfeeding than on any breastfeeding (RR 0.81, 95% CI 0.74 to 0.89). Lay and professional support together extended duration of any breastfeeding significantly (RR before 4-6 weeks 0.65, 95% 0.51 to 0.82; RR before 2 months 0.74, 95% CI 0.66 to 0.83). Exclusive breastfeeding was significantly prolonged with use of WHO/UNICEF training (RR 0.69, 95% CI 0.52 to 0.91). Maternal satisfaction was poorly reported.

AUTHORS' CONCLUSIONS

Additional professional support was effective in prolonging any breastfeeding, but its effects on exclusive breastfeeding were less clear. WHO/UNICEF training courses appeared to be effective for professional training. Additional lay support was effective in prolonging exclusive breastfeeding, while its effects on duration of any breastfeeding were uncertain. Effective support offered by professionals and lay people together was specific to breastfeeding and was offered to women who had decided to breastfeed. Further trials are required to assess the effectiveness (including cost-effectiveness) of both lay and professional support in different settings, particularly those with low rates of breastfeeding initiation, and for women who wish to breastfeed for longer than three months. Trials should consider timing and delivery of support interventions and relative effectiveness of intervention components, and should report women's views. Research into appropriate training for supporters (whether lay or professional) of breastfeeding mothers is also needed.

Fathers' perceptions of supportive behaviors for the provision of breast milk to premature infants

PURPOSE

To explore fathers' perceptions of behaviors used to support the provision of breast milk to hospitalized premature infants.

SUBJECTS

Sixteen English-speaking fathers who, each were at least 15 years of age, had a hospitalized premature infant between 24 and 32 weeks gestation and a partner who had decided to provide breast milk.

DESIGN

As part of a larger, exploratory study, a qualitative descriptive study was conducted to analyze fathers' perceived contributions to the process of providing breast milk.

METHODS

Fathers were interviewed with a semi-structured interview guide. All interviews were audiotaped, and verbatim transcripts were analyzed by using qualitative descriptive methods.

MAIN OUTCOME MEASURE

Supportive behaviors as identified by fathers of hospitalized premature infants.

PRINCIPAL RESULTS

Fathers described 3 types of behaviors used to support the provision of breast milk to their hospitalized premature infants: assistance with the pumping process, assumption of additional daily domestic responsibilities, and provision of moral support.

CONCLUSIONS

Results from this study suggest several significant behaviors that fathers perceived they performed to support their partners' efforts to provide breast milk to their hospitalized premature infants.

Prediction of Feeding Performance in Preterm Infants

A nonexperimental study with a sample of 95 preterm infants was used to develop a model of feeding performance outcomes (proficiency, percent of prescribed volume consumed, and efficiency) using feeding readiness indicators (morbidity, maturity, behavior state at feeding start, and feeding experience). All readiness indicators were related to each other. In particular, there was a strong relationship between maturity and feeding experience. Morbidity only had an effect on efficiency; the most ill infants were less efficient feeders. Behavior state affects all feeding outcomes in a linear fashion; more awake and alert infants had better feeding performance outcomes. The effect of experience and maturity on the outcomes is more complex because of the relationship between the two. Experience has a greater effect as the infant matures, and as the infant matures, the amount of experience increases. Successful feeding requires maturity as well as experience.

A review of the literature examining the benefits and challenges, incidence and duration, and barriers to breastfeeding in preterm infants

Breastfeeding benefits preterm infants from a nutritional, gastrointestinal, immunological, developmental, and psychological perspective. Despite the benefits, the incidence and duration of breastfeeding preterm infants continues to be less than that of full-term infants. The lower incidence is probably related to breastfeeding challenges that preterm infants and parents face, including establishing and maintaining a milk supply and transitioning from gavage feeding to breastfeeding. In order to increase the incidence and duration of breastfeeding preterm infants, researchers must examine breastfeeding experiences longitudinally. This way, researchers and clinicians can begin to understand the barriers to breastfeeding at various time periods in the breastfeeding experience and begin implementing strategies to remove these barriers.

Qualitative analysis of barriers to breastfeeding in very-low-birthweight infants in the hospital and postdischarge

PURPOSE

To determine barriers to the successful establishment and maintenance of breastfeeding in very-low-birthweight (VLBW) infants, both in the hospital and after discharge, and changes in barriers over time.

SUBJECTS

Sixty-four mothers of infants <1500 g birth weight who planned to breastfeed and were in the supplementary structured breastfeeding counseling intervention group.

DESIGN

This qualitative, longitudinal study is a secondary analysis of a previously reported randomized controlled trial of a breastfeeding support intervention that examined infants weighing <1500 g at birth.

METHODS

A qualitative technique, content analysis, was used to review, analyze, interpret, and categorize data for the current study. Data were extracted from the research records of the research lactation consultant that addressed all aspects of mothers' reported breastfeeding experiences. The principal investigator identified the main issues of the conversations, entered these into a summary chart, and then assigned appropriate categories. All categories are a reflection of maternal perception. Categorical data were analyzed descriptively using the crosstabs function.

