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Jamehdar M, Nourizadeh R, Divband A, Valizadeh L, Hosseini M, Hakimi S. KMC by surrogate can have an effect equal to KMC by mother in improving the nutritional behavior and arterial oxygen saturation of the preterm infant: results of a controlled randomized clinical trial. BMC Pediatr 2022; 22:242. [PMID: 35501762 PMCID: PMC9059395 DOI: 10.1186/s12887-022-03316-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 04/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the effect of kangaroo mother care (KMC) by mother and her surrogate on nutritional behavior and physiological function of preterm neonates. METHOD This study was a randomized, controlled clinical trial conducted on 70 preterm infants admitted to the NICU. For the neonates of the intervention group, KMC was performed (by mother and surrogate) 3 times a day and the neonates of the control group received KMC by the mother 3 times a day for up to 4 days and 60 minutes each time. The primary outcome was to compare the effect of KMC by mother and surrogate on the feeding behavior measured by preterm infant breastfeeding behavior scale (PIBBS), and the secondary outcome was to compare the effect of KMC by mother and surrogate on physiological outcomes. RESULT The score of the PIBBS in both groups increased significantly during 4 days, this difference was not significant between the groups. [Adjusted mean difference (95% Confidence interval), 0.66 (- 2.36 to 1.03), P = 0.438]. Within the group, among the physiological functions, only O2 saturation had significantly increased during the study. This increase, however, was not statistically different between the two groups. [Adjusted mean difference (95% Confidence interval), 0.102 (- 0.68 to 0.88), P = 0.761]. CONCLUSION When the mother is unable to provide this type of care, it can be provided by the surrogate that is as effective as the mother in improving arterial oxygen saturation and the feeding behavior of the preterm neonates. TRIAL REGISTRATION IRCT20150424021917N10 . Registered 22/04/ 2020.
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Affiliation(s)
- Mahboubeh Jamehdar
- Student’s Research Committee School of Nursing and Midwifery, Tabriz University of Medical Science, Tabriz, Iran
| | - Roghaiyeh Nourizadeh
- Faculty of Nursing and Midwifery, Tabriz University of Medical Science, Tabriz, Iran
| | - Aboulhassan Divband
- Faculty of medicine, Hormozgan University of Medical Science, Bandar Abbas, Iran
| | - Leila Valizadeh
- Faculty of Nursing and Midwifery, Tabriz University of Medical Science, Tabriz, Iran
| | | | - Sevil Hakimi
- Faculty of Nursing and Midwifery, Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Science, Shariati Street, 5138947-, Tabriz, 977 Iran
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Evaluation of the Effects of Skin-to-Skin Contact on Newborn Sucking, and Breastfeeding Abilities: A Quasi-Experimental Study Design. Nutrients 2022; 14:nu14091846. [PMID: 35565813 PMCID: PMC9101996 DOI: 10.3390/nu14091846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 12/04/2022] Open
Abstract
Mother and newborn skin-to-skin contact (SSC) after birth has numerous protective effects. Although positive associations between SSC and breastfeeding behavior have been reported, the evidence for such associations between early SSC and breastfeeding success was limited in high-income countries. This quasi-experimental intervention design study aimed to evaluate the impact of different SSC regimens on newborn breastfeeding outcomes in Taiwan. In total, 104 healthy mother–infant dyads (52 in the intervention group and 52 in the control group) with normal vaginal delivery were enrolled from 1 January to 30 July 2019. The intervention group received 60 min of immediate SSC, whereas the control group received routine care (early SSC with 20 min duration). Breastfeeding performance was evaluated by the IBFAT and BSES-Short Form. Generalized estimating equations (GEEs) were used to evaluate the effectiveness of the intervention. In the intervention group, the breastfeeding ability of newborns increased significantly after 5 min of SSC and after SSC. The intervention also improved the total score for breastfeeding self-efficacy (0.18 point; p = 0.003). GEE analysis revealed that the interaction between group and time was significant (0.65 point; p = 0.003). An initial immediate SSC regimen of 60 min can significantly improve neonatal breastfeeding ability and maternal breastfeeding self-efficacy in the short term after birth.
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Takahashi Y, Uvnäs-Moberg K, Nissen E, Lidfors L, Ransjö-Arvidson AB, Jonas W. Epidural Analgesia With or Without Oxytocin, but Not Oxytocin Alone, Administered During Birth Disturbs Infant Pre-feeding and Sucking Behaviors and Maternal Oxytocin Levels in Connection With a Breastfeed Two Days Later. Front Neurosci 2021; 15:673184. [PMID: 34267623 PMCID: PMC8276259 DOI: 10.3389/fnins.2021.673184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 04/27/2021] [Indexed: 11/13/2022] Open
Abstract
Aims This work aimed to study consequences of medical interventions in connection with birth on infant pre-feeding and feeding behaviors and on maternal oxytocin levels in connection with a breastfeed 2 days later. Materials and Methods Mothers and their full-term newborns (n = 41) were videotaped during a breastfeed 2 days after birth. Duration and quality of rooting [Infant Breastfeeding Assessment Tool (IBFAT)] were assessed. Maternal blood samples were collected, oxytocin levels were analyzed, and mean oxytocin level and variance were calculated. Data on medical interventions during birth, number of breastfeedings, and infant weight loss since birth were recorded. Data were analyzed using logistic regression models. Results The duration of infant rooting was significantly shorter when the mother had received epidural analgesia. The shorter the duration of infant rooting, the more often infants had breastfed and the greater was the infant weight loss since birth. Mothers with epidural analgesia with oxytocin had the lowest oxytocin mean levels in connection with a breastfeed. Oxytocin variance correlated positively with quality of rooting and correlated negatively with infant weight loss. In the control group alone, we found similar patterns of associations with oxytocin levels. Conclusion Epidural analgesia and epidural analgesia with oxytocin infusion in connection with birth negatively influenced infant rooting behavior and maternal mean oxytocin levels, respectively. Oxytocin infusion alone was without effect. The data also suggest that infants who suck well stimulate oxytocin release more efficiently, as expressed by a high oxytocin variance, leading to a better stimulation of milk production and consequently to a reduced infant weight loss 2 days after birth.
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Affiliation(s)
- Yuki Takahashi
- Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kerstin Uvnäs-Moberg
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Skara, Sweden
| | - Eva Nissen
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Lena Lidfors
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Skara, Sweden
| | | | - Wibke Jonas
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
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Norholt H. Delivering Clinically on Our Knowledge of Oxytocin and Sensory Stimulation: The Potential of Infant Carrying in Primary Prevention. Front Psychol 2021; 11:590051. [PMID: 33995157 PMCID: PMC8116555 DOI: 10.3389/fpsyg.2020.590051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/16/2020] [Indexed: 11/18/2022] Open
Abstract
Oxytocin (OT) is one of the most intensively researched neuropeptides during the three past decades. In benign social contexts, OT exerts a range of desirable socioemotional, stress-reducing, and immunoregulatory effects in mammals and humans and influences mammalian parenting. Consequentially, research in potential pharmacological applications of OT toward human social deficits/disorders and physical illness has increased substantially. Regrettably, the results from the administration of exogenous OT are still relatively inconclusive. Research in rodent maternal developmental programming has demonstrated the susceptibility of offspring endogenous OT systems to maternal somatosensory stimulation, with consequences for behavioral, epigenetic, cognitive, and neurological outcomes. A translation of this animal research into practically feasible human parenting recommendations has yet to happen, despite the significant prevention potential implied by the maternal developmental programming research. Extended physical contact with full-term healthy infants in the months following birth (infant carrying) might constitute the human equivalent of those specific rodent maternal behaviors, found to positively influence emerging OT systems. Findings from both OT and maternal programming research parallel those found for infants exposed to such extended parental physical contact, whether through skin-to-skin contact or infant carrying. Clinical support of parents to engage in extended physical contact represents a feasible intervention to create optimum conditions for the development of infant OT systems, with potential beneficial long-term health effects.
