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Annals of Nursing and Practice

An Ethical Dilemma: Should Recommending Antenatal Expressing and Storing of Colostrum Continue?

Short Communication | Open Access

  • 1. International Board Certified Lactation Consultant and Fellow of the International Lactation Consultant Association, Australia
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Corresponding Authors
Sue Cox AM, International Board Certified Lactation Consultant and Fellow of the International Lactation Consultant Association, Wellington Road, 10/3 Wellington road, Lindisfarne, Tasmania, 7015, Australia, Tel: 0488109168
INTRODUCTION

Forster et al. [1], contend that the practice of recommending antenatal expressing and storing of colostrum by mothers with Type 1 diabetes should cease until its efficacy can be tested in a randomised controlled trial (RCT). This contention raises an ethical dilemma. To undertake a RCT, researchers would require a control group of mothers who would not be educated about how to express and store their colostrum. The hypoglycaemic infants of these mothers would need to be given artificial milk based on cow’s milk, with all its proven risks. An additional ethical consideration would be that midwives and other health professionals would need to decide whether or not to continue a practice that has not been proven harmful, but has immunological benefits to neonates.

In considering whether antenatal expression and storing of colostrum by pregnant Type 1 diabetic women should continue, a number of criteria need to be assessed including: the original reason for implementing the procedure; the immunological value of colostrum in preventing autoimmunity and Type 1 diabetes in the offspring; the differences in milk that women produce during pregnancy compared to colostrum; the importance of an extra glucose source for babies of hyperinsulinaemic mothers; the likelihood of nipple stimulation inducing labour; and the question of whether the women find the procedure a positive experience.

The practice of harvesting colostrum was instituted so that hypoglycaemic infants of insulin-dependent diabetic mothers would not receive cow’s milk formula in the place of colostrum as their first nutrition after birth. A number of studies have demonstrated that receiving oral fluids other than colostrum at birth carries potential life-long health risks [2-5]. Cavallo [6], and co-workers hypothesised that early exposure to cow’s milk protein triggered the gut immune system to the later development of beta-cell autoimmunity, a cellular and humoral anti-beta casein immune response that cross-reacted with a beta-cell antigen in the pancreas leading to cellular damage in the pancreas and Type 1 diabetes. On reviewing these studies, Vaarala [7], suggested that, for the prevention of Type 1 diabetes, infants with a genetic risk of diabetes should avoid treatment that will interfere with mucosal immunity, such as the early introduction of cows’ milk (CM) formula.

Colostrum is known to be the vitally important first food for all mammalian offspring. As Hanson states in Immunobiology of Human Milk:

The immune defence against potentially harmful microbes is limited, but develops very rapidly after birth. Human milk contains numerous factors that protect the baby via its mucosal membranes where the microbial exposure takes place (2004:19).

The practice of having pregnant women with Type 1 diabetes express and store their colostrum daily from 34 weeks originally began based on the knowledge that over an extended period of time (53 days), breast secretions from non-puerperal women contain comparative levels of lactose, protein and alphalactalbumin as colostrum collected over a shorter period of time [8]. Therefore, the originator of antenatal expressing and storing of colostrum believed that it would be a safe and protective fluid for a neonate who became hypoglycaemic.

Over the past ten years, the proportion of infants receiving uninterrupted skin-to-skin contact after birth has increased. This contact is especially important for babies of mothers with Type 1 diabetes. Uninterrupted skin-to-skin contact between the mother and her infant is known to enhance the metabolism of brown adipose tissue and the occurrence of gluconeogenesis and ketogenesis that decrease the likelihood of hypoglycaemia [9]. In late foetal and early neonatal life, ketone bodies and lactate levels increase as fatty acids are broken down as an alternative fuel to glucose. However, the metabolism in a baby of a mother with hyperinsulinaemia is altered and in this situation the alternative glucose source for these neonates needs to be extra colostrum. Also, clinicians suggest that — providing there is good clinical evaluation of arousal level, tone, temperature, respirations and colour — taking blood for blood glucose levels before 90 minutes in an asympytomatic neonate is unnecessary as 75–90 minutes following birth is a period when there is a normal nadir of blood glucose levels [10,11].

There is a misconception that the nipple stimulation experienced by the pregnant woman while expressing colostrum may induce premature labour. Nipple stimulation, or any other activity that is a precursor for oxytocin release including eating (particularly foods with phenyethylamines such as chocolate), kissing, hugging, masturbation and sexual intercourse will only induce labour if there are sufficient oxytocin receptors in the myometrium. Cox [12], reviewed a group of studies [13-15], in which pregnant women experienced varying but long periods of nipple stimulation (30 and 110 minutes). None of the studies showed significant effects in altering the Bishop’s score or inducing labour. Cox [12], also reviewed a study by Moscone and Moore [16], of 57 women who had continued to breastfeed during pregnancy. The infants born to these mothers were healthy and appropriate for gestational age.

