Neonatal hypothermia and adherence to World Health Organisation thermal care guidelines among newborns at Moi Teaching and Referral Hospital, Kenya

Hypothermia and Adverse Outcomes in Very Preterm Infants: A Systematic Review

CONTEXT

Hypothermia after very preterm birth, typically defined as a temperature less than 36 °C, is variably linked to neonatal mortality and morbidities.

OBJECTIVE

To examine the association between admission hypothermia and adverse outcomes in very preterm infants with a gestational age (GA) of less than 32 weeks.

DATA SOURCES

CENTRAL, MEDLINE, and Embase from inception to February 18, 2024.

STUDY SELECTION

Observational or randomized designs reporting on the association between admission temperature and adverse outcomes in very preterm infants.

DATA EXTRACTION

Two reviewers screened abstracts and full texts, extracted the data, and assessed the risk of bias, following Meta-analysis Of Observational Studies in Epidemiology /Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We planned to perform random-effects meta-analyses, subgroup (GA, birthweight [BW], and income), sensitivity analysis (NOS, study type), and meta-regression (GA, BW). Outcomes included mortality and neonatal morbidities: bronchopulmonary dysplasia (BPD), intraventricular hemorrhage (IVH), necrotizing enterocolitis (NEC), retinopathy (ROP), and sepsis.

RESULTS

This review included 32 studies with >300 000 infants. The mean hypothermia rate was 42% (range 14%-88%). Hypothermia was associated with increased mortality (crude odds ratio [cOR] [95% CI] 2.02[1.84;2.21]; adjusted OR 1.55[1.29;1.87]). Subgroup and sensitivity analyses upheld these results. Meta-regression analysis showed an inversed relationship between effect size and BW. Hypothermia was associated with higher risks of BPD (cOR 1.13[1.01;1.27]), IVH (cOR 1.37[1.17;1.61]), ROP (cOR 1.55[1.41;1.69]), and sepsis (cOR 1.32[1.16;1.51]).

LIMITATIONS

Only observational studies were included.

CONCLUSIONS

Hypothermia is associated with increased mortality and morbidity in very preterm infants. The strength of this association may be influenced by BW, definitions of hypothermia and outcomes, and exclusion criteria. Given the robustness of our results and our sample size, identical cohort studies might not provide different insights.

Healthcare provider and parent perceptions of newborn care and referral pathways in three hospitals in western Kenya; a formative study

Background

The common causes of the 1.1 million newborn deaths in sub-Saharan Africa are birth asphyxia and trauma, severe infections, and complications of prematurity. Hypothermia is also a major threat to newborn survival. Three-quarters of newborn deaths could be prevented with essential equipment, skilled neonatal health workers, and a safe neonatal transport referral system. Following a review of the challenges and opportunities in caring for sick newborns, a university department (that develops sustainable and scalable solutions to address unmet needs in low-income settings) is developing an innovative newborn incubator and care solution. As part of a co-design collaborative process between the incubator developers and users, this paper explores the experiences of providers and parents of hospitalized newborns in Kenya.

Methods

A qualitative design: in-depth interviews with 19 healthcare providers working in maternity unit, newborn unit, or pediatric ward; interviews with 11 parents/caregivers of hospitalized sick newborn and very young infants (0-60 days), and ethnographic observations conducted in three hospitals in Western Kenya. Data collectors experienced in qualitative methods and newborn health were trained on study topics, interview guides, and research ethics. Interviews were audio-recorded, transcribed verbatim and translated into English. Data were analyzed using NVivo 11 qualitative software.

Results

The findings are presented around four themes: (1) facility infrastructure and medical supplies, devices for newborn care, and equipment maintenance; (2) characteristics of transfers/referrals of newborns between hospitals- healthcare provider views; (3) healthcare providers' reports on caring for newborns, provider, skills, and competency in newborn care; and (4) Parents' experiences during transfer and hospitalization of their small or sickcaring for a hospitalized baby.

Conclusion

Hypothermia continues to be a problem for newborns, especially in primary healthcare settings and transfers between facilities. Potential interventions include a review of provider newborn skills and updates, including Kangaroo Mother Care, addressed through existing mentoring programs. Essential thermal equipment is also required to support quality care of small and sick newborns, including for inter and intra-facility transfers. An increased focus on providing quality thermal care of small and sick newborns is warranted.