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Affiliation(s)
- Henrik Norholt
- SomAffect - The Somatosensory & Affective Neuroscience Group, Liverpool, United Kingdom
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Moberg KU, Handlin L, Petersson M. Neuroendocrine mechanisms involved in the physiological effects caused by skin-to-skin contact – With a particular focus on the oxytocinergic system. Infant Behav Dev 2020; 61:101482. [DOI: 10.1016/j.infbeh.2020.101482] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 07/30/2020] [Accepted: 08/04/2020] [Indexed: 10/23/2022]
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Almanza-Sepulveda ML, Fleming AS, Jonas W. Mothering revisited: A role for cortisol? Horm Behav 2020; 121:104679. [PMID: 31927022 DOI: 10.1016/j.yhbeh.2020.104679] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/31/2019] [Accepted: 01/03/2020] [Indexed: 12/26/2022]
Abstract
This selective review first describes the involvement of the maternal hypothalamic-pituitary-adrenal (HPA) axis during pregnancy and the postpartum period, and the relation between peripartum HPA axis function and maternal behavior, stress reactivity and emotional dysregulation in human mothers. To provide experimental background to this correlational work, where helpful, animal studies are also described. It then explores the association between HPA axis function in mothers and their infants, under ongoing non-stressful conditions and during stressful challenges, the moderating role of mothers' sensitivity and behavior in the mother-child co-regulation and the effects of more traumatic risk factors on these relations. The overarching theme being explored is that the HPA axis - albeit a system designed to function during periods of high stress and challenge - also functions to promote adaptation to more normative processes, shown in the new mother who experiences both high cortisol and enhanced attraction and attention to and recognition of, their infants and their cues. Hence the same HPA system shows positive relations with behavior at some time points and inverse ones at others. However, the literature is not uniform and results vary widely depending on the number, timing, place, and type of samplings and assessments, and, of course, the population being studied and, in the present context, the state, the stage, and the stress levels of mother and infant.
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Affiliation(s)
- Mayra L Almanza-Sepulveda
- Department of Psychology, University of Toronto at Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada
| | - Alison S Fleming
- Department of Psychology, University of Toronto at Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada.
| | - Wibke Jonas
- Department of Women's and Children's Health, Karolinska Institutet, Widerströmska Huset, Tomtebodavägen 18a, 171 77 Stockholm, Sweden.
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Uvnäs Moberg K, Handlin L, Kendall-Tackett K, Petersson M. Oxytocin is a principal hormone that exerts part of its effects by active fragments. Med Hypotheses 2019; 133:109394. [PMID: 31525634 DOI: 10.1016/j.mehy.2019.109394] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/17/2019] [Accepted: 09/05/2019] [Indexed: 12/31/2022]
Abstract
Oxytocin is a nonapeptide consisting of a cyclic six amino-acid structure and a tail of three amino acids. It was originally known for its ability to induce milk ejection and to stimulate uterine contractions. More recently, oxytocin has been shown to stimulate social behaviors, and exert pain-relieving, anti-stress/anti-inflammatory and restorative effects. We hypothesize that oxytocin is a principal hormone that, in part, exerts its effects after degradation to active fragments with more specific effect profiles. Experimental findings on rats show that administered oxytocin exerts biphasic effects. For example, after an initial increase in pain threshold, a second more long-lasting increase follows. Blood pressure and cortisol levels initially increase and then reverse into a long-lasting decrease in blood pressure and cortisol. Whereas the initial effects are, the second-phase effects are not blocked by an oxytocin antagonist, but by an opioid mu-antagonist and by an alpha 2-adrenoreceptor antagonist, respectively, suggesting that other receptors are involved. Repeated administration of oxytocin induces multiple anti-stress effects, which are mediated by alpha 2-adrenoreceptors. Repeated administration of linear oxytocin and linear oxytocin fragments with a retained C-terminal reduce spontaneous motor activity, a sedative or anti-stress effect, suggesting that alpha 2-adrenoreceptors have been activated. In contrast, linear mid-fragments stimulate motor activity. Low-intensity stimulation of cutaneous nerves in rats, as well as breastfeeding and skin-to-skin contact between mothers and babies, trigger immediate anti-stress effects. Some of these effects are likely caused by open ring/linear C-terminal fragments activating alpha 2-adrenoreceptors. Oxytocin fragments may be pre-formed and released in the brain or created by metabolic conversion of the principal hormone oxytocin in the central nervous system. Oxytocin and its fragments may also be released from peripheral sites, such as peripheral nerves, the gastrointestinal tract, and blood vessels in response to decreased sympathetic or increased parasympathetic nervous tone. Smaller fragments of oxytocin produced in the periphery may easily pass the blood-brain barrier to induce effects in the brain. In conclusion, oxytocin is linked to many different, sometimes opposite effects. The intact cyclic molecule may act to initiate social interaction and associated psychophysiological effects, whereas linear oxytocin and C-terminal fragments may induce relaxation and anti-stress effects following social interaction. In this way, the principal hormone oxytocin and its fragments may take part in a behavioral sequence, ranging from approach and interaction to calm and relaxation. Linear fragments, with an exposed cysteine-residue, may exert anti-inflammatory and antioxidant effects and thereby contribute to the health-promoting effects of oxytocin.
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Affiliation(s)
- Kerstin Uvnäs Moberg
- Department of Animal Environment and Health, Swedish University of Agricultural Sciences, Skara, Sweden
| | - Linda Handlin
- School of Health and Education, University of Skövde, Sweden.
| | | | - Maria Petersson
- Department of Molecular Medicine and Surgery, Endocrine and Diabetes Unit, Karolinska Institutet, Sweden
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Uvnäs-Moberg K, Ekström-Bergström A, Berg M, Buckley S, Pajalic Z, Hadjigeorgiou E, Kotłowska A, Lengler L, Kielbratowska B, Leon-Larios F, Magistretti CM, Downe S, Lindström B, Dencker A. Maternal plasma levels of oxytocin during physiological childbirth - a systematic review with implications for uterine contractions and central actions of oxytocin. BMC Pregnancy Childbirth 2019; 19:285. [PMID: 31399062 PMCID: PMC6688382 DOI: 10.1186/s12884-019-2365-9] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 06/17/2019] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Oxytocin is a key hormone in childbirth, and synthetic oxytocin is widely administered to induce or speed labour. Due to lack of synthetized knowledge, we conducted a systematic review of maternal plasma levels of oxytocin during physiological childbirth, and in response to infusions of synthetic oxytocin, if reported in the included studies. METHODS An a priori protocol was designed and a systematic search was conducted in PubMed, CINAHL, and PsycINFO in October 2015. Search hits were screened on title and abstract after duplicates were removed (n = 4039), 69 articles were examined in full-text and 20 papers met inclusion criteria. As the articles differed in design and methodology used for analysis of oxytocin levels, a narrative synthesis was created and the material was categorised according to effects. RESULTS Basal levels of oxytocin increased 3-4-fold during pregnancy. Pulses of oxytocin occurred with increasing frequency, duration, and amplitude, from late pregnancy through labour, reaching a maximum of 3 pulses/10 min towards the end of labour. There was a maximal 3- to 4-fold rise in oxytocin at birth. Oxytocin pulses also occurred in the third stage of labour associated with placental expulsion. Oxytocin peaks during labour did not correlate in time with individual uterine contractions, suggesting additional mechanisms in the control of contractions. Oxytocin levels were also raised in the cerebrospinal fluid during labour, indicating that oxytocin is released into the brain, as well as into the circulation. Oxytocin released into the brain induces beneficial adaptive effects during birth and postpartum. Oxytocin levels following infusion of synthetic oxytocin up to 10 mU/min were similar to oxytocin levels in physiological labour. Oxytocin levels doubled in response to doubling of the rate of infusion of synthetic oxytocin. CONCLUSIONS Plasma oxytocin levels increase gradually during pregnancy, and during the first and second stages of labour, with increasing size and frequency of pulses of oxytocin. A large pulse of oxytocin occurs with birth. Oxytocin in the circulation stimulates uterine contractions and oxytocin released within the brain influences maternal physiology and behaviour during birth. Oxytocin given as an infusion does not cross into the mother's brain because of the blood brain barrier and does not influence brain function in the same way as oxytocin during normal labour does.
