Maternal recorded voice played to preterm infants in incubators reduces her own depression, anxiety and stress: a pilot randomized control trial.

OBJECTIVE: To study the effects of playing mother's recorded voice to preterm infants in the NICU on their mothers' mental health as measured by the Depression, Anxiety and Stress Scale -21 (DASS-21) questionnaire. DESIGN/METHODS: This was a pilot single center prospective randomized controlled trial done at a level IV NICU. The trial was registered at clinicaltrials.gov (NCT04559620). Inclusion criteria were mothers of preterm infants with gestational ages between 26wks and 30 weeks. DASS-21 questionnaire was administered to all the enrolled mothers in the first week after birth followed by recording of their voice by the music therapists. In the interventional group, recorded maternal voice was played into the infant incubator between 15 and 21 days of life. A second DASS-21 was administered between 21 and 23 days of life. The Wilcoxon rank-sum test was used to compare DASS-21 scores between the two groups and Wilcoxon signed-rank test was used to compare the pre- and post-intervention DASS-21 scores. RESULTS: Forty eligible mothers were randomized: 20 to the intervention group and 20 to the control group. The baseline maternal and neonatal characteristics were similar between the two groups. There was no significant difference in the DASS-21 scores between the two groups at baseline or after the study intervention. There was no difference in the pre- and post-interventional DASS-21 scores or its individual components in the experimental group. There was a significant decrease in the total DASS-21 score and the anxiety component of DASS-21 between weeks 1 and 4 in the control group. CONCLUSION: In this pilot randomized control study, recorded maternal voice played into preterm infant's incubator did not have any effect on maternal mental health as measured by the DASS-21 questionnaire. Data obtained in this pilot study are useful in future RCTs (Randomized Controlled Trial) to address this important issue.

Effects of an early transfer from incubator to a warming crib in very low birthweight preterm infants.

PURPOSE: Very low birth weight infants are cared for postnatally in the incubator because of adverse consequences of hypothermia. Data on the optimal weight of transfer to a warming crib are rare. The aim of this study was to determine the course of temperature and body weight during a standardized transfer to a warming crib at a set weight. METHODS: Prospective intervention study in very low birthweight infants who were transferred from the incubator to a warming crib at a current weight between 1500 g and 1650 g. RESULTS: No infant had to be transferred back to an incubator. Length of hospital stay was equal compared to a historical cohort from the two years directly before the intervention. The intervention group showed an increase in the volume fed orally on the day after transfer to the warming crib, although this did not translate into an earlier discontinuation of gavage feedings. Compared to the historical group, infants in the intervention group could be transferred to an unheated crib at an earlier postmenstrual age and weight. CONCLUSIONS: Early transfer from the incubator to a warming crib between 1500 g and 1650 g is feasible and not associated with adverse short-term events or outcomes. TRIAL REGISTRATION: DRKS-IDDRKS00031832.

Perspectives from military neonatal transport: past, present, and future.

This article traces the historical development of neonatal transport, from ancient Greek mythology to the modern era, with a particular focus on the contributions of U.S. military aviation. The narrative begins with early efforts in thermoregulation through stationary incubators and progresses to the pivotal role of aerial hospitals during World War II. Post-WWII, the establishment of neonatal transport services in New York and advancements in incubator technology set the stage for further innovation. The U.S. military's involvement in neonatal transport, initiated in the 1970s, witnessed significant milestones, including the adaptation of ECMO technology for air transport. The narrative unfolds through the lens of U.S. military neonatology in the Western Pacific, particularly at Clark Air Base. The article concludes with insights into the U.S. Indo-Pacific Command's neonatal transport mission, highlighting challenges faced during the SARS-CoV-2/COVID-19 pandemic and the development of specialized infection containment transport systems.

Body Size, Cerebral Blood Flow, Ambient Temperature, and Relative Brain Temperatures in Newborn Infants under Incubator Care.