Prevalence and determinants of neonatal hypothermia in a tertiary hospital, Gondar Ethiopia: a cross-sectional study

Neonatal hypothermia is a significant global problem of neonates with huge contribution of neonatal morbidity and mortality. Recognizing major contributors of neonatal hypothermia is very important in designing preventing methods which was the objective of our study. This was an institution-based cross-sectional study conducted on 339 neonates admitted to Neonatal Intensive Care Unit of University of Gondar Comprehensive Specialized Hospital over 6months. Study participants were selected using systematic random sampling techniques and both bivariate and multivariate logistic regression analyses were used to identify contributors and p-value of < 0.05 was considered statistically significant. In our study, the prevalence of neonatal hypothermia was 70.05%. Low birth weight (AOR = 8.35, 95%CI: 2.34, 29.80), bathing within 24 h (AOR = 3.96, 95%CI: 1.06, 14.78), absence of head cover (AOR = 3.11, 95%CI: 1.16, 8.38), C/S delivery ( AOR = 8.54, 95%CI: 2.01, 36.39), night time delivery (AOR = 2.92, 95%CI: 1.29, 6.61) and being out born (AOR = 6.84, 95%CI: 2.12, 22.13) were having significant association with neonatal hypothermia. In this study, the prevalence of neonatal hypothermia was significantly high. Factors having significant association with neonatal hypothermia were low birth weight, bathing within 24 h, absence of head cover, C/S delivery, delivery at night and being out born were having.

Determining Consensus Alignment and Barriers of Neonatal Thermal Management in Nepal Using a Modified Delphi Process

Objective. Neonatal hypothermia is a worldwide health burden with an incidence ranging from 32% to 85% in hospitals and 11% to 92% in homebirths. It is prevalent in Nepal and associated with increased morbidity and mortality. The study objective was to identify key practice standards of newborn thermal management in Nepal. Methods. Our subjects included 6 lead newborn physicians from major birthing centers in Kathmandu. A modified Delphi process was used to identify the top 5 key practice standards for newborn thermoregulation in the hospital, health post, and home, compiled from 14 World Health Organization recommended practices. Results. There was consensus in all ranked practices except using radiant heat sources in the hospital and performing Kangaroo Mother Care in the homebirths. Comments conveyed that interventions during the immediate delivery phase were most impactful and feasible. Conclusion. Nepali physicians prioritized thermoregulatory practices during the immediate resuscitation period over the post-resuscitation period.

Clinical profiles, incidence and predictors of early neonatal mortality at Mbarara Regional Referral Hospital, south-western Uganda

BACKGROUND

The current neonatal mortality rate in Uganda is high at 22 deaths per 1000 live births, while it had been stagnant at 27 deaths per 1000 live births in the past decade. This is still more than double the World Health Organization target of < 12 deaths per 1,000 live births. Three-quarters of new born deaths occur within the first week of life, which is a very vulnerable period and the causes reflect the quality of obstetric and neonatal care. At Mbarara Regional Referral Hospital (MRRH), the modifiable contributors and predictors of mortality remain undocumented, yet neonates make the bulk of admissions and contribute significantly to the overall infant mortality rate. We therefore examined the clinical profiles, incidence and predictors of early neonatal mortality of neonates admitted at MRRH in south-western Uganda.

METHODS

We conducted a prospective cohort study at the Neonatal Unit of MRRH between August - November, 2022 among neonates. We consecutively included all live neonates aged < 7 days admitted to neonatal unit and excluded those whose outcomes could not be ascertained at day 7 of life. We obtained baseline data including; maternal social-demographic and obstetric information, and performed neonatal physical examinations for clinical profiles. We followed up neonates at 24 and 72 h of life, and at 7 days of life for mortality. We summarized the clinical profiles and incidence of mortality as frequencies and percentages and performed modified Poisson regression analysis to identify the predictors of early neonatal mortality.

