The effect of oropharyngeal colostrum administration on the clinical outcomes of premature infants: A meta-analysis

Implementing a colostrum-kit reduces the time to first colostrum for neonates admitted to the NICU - a retrospective observational study

BACKGROUND

The World Health Organisation states that newborns should receive colostrum as soon as possible after birth. However, among newborns needing neonatal intensive care, initiation of lactation and access to colostrum might be delayed. At the centre of this study, a tertiary care hospital in Sweden (10,000 deliveries/year), few admitted infants received colostrum within the day of birth, warranting a quality improvement. In order to reduce the time from birth to first colostrum received by infants admitted to the Neonatal Intensive Care Unit (NICU), a new clinical routine including a colostrum-kit, was implemented as standard care in June 2018. The colostrum-kit contained information about hand expression of breastmilk as well as material for collecting, labelling and transporting the colostrum. The kit should be handed to all birthing parents with infants admitted to the NICU.

METHODS

Data on time in minutes from birth to first colostrum administered to the infant (oral mouth care, oral feeding or gavage feeding) was retrieved for all infants born between 1 September 2016 and 31 October 2023, admitted to the NICU within 1h from birth. Infants were divided into four time-cohorts, compared with nonparametric ANOVA.

RESULTS

The study included 3618 infants born at 22 + 0 - 43 + 0 weeks gestational age, of whom 2814 (78%) had available data on time to colostrum. Median (IQR) time in hours was 35 (20-36) pre-implementations, followed by 18 (7-38), 11 (4-26) and 8 (3-22) in the subsequent follow-up cohorts, p < 0.001. Subgroups of mode of delivery had median (IQR) pre-implementation of 30 (19-54) for vaginal and 47 (23-72) for caesarean section that reached 7 (2-18) and 9 (3-26) in the last follow-up. Subgroups of gestational age (< 28, 28-31, 32-36, > 36 weeks) had a pre-implementation time of 48 (26-80), 46 (23-73), 33 (20-60) and 32 (19-57), that in the last follow-up was reduced to 4 (2-20), 7 (2-29), 9 (2-33) and 9 (4-19).

CONCLUSIONS

Implementing a colostrum-kit for infants admitted to the NICU significantly reduced the time to first colostrum administered to the infant in all gestational ages. The difference between subgroups of gestational age or mode of delivery was reduced. The effect persisted over time.

Oral Care Performed with Breast Milk in Preterm Newborns Fed by Tube: A Randomized Controlled Study

Objective: This study examined the effect of breast milk on oral care practices in neonatal intensive care units. Methods: This study involved 64 preterm infants (intervention/breast milk: 32, control/distilled water: 32) and was carried out with a prospective, parallel, randomized controlled design. The "Newborn Oral Health Assessment Tool (NOHAT)" was used to assess oral care. The Mann-Whitney U test, continuity correction test, Fisher's exact test, independent-samples T test, and Wilcoxon signed ranks test were used to analyze the data. Results: Examining the oral care performed using breast milk and distilled water with NOHAT scores, it was determined that there was a significant difference in the intervention group (p < 0.05). Conclusions: It is recommended to use breast milk for oral care.

Incidence and factors influencing delayed onset of lactation: a systematic review and meta-analysis

BACKGROUND

Breastfeeding has many benefits for mothers and infants. Lactogenesis II is one of the key steps in the implementation of breastfeeding. If lactogenesis II occurs more than 72 h after delivery, it is termed delayed onset of lactation (DOL). DOL is associated with decreased milk production, shortened breastfeeding time, and pathological neonatal weight loss. A comprehensive summary of the incidence and factors influencing DOL is needed to provide a basis for improving breastfeeding practices and health outcomes.

METHODS

Studies on the incidence and factors influencing DOL were retrieved from 13 Chinese and English databases (PubMed, Embase, Web of Science, Cochrane Library, CINAHL, etc.) from database inception to August 2023. Two researchers independently conducted the study screening, data extraction and quality evaluation. Stata 16.0 SE software was used for data analysis, and sensitivity analysis and publication bias tests were also performed. The qualitative description method was used to analyse studies that could not be combined quantitatively.

RESULTS

A total of 35 studies involving 19,176 parturients, including 4,922 who had DOL, were included. The mean Newcastle‒Ottawa scale score of the included studies was ≥ 6, indicating that the quality was relatively high. Finally, the incidence of DOL was 30%, and 13 factors influencing DOL with robust results and no publication bias were obtained: prepregnancy body mass index (overweight or obesity), gestational diabetes, gestational hypertension, thyroid disease during pregnancy, serum albumin levels (< 35 g/L), parity, (unscheduled) caesarean section, caesarean section history, daily sleep duration, gestational age, birth weight (< 2.5 kg), breastfeeding guidance and daily breastfeeding frequency. However, there were still six influencing factors with undetermined associations: age, gestational weight gain, birth weight (≥ 4 kg), anxiety, time of first breastfeeding session (maternal separation) and breast massage or treatment.