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Affiliation(s)
| | - Anette Ekström-Bergström
- School of Health and Education, University of Skövde, Skövde, Sweden
- Department of Health Sciences, University West, Trollhättan, Sweden
| | - Marie Berg
- Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden
- Centre for Person-Centred Care, University of Gothenburg, Gothenburg, Sweden
| | - Sarah Buckley
- School of Public Health, The University of Queensland, Brisbane, Australia
| | - Zada Pajalic
- Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - Eleni Hadjigeorgiou
- Faculty of Health Sciences, Cyprus, University of Technology, Limassol, Cyprus
| | - Alicja Kotłowska
- Faculty of Health Sciences with Subfaculty of Nursing and Institute of Maritime and Tropical Medicine, Medical University of Gdańsk, Gdańsk, Poland
| | - Luise Lengler
- Midwifery Research and Education Unit, Hannover Medical School, Hannover, Germany
| | | | - Fatima Leon-Larios
- Faculty of Nursing, Physiotherapy and Podiatry, University of Seville, Seville, Spain
| | - Claudia Meier Magistretti
- Department of Social Work Center for Health Promotion and Social Participation, Lucerne University of Applied Sciences and Arts, Luzern, Switzerland
| | - Soo Downe
- Research in Childbirth and Health (ReaCH) group, University of Central Lancashire, Preston, UK
| | - Bengt Lindström
- Norwegian University of Science and Technology, Trondheim, Norway
| | - Anna Dencker
- Institute of Health and Care Sciences, University of Gothenburg, Gothenburg, Sweden
- Centre for Person-Centred Care, University of Gothenburg, Gothenburg, Sweden
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Lu P, Ye ZQ, Qiu J, Wang XY, Zheng JJ. Acupoint-tuina therapy promotes lactation in postpartum women with insufficient milk production who underwent caesarean sections. Medicine (Baltimore) 2019; 98:e16456. [PMID: 31464890 PMCID: PMC6736488 DOI: 10.1097/md.0000000000016456] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Breast milk is recognized and strongly recommended by the World Health Organization (WHO) as the optimal feeding for all babies. Breastfeeding is associated with better nutritional and non-nutritional outcomes when compared to formula feeding, and has proven health benefits to both infants and their mothers. This clinical research is to examine the feasibility and efficacy of Acupoint-Tuina therapy in treating postpartum women who underwent C-sections and suffered from insufficient milk production.The patients in the control group received standard medical care, while the patients in the Tuina group received Tuina therapy during the next 48 hours in addition to standard care, given once daily for 2 days. To evaluate the efficacy of Tuina therapy, patients of both groups were assessed for surface temperature of breasts, volume of breasts, volume of breast milk production, serum PRL level, and uterus recovery at various time points.Tuina therapy significantly increased the milk production when compared to the control group, for as much as 13-fold and 10-fold of that in the control group on the third and fourth postpartum days. In addition, Tuina therapy also significantly increased the full breast enlargement and the serum PRL level change, and decreased the breast surface temperature rise. Last but not the least, Tuina therapy also accelerated the post-surgery recovery of uterus.During the early postpartum days, Tuina therapy increases the milk production and promotes other physiological changes supporting lactation for postpartum women with C-section delivery and insufficient breast milk production. The novel intervention is warranted for further investigation and validation.
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Affiliation(s)
- Ping Lu
- Teaching and Research Office of Basic Tuina Science, Shanghai University of Traditional Chinese Medicine School of Acupuncture-Moxibustion and Tuina, Shanghai
| | - Zhi-qi Ye
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine
| | - Jin Qiu
- Shanghai Tenth People's Hospital, Tenth People's Hospital of TongJi University
| | | | - Juan-juan Zheng
- Teaching and Research Office of Basic Tuina Science, Shanghai University of Traditional Chinese Medicine School of Acupuncture-Moxibustion and Tuina, Shanghai
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Effect of Timing of the First Bath on a Healthy Newborn's Temperature. J Obstet Gynecol Neonatal Nurs 2018; 47:608-619. [PMID: 30096281 DOI: 10.1016/j.jogn.2018.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2018] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To determine if a healthy newborn's age in hours (3, 6, or 9 hours after birth) affects thermoregulatory status after the first bath as indicated by axillary and skin temperatures. DESIGN Quasi-experimental, mixed-model (between subjects and within subjects) design with hours of age as the nonrepeated variable and prebath and postbath temperatures as the repeated variables. SETTING Family-centered care unit at an urban hospital in the southwestern United States. PARTICIPANTS Healthy newborns (N = 75) 37 weeks or more completed gestation. METHODS Mothers chose time of first bath based on available time slots (n = 25 newborns in each age group). Research nurses sponge bathed the newborns in the mothers' rooms. Axillary temperature, an index of core temperature, was measured with a digital thermometer, and skin temperature, an index of body surface temperature, was measured with a thermography camera. Temperatures were taken before the bath; immediately after the bath; and 5, 30, 60, and 120 minutes after the bath. Immediately after the bath, newborns were placed in skin-to-skin care (SSC) for 60 or more minutes. RESULTS We found a difference (p = .0372) in axillary temperatures between the 3- and 9-hour age groups, although this difference was not clinically significant (0.18 °F [0.10 °C]). We found no statistically significant differences in skin temperatures among the three age groups. Regardless of age group, axillary and skin temperatures initially decreased and then recovered after the bath. CONCLUSION For up to 2 hours postbath, axillary and skin temperatures were not different between healthy newborns bathed at 3, 6, or 9 hours of age. Thermography holds promise for learning about thermoregulation, bathing, and SSC.
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McCall EM, Alderdice F, Halliday HL, Vohra S, Johnston L. Interventions to prevent hypothermia at birth in preterm and/or low birth weight infants. Cochrane Database Syst Rev 2018; 2:CD004210. [PMID: 29431872 PMCID: PMC6491068 DOI: 10.1002/14651858.cd004210.pub5] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
BACKGROUND Newborn admission temperature is a strong predictor of outcomes across all gestations. Hypothermia immediately after birth remains a worldwide issue and, if prolonged, is associated with harm. Keeping preterm infants warm is difficult even when recommended routine thermal care guidelines are followed in the delivery room. OBJECTIVES To assess the efficacy and safety of interventions designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room, compared with routine thermal care or any other single/combination of intervention(s) also designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room. SEARCH METHODS We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 5), MEDLINE via PubMed (1966 to 30 June 2016), Embase (1980 to 30 June 2016), and CINAHL (1982 to 30 June 2016). We also searched clinical trials databases, conference proceedings, and reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials. SELECTION CRITERIA Trials using randomised or quasi-randomised allocations to test interventions designed to prevent hypothermia (apart from 'routine' thermal care) applied within 10 minutes after birth in the delivery room for infants at < 37 weeks' gestation and/or birth weight ≤ 2500 grams. DATA COLLECTION AND ANALYSIS We used Cochrane Neonatal methods when performing data collection and analysis. MAIN RESULTS Twenty-five studies across 15 comparison groups met the inclusion criteria, categorised as: barriers to heat loss (18 studies); external heat sources (three studies); and combinations of interventions (four studies).Barriers to heat loss Plastic wrap or bag versus routine carePlastic wraps improved core body temperature on admission to the neonatal intensive care unit (NICU) or up to two hours after birth (mean difference (MD) 0.58°C, 95% confidence interval (CI) 0.50 to 0.66; 13 studies; 1633 infants), and fewer infants had hypothermia on admission to the NICU or up to two hours after birth (typical risk ratio (RR) 0.67, 95% CI 0.62 to 0.72; typical risk reduction (RD) -0.25, 95% CI -0.29 to -0.20; number needed to treat for an additional beneficial outcome (NNTB) 4, 95% CI 4 to 5; 10 studies; 1417 infants). Risk of hyperthermia on admission to the NICU or up to two hours after birth was increased in infants in the wrapped group (typical RR 3.91, 95% CI 2.05 to 7.44; typical RD 0.04, 95% CI 0.02 to 0.06; number needed to treat for an additional harmful outcome (NNTH) 25, 95% CI 17 to 50; 12 studies; 1523 infants), but overall, fewer infants receiving plastic wrap were outside the normothermic range (typical RR 0.75, 95% CI 0.69 to 0.81; typical RD -0.20, 95% CI -0.26 to -0.15; NNTH 5, 95% CI 4 to 7; five studies; 1048 infants).Evidence was insufficient to suggest that plastic wraps or bags significantly reduce risk of death during hospital stay or other major morbidities, with the exception of reducing risk of pulmonary haemorrhage.Evidence of practices regarding permutations on this general approach is still emerging and has been based on the findings of only one or two small studies.External heat sourcesEvidence is emerging on the efficacy of external heat sources, including skin-to-skin care (SSC) versus routine care (one study; 31 infants) and thermal mattress versus routine care (two studies; 126 infants).SSC was shown to be effective in reducing risk of hypothermia when compared with conventional incubator care for infants with birth weight ≥ 1200 and ≤ 2199 grams (RR 0.09, 95% CI 0.01 to 0.64; RD -0.56, 95% CI -0.84 to -0.27; NNTB 2, 95% CI 1 to 4). Thermal (transwarmer) mattress significantly kept infants ≤ 1500 grams warmer (MD 0.65°C, 95% CI 0.36 to 0.94) and reduced the incidence of hypothermia on admission to the NICU, with no significant difference in hyperthermia risk.Combinations of interventionsTwo studies (77 infants) compared thermal mattresses versus plastic wraps or bags for infants at ≤ 28 weeks' gestation. Investigators reported no significant differences in core body temperature nor in the incidence of hypothermia, hyperthermia, or core body temperature outside the normothermic range on admission to the NICU.Two additional studies (119 infants) compared plastic bags and thermal mattresses versus plastic bags alone for infants at < 31 weeks' gestation. Meta-analysis of these two studies showed improvement in core body temperature on admission to the NICU or up to two hours after birth, but an increase in hyperthermia. Data show no significant difference in the risk of having a core body temperature outside the normothermic range on admission to the NICU nor in the risk of other reported morbidities. AUTHORS' CONCLUSIONS Evidence of moderate quality shows that use of plastic wraps or bags compared with routine care led to higher temperatures on admission to NICUs with less hypothermia, particularly for extremely preterm infants. Thermal mattresses and SSC also reduced hypothermia risk when compared with routine care, but findings are based on two or fewer small studies. Caution must be taken to avoid iatrogenic hyperthermia, particularly when multiple interventions are used simultaneously. Limited evidence suggests benefit and no evidence of harm for most short-term morbidity outcomes known to be associated with hypothermia, including major brain injury, bronchopulmonary dysplasia, retinopathy of prematurity, necrotising enterocolitis, and nosocomial infection. Many observational studies have shown increased mortality among preterm hypothermic infants compared with those who maintain normothermia, yet evidence is insufficient to suggest that these interventions reduce risk of in-hospital mortality across all comparison groups. Hypothermia may be a marker for illness and poorer outcomes by association rather than by causality. Limitations of this review include small numbers of identified studies; small sample sizes; and variations in methods and definitions used for hypothermia, hyperthermia, normothermia, routine care, and morbidity, along with lack of power to detect effects on morbidity and mortality across most comparison groups. Future studies should: be adequately powered to detect rarer outcomes; apply standardised morbidity definitions; focus on longer-term outcomes, particularly neurodevelopmental outcomes.