RESULTS

We enrolled 384 neonates. The majority of neonates were in-born (68.5%, n = 263) and were admitted within 24 h after birth (54.7%, n = 210). The most common clinical profiles at admission were prematurity (46%, n = 178), low birth weight (LBW) (44%, n = 170), sepsis (36%, n = 139), hypothermia (35%, n = 133), and birth asphyxia (32%, n = 124). The incidence of early neonatal mortality was at 12.0%, 46 out of the 384 neonates died. The predictors of early neonatal mortality were hypothermia, [adjusted Risk Ratio: 4.10; 95% C.I (1.15-14.56)], birth asphyxia, [adjusted Risk Ratio: 3.6; 95% C.I (1.23-10.73)] and delayed initiation of breastfeeding, [adjusted Risk Ratio: 7.20; 95% C.I (1.01-51.30)].

CONCLUSION

Prematurity, LBW, sepsis, birth asphyxia and hypothermia are the commonest admission diagnoses. The incidence of early neonatal mortality was high, 12.0%. We recommend targeted interventions by the clinical care team at MRRH to enable timely identification of neonates with or at risk of hypothermia to reduce incidence of adverse outcomes. Intrapartum care should be improved in order to mitigate the risk of birth asphyxia. Breastfeeding within the first hour of birth should be strengthened were possible, as this is associated with vast benefits for the baby and may reduce the incidence of complications like hypothermia.

Improvement of temperature surveillance of neonates in low-resource settings by a simple low-cost device: a descriptive study

INTRODUCTION

Neonatal hypothermia in low-resource settings is prevalent and closely associated with high morbidity and mortality. We examined if an easy-to-read temperature detector device improves health outcomes.

METHODS

In a descriptive study, 1009 admissions to a neonatal ward in a tertiary care hospital in Lilongwe, Malawi, were analysed and divided into a baseline and a trial group. The data of 531 newborns with standard care (SC) before the trial were compared with 478 newborns during the implementation of the device (device care=DC). Staff and caregivers were trained on using the device and how to react in case of hypothermia. Data were collected from patient files, device documentation sheets, interviews and focus group discussions. Hypothermia was defined as a body temperature <36.5°C.

RESULTS

During the trial, body temperatures throughout the hospital stay were significantly more often obtained (p<0.0001). The median temperature measurements per newborn per day were 1.3 times with SC and 1.6 times with DC, and mild hypothermia was more frequently detected. Moderate hypothermia was avoided in the lightest weight group possibly contributing to significantly shorter hospital stays of surviving newborns (p=0.007). Many caregivers had difficulties using and interpreting the device correctly, and 47% of the reported colours did not match the registered temperatures. Contrary to the above, a questionnaire and focus group discussions with caregivers and health workers showed a high acceptance and the overall opinion that the device was beneficial.

CONCLUSION

With more frequent temperature checks, infants with lower birth weight possibly benefited from implementing an easy-to-read continuous temperature indicator, but hypothermia rates remained high. Our data and experiences reveal structural, communicational and consistency/interpretation deficits. Although specifically designed for low-resource settings, the implementation of the device needs a well-working and structured environment, especially regarding staff and caregiver communication.

Hypothermia in preterm infants admitted to low-resource neonatal units in northern Nigeria: an observational study of occurrence and risk factors

BACKGROUND

Hypothermia is an important cause of morbidity and mortality among preterm and low-birth-weight neonates. In resource-constrained settings, limited referral infrastructure and technologies for temperature control potentiate preterm hypothermia. While there is some documentation on point-of-admission hypothermia from single center studies, there are limited multicenter studies on the occurrence of hypothermia among preterm infants in resource-limited-settings. Therefore, we conducted a multicenter study to determine the prevalence and risk factors for hypothermia at the time of admission and during the first 72 h after admission in northern Nigeria.

METHOD

We carried out a prospective cohort study on preterm infants admitted to four referral hospitals in northern Nigerian between August 2020 and July 2021. We documented temperature measurements at admission and the lowest and highest temperatures in the first 72 h after admission. We also collected individual baby-level data on sociodemographic and perinatal history data. We used the World Health Organization classification of hypothermia to classify the babies' temperatures into mild, moderate, and severe hypothermia. Poisson regression analysis was used to identify risk factors for moderate-severe hypothermia.