CONCLUSIONS

The incidence of DOL is high. Clinicians should pay attention to parturients at high risk of DOL and formulate targeted prevention strategies according to the influencing factors to reduce the occurrence of DOL and promote better maternal and infant outcomes.

TRIAL REGISTRATION

PROSPERO (ID: CRD42023458786), September 10, 2023.

Differential Abundances of Bdellovibrio and Rheinheimera in the Oral Microbiota of Neonates With and Without Clinical Sepsis

BACKGROUND

Neonatal sepsis is associated with high rates of morbidity and mortality, long hospital stays and high cost of care, thereby inflicting a burden on health care systems. Oral care with breast milk has been shown to modify the intestinal tract microbiota and immune system. Herein, we attempted to identify probiotics that may be beneficial to prevent or treat neonatal sepsis.

METHODS

This was a secondary analysis comparing the microbiota during oropharyngeal care in very-low-birth-weight infants with and without clinical sepsis. Oral samples were collected before oral feeding was initiated. The primary outcome was oral microbiota composition including diversity, relative abundance and linear discriminant analysis effect size.

RESULTS

Sixty-three neonates, including 39 and 24 with and without clinical sepsis, respectively, were enrolled. The medians gestational age and birth weight were 29 (27-30) weeks and 1010 (808-1263) g. Neonates with clinical sepsis had lower gestational age, birth weight (both P < 0.001) and lower rate of oral care with breast milk ( P = 0.03), but higher doses and days of antibiotic exposure (both P < 0.001) compared to neonates without clinical sepsis. No differences in alpha and beta diversities were found between groups and Streptococcus agalactiae was the most common bacteria in both groups. Linear discriminant analysis effect size analysis revealed that neonates without clinical sepsis had significantly higher abundances of order Bdellovibrionales, family Bdellovibrionaceae, genus Bdellovibrio and genus Rheinheimera .

CONCLUSIONS

Neonates without clinical sepsis had a significantly greater abundance of the Bdellovibrio and Rheinheimera genera.

Short-Term Outcomes of Early Oral Colostrum Administration in VLBW Neonates: An Open-Label Randomized Controlled Trial

Background

Oropharyngeal colostrum priming (OCP) has been proposed as a potential nutritional option for very low birth weight (VLBW) newborns. This study aimed to determine short-term outcomes of early oral colostrum administration in VLBW neonates.

Methods

This open-label randomized controlled trial was conducted on VLBW neonates admitted to Mahdieh Hospital, Tehran, Iran, between February and December 2022. According to the protocol, all eligible neonates were randomized evenly to the intervention group, which received oral colostrum (OC), and the control group, which received no OC. Finally, short-term outcomes of early OC administration were compared between groups using the independent-samples t test, chi-square, and Fisher exact tests.

Results

Of 80 randomized neonates, 37 and 39 from the intervention and control groups entered the final analysis, respectively. Neonates in the intervention and control groups did not significantly differ in terms of peripherally inserted central catheter (PICC) infection (P = 0.728), sepsis (P = 0.904), necrotizing enterocolitis (NEC) (P > 0.999), intraventricular hemorrhage (IVH) (P = 0.141), retinopathy of prematurity (ROP) (P = 0.923), and bronchopulmonary dysplasia (BPD) (P = 0.633). Furthermore, there was no significant difference between groups considering the time to reach 120 cc/kg feeds (P = 0.557), time to reach birth weight (P = 0.157), length of hospitalization (P = 0.532), and mortality rate (P = 0.628).

Conclusion

The results of our study revealed that despite safety, early OC administration did not improve any of the short-term outcomes in VLBW neonates.

Oropharyngeal colostrum immunotherapy and risk reduction of mortality in very low birth weight premature newborns: a clinical trial

OBJECTIVE

To evaluate the effect of oropharyngeal colostrum immunotherapy (OCI) on the mortality of preterm newborns (PTNB) with very low birth weight (VLBW).

METHOD

Non-randomized clinical trial, carried out with 138 mother-child pairs attended at a public maternity hospital. The treatment group used raw colostrum, dripping 4 drops (0.2 ml) into the oropharyngeal mucosa, totaling 8 administrations in 24 h, up to the 7th complete day of life (OCI). The control group was composed of newborns admitted to the same maternity hospital before the implementation of the OCI. Analyzes were performed: descriptive, bivariate, multiple logistic regression, and survival analysis, with a significance level of 5% and 95% CI.

RESULTS

The treatment group had an RR of death of 0.26 (95% CI = 0.07-0.67; p = 0.00), adjusted for maternal age, marital status, gestational hypertension, type of delivery, number of prenatal visits, and birth weight. Number Needed to Treat (NNT) demonstrated that for every 5 individuals treated with OCI, one death was prevented NNT = 4.9 (95% CI = 1.84-5.20); however, for PTNB with VLBW who remained hospitalized for 50, 100 and 150 days, the NNT reduces to 4, 4 and 3, respectively.

CONCLUSION

The OCI proved to be a beneficial intervention, since it reduced the risk of mortality in PTNB with VLBW when compared to the control group.