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Affiliation(s)
- Emma M McCall
- Queen's University BelfastSchool of Nursing and MidwiferyMedical Biology Centre97 Lisburn RoadBelfastNorthern IrelandUK
| | - Fiona Alderdice
- Nuffield Department of Population Health, University of OxfordNational Perinatal Epidemiology UnitOxfordUK
| | - Henry L Halliday
- Retired Honorary Professor of Child Health, Queen's University Belfast74 Deramore Park SouthBelfastNorthern IrelandUKBT9 5JY
| | - Sunita Vohra
- University of AlbertaDepartment of Pediatrics8B19 11111 Jasper AvenueEdmontonABCanadaT5K 0L4
| | - Linda Johnston
- University of TorontoLawrence S Bloomberg Faculty of NursingHealth Sciences Building155 College StreetTorontoOntarioCanadaM5T 2S8
- Soochow UniversityTaipeiTaiwan
- The University of MelbourneMelbourneAustralia
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The Positive Association Between Duration of Skin-to-Skin Contact and Blood Glucose Level in Full-Term Infants. J Perinat Neonatal Nurs 2018; 32:351-357. [PMID: 29782439 DOI: 10.1097/jpn.0000000000000335] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The aim of this study was to evaluate the contribution of the duration of skin-to-skin contact (SSC) on blood glucose levels at 2 hours after birth in healthy full-term infants. This observational study was done at one of the baby-friendly hospitals located in Aichi, Japan in 2009. Sixty newborn infants who were born vaginally from uncomplicated pregnancies were participated. All infants were held SSC within 5 minutes. All data regarding neonatal information, blood glucose levels at 2 hours of age, and maternal information were obtained from their medical history. Multiple linear regression analysis was performed to identify the independent contribution of the duration of SSC. The mean duration of SSC was 59.6 ± 13.6 minutes (range: 11.0-97.0 minutes) and the infant blood glucose level was 53.1 ± 9.5 (range: 30.0-80.0 mg/dL) mg/dL. The duration of SSC (β [95% confidence interval] = .282 [range: 0.037-0.357], standardized β = .282, P < .017) was significantly and positively associated with infant blood glucose levels independent of gestational age, birth weight, sex, length of second-stage labor, and mode of delivery. Thus, the longer early SSC was associated with higher blood glucose level at 2 hours of age in healthy full-term infants.
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Salomonsson B. Has infantile sexuality anything to do with infants? THE INTERNATIONAL JOURNAL OF PSYCHOANALYSIS 2017; 93:631-47. [DOI: 10.1111/j.1745-8315.2012.00577.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Björn Salomonsson
- Karolinska Institutet, Department of Women’s and Children’s Health, SE–171 76 Stockholm, Sweden –
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Galipeau R, Dumas L, Lepage M. Perception of Not Having Enough Milk and Actual Milk Production of First-Time Breastfeeding Mothers: Is There a Difference? Breastfeed Med 2017; 12:210-217. [PMID: 28326807 DOI: 10.1089/bfm.2016.0183] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE This study aimed to determine the relationship between perceived insufficient milk supply (PIMS) and actual insufficient milk supply (AIMS) and the relative contributions of physiological and psychosocial variables on both PIMS and AIMS of first-time breastfeeding mothers. PARTICIPANTS AND METHODS Data were collected among 123 breastfeeding mothers at a Canadian, French-speaking maternal care hospital. Birth events, breastfeeding practices, infant and maternal capacities, and PIMS and AIMS were collected at 48 hours after birth, postnatal weeks 2 and 6. RESULTS No significant relationship was found between PIMS and AIMS. Maternal breastfeeding self-efficacy and number of feeds were related to PIMS at week 2, and skin-to-skin contact at birth and number of feeds were related to AIMS as measured by 24-hour milk production at week 2. CONCLUSION Maternal breastfeeding self-efficacy impacts PIMS. Interventions should be directed to increase maternal confidence in breastfeeding, which in turn influences breastfeeding duration.
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Affiliation(s)
- Roseline Galipeau
- Nursing Department, University of Quebec in Outaouais , Gatineau, Canada
| | - Louise Dumas
- Nursing Department, University of Quebec in Outaouais , Gatineau, Canada
| | - Mario Lepage
- Nursing Department, University of Quebec in Outaouais , Gatineau, Canada
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The realization of BFHI Step 4 in Finland - Initial breastfeeding and skin-to-skin contact according to mothers and midwives. Midwifery 2017; 50:27-35. [PMID: 28384552 DOI: 10.1016/j.midw.2017.03.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Breastfeeding and skin-to-skin contact are the best start for infant life. Breastfeeding ensures the best trajectory for development and growth while preventing many diseases later in life. It is recommended that initial breastfeeding occur during the first hour and that generally exclusive breastfeeding is adopted during the first six months. OBJECTIVE The aim of this study is to describe how initial breastfeeding and skin-to-skin contact (Step 4 of the BFHI) is implemented in Finnish maternity hospitals as well as to explain the factors connected to it. The information can be used to develop maternity care during the immediate postpartum period. DESIGN Cross-sectional study. METHODS The data were collected from mothers who had given birth as well as their midwives via questionnaire during the spring of 2014 during one week at eight maternity hospitals in Finland. The response rate was 59% for the new mothers (n=111), while it was 57% for the midwives (n=272). The data were analysed statistically and the open-ended questions in the questionnaire using content specifications. FINDINGS On the basis of the results, initial breastfeeding succeeded well after vaginal birth. Initial breastfeeding began, on average, at 41minutes of age and lasted for 51minutes. Of mothers, 87% regarded it a very positive experience. Initial breastfeeding was delayed mainly because of caesarean section and for reasons related to an infant's condition. Many background factors such as midwives' age, mothers' parity and the mode of childbirth were statistically significant in respect to the success of initial breastfeeding. CONCLUSIONS More attention should be placed on the initial breastfeeding of infants born by caesarean section and primiparous mothers.