RESULTS

Of the 933 preterm infants enrolled, 682 (72.9%) had hypothermia at admission although the prevalence of hypothermia varied across the four hospitals. During the first 24 h after admission, 7 out of every 10 babies developed hypothermia. By 72 h after admission, between 10 and 40% of preterm infants across the 4 hospitals had at least one episode of moderate hypothermia. Gestational age (OR = 0.86; CI = 0.82-0.91), birth weight (OR = 8.11; CI = 2.87-22.91), presence of a skilled birth attendant at delivery (OR = 0.53; CI = 0.29-0.95), place of delivery (OR = 1.94 CI = 1.13-3.33) and resuscitation at birth (OR = 1.79; CI = 1.27-2.53) were significant risk factors associated with hypothermia.

CONCLUSION

The prevalence of admission hypothermia in preterm infants is high and hypothermia is associated with low-birth-weight, place of delivery and presence of skilled birth attendant. The prevalence of hypothermia while in care is also high and this has important implications for patient safety and quality of patient care. Referral services for preterm infants need to be developed while hospitals need to be better equipped to maintain the temperatures of admitted small and sick newborns.

Incidence and risk factors of neonatal hypothermia: A systematic review and meta-analysis

AIM

Hypothermia poses a threat to the health and lives of newborns. Therefore, it is essential to identify the factors that influence neonatal hypothermia and provide targeted intervention suggestions for clinical practice to reduce its occurrence.

METHODS

We conducted a literature search to identify factors influencing neonatal hypothermia and performed a meta-analysis to determine the prevalence of neonatal hypothermia and its associated factors. The Newcastle-Ottawa Scale (NOS) was used to assess the quality of cohort and case-control studies, while the Agency for Healthcare Research and Quality (AHRQ) was used to evaluate the quality of cross-sectional studies.

RESULTS

Eighteen studies involving 44 532 newborns from 13 countries were included. The incidence of neonatal hypothermia was 52.5% (95% CI: 0.37, 0.68). Factors such as no skin-to-skin contact, prematurity, low birth weight, delayed breastfeeding, asphyxiation and resuscitation after birth, low APGAR score, not wearing a cap, and caesarean section were found to affect neonatal hypothermia.

CONCLUSION

Multiple factors influence neonatal hypothermia, and clinicians can utilise these factors to develop targeted intervention measures to prevent and reduce the incidence of neonatal hypothermia.

A mixed-methods study to investigate feasibility and acceptability of an early warning score for preterm infants in neonatal units in Kenya: results of the NEWS-K study : Neonatal early warning scores in Kenya

 Preterm birth (< 37 weeks gestation) complications are the leading cause of neonatal mortality. Early-warning scores (EWS) are charts where vital signs (e.g., temperature, heart rate, respiratory rate) are recorded, triggering action. To evaluate whether a neonatal EWS improves clinical outcomes in low-middle income countries, a randomised trial is needed. Determining whether the use of a neonatal EWS is feasible and acceptable in newborn units, is a prerequisite to conducting a trial. We implemented a neonatal EWS in three newborn units in Kenya. Staff were asked to record infants' vital signs on the EWS during the study, triggering additional interventions as per existing local guidelines. No other aspects of care were altered. Feasibility criteria were pre-specified. We also interviewed health professionals (n = 28) and parents/family members (n = 42) to hear their opinions of the EWS. Data were collected on 465 preterm and/or low birthweight (< 2.5 kg) infants. In addition to qualitative study participants, 45 health professionals in participating hospitals also completed an online survey to share their views on the EWS. 94% of infants had the EWS completed at least once during their newborn unit admission. EWS completion was highest on the day of admission (93%). Completion rates were similar across shifts. 15% of vital signs triggered escalation to a more senior member of staff. Health professionals reported liking the EWS, though recognised the biggest barrier to implementation was poor staffing. Newborn unit infant to staff ratios varied between 10 and 53 staff per 1 infant, depending upon time of shift and staff type. A randomised trial of neonatal EWS in Kenya is possible and acceptable, though adaptations are required to the form before implementation.

Skin-to-Skin Contact for Transferring Preterm Infants from the Delivery Room to the Neonatal Intensive Care Unit Is Promising Despite Moderate Heat Loss during the Procedure

OBJECTIVE

The principal aim of this prospective observational study was to assess the feasibility of skin-to-skin contact (SSC) with fathers during the transfer of preterm infants from the delivery room to the neonatal intensive care unit (NICU) in comparison with incubator transfers.