Subtle changes in body temperature affect the outcomes of ill newborns. However, the temperature profile of neonatal brains remains largely unknown. In open-cot care, increased cerebral perfusion is correlated with higher superficial brain temperatures. This study investigated the dependence of brain temperature (relative to rectal temperature) on ambient temperature, body size, cerebral perfusion, and metabolism in infants receiving incubator care. Rectal, scalp, and brain temperatures, superior vena cava flow, and brain oxygenation were assessed using echocardiography, thermo-compensatory temperature monitoring, and near-infrared spectroscopy in 60 newborns. These infants had a mean postconceptional age of 36.9 (2.2) weeks and weighed 2348 (609) g at the time of evaluation. The ambient temperature was maintained at 30.0 (1.0) °C. A higher rectal temperature was associated with greater postconceptional age (p = 0.002), body weight (p < 0.001), and head circumference (p < 0.001). Relative scalp, superficial brain, and deep brain temperatures were associated with smaller head circumference (p < 0.001, p = 0.030, and p = 0.015, respectively) and superior vena cava flow (p = 0.002, p = 0.003, and p = 0.003, respectively). In infants receiving incubator care, larger head sizes and increased brain perfusion were associated with lower relative scalp and brain temperatures. When considered alongside previous reports, cerebral perfusion may contribute to maintaining stable cerebral tissue temperature against ambient temperature changes.

IoT-based incubator monitoring and machine learning powered alarm predictions.

BACKGROUND: Incubators, especially the ones for babies, require continuous monitoring for anomaly detection and taking action when necessary. OBJECTIVE: This study aims to introduce a system in which important information such as temperature, humidity and gas values being tracked from incubator environment continuously in real-time. METHOD: Multiple sensors, a microcontroller, a transmission module, a cloud server, a mobile application, and a Web application were integrated Data were made accessible to the duty personnel both remotely via Wi-Fi and in the range of the sensors via Bluetooth Low Energy technologies. In addition, potential emergencies were detected and alarm notifications were created utilising a machine learning algorithm. The mobile application receiving the data from the sensors via Bluetooth was designed such a way that it stores the data internally in case of Internet disruption, and transfers the data when the connection is restored. RESULTS: The obtained results reveal that a neural network structure with sensor measurements from the last hour gives the best prediction for the next hour measurement. CONCLUSION: The affordable hardware and software used in this system make it beneficial, especially in the health sector, in which the close monitoring of baby incubators is vitally important.

Use of access port covers in transport incubators to improve thermoregulation during neonatal transport.

Hypothermia in newborns increases the risk of health complications and mortality. This study aimed to evaluate the effectiveness of using covers over snap-open access ports of a transport incubator to maintain the temperature within. The change in temperature inside the transport incubator was evaluated over a 15-min period at three ambient room temperatures (20 °C, 24 °C, and 28 °C), as well as for three snap-open access port conditions: closed, where ports are closed; open, where the two ports on one side are open; and covered, where the two ports on one side are open but a cover is used. The automatic temperature control of the incubator was set to 37 °C for all conditions. We repeated the same experiments three times. The temperature decrease inside the incubator was greater for the open than for the closed or covered access port conditions at all three 4 °C-increasing room temperatures (p < 0.05). The incubator temperature decreased as a function of decreasing room temperature only for the open condition, with no significant difference between the closed and covered conditions. Therefore, snap-open access port covers provide an option to maintain a constant temperature within the transport incubator, which may lower the risk of neonatal hypothermia.

Exploring Environmental Factors Contributing to Fluid Loss in Diapers Placed in Neonatal Incubators.

PURPOSE: Assessing fluid output for infants in the neonatal intensive care unit is essential to understanding fluid and electrolyte balance. Wet diaper weights are used as standard practice to quantify fluid output; yet, diaper changes are intrusive and physiologically distressing. Less frequent diaper changes may have physiologic benefits but could alter diaper weights following extended intervals. METHODS: This pilot study examined the impact of initial diaper fluid volume, incubator air temperature and humidity, and diaper brand on wet diaper weight over time. Baseline fluid volume was instilled, and then diapers were placed in a neonatal incubator. Wet diaper weight was assessed longitudinally to determine changes in fluid volume over time. A factorial design with repeated measures (baseline, 3 hours, and 6 hours) was used to explore the effects of diaper brand (brand 1 vs brand 2), baseline fluid volume (3 mL vs 5 mL), and incubator temperature (28°C vs 36°C) and humidity (40% vs 80%) on the trajectory of weight in 80 diapers. RESULTS: Wet diaper weight was significantly reduced over 6 hours ( P < .005). However, wet diaper weight increased in 80% humidity, but decreased in the 40% humidity over time ( P < .0001). Baseline fluid volume, incubator temperature, and diaper brand did not influence wet diaper weight over time (all P > .05). IMPLICATIONS: Understanding environmental factors that influence the trajectory of wet diaper weight may support clinicians in optimizing the interval for neonatal diaper changes to balance the impact of intrusive care with need to understand fluid volume loss.