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Moore ER, Bergman N, Anderson GC, Medley N. Early skin-to-skin contact for mothers and their healthy newborn infants. Cochrane Database Syst Rev 2016; 11:CD003519. [PMID: 27885658 PMCID: PMC6464366 DOI: 10.1002/14651858.cd003519.pub4] [Citation(s) in RCA: 318] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Mother-infant separation post birth is common. In standard hospital care, newborn infants are held wrapped or dressed in their mother's arms, placed in open cribs or under radiant warmers. Skin-to-skin contact (SSC) begins ideally at birth and should last continually until the end of the first breastfeeding. SSC involves placing the dried, naked baby prone on the mother's bare chest, often covered with a warm blanket. According to mammalian neuroscience, the intimate contact inherent in this place (habitat) evokes neuro-behaviors ensuring fulfillment of basic biological needs. This time frame immediately post birth may represent a 'sensitive period' for programming future physiology and behavior. OBJECTIVES To assess the effects of immediate or early SSC for healthy newborn infants compared to standard contact on establishment and maintenance of breastfeeding and infant physiology. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (17 December 2015), made personal contact with trialists, consulted the bibliography on kangaroo mother care (KMC) maintained by Dr Susan Ludington, and reviewed reference lists of retrieved studies. SELECTION CRITERIA Randomized controlled trials that compared immediate or early SSC with usual hospital care. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. Quality of the evidence was assessed using the GRADE approach. MAIN RESULTS We included 46 trials with 3850 women and their infants; 38 trials with 3472 women and infants contributed data to our analyses. Trials took place in 21 countries, and most recruited small samples (just 12 trials randomized more than 100 women). Eight trials included women who had SSC after cesarean birth. All infants recruited to trials were healthy, and the majority were full term. Six trials studied late preterm infants (greater than 35 weeks' gestation). No included trial met all criteria for good quality with respect to methodology and reporting; no trial was successfully blinded, and all analyses were imprecise due to small sample size. Many analyses had statistical heterogeneity due to considerable differences between SSC and standard care control groups. Results for womenSSC women were more likely than women with standard contact to be breastfeeding at one to four months post birth, though there was some uncertainty in this estimate due to risks of bias in included trials (average risk ratio (RR) 1.24, 95% confidence interval (CI) 1.07 to 1.43; participants = 887; studies = 14; I² = 41%; GRADE: moderate quality). SSC women also breast fed their infants longer, though data were limited (mean difference (MD) 64 days, 95% CI 37.96 to 89.50; participants = 264; studies = six; GRADE:low quality); this result was from a sensitivity analysis excluding one trial contributing all of the heterogeneity in the primary analysis. SSC women were probably more likely to exclusively breast feed from hospital discharge to one month post birth and from six weeks to six months post birth, though both analyses had substantial heterogeneity (from discharge average RR 1.30, 95% CI 1.12 to 1.49; participants = 711; studies = six; I² = 44%; GRADE: moderate quality; from six weeks average RR 1.50, 95% CI 1.18 to 1.90; participants = 640; studies = seven; I² = 62%; GRADE: moderate quality).Women in the SCC group had higher mean scores for breastfeeding effectiveness, with moderate heterogeneity (IBFAT (Infant Breastfeeding Assessment Tool) score MD 2.28, 95% CI 1.41 to 3.15; participants = 384; studies = four; I² = 41%). SSC infants were more likely to breast feed successfully during their first feed, with high heterogeneity (average RR 1.32, 95% CI 1.04 to 1.67; participants = 575; studies = five; I² = 85%). Results for infantsSSC infants had higher SCRIP (stability of the cardio-respiratory system) scores overall, suggesting better stabilization on three physiological parameters. However, there were few infants, and the clinical significance of the test was unclear because trialists reported averages of multiple time points (standardized mean difference (SMD) 1.24, 95% CI 0.76 to 1.72; participants = 81; studies = two; GRADE low quality). SSC infants had higher blood glucose levels (MD 10.49, 95% CI 8.39 to 12.59; participants = 144; studies = three; GRADE: low quality), but similar temperature to infants in standard care (MD 0.30 degree Celcius (°C) 95% CI 0.13 °C to 0.47 °C; participants = 558; studies = six; I² = 88%; GRADE: low quality). Women and infants after cesarean birthWomen practicing SSC after cesarean birth were probably more likely to breast feed one to four months post birth and to breast feed successfully (IBFAT score), but analyses were based on just two trials and few women. Evidence was insufficient to determine whether SSC could improve breastfeeding at other times after cesarean. Single trials contributed to infant respiratory rate, maternal pain and maternal state anxiety with no power to detect group differences. SubgroupsWe found no differences for any outcome when we compared times of initiation (immediate less than 10 minutes post birth versus early 10 minutes or more post birth) or lengths of contact time (60 minutes or less contact versus more than 60 minutes contact). AUTHORS' CONCLUSIONS Evidence supports the use of SSC to promote breastfeeding. Studies with larger sample sizes are necessary to confirm physiological benefit for infants during transition to extra-uterine life and to establish possible dose-response effects and optimal initiation time. Methodological quality of trials remains problematic, and small trials reporting different outcomes with different scales and limited data limit our confidence in the benefits of SSC for infants. Our review included only healthy infants, which limits the range of physiological parameters observed and makes their interpretation difficult.
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Affiliation(s)
- Elizabeth R Moore
- Vanderbilt UniversitySchool of Nursing314 Godchaux Hall21st Avenue SouthNashvilleTennesseeUSA37240‐0008
| | - Nils Bergman
- University of Cape TownSchool of Child and Adolescent Health, and Department of Human BiologyCape TownSouth Africa
| | - Gene C Anderson
- Professor Emerita, University of FloridaCase Western Reserve UniversityOak Hammock at the University of Florida5000 SW 25th Boulevard #2108GainesvilleFLUSA32608‐8901
| | - Nancy Medley
- The University of LiverpoolCochrane Pregnancy and Childbirth Group, Department of Women's and Children's HealthFirst Floor, Liverpool Women's NHS Foundation TrustCrown StreetLiverpoolUKL8 7SS
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Hormonal Physiology of Childbearing, an Essential Framework for Maternal-Newborn Nursing. J Obstet Gynecol Neonatal Nurs 2016; 45:264-75; quiz e3-4. [PMID: 26826397 DOI: 10.1016/j.jogn.2015.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/01/2015] [Indexed: 11/20/2022] Open
Abstract
Knowledge of the hormonal physiology of childbearing is foundational for all who care for childbearing women and newborns. When promoted, supported, and protected, innate, hormonally driven processes optimize labor and birth, maternal and newborn transitions, breastfeeding, and mother-infant attachment. Many common perinatal interventions can interfere with or limit hormonal processes and have other unintended effects. Such interventions should only be used when clearly indicated. High-quality care incorporates salutogenic nursing practices that support physiologic processes and maternal-newborn health.
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Jonas W, Woodside B. Physiological mechanisms, behavioral and psychological factors influencing the transfer of milk from mothers to their young. Horm Behav 2016; 77:167-81. [PMID: 26232032 DOI: 10.1016/j.yhbeh.2015.07.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 07/12/2015] [Accepted: 07/23/2015] [Indexed: 12/13/2022]
Abstract
This article is part of a Special Issue "Parental Care".Producing milk to support the growth of their young is a central element of maternal care in mammals. In spite of the facts that ecological constraints influence nursing frequency, length of time until weaning and the composition of milk, there is considerable similarity in the anatomy and physiology of milk production and delivery across mammalian species. Here we provide an overview of cross species variation in nursing patterns and milk composition as well as the mechanisms underlying mammary gland development, milk production and letdown. Not all women breastfeed their infants, thus in later sections we review studies of factors that facilitate or impede the initiation and duration of breastfeeding. The results of these investigations suggest that the decisions to initiate and maintain breastfeeding are influenced by an array of personal, social and biological factors. Finally, studies comparing the development of breastfed and formula fed infants as well as those investigating associations between breastfeeding, maternal health and mother/infant interaction are reviewed. Leading health agencies including the World Health Organization and CDC advocate breastfeeding for at least the first 6months postpartum. To achieve these rates will require not only institutional support but also a focus on individual mother/infant dyads and their experience.
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Affiliation(s)
- Wibke Jonas
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Fraser Mustard Institute of Human Development, University of Toronto, Toronto, Canada
| | - Barbara Woodside
- Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, QC, Canada.
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Jonas W, Atkinson L, Steiner M, Meaney MJ, Wazana A, Fleming AS. Breastfeeding and maternal sensitivity predict early infant temperament. Acta Paediatr 2015; 104:678-86. [PMID: 25727570 DOI: 10.1111/apa.12987] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 02/24/2015] [Indexed: 11/29/2022]
Abstract
AIM Research findings are inconclusive when it comes to whether breastfeeding is associated with the mother-infant relationship or infant temperament. We examined the association between breastfeeding at three months postpartum and infant temperament at 18 months postpartum and whether this link was affected by the mothers' anxiety and mediated by her sensitivity. METHODS We assessed 170 mothers for breastfeeding and anxiety using the Spielberger State-Trait Anxiety Inventory (STAI) at three months postpartum, maternal sensitivity using the Ainsworth Sensitivity Scale at six months postpartum and infant temperament using the Early Childhood Behaviour Questionnaire at 18 months postpartum. RESULTS Mothers who breastfed at three months postpartum were more sensitive in their interactions with their infants at six months postpartum, and elevated sensitivity, in turn, predicted reduced levels of negative affectivity in infant temperament at 18 months postpartum. This indirect mediation persisted after controlling for confounders (effect ab = -0.0312 [0.0208], 95% CI = -0.0884 to -0.0031). A subsequent analysis showed that the mediation through sensitivity only occurred in women experiencing higher anxiety, with a STAI score ≥33.56 at three months (ab = -0.0250 [0.0179], 95% CI = -0.0759 to -0.0013). CONCLUSION Our results suggest that breastfeeding and maternal sensitivity may have a positive impact on the early development of infant temperament.