STUDY DESIGN

The study population comprised preterm singletons born between May and December 2019 in our maternity ward who did not require invasive ventilation. Physiological parameters (axillary temperature, heart rate, and fraction of inspired oxygen) of the newborns were recorded at prespecified steps during the transfers. The impact of the transfer mode on early blood glucose level, blood gas, and neonatal morbidities and mortality and the delay in the first SSC in the NICU and breastfeeding implementation and maintenance were also analyzed.

RESULTS

Twenty-eight preterm infants were transferred in incubators, and 29 infants were transferred using SSC. The SSC transfer induced heat loss (mean, -0.45°C; standard deviation [SD], 0.58). However, the decrease in temperature was similar to that observed during transfer in the incubator (mean, -0.30°C; SD, 0.49; p = 0.3). The transfer using SSC was not an independent factor associated with hypothermia at admission in the NICU (adjusted odds ratio, 2.6 [0.68-9.75]; p = 0.16). Neonatal morbidities and mortality were similar regardless of the transfer mode. The SSC transfer promoted early SSC in the neonatal unit (median hour [range], incubator 26 [2-126] vs SSC 13 [1-136], p = 0.03) and breastfeeding at discharge (incubator 35.7% vs SSC 69%, p = 0.01).

CONCLUSION

The SSC transfer of preterm infants was feasible and promoted earlier SSC and breastfeeding. Nevertheless, the SSC transfer, like the transfer in the incubator, induced moderate heat losses that exacerbated hypothermia at admission in the NICU. The improvement of thermal conservation during infant positioning and the continuation of SSC in the unit could help in preventing hypothermia.

KEY POINTS

· The SSC transfer was associated with heat loss during the transfer procedure.. · The SSC transfer promoted earlier SSC in the neonatal unit.. · The SSC transfer was likely to encourage breastfeeding..

Factors Influencing the Implementation of Infant Warming Devices Among Healthcare Workers in Malawian Hospitals

Objectives. Preterm infants are at risk of hypothermia. This study described the available infant warming devices (IWDs) and explored the barriers and facilitators to their implementation in neonates in Malawi. Methods. A qualitative descriptive study was conducted among 19 health care workers in Malawi from January to March 2020. All interviews were digitally recorded, transcribed, and managed using NVivo and analyzed using a thematic approach. Results. The warming devices included radiant warmers, Blantyre hot-cots, wall-mounted heaters, portable warmers, and incubators. Inadequate equipment and infrastructure and gaps in staff knowledge and capacity were reported as the main challenges to optimal IWD implementation. Caregiver acceptance was described as the main facilitator. Strategies to optimize implementation of IWD included continuous practical training and adequate availability of equipment and spare parts. Conclusion. Implementation of warming devices for the management of neonatal hypothermia is effective when there are adequate human and material resources.

Feasibility and acceptability of a novel biomedical device to prevent neonatal hypothermia and augment Kangaroo Mother Care in Kenya: Qualitative analysis of focus group discussions and key Informant Interviews

Hypothermia is a leading newborn complication, especially among premature and/or low birth weight infants. Within low/middle-income countries where incubators and radiant warmers are often in short supply, leading to gaps in the thermal care chain, neonatal hypothermia underlies high rates of newborn morbidity and mortality. Kangaroo Mother Care/Skin-to-skin care is an effective method for prevention of hypothermia in premature and low birthweight babies but can be very burdensome for families and healthcare providers. Our international multidisciplinary team has developed a prototype for a wearable biomedical device ("NeoWarm") to provide continuous thermal care and augment kangaroo mother care practices in low-resource settings. The objective of this study was to assess the feasibility and acceptability of NeoWarm and to obtain user design feedback for an early prototype from among adult end-users in Western Kenya. We performed key informant interviews (n = 17) among healthcare providers and 5 focus group discussions (FGDs) among 3 groups of adult stakeholders of premature babies, including: (1) parents/family members of premature babies aged 6 weeks or less (3 FGDs); (2) healthcare providers of newborns (e.g., nurses; physicians; 1 FGD); (3) community opinion leaders and stakeholders (e.g., traditional birth attendants; pastors; village elders; 1 FGD). Content and thematic analyses of transcripts indicate that NeoWarm is acceptable and feasible in promoting facility-based kangaroo mother care in the Kenyan setting. Novel findings derived from respondents include (1) the ability of the device to potentially overcome several barriers to traditional kangaroo mother care methods and (2) user-driven encouragement to expand the use case of the device to potentially include community-based kangaroo mother care and neonatal transport. User design feedback obtained during the interviews informed several key design iterations for subsequent prototypes of the device.

