Analysis of research on developmentally supportive care for prematurity in neonatal intensive care unit: a scoping review

Effects of white noise on preterm infants in the neonatal intensive care unit: A meta-analysis of randomised controlled trials

AIM

To critically assess the effects of white noise on the pain level, weight gain and vital signs (heart rate, respiratory rate and oxygen saturation) of preterm infants in neonatal intensive care units (NICUs).

DESIGN

A systematic review and meta-analysis of randomised controlled trials (RCTs).

METHODS

Ten databases (PubMed, Cochrane Library, Embase, Web of Science, CINAHL, PsycINFO, SinoMed, China National Knowledge Infrastructure, VIP and Wanfang Data) were systematically reviewed from inception to July 2022. Two reviewers evaluated the risk of bias separately using the Cochrane Collaboration criteria and extracted data using a predesigned information form.

RESULTS

The meta-analysis included eight eligible RCTs. According to statistical analysis, white noise significantly affected the pain level, weight gain, heart rate, respiratory rate and oxygen saturation in preterm infants. Regardless of the outcome measurement timing, gestational age and birth weight of preterm infants, subgroup analysis demonstrated that white noise reduced the pain level, heart rate and respiratory rate and promoted weight gain in preterm infants in NICUs.

CONCLUSION

White noise is a practical and potentially useful therapy for premature neonates in NICUs. No Patient or Public Contribution.

Effectiveness of Nicu nurses' competence enhancement program for developmentally supportive care for preterm infants: A quasi-experimental study

Background

Developmental support care for preterm infants contributes toward their health and shortens their hospital stay. In many countries, programs for preterm infant development such as Newborn Individualized Developmental Care and Assessment Program and Philips Wee Care have not yet been disseminated.

Objectives

To evaluate the effectiveness of neonatal intensive care unit nurses' competence enhancement program for developmental support care of preterm infants.

Methods

A quasi-experimental study using pretest and posttest designs with a nonequivalent control group was conducted in five neonatal intensive care units of university hospitals in South Korea. A total of 39 nurses (20 in the experimental group and 19 in the control group) participated. The program was composed of family support, healing environmental support, stress and pain management, sleep support, position support, nutrition optimization, skin protection, and sensory stimulation. In addition, four sessions were provided using Zoom, Padlet, online quizzes, and performance diaries.

Results

For nursing knowledge, no significant interaction effect was observed between groups and time (F = 1.38, p = .258). However, the main effect on the group (F = 10.81, p < .001), and the main effect of time were significant (F = 12.97, p < .001). For nursing attitude, the interaction effect between group and time (F = 2.06, p = .142), and the main effect on the group were not significant (F = 0.23, p = .635). Finally, for nursing competence, the interaction effect between group and time was significant (F = 4.46, p = .019).

Conclusions

The educational program was effective in improving nursing knowledge and competence in developmentally supportive care for preterm infants. This program is expected to contribute toward the growth and development of premature infants.

Exploring Effect of Postdischarge Developmental Support Program on Preterm Infant Neurodevelopment and BDNF Gene DNA Methylation

BACKGROUND

Although developmental supportive care is an effective approach to improve the long-term psychomotor and/or neurobehavioral function of preterm infants, very limited studies have focused on the impact of after-discharge developmental support. The underlying epigenetic changes are unclear.

PURPOSE

This study aimed to explore the preliminary effect of an evidence-based Postdischarge Developmental Support Program (PDSP) on preterm infant neurodevelopment and underlying epigenetic changes, including brain-derived neurotrophic factor (BDNF) gene-related DNA methylation and expression.

METHODS

In this randomized controlled pilot trial, the preterm infant-parent dyads were randomized into either the intervention group/PDSP group (n = 22) or the control group/usual care group (n = 22). The neurodevelopmental outcomes of preterm infants were measured by Ages & Stages Questionnaires. Urine BDNF concentration level was tested by the enzyme-linked immunosorbent assay. Infant saliva specimens were collected to analyze the methylation level of BDNF gene promoter I at pre- and postintervention test.

RESULTS

After PDSP intervention, the total neurodevelopmental and the 5 domain scores of the PDSP group were all significantly higher than those of the control group ( P < .05). The BDNF levels decreased significantly only within control group ( P = .01). The difference in BDNF concentration and methylation levels between groups was not statistically significant.

IMPLICATIONS FOR PRACTICE AND RESEARCH

Postdischarge Developmental Support Program may promote the neurodevelopment of preterm infants but has no effect on BDNF's expression and gene methylation level at 3 months of corrected age. The epigenetic mechanism of PDSP needs further study using a larger sample and longer follow-up.