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Affiliation(s)
- Wibke Jonas
- Department of Psychology; University of Toronto; Toronto ON Canada
- Department of Women's and Children's Health; Karolinska Institute; Stockholm Sweden
| | - Leslie Atkinson
- Department of Psychology; Ryerson University; Toronto ON Canada
| | - Meir Steiner
- Women's Health Concerns Clinic; St. Joseph's Healthcare; Hamilton ON Canada
- Department of Psychiatry & Behavioural Neurosciences and Obstetrics & Gynecology; McMaster University; Hamilton ON Canada
| | | | - Ashley Wazana
- Department of Psychiatry; Centre for Child Development and Mental Health; Jewish General Hospital; Montreal QC Canada
| | - Alison S. Fleming
- Department of Psychology; University of Toronto; Toronto ON Canada
- Fraser Mustard Institute for Human Development; University of Toronto; Toronto ON Canada
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Beckes L, IJzerman H, Tops M. Toward a radically embodied neuroscience of attachment and relationships. Front Hum Neurosci 2015; 9:266. [PMID: 26052276 PMCID: PMC4439542 DOI: 10.3389/fnhum.2015.00266] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 04/23/2015] [Indexed: 11/20/2022] Open
Abstract
Attachment theory (Bowlby, 1969/1982) posits the existence of internal working models as a foundational feature of human bonds. Radical embodied approaches instead suggest that cognition requires no computation or representation, favoring a cognition situated in a body in an environmental context with affordances for action (Chemero, 2009; Barrett, 2011; Wilson and Golonka, 2013; Casasanto and Lupyan, 2015). We explore whether embodied approaches to social soothing, interpersonal warmth, separation distress, and support seeking could replace representational constructs such as internal working models with a view of relationship cognition anchored in the resources afforded to the individual by their brain, body, and environment in interaction. We review the neurobiological bases for social attachments and relationships and attempt to delineate how these systems overlap or don’t with more basic physiological systems in ways that support or contradict a radical embodied explanation. We suggest that many effects might be the result of the fact that relationship cognition depends on and emerges out of the action of neural systems that regulate several clearly physically grounded systems. For example, the neuropeptide oxytocin appears to be central to attachment and pair-bond behavior (Carter and Keverne, 2002) and is implicated in social thermoregulation more broadly, being necessary for maintaining a warm body temperature (for a review, see IJzerman et al., 2015b). Finally, we discuss the most challenging issues around taking a radically embodied perspective on social relationships. We find the most crucial challenge in individual differences in support seeking and responses to social contact, which have long been thought to be a function of representational structures in the mind (e.g., Baldwin, 1995). Together we entertain the thought to explain such individual differences without mediating representations or computations, but in the end propose a hybrid model of radical embodiment and internal representations.
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Affiliation(s)
- Lane Beckes
- Department of Psychology, Bradley University, Peoria IL, USA
| | - Hans IJzerman
- Department of Clinical Psychology, VU University Amsterdam Amsterdam, Netherlands ; Tilburg School of Behavioral and Social Sciences, Tilburg University Tilburg, Netherlands
| | - Mattie Tops
- Department of Clinical Psychology, VU University Amsterdam Amsterdam, Netherlands
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IJzerman H, Coan JA, Wagemans FMA, Missler MA, van Beest I, Lindenberg S, Tops M. A theory of social thermoregulation in human primates. Front Psychol 2015; 6:464. [PMID: 25954223 PMCID: PMC4404741 DOI: 10.3389/fpsyg.2015.00464] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 03/31/2015] [Indexed: 12/30/2022] Open
Abstract
Beyond breathing, the regulation of body temperature-thermoregulation-is one of the most pressing concerns for many animals. A dysregulated body temperature has dire consequences for survival and development. Despite the high frequency of social thermoregulation occurring across many species, little is known about the role of social thermoregulation in human (social) psychological functioning. We outline a theory of social thermoregulation and reconsider earlier research on people's expectations of their social world (i.e., attachment) and their prediction of the social world. We provide support and outline a research agenda that includes consequences for individual variation in self-regulatory strategies and capabilities. In our paper, we discuss physiological, neural, and social processes surrounding thermoregulation. Emphasizing social thermoregulation in particular, we appeal to the economy of action principle and the hierarchical organization of human thermoregulatory systems. We close with future directions of a crucial aspect of human functioning: the social regulation of body temperature.
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Affiliation(s)
- Hans IJzerman
- Department of Clinical Psychology, VU University, Amsterdam, Netherlands
| | - James A. Coan
- Department of Psychology, University of Virginia, Charlottesville, VA, USA
| | | | - Marjolein A. Missler
- Department of Developmental Psychology, Tilburg University, Tilburg, Netherlands
| | - Ilja van Beest
- Department of Social Psychology, Tilburg University, Tilburg, Netherlands
| | - Siegwart Lindenberg
- Department of Social Psychology, Tilburg University, Tilburg, Netherlands
- Department of Sociology, University of Groningen, Groningen, Netherlands
| | - Mattie Tops
- Department of Clinical Psychology, VU University, Amsterdam, Netherlands
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The Effects of Skin-to-Skin Contact on Temperature and Breastfeeding Successfulness in Full-Term Newborns after Cesarean Delivery. Int J Pediatr 2014; 2014:846486. [PMID: 25610472 PMCID: PMC4291124 DOI: 10.1155/2014/846486] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 11/29/2014] [Accepted: 11/29/2014] [Indexed: 11/17/2022] Open
Abstract
Background. The skin-to-skin contact (SSC) of mother and newborn is uncommon full-term newborns after delivering via cesarean section due to the possibility of hypothermia in the infants. The aim of this study was to compare mothers' and infant's temperatures after delivering via cesarean section. Material and Methods. In this randomized clinical trial, 90 infant/mothers dyads delivered via cesarean section were randomized to SSC (n = 46) and routine care (n = 44). In experimental group, skin-to-skin contact was performed for one hour and in the routine group the infant was dressed and put in the cot according to hospital routine care. The newborns' mothers' temperatures in both groups were taken at half-hour intervals. The data was analyzed using descriptive statistics, t-tests, and chi-square tests. Results. The means of the newborns' temperatures immediately after SSC (P = 0.86), half an hour (P = 0.31), and one hour (P = 0.52) after the intervention did not show statistically significant differences between the two groups. The mean scores of the infants' breastfeeding assessment in SSC (8.76±3.63) and routine care (7.25±3.5) groups did not show significant differences (P = 0.048). Conclusion. Mother and infant's skin-to-skin contact is possible after delivering via cesarean section and does not increase the risk of hypothermia.
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Stevens J, Schmied V, Burns E, Dahlen H. Immediate or early skin-to-skin contact after a Caesarean section: a review of the literature. MATERNAL & CHILD NUTRITION 2014; 10:456-73. [PMID: 24720501 PMCID: PMC6860199 DOI: 10.1111/mcn.12128] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The World Health Organization and the United Nations International Children's Emergency Fund recommends that mothers and newborns have skin-to-skin contact immediately after a vaginal birth, and as soon as the mother is alert and responsive after a Caesarean section. Skin-to-skin contact can be defined as placing a naked infant onto the bare chest of the mother. Caesarean birth is known to reduce initiation of breastfeeding, increase the length of time before the first breastfeed, reduce the incidence of exclusive breastfeeding, significantly delay the onset of lactation and increase the likelihood of supplementation. The aim of this review is to evaluate evidence on the facilitation of immediate (within minutes) or early (within 1 h) skin-to-skin contact following Caesarean section for healthy mothers and their healthy term newborns, and identify facilitators, barriers and associated maternal and newborn outcomes. A range of electronic databases were searched for papers reporting research findings published in English between January 2003 and October 2013. Seven papers met the criteria. This review has provided some evidence that with appropriate collaboration skin-to-skin contact during Caesarean surgery can be implemented. Further evidence was provided, albeit limited, that immediate or early skin-to-skin contact after a Caesarean section may increase breastfeeding initiation, decrease time to the first breastfeed, reduce formula supplementation in hospital, increase bonding and maternal satisfaction, maintain the temperature of newborns and reduce newborn stress.