Hypothermia amongst neonatal admissions in Kenya: a retrospective cohort study assessing prevalence, trends, associated factors, and its relationship with all-cause neonatal mortality

Background

Reports on hypothermia from high-burden countries like Kenya amongst sick newborns often include few centers or relatively small sample sizes.

Objectives

This study endeavored to describe: (i) the burden of hypothermia on admission across 21 newborn units in Kenya, (ii) any trend in prevalence of hypothermia over time, (iii) factors associated with hypothermia at admission, and (iv) hypothermia's association with inpatient neonatal mortality.

Methods

A retrospective cohort study was conducted from January 2020 to March 2023, focusing on small and sick newborns admitted in 21 NBUs. The primary and secondary outcome measures were the prevalence of hypothermia at admission and mortality during the index admission, respectively. An ordinal logistic regression model was used to estimate the relationship between selected factors and the outcomes cold stress (36.0°C-36.4°C) and hypothermia (<36.0°C). Factors associated with neonatal mortality, including hypothermia defined as body temperature below 36.0°C, were also explored using logistic regression.

Results

A total of 58,804 newborns from newborn units in 21 study hospitals were included in the analysis. Out of these, 47,999 (82%) had their admission temperature recorded and 8,391 (17.5%) had hypothermia. Hypothermia prevalence decreased over the study period while admission temperature documentation increased. Significant associations were found between low birthweight and very low (0-3) APGAR scores with hypothermia at admission. Odds of hypothermia reduced as ambient temperature and month of participation in the Clinical Information Network (a collaborative learning health platform for healthcare improvement) increased. Hypothermia at admission was associated with 35% (OR 1.35, 95% CI 1.22, 1.50) increase in odds of neonatal inpatient death.

Conclusions

A substantial proportion of newborns are admitted with hypothermia, indicating a breakdown in warm chain protocols after birth and intra-hospital transport that increases odds of mortality. Urgent implementation of rigorous warm chain protocols, particularly for low-birth-weight babies, is crucial to protect these vulnerable newborns from the detrimental effects of hypothermia.

The NeoRoo mobile app: Initial design and prototyping of an Android-based digital health tool to support Kangaroo Mother Care in low/middle-income countries (LMICs)

Premature birth and neonatal mortality are significant global health challenges, with 15 million premature births annually and an estimated 2.5 million neonatal deaths. Approximately 90% of preterm births occur in low/middle income countries, particularly within the global regions of sub-Saharan Africa and South Asia. Neonatal hypothermia is a common and significant cause of morbidity and mortality among premature and low birth weight infants, particularly in low/middle-income countries where rates of premature delivery are high, and access to health workers, medical commodities, and other resources is limited. Kangaroo Mother Care/Skin-to-Skin care has been shown to significantly reduce the incidence of neonatal hypothermia and improve survival rates among premature infants, but there are significant barriers to its implementation, especially in low/middle-income countries (LMICs). The paper proposes the use of a multidisciplinary approach to develop an integrated mHealth solution to overcome the barriers and challenges to the implementation of Kangaroo Mother Care/Skin-to-skin care (KMC/STS) in LMICs. The innovation is an integrated mHealth platform that features a wearable biomedical device (NeoWarm) and an Android-based mobile application (NeoRoo) with customized user interfaces that are targeted specifically to parents/family stakeholders and healthcare providers, respectively. This publication describes the iterative, human-centered design and participatory development of a high-fidelity prototype of the NeoRoo mobile application. The aim of this study was to design and develop an initial ("A") version of the Android-based NeoRoo mobile app specifically to support the use case of KMC/STS in health facilities in Kenya. Key functions and features are highlighted. The proposed solution leverages the promise of digital health to overcome identified barriers and challenges to the implementation of KMC/STS in LMICs and aims to equip parents and healthcare providers of prematurely born infants with the tools and resources needed to improve the care provided to premature and low birthweight babies. It is hoped that, when implemented and scaled as part of a thoughtful, strategic, cross-disciplinary approach to reduction of global rates of neonatal mortality, NeoRoo will prove to be a useful tool within the toolkit of parents, health workers, and program implementors.

