Journal of Human Lactation最新文献

Culture competence is a concept that can be traced back to health care considerations in the 1960s and 1970s, and in particular to nursing education. Critics of the concept have argued that this was not simple a listing of cultural facts, behaviors, and practices, but instead follow a more ethnographic understanding of culture. In this article, I recognize that culture is not simply about the other, but something we all possess, and is also always changing throughout our lives. Understanding and respecting diversity and culture is key to improving services, including lactation support.

Introduction: Neonatal jaundice and prematurity pose significant barriers to breastfeeding in the first days of life. There is limited literature exploring the relationship between prolonged jaundice in breastfed infants and Gilbert's (Meulengraght) syndrome. This case study describes the diagnostic and therapeutic challenges associated with Gilbert's syndrome in a late preterm breastfed infant born in Germany.

Main issue: In this case report, an infant born to a primipara woman presented at 3 weeks postpartum to an International Board Certified Lactation Consultant. The initial assessment revealed a late preterm infant with inadequate weight gain and jaundice. The dyad received breastfeeding support and eventually achieved adequate weight gain; however, the infant's jaundice persisted.

Management: The consulting midwife suggested that the persistent jaundice was "breastmilk jaundice" and recommended temporarily interrupting breastfeeding. Due to a suspected family history of Gilbert's Syndrome, the dyad was referred, instead, to a pediatric gastroenterologist. Pathologic liver disease was excluded, and genetic testing confirmed Gilbert's Syndrome. At 6 months of age, the dyad was successfully breastfeeding and beginning complementary feeding.

Conclusion: Genetic testing for Gilbert's Syndrome should be considered for infants with prolonged jaundice and positive family history. Interruption or cessation of breastfeeding are not evidence-based recommendations, and current guidelines do not support these practices. Lactation professionals play a critical role in the management of breastfeeding for preterm infants with prolonged jaundice and should refer to specialists to rule out pathologic etiologies.

Background: Human milk banks have been established to provide human milk to preterm infants who are unable to obtain milk from their mothers. Donor screening methods vary, and prospective donors are commonly screened for drug and recreational substance use through behavioral screening. Although the risk of illegal drug consumption in Japan is extremely low, caffeine may be consumed unknowingly and can be found in human milk. To date, only a few reports have been conducted on the concentration of caffeine in donor milk.

Research aim: This study aimed to examine the pre-pasteurization levels of caffeine in human milk donated to a milk bank in Japan.

Methods: This was a cross-sectional, observational study of caffeine concentrations in human milk donated to a human milk bank in Japan. Caffeine concentration in the donor milk was measured using high-performance liquid chromatography.

Results: Caffeine was detected in 70% of the donor milk samples (N = 350). The median (range) of caffeine concentration was 0.46 [< 0.10, 7.54] mg/L, and 64.0% of the samples had less than 1 mg/L of caffeine. The caffeine concentration varied widely among as well as within individuals.

Conclusion: The average caffeine concentration in Japanese donor milk samples was higher than that previously reported in samples from Spain, but the range was similar. Donors should be informed that caffeine intake should be within a moderate range, to further increase the safety of donor milk.

The remarkable world-changing growth of International Board Certified Lactation Consultants (globally over 35,000 IBCLCs in 2023), as the internationally recognized lactation professional since Chele Marmet conceptualized the field in 1977, demonstrates its importance for society and breastfeeding dyads. The early 1980s was a seminal time in the development of lactation care as a allied health field with specialized knowledge, study, and certification. Chele Marmet played a significant role as an innovator and activist during all these major changes. In this interview, she details these historic events, which she is elaborating further in her upcoming memoir.Although the terms LC and lactation professional have commonly been used to refer to those working clinically with breastfeeding families, in this article both terms refer only to the International Board Certified Lactation Consultant (IBCLC). JHL has a policy not to use the term LC (Dodgson, 2016, 2020); our rationale is that this term is currently too vague and is often misused by those with less education and experience than IBCLCs. However, we have used LC in this article at times when referring to lactation professionals prior to the development of the international board examination. This article is the second part of the interview; Part I was published in the previous JHL issue (February 2014). This interview has been transcribed with minor editing for ease of reading. (CM = Chele Marmet, JD = Joan Dodgson).