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Affiliation(s)
- Jeni Stevens
- School of Nursing and MidwiferyUniversity of Western SydneyPenrithNew South WalesAustralia
| | - Virginia Schmied
- School of Nursing and MidwiferyUniversity of Western SydneyPenrithNew South WalesAustralia
| | - Elaine Burns
- School of Nursing and MidwiferyUniversity of Western SydneyPenrithNew South WalesAustralia
| | - Hannah Dahlen
- School of Nursing and MidwiferyUniversity of Western SydneyPenrithNew South WalesAustralia
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Brimdyr K, Widström AM, Cadwell K, Svensson K, Turner-Maffei C. A Realistic Evaluation of Two Training Programs on Implementing Skin-to-Skin as a Standard of Care. J Perinat Educ 2013; 21:149-57. [PMID: 23730126 DOI: 10.1891/1058-1243.21.3.149] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The authors used realistic evaluation to examine the real-world effectiveness of two 5-day training techniques on sustained optimal skin-to-skin practices that support Step 4 of the revised Baby-Friendly Hospital Initiative (BFHI). The authors found that education alone was insufficient to effect sustainable practice change. Exposure to the 5-day immersion model (Practice, Reflection, Education and training, Combined with Ethnography for Sustainable Success, or PRECESS) alone or combined with education was an effective strategy to change and sustain the standard of care for skin-to-skin practice (p < 0.00001). The intended outcome of sustained practice change toward implementation of skin-to-skin care through immersion or a combined approach shows promise and should be repeated in other localities.
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Dumas L, Lepage M, Bystrova K, Matthiesen AS, Welles-Nyström B, Widström AM. Influence of Skin-to-Skin Contact and Rooming-In on Early Mother–Infant Interaction. Clin Nurs Res 2013; 22:310-36. [DOI: 10.1177/1054773812468316] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The objective of this research was to study influence of birth routines on mother–infant interaction at Day 4. The present research is part of a longitudinal study where mother–infant pairs were randomized by infant location and apparel. We intended to assess mother–infant interaction from videos filmed at Day 4. A protocol for the assessment/coding of the affective quality of maternal behaviors indicative of early mother–infant interaction was developed and interculturally validated. Results were compared with birth randomization, as to explain impact of birth practices. Findings indicate that separation and swaddling at birth interfered with mother–infant interaction during a breastfeeding session at Day 4; these mothers significantly demonstrated more roughness in their behaviors with their infants at Day 4. Results also show evidences of a sensitive period for separation after birth. Implications are to encourage immediate and uninterrupted skin-to-skin contact at birth, and rooming-in during postpartum, as recommended in World Health Organization/UNICEF Ten Steps for Successful Breastfeeding.
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Affiliation(s)
- Louise Dumas
- Université du Québec en Outaouais, Gatineau, Québec, Canada
- Department of Woman and Child Health,Karolinska Institutet, Stockholm, Sweden
| | - Mario Lepage
- Université du Québec en Outaouais, Gatineau, Québec, Canada
| | - Ksenia Bystrova
- Department of Woman and Child Health,Karolinska Institutet, Stockholm, Sweden
- St. Petersburg Pediatric Academy, St. Petersburg, Russia
| | - Ann-Sofi Matthiesen
- Department of Woman and Child Health,Karolinska Institutet, Stockholm, Sweden
| | | | - Ann-Marie Widström
- Department of Woman and Child Health,Karolinska Institutet, Stockholm, Sweden
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Baddock SA, Galland BC, Bolton DPG, Williams SM, Taylor BJ. Hypoxic and hypercapnic events in young infants during bed-sharing. Pediatrics 2012; 130:237-44. [PMID: 22802605 DOI: 10.1542/peds.2011-3390] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To identify desaturation events (arterial oxygen saturation [Sao(2)] <90%) and rebreathing events (inspired carbon dioxide (CO(2)) >3%), in bed-sharing (BS) versus cot-sleeping (CS) infants. METHODS Forty healthy, term infants, aged 0 to 6 months who regularly bed-shared with at least 1 parent >5 hours per night and 40 age-matched CS infants were recruited. Overnight parent and infant behavior (via infrared video), Sao(2), inspired CO(2) around the infant's face, and body temperature were recorded during sleep at home. RESULTS Desaturation events were more common in BS infants (risk ratio = 2.17 [95% confidence interval: 1.75 to 2.69]), associated partly with the warmer microenvironment during BS. More than 70% of desaturations in both groups were preceded by central apnea of 5 to 10 seconds with no accompanying bradycardia, usually in active sleep. Apnea >15 seconds was rare (BS infants: 3 events; CS infants: 6 events), as was desaturation <80% (BS infants: 3 events; CS infants: 4 events). Eighty episodes of rebreathing were identified from 22 BS infants and 1 CS infant, almost all preceded by head covering. During rebreathing, Sao(2) was maintained at the baseline of 97.6%. CONCLUSIONS BS infants experienced more oxygen desaturations preceded by central apnea, partly related to the warmer microenvironment. Rebreathing occurred mainly during bed-sharing. Infants were at low risk of sudden infant death syndrome and maintained normal oxygenation. The effect of repeated exposure to oxygen desaturation in vulnerable infants is unknown as is the ability of vulnerable infants to respond effectively to rebreathing caused by head covering.
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Affiliation(s)
- Sally A Baddock
- Department of Women’s and Children’s Health, University of Otago, Dunedin, New
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Moore ER, Anderson GC, Bergman N, Dowswell T. Early skin-to-skin contact for mothers and their healthy newborn infants. Cochrane Database Syst Rev 2012; 5:CD003519. [PMID: 22592691 PMCID: PMC3979156 DOI: 10.1002/14651858.cd003519.pub3] [Citation(s) in RCA: 230] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Mother-infant separation postbirth is common in Western culture. Early skin-to-skin contact (SSC) begins ideally at birth and involves placing the naked baby, head covered with a dry cap and a warm blanket across the back, prone on the mother's bare chest. According to mammalian neuroscience, the intimate contact inherent in this place (habitat) evokes neurobehaviors ensuring fulfillment of basic biological needs. This time may represent a psychophysiologically 'sensitive period' for programming future physiology and behavior. OBJECTIVES To assess the effects of early SSC on breastfeeding, physiological adaptation, and behavior in healthy mother-newborn dyads. SEARCH METHODS We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 November 2011), made personal contact with trialists, and consulted the bibliography on kangaroo mother care (KMC) maintained by Dr. Susan Ludington. SELECTION CRITERIA Randomized controlled trials comparing early SSC with usual hospital care. DATA COLLECTION AND ANALYSIS We independently assessed trial quality and extracted data. Study authors were contacted for additional information. MAIN RESULTS Thirty-four randomized controlled trials were included involving 2177 participants (mother-infant dyads). Data from more than two trials were available for only eight outcome measures. For primary outcomes, we found a statistically significant positive effect of early SSC on breastfeeding at one to four months postbirth (13 trials; 702 participants) (risk ratio (RR) 1.27, 95% confidence interval (CI) 1.06 to 1.53, and SSC increased breastfeeding duration (seven trials; 324 participants) (mean difference (MD) 42.55 days, 95% CI -1.69 to 86.79) but the results did not quite reach statistical significance (P = 0.06). Late preterm infants had better cardio-respiratory stability with early SSC (one trial; 31 participants) (MD 2.88, 95% CI 0.53 to 5.23). Blood glucose 75 to 90 minutes following the birth was significantly higher in SSC infants (two trials, 94 infants) (MD 10.56 mg/dL, 95% CI 8.40 to 12.72).The overall methodological quality of trials was mixed, and there was high heterogeneity for some outcomes. AUTHORS' CONCLUSIONS Limitations included methodological quality, variations in intervention implementation, and outcomes. The intervention appears to benefit breastfeeding outcomes, and cardio-respiratory stability and decrease infant crying, and has no apparent short- or long-term negative effects. Further investigation is recommended. To facilitate meta-analysis, future research should be done using outcome measures consistent with those in the studies included here. Published reports should clearly indicate if the intervention was SSC with time of initiation and duration and include means, standard deviations and exact probability values.