Neonatal Admission Temperature in Middle- and High-Income Countries

BACKGROUND AND OBJECTIVES

Despite being preventable, neonatal hypothermia remains common. We hypothesized that the proportion of newborns with hypothermia on admission would be high in all settings, higher in hospitals in middle-income countries (MIC) compared with high-income countries (HIC), and associated with morbidity and mortality.

METHODS

Using the Vermont Oxford Network database of newborns with birth weights 401 to 1500 g or 22 to 29 weeks' gestational age from 2018 to 2021, we analyzed maternal and infant characteristics, delivery room management, and outcomes by temperature within 1 hour of admission to the NICU in 12 MICs and 22 HICs.

RESULTS

Among 201 046 newborns, hypothermia was more common in MIC hospitals (64.0%) compared with HIC hospitals (28.6%). Lower birth weight, small for gestational age status, and prolonged resuscitation were perinatal risk factors for hypothermia. The mortality was doubled for hypothermic compared with euthermic newborns in MICs (24.7% and 15.4%) and HICs (12.7% and 7.6%) hospitals. After adjusting for confounders, the relative risk of death among hypothermic newborns compared with euthermic newborns was 1.21 (95% confidence interval 1.09-1.33) in MICs and 1.26 (95% confidence interval 1.21-1.31) in HICs. Every 1°C increase in admission temperature was associated with a 9% and 10% decrease in mortality risk in MICs and HICs, respectively.

CONCLUSIONS

In this large sample of newborns across MICs and HICs, hypothermia remains common and is strongly associated with mortality. The profound burden of hypothermia presents an opportunity for strategies to improve outcomes and achieve the neonatal 2030 Sustainable Development Goal.

Quality Improvement Study With Low-Cost Strategies to Reduce Neonatal Admission Hypothermia

Background Admission hypothermia is still an underappreciated major challenge for new-born survival in low-resource settings. The WHO recommends skin-to-skin contact as the simplest and safest way for maintaining the body temperature even during transportation. Quality improvement initiatives for hospitalised new-borns have shown benefits like a reduction in neonatal morbidity and mortality. This study was undertaken in a resource-constrained public hospital in southern India with an aim to reduce neonatal hypothermia at admission to <20%. Method It was a prospective, quality improvement study undertaken over 20 weeks. All neonates born in the selected delivery room (DR), requiring transportation to the neonatal intensive care unit, were included. The primary outcome indicators were the mean axillary temperature of neonates measured upon arrival at the neonatal intensive care unit and the percentage of neonates with hypothermia at admission. Improving the thermoregulatory practices and ambient DR temperature to >25˚C, transportation by the kangaroo method, and a portable infant warmer (PIW) were implemented in three successive Plan-Do-Study-Act (PDSA) cycles. Result In the third PDSA cycle, the mean admission temperature (36.51˚C ±0.82) was significantly (p<0.0001) higher when compared with the baseline phase (35.41˚C ±1.09), and there was a significant (p<0.001) reduction in hypothermia (33.33%). The aim was achieved in the last two weeks of the third cycle with a reduction in hypothermia to 17.6%. Conclusion Implementation of appropriate thermoregulatory practices and low-cost strategies like the kangaroo method and PIW using quality improvement methodology significantly reduced admission hypothermia.

Admission Hypothermia and Factors Associated with Mortality among Admitted Hypothermic Preterm Neonates in Neonatal Intensive Care Units of Public Hospitals of Addis Ababa, Ethiopia

Background

Limited knowledge on the proportion of admission hypothermia and factors of death in hypothermic preterm neonates is hindering early and appropriate interventions in Ethiopia. Thus, studies on the proportion of admission hypothermia and factors of death in hypothermic preterm neonates are critical to enhancing preterm infants' survival.