In a pilot study by Forster et al. [1], 95% of insulin-dependent women with diabetes (n = 40), when questioned 6 weeks after the birth of their babies, were positive about their antenatal experience of expressing and storing their colostrum. These women asserted that they would repeat the practice in a subsequent pregnancy if it was found to be beneficial [17].

Considering that antenatal expression and storage of colostrum by pregnant Type 1 diabetic women gives their babies an extra amount of fluid that biochemically compares with colostrum if needed for hypoglycaemia, and that nipple stimulation has not been shown to induce labour, the practice should continue and women should be educated about this easy, positive and empowering practice.

REFERENCES

1. Forster DA, McEgan K, Ford R, Moorhead A, Opie G, Walker S, et al. Diabetes and antenatal milk expressing: a pilot project to inform the development of a randomised controlled trial. Midwifery. 2011; 27: 209-214.

2. Borch-Johnsen K, Joner G, Mandrup-Poulsen T, Christy M, ZachauChristiansen B, Kastrup K, et al. Relation between breast-feeding and incidence rates of insulin-dependent diabetes mellitus. A hypothesis. Lancet. 1984; 2: 1083-1086.

3. Mayer EJ, Hamman RF, Gay EC, Lezotte DC, Savitz DA, Klingensmith GJ. Reduced risk of IDDM among breast-fed children. The Colorado IDDM Registry. Diabetes. 1988; 37: 1625-1632.

4. Virtanen SM, Rasenen L, Aro A, Lindstrom J, Sippola H, Lounamaa R, et al. Infant feeding in Finnish children <7Yr of age with newly diagnosed IDDM. Diabetes. 1991; 14: 415-417.

5. Glatthar C, Whittall DE, Welborn TA, Gibson MJ, Brooks BH, Ryan MMP, et al. Diabetes in Western Australian children: descriptive epidemiology. Med J Aust. 1988; 148: 11-23.

6. Cavallo MG, Fava D, Monetini L, Barone F, Pozilli P. Cell-mediated immune response to beta casein in recent-onset insulin-dependent diabetes: implications for disease pathogenesis. Lancet. 1996; 348: 926-928.

7. Vaarala O. The role of the gut in beta-cell autoimmunity and type 1 diabetes: a hypothesis. Pediatr Diabetes. 2000; 1: 217-225.

8. Kulski JK, Hartmann PE, Saint WJ, Giles PF, Gutteridge DH. Changes in the milk composition of nonpuerperal women. Am J Obstet Gynecol. 1981; 139: 597-604.

9. Christensson K, Siles C, Moreno L, Belaustequi A, De La Fuente P, Lagercrantz H, et al. Temperature, metabolic adaptation and crying in healthy full-term newborns cared for skin-to-skin or in a cot. Acta Paediatr. 1992; 81: 488-493.

10. Alkalay AL, Sarnat HB, Flores-Sarnat L, Elashoff JD, Farber SJ, Simmons CF. Population meta-analysis of low plasma glucose thresholds in fullterm normal newborns. Am J Perinatol. 2006; 23: 115-119.

11. Wight N, Marinelli KA and the Academy of Breastfeeding Medicine Protocol Committee. ABM Clinical Protocol #1: Guidelines for glucose monitoring and treatment of hypoglycemia in breastfed neonates. 2006.

12.Cox SG. Expressing and storing colostrum antenatally for use in the newborn period. Breastfeed Rev. 2006; 14: 11-16.

13. Di Lieto A, Miranda L, Ardito P, Favale P, Albano G. Changes in the Bishop score induced by manual nipple stimulation. A cross-over randomized study. Clin Exp Obstet Gynecol. 1989; 16: 26-29.

14. Stein JL, Bardeguez AD, Verma UL, Tegani N. Nipple stimulation for labor augmentation. J Perinatol. 1990; 10: 164-166.

15. Curtis P, Resnick, JC. Evens S, Thompson CJ. A comparison of nipple stimulation and intravenous oxytocin for augmentation of labour. Birth. 1999; 26: 115-122.

16. Moscone SR, Moore MJ. Breastfeeding during pregnancy. J Hum Lact. 1993; 9: 83-88.

17. Hanson LA. Immunobiology of Human Milk, Pharmasoft Publishing, Texas, USA. Hawdon JM, Ward Platt MP, Aynsley-Green, A, 1992. Patterns of metabolic adaptation for preterm and term neonates in the first postnatal week. Arch Dis Child. 2004; 67: 357-365.

Citation

Sue Cox AM (2022) An Ethical Dilemma: Should Recommending Antenatal Expressing and Storing of Colostrum Continue? Ann Nurs Pract 9(1): 1127

Sue Cox AM (2022) An Ethical Dilemma: Should Recommending Antenatal Expressing and Storing of Colostrum Continue? Ann Nurs Pract 9(1): 1127.

Received : 15 Nov 2022
Accepted : 13 Dec 2022
Published : 16 Dec 2022
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