A novel method for conformity assessment testing of infant incubators for post-market surveillance purposes.

BACKGROUND: Premature born infants or infants born sick require immediate medical attention and decreasing the stress imposed onto their body by the environment. Infant incubators provide an enclosed environment that can be controlled to fit the needs of the infant. As such, their performance must be consistent and without significant deviations. The only manner to ensure this is by post-market surveillance (PMS) focused on evaluation of both safety and performance. The new Medical Device Regulation (MDR) defines medical device post-market surveillance (PMS) as performed by independent, third-party, notified bodies more strategically in hope to improve traceability of device performance. However, there is still an apparent gap in terms of standardised conformity assessment testing methods. OBJECTIVE: This paper proposes a novel method for conformity assessment testing of infant incubators for post-market surveillance purposes. METHOD: The method was developed based on guidelines for devices providing measurements laid out by the International Organisation of Legal Metrology (OIML). The methodology was validated during a four year period in healthcare institutions of all levels. RESULTS: The developed method was validated between 2018 and 2021 in healthcare institutions of all levels. The results obtained during validation suggest that conformity assessment testing of infant incubators as a method used during PMS contributes to significant improvement in devices' accuracy and reliability. CONCLUSION: A standardized approach in conformity assessment testing of infant incubators during PMS, besides increasing reliability of the devices, is the first step in digital transformation of management of these devices in healthcare institutions opening possibility for use of artificial intelligence.

A quasi experimental study to compare thermo-regulator blanket with conventional method (incubator) for temperature regulations in preterm, low birth weight neonates landing at emergency department of a tertiary care paediatric facility.

Objective: To compare incubator and thermal blanket for thermoregulation in preterm and low birth weight neonates. METHODS: The pilot study was conducted from January to March 2018 at the emergency department of the National Institute of Child Health, Karachi, and comprised preterm and low birth weight neonates without any co-morbidity who were randomised to control and interventional groups. Data was collected using a proforma about demographics, weight, gestational age and brief clinical history. Temperature, blood pressure and pulse were monitored along with other routine care after every 15 minutes in the incubator, and the same procedure was adopted for thermal blankets. Data was analysed using Statistical Package for Social Sciences (SPSS) Version 23. RESULTS: Of the 38 subjects, 19(50%) each were cases and controls. The mean gestational age between the groups was not significantly different (p>0.05). Temperature for the first 60 minutes remained similar in the two groups, but at 75 minutes and onwards, the incubator showed a significantly better results (p<0.05). Conclusion: Thermal blankets can sufficiently provide a hyperthermic environment to the neonates, but an incubator is a more reliable option to provide sustained temperature.

Body size measuring techniques enabling stress-free growth monitoring of extreme preterm infants inside incubators: A systematic review.

INTRODUCTION: Growth monitoring of preterm infants is essential for assessing the nutritional effects on their growth. The current growth monitoring techniques are too stressful, however, for the smallest preterm infants. We performed a systematic review to summarize studies on stress-free techniques for measuring the body size of preterm infants inside incubators other than the traditional calliper and tape measure-based instruments. METHODS: We searched four online literature databases: Embase, Medline, Web of Science Core Collection, and Cochrane, using search terms related to patients (neonates, infants, children) and body size measuring techniques. By means of expert judgement we assessed the techniques' suitability for stress-free body size measurement of an infant lying in an incubator. As a criterion for suitability, we used an imaginary ideal technique. RESULTS: Twenty-six studies were included in this review. In 24 studies, the technique for body size measurement was related to 3D technology, and the majority of these studies acknowledged clinical superiority of 3D over 2D data. Two 3D techniques were assessed as suitable for stress-free measurement of preterm infants inside incubators. The first technique used a commercially available 3D handheld scanner which needed 3D postprocessing to derive measurement data. The second technique used a self-developed stereoscopic vision system. CONCLUSIONS: 3D volumetric parameters have higher clinical value for growth monitoring than 2D. In addition, contactless 3D measurements enable stress-free growth monitoring of even the smallest preterm infants. However, the time-consuming 3D postprocessing challenges the usability of 3D techniques. Regrettably, none of the identified suitable 3D techniques met all our requirements of an ideal all-in-one body size measuring technique for extreme preterm infants. Handheld 3D scanning might have the best properties for developing this ideal technique.