MAIN OUTCOME MEASURES

Barriers to the successful establishment and maintenance of breastfeeding during discharge from the neonatal intensive care unit (NICU), at discharge home, and at 1, 3, 6, and 12 months corrected age, or until weaning from breastfeeding. Changes in breastfeeding barriers across the 6 time periods were also determined.

PRINCIPAL RESULTS

At NICU discharge, low milk volume was the greatest breastfeeding barrier. During the period from discharge home and at 1 month and 3 months, the infants' compromised physical status was the largest barrier to breastfeeding. Data from the 6- and 12-month time periods indicated that the provision of complementary feeding was the greatest barrier to breastfeeding; it was most prevalent in the period following NICU discharge and before discharge home. Across all time periods, nipple and breast problems were most prevalent at NICU discharge, whereas poor technique was a barrier at 1 month. Mothers' compromised emotional status was greatest at discharge from the NICU and diminished thereafter.

CONCLUSIONS

Results from this study indicate the need to address time-period-specific barriers encountered during the breastfeeding experience of mothers of VLBW infants.

Mothers' decisions to change from formula to mothers' milk for very-low-birth-weight infants

OBJECTIVE

The purpose of this study was to examine maternal decisions about providing milk for a very-low-birth-weight (VLBW) infant, when the initial maternal intent was to formula-feed.

DESIGN

Using prospective, purposive sampling, semistructured interviews were conducted with 21 of 23 eligible mothers over a 9-month period. Audio-recorded data were transcribed verbatim, coded, categorized, and subjected to dimensional analysis.

SETTING

The study took place in a 52-bed, tertiary urban neonatal intensive-care unit.

PATIENTS/PARTICIPANTS

Mean maternal age was 26.5 years (range = 18-38), and mean infant birth weight and gestational age were 705.4 g (range = 504-1,310), and 25.8 weeks (range = 23-33), respectively. Of the 21 mothers, 76% were African American or Latina; 62% were low income.

MAIN OUTCOME MEASURES

We evaluated mothers' initial reasons for selecting formula and changing the decision to provide their milk, whether they were made to feel guilty or coerced, the processes of establishing and maintaining lactation, and breastfeeding outcomes at 1-month postbirth.

RESULTS

Mothers initially chose formula because they had no breastfeeding role models and were fearful of pain and lifestyle modifications. They changed this decision after the nurse or physician talked with them about the health benefits for their infant. Of the 21 women, all denied feeling pressured, coerced, or guilty about the decision change, and all identified rewards to themselves and their infants. All mothers provided milk for greater than or equal to 30 days, 19 went on to feed at breast, and 2 became certified breastfeeding peer counselors for the Rush Mothers' Milk Club.

CONCLUSION

These findings underscore the role of nurses and physicians in providing evidence-based information about mothers' milk and indicate that sharing this knowledge does not make mothers of VLBW infants feel pressured, coerced, or guilty.

Evaluation of a lactation support service in a children's hospital neonatal intensive care unit

Breastfeeding hospitalized infants can be difficult. The authors assessed the effectiveness of an International Board Certified Lactation Consultants (IBCLC) service to increase the proportion of infants given their own mother's milk (OMM) in a children's hospital neonatal intensive care unit (NICU). The charts of 350 randomly selected patients admitted the year before and after implementation of the service in July 1997 were abstracted. Factors significantly associated with infants being given OMM included infant sex, ethnicity, length of NICU stay, and 5-minute Apgar score. After comparison of the periods before and after program implementation, the proportion of NICU infants ever given their OMM was found to have increased from 31% to 47% (P = .002). This increase differed significantly in relation to infants' clinical status and/or management (5-minute Apgar score, length of NICU stay, and age at NICU admission) but not in relation to maternal factors. Mothers with infants in the NICU should have access to lactation counseling.

The effectiveness of primary care-based interventions to promote breastfeeding: systematic evidence review and meta-analysis for the US Preventive Services Task Force

PURPOSE

We wanted to systematically review whether primary care-based interventions improve initiation and duration of breastfeeding.

METHODS

Studies were found by searching MEDLINE (1966-2001), Health-STAR, the Cochrane Database of Systematic Reviews, the National Health Service Centre for Reviews and Dissemination Databases, and bibliographies of identified trials and review articles. Studies were included if they originated in the primary care setting and were conducted in a developed country, written in English, and contained a concurrent control group.

RESULTS

Thirty randomized and nonrandomized controlled trials and 5 systematic reviews of breastfeeding counseling were included. Educational programs had the greatest effect of any single intervention on both initiation (difference 0.23; 95% confidence interval [CI], 0.12-0.34) and short-term duration (difference 0.39; 95% CI, 0.27-0.50). Support programs conducted by telephone, in person, or both increased short-term (difference 0.11; 95% CI, 0.03-0.19) and long-term duration (difference 0.08; 95% CI, 0.02-0.16). In contrast, written materials such as pamphlets did not significantly increase breastfeeding. Data were insufficient to determine whether the combination of education with support was more effective than education alone.

CONCLUSIONS

Educational programs were the most effective single intervention. One woman would breast-feed for up to 3 months for every 3 to 5 women attending breastfeeding educational programs. Future research and policy should focus on translating these findings into more widespread practice in diverse primary care settings.