Background: Little is known about the relationship between maternal age and the macronutrient content of colostrum.

Research aims: This study aimed to evaluate the relationship between maternal age and human milk macronutrient content by comparing the concentrations of lactose, proteins, and lipids in the colostrum of women with younger, moderate, and advanced maternal age.

Methods: An observational, cross-sectional study was designed to compare the macronutrient concentrations in the colostrum of women aged < 20 years, 20 to 34 years, and > 34 years (younger, moderate, and advanced maternal age, respectively; n = 33 per group). For each participant, 3 ml of colostrum was collected by manual extraction from the right breast at 10 am, 39-48 hr after delivery, and analyzed using a Miris Human Milk Analyzer. Macronutrient concentrations were compared between the groups using analysis of variance. P < 0.05 was considered significant.

Results: Mothers with moderate maternal age had a higher colostrum lipid concentration than those with younger or advanced maternal age (2.3 mg, SD = 1.4 mg vs. 1.5 mg, SD = 1.0 mg vs. 1.6 mg, SD = 0.9 mg, respectively; p = 0.007). Lactose and protein contents in the analyzed samples did not differ among the three study groups.

Conclusion: This study lends support to the potential variation of lipids in colostrum by maternal age and suggests individual adaptation to the nutritional components of milk to the needs of the infant may be beneficial.

Background: Dysphoric Milk Ejection Reflex is an understudied condition of lactation involving emotional dysregulation during letdown or milk ejection. Affected individuals may experience transient feelings of helplessness, melancholy, and general unhappiness.

Research aim: To evaluate the scope of published literature on Dysphoric Milk Ejection Reflex.

Method: Whittemore and Knafl's methodology guided this integrative review. Five databases were searched for primary research, summaries, and editorials on Dysphoric Milk Ejection Reflex in lactating individuals. Literature searched also included websites, pamphlets, and conference proceedings via Google and Google Scholar. A total of 11 articles, from five different countries, met inclusion criteria for review.

Results: Studies on Dysphoric Milk Ejection Reflex and negative emotional sensations during lactation were synthesized under five conceptual umbrellas: (1) Experiences, Sensations, and Symptom Management; (2) Biological Underpinnings; (3) Influence on Maternal Role and Breastfeeding Self-Efficacy; (4) Support, Understanding, and Awareness; and (5) Reduction and Cessation of Breastfeeding.

Conclusion: Dysphoric Milk Ejection Reflex is a neurobiological condition characterized by low mood and negative feelings during milk ejection throughout lactation. Dysphoric Milk Ejection Reflex is linked to maternal psychological distress and breastfeeding discontinuation. Priority areas for future research include biological origins and interventions aimed at prevention, symptom control, and greater awareness of the condition on a more international scope.

Background: Mothers commonly experience pain, fatigue, sleep disruption, and breastfeeding problems after cesarean delivery. To date, no follow-up study has examined all of these variables to evaluate the utility of reflexology in reducing these problems and supporting breastfeeding.

Research aim: This study aimed to determine the effect of foot reflexology performed in the postpartum period on pain, fatigue, sleep quality, and lactation in primiparous women who underwent cesarean delivery.

Methods: This is a two-arm, parallel-group randomized controlled trial. Data were collected between January 1, 2020, and January 31, 2021, with a sample of 80 women who were randomly assigned to the reflexology (n = 40) and control (n = 40) groups. The reflexology group received 40 minutes of foot reflexology once a week for 8 weeks. The primary outcomes of the study were pain, fatigue, sleep quality, and breastfeeding efficacy.

Results: Pain scores in the reflexology group decreased by 90.9% in week 1, 90.2% in week 2, and 59.8% in week 3 compared to the control group. Pain resolved at week 4 in the reflexology group and week 7 in the control group. The reflexology group showed a 36.9% decrease in fatigue level, a 48.0% increase in energy level, a 70.7% increase in sleep quality, and a 20.2% increase in breastfeeding efficacy compared to the control group (p < 0.05).

Conclusions: Foot reflexology reduces postpartum symptoms and positively affects breastfeeding and can be used safely in postnatal care practices.