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Abouelfettoh A, Ludington-Hoe SM, Burant CJ, Visscher MO. Effect of skin-to-skin contact on preterm infant skin barrier function and hospital-acquired infection. J Clin Med Res 2011; 3:36-46. [PMID: 22043270 PMCID: PMC3194024 DOI: 10.4021/jocmr479w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/16/2010] [Indexed: 11/12/2022] Open
Abstract
Background The preterm infants' skin is structurally and functionally immature at birth because of immature stratum corneum barrier function, leading to problems with fluid loses, thermoregulation, and infection. Two parameters of barrier function can be non-invasively assessed: Stratum Corneum Hydration (SCH) and Transepidermal Water Loss (TEWL). Skin-to-Skin Care (SSC) is the proposed independent variable that might affect barrier function by decreasing TEWL and increasing SCH, thereby improving stratum corneum barrier function and consequently decreasing the rate of infection. No study of SSC's effects on TEWL and SCH of preterm infants could be found. The purpose of the study was to determine the effect of 5 daily Skin-to-Skin Contact sessions on infant skin hydration (SCH), transepidermal evaporated water loss (TEWL), and on SCH when TEWL was controlled, and on the presence of hospital acquired infection. Methods A one-group pretest-test-posttest design with 10 preterm infants (28 - 30 wks GA < 32 wks postmenstrual age, and no infection at entry). Test = 90 minutes of SSC; pre-test and post-test = 30 minutes each of prone positioning in an incubator. SCH and TEWL were taken on Days 1 and 5 at the beginning, middle and end of each period using Multi-Probe Adaptor. A 3 X 3 X 2 Repeated Measures Mixed Models Design, including a covariate, was used to analyze level of Skin Hydration. Specifically, the model tested comparisons in SCH made across repetitions, time, and days, as well as all possible interactions while controlling for TEWL. Descriptive statistics described the number of positive blood cultures during hospitalization and the presence of infections four weeks post-discharge. Results Significant differences in skin hydration were found across TIME (Pre-SSC, SSC, Post-SSC) (F = 21.86; p < 0.001). One infant had a positive blood culture during hospitalization; no infants had signs of infection by 4 weeks post-discharge. Conclusions The study has begun fulfilling the recommendation that SSC be tested as a strategy to improve skin hydration, but reveals that evaporative loss may be higher during SSC than during incubator care, and that the higher transepidermal evaporated water loss values may not necessarily be detrimental because few infections occurred even in its presence. A definitive randomized controlled trial is recommended. Keywords Skin-to-skin contact; Skin hydration; Transepidermal water loss; Infection; Preterm
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Marín Gabriel MA, Llana Martín I, López Escobar A, Fernández Villalba E, Romero Blanco I, Touza Pol P. Randomized controlled trial of early skin-to-skin contact: effects on the mother and the newborn. Acta Paediatr 2010; 99:1630-4. [PMID: 19912138 DOI: 10.1111/j.1651-2227.2009.01597.x] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To estimate the influence of skin-to-skin care on the thermal regulation of the infant and the rate of breastfeeding at different points of time. We also aim to establish whether skin-to-skin contact reduces maternal pain during episiotomy repair and decreases the time to expel the placenta. METHODS A randomized control study was performed with 137 patients in each branch of the study. Differences between the study groups were analysed with the unpaired t-test, Fisher test or chi-square test as appropriate. RESULTS Greater thermal stability in the skin-to-skin care group was found where an average temperature rise of 0.07°C was observed. Mothers in the skin-to-skin care group exclusively breastfed more frequently at discharge. Mean time to expel the placenta was lesser in the skin-to-skin care group. CONCLUSION This study shows that skin-to-skin care implies better thermal regulation and a better proportion of exclusive breastfeeding at hospital discharge.
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Nyqvist KH, Anderson GC, Bergman N, Cattaneo A, Charpak N, Davanzo R, Ewald U, Ibe O, Ludington-Hoe S, Mendoza S, Pallás-Allonso C, Ruiz Peláez JG, Sizun J, Widström AM. Towards universal Kangaroo Mother Care: recommendations and report from the First European conference and Seventh International Workshop on Kangaroo Mother Care. Acta Paediatr 2010; 99:820-6. [PMID: 20219044 DOI: 10.1111/j.1651-2227.2010.01787.x] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
UNLABELLED The hallmark of Kangaroo Mother Care (KMC) is the kangaroo position: the infant is cared for skin-to-skin vertically between the mother's breasts and below her clothes, 24 h/day, with father/substitute(s) participating as KMC providers. Intermittent KMC (for short periods once or a few times per day, for a variable number of days) is commonly employed in high-tech neonatal intensive care units. These two modalities should be regarded as a progressive adaptation of the mother-infant dyad, ideally towards continuous KMC, starting gradually and progressively with intermittent KMC. The other components in KMC are exclusive breastfeeding (ideally) and early discharge in kangaroo position with strict follow-up. Current evidence allows the following general statements about KMC in affluent and low-income settings: KMC enhances bonding and attachment; reduces maternal postpartum depression symptoms; enhances infant physiologic stability and reduces pain, increases parental sensitivity to infant cues; contributes to the establishment and longer duration of breastfeeding and has positive effects on infant development and infant/parent interaction. Therefore, intrapartum and postnatal care in all types of settings should adhere to a paradigm of nonseparation of infants and their mothers/families. Preterm/low-birth-weight infants should be regarded as extero-gestational foetuses needing skin-to-skin contact to promote maturation. CONCLUSION Kangaroo Mother Care should begin as soon as possible after birth, be applied as continuous skin-to-skin contact to the extent that this is possible and appropriate and continue for as long as appropriate.
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McCall EM, Alderdice F, Halliday HL, Jenkins JG, Vohra S. Interventions to prevent hypothermia at birth in preterm and/or low birthweight infants. Cochrane Database Syst Rev 2010:CD004210. [PMID: 20238329 DOI: 10.1002/14651858.cd004210.pub4] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Keeping vulnerable preterm infants warm is problematic even when recommended routine thermal care guidelines are followed in the delivery suite. OBJECTIVES To assess efficacy and safety of interventions designed for prevention of hypothermia in preterm and/or low birthweight infants applied within 10 minutes after birth in the delivery suite compared with routine thermal care. SEARCH STRATEGY We used the standard search strategy of the Cochrane Neonatal Review Group (CNRG). The review was updated in October 2009. SELECTION CRITERIA Trials using randomised or quasi-randomised allocations to test a specific intervention designed to prevent hypothermia, (apart from 'routine' thermal care) applied within 10 minutes after birth in the delivery suite to infants of < 37 weeks' gestational age or birthweight </= 2500 g. DATA COLLECTION AND ANALYSIS We used the methods of the CNRG for data collection and analysis. MAIN RESULTS 1) Barriers to heat loss [5 studies; plastic wrap or bag (3), plastic cap (1), stockinet cap (1)]:Plastic wraps or bags were effective in reducing heat losses in infants < 28 weeks' gestation (4 studies, n = 223; WMD 0.68 degrees C; 95% CI 0.45, 0.91), but not in infants between 28 to 31 week's gestation. Plastic caps were effective in reducing heat losses in infants < 29 weeks' gestation (1 study, n = 64; MD 0.80 degrees C; 95% CI 0.41, 1.19). There was insufficient evidence to suggest that either plastic wraps or plastic caps reduce the risk of death within hospital stay. There was no evidence of significant differences in other clinical outcomes for either the plastic wrap/bag or the plastic cap comparisons. Stockinet caps were not effective in reducing heat losses.2) External heat sources [2 studies; skin-to-skin (1), transwarmer mattress (1)]:Skin-to-skin care (SSC) was shown to be effective in reducing the risk of hypothermia when compared to conventional incubator care for infants (1 study, n = 31; RR 0.09; 95% CI 0.01, 0.64). The transwarmer mattress reduced the incidence of hypothermia on admission to NICU in VLBW infants (1 study, n = 24; RR 0.30; 95% CI 0.11, 0.83). AUTHORS' CONCLUSIONS Plastic wraps or bags, plastic caps, SSC and transwarmer mattresses all keep preterm infants warmer leading to higher temperatures on admission to neonatal units and less hypothermia. However, the small numbers of infants and studies and the absence of long-term follow-up mean that firm recommendations for clinical practice cannot be given.
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Affiliation(s)
- Emma M McCall
- School of Medicine, Dentistry & Biomedical Sciences, Queen's University Belfast, Microbiology Building, Grosvenor Road, Belfast, Northern Ireland, UK, BT12 6BN
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Bystrova K. Novel mechanism of human fetal growth regulation: a potential role of lanugo, vernix caseosa and a second tactile system of unmyelinated low-threshold C-afferents. Med Hypotheses 2008; 72:143-6. [PMID: 19004563 DOI: 10.1016/j.mehy.2008.09.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Revised: 08/21/2008] [Accepted: 09/03/2008] [Indexed: 11/18/2022]
Abstract
Novel hypothesis of human fetal growth regulation in amniotic fluid environment integrates lanugo, vernix caseosa and a second tactile system of unmyelinated low-threshold C-afferents - all three forming a unique natural instrument powerfully speeding fetal growth during mid-gestation and lowering its tempo at the end of gestation. Repeated oscillations of lanugo hairs encased by vernix caseosa during fetal movements in amniotic fluid activate highly sensitive mechanoreceptors connected to unmyelinated C-afferents, which prime function is to conduct originated impulses from all fetal skin dermatoms via spinal cord and to activate vagal sensory zone, hypothalamus and insular cortex, for concomitant promotion of the anti-stress effect through oxytocin release, and stimulation of fetal growth by the incretin effect of gastrointestinal hormones.
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Affiliation(s)
- Ksenia Bystrova
- Department of Hospital Pediatrics, St. Petersburg State Pediatric Medical Academy, Litovskaya Str. 2, 194100 St. Petersburg, Russia.
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