Methods

Hospital-based cross-sectional study was conducted on 398 participants using the systematic sampling method from October 10, 2021, to December 15, 2022. A pretested data extraction tool was used to collect data. EpiData version 4.6 and STATA version 16 were used for data entry and analysis. Multivariable logistic regression analysis evaluated the association between independent and outcome variables with a 95% confidence interval (CI). Hosmer and Lemeshow test and variance inflation factor were assessed to check model fitness and collinearity, respectively. Pvalue < 0.05 was considered statistically significant.

Result

Of the 398 admitted preterm neonates, 331(83.2%) had hypothermia at admission. Factors that were significantly associated with mortality included outborn babies [Adjusted hazard ratio (AOR) = 2.18 : 95% CI (1.03-4.62)], GA less than 32 weeks [AOR = 6.64 : 95% CI (1.87-13.58)], weight less than 1500 gram [AOR = 7.91 : 95% CI (1.21-15.38)], thrombocytopenia [AOR = 3.36 : 95% CI (1.49-7.58)], and kangaroo mother care [AOR = 0.38 : 95% CI (0.16-0.88)].

Conclusion

The proportion of admission hypothermia was high. Outborn babies, birth weight less than 1500 gram, gestational age < 32 weeks, being thrombocytopenic, and lack of kangaroo mother care were identified as risk factors for hypothermic preterm neonatal mortality. Preterm labor prevention, improved inborn delivery, and kangaroo mother care may alleviate the high proportion of admission hypothermia and related mortalities in preterm neonates.

Factors associated with hypothermia within the first 6 hours of life in infants born at ≥340 weeks' gestation: a multivariable analysis

BACKGROUND

Lack of appropriate temperature management has been associated with significant adverse outcomes in preterm and low birthweight neonates. There is a lack of similar investigations in the late preterm (34⁰-36⁶) and term (≥37⁰) neonate population. Our aim was to identify key risk factors as well as clinical outcomes associated with hypothermia in this population.

METHODS

A retrospective chart review was conducted at the Ottawa Hospital including all eligible infants ≥34⁰ weeks' gestation over a one-month period in November 2020. Infant, maternal, and delivery room variables were collected, including prematurity, maternal temperature, delivery mode, birthweight, and premature rupture of membranes, as well as clinical outcomes such as NICU/SCN admission and length of stay. Regression models were generated, adjusted for covariates, and stepwise regression was performed.

RESULTS

Four hundred forty infants were included in the analysis; 26.8% (118/440) were hypothermic within 6 hours of delivery. In the multivariable analysis, prematurity, low 5 minute Apgar score (< 7) or need for resuscitation, maternal hypertension, and absence of premature rupture of membranes > 18 hours or suspected maternal infection were significantly associated with hypothermia within 6 hours of delivery (p < 0.05). Multivariable analysis of clinical outcomes demonstrated a significant association between hypothermia within 6 hours of delivery and NICU/SCN admission (OR = 2.87; 95% CI 1.36, 6.04), need for respiratory support or diagnosis of respiratory distress syndrome (OR = 3.94; 95% CI 1.55, 10.50), and length of stay (exp(β) = 1.20; 95% bootstrap CI 1.04, 1.37).

CONCLUSIONS

Our results suggest there are similar factors associated with hypothermia in our study population of infants born at ≥34⁰ weeks' gestation compared to prior studies in preterm and low-birthweight infants. Furthermore, hypothermia is associated with higher risk of adverse outcomes, which highlights the need to prevent hypothermia in all newborns.

Ending Neonatal Deaths From Hypothermia in Sub-Saharan Africa: Call for Essential Technologies Tailored to the Context

Neonatal death represents a major burden in Sub-Saharan Africa (SSA), where the main conditions triggering mortality, such as prematurity, labor complications, infections, and respiratory distress syndrome, are frequently worsened by hypothermia, which dramatically scales up the risk of death. In SSA, the lack of awareness on the procedures to prevent hypothermia and the shortage of essential infant devices to treat it are hampering the reduction of neonatal deaths associated to hypothermia. Here, we offer a snapshot on the current available medical solutions to prevent and treat hypothermia in SSA, with a focus on Kenya. We aim to provide a picture that underlines the essential need for infant incubators in SSA. Specifically, given the inappropriateness of the incubators currently on the market, we point out the need for reinterpretation of research in the field, calling for technology-based solutions tailored to the SSA context, the need, and the end-user.