Incubator humidity and temperature control in infants born at 22-23 weeks' gestation.

BACKGROUND: Preterm infants, especially those born at ≤23 gestational weeks (GW), present with extremes in insensible water loss (IWL) and changes in water balance. AIMS: To prevent water loss from the skin and achieve skin maturation without infection, we investigated transepidermal water loss (TEWL), IWL from the skin (IWL-s), and electrolyte balance with differences in high incubator humidity and temperature control from birth to postnatal 1 month in 22-23 GW and 24-25 GW infants. STUDY DESIGN: Prospective cohort study. SUBJECTS: Extremely preterm infants born at 22-23 GW (n = 11) and 24-25 GW (n = 11), admitted to the neonatal intensive care unit between September 2018 and October 2019. OUTCOME MEASURES: Total fluid intake (TFI), fluid output volume, TEWL, IWL-s, and electrolyte balance were compared between the two groups with controlled incubator humidity and temperature, gradually decreasing the humidity and ambient temperature from 95% to 50% and from 37.0 to 34.0 °C, respectively, while maintaining the central body temperature at 36.5-37.5 °C. RESULTS: TEWL and IWL-s between the 22-23 and 24-25 GW was not significantly different for infants at postnatal age. No significant difference in electrolyte imbalance was noted between the two groups, within the first 7 days. Differences in TEWL and IWL-s were eliminated with corresponding humidity and temperature adjustments. CONCLUSIONS: Incubator humidity and temperature control should aid management of 22-23 GW infants to reduce IWL, facilitate skin maturation, and prevent infection.

Desinfecção de incubadoras usadas em Unidades de Cuidados Intensivos Neonatais: revisão integrativa / Desinfección de incubadoras usadas en Unidades de Cuidados Intensivos Neonatales: revisión integradora / Disinfection of incubators used in Neonatal Intensive Care Units: an integrative review

Resumo Objetivo Analisar as evidências científicas de práticas de desinfecção de incubadoras usadas em Unidades de Cuidados Intensivos Neonatais. Métodos Revisão integrativa de literatura, realizada de junho a julho de 2020, nas bases de dados: LILACS, SciELO, CINAHL, SCOPUS, Web of Science e MEDLINE. Os achados foram organizados conforme o fluxograma PRISMA e discutidos de acordo com a literatura pertinente. Resultados Dos 780 artigos encontrados, apenas cinco contemplaram os critérios de inclusão. Os saneantes utilizados foram: cloreto de didecildimetilamônio, polihexametilenobiguanida e Peróxido de Hidrogênio (VHP); cloreto de didecildimetilamônio; N-(3-aminopropyl)-N-dodécylpropane-1,3-diamine; cloreto de didecildimetilamônio e limpeza a vapor; água com detergente para limpeza no balde e água sanitária (200mg/L) e desinfectante Umonium38® a 2,5%. Há diversidade de opções para desinfecção das incubadoras, com variação de métodos e frequência de limpeza. Os saneantes utilizados foram eficazes, apontando para redução da carga microbiana. Conclusão Observou-se uma variedade de procedimentos e produtos que podem ser utilizados para limpeza e desinfecção das incubadoras. Os procedimentos de desinfecção favoreceram a redução da contaminação da superfície. No entanto, a presença de micro-organismos, mesmo que reduzida, alerta sobre o risco à segurança do paciente.

Resumen Objetivo Analizar las evidencias científicas de prácticas de desinfección de incubadoras usadas en Unidades de Cuidados Intensivos Neonatales. Métodos Revisión integradora de literatura, realizada de junio a julio de 2020, en las bases de datos: LILACS, SciELO, CINAHL, SCOPUS, Web of Science y MEDLINE. Los resultados fueron organizados de acuerdo con el diagrama de flujo PRISMA y discutidos de acuerdo con la literatura pertinente. Resultados De los 780 artículos encontrados, solamente cinco contemplaron los criterios de inclusión. Los desinfectantes utilizados fueron: cloruro de didecildimetilamonio, polihexametilen biguanida y peróxido de hidrógeno (VHP); cloruro de didecildimetilamonio; N-(3-aminopropil)-N-dodecilpropano-1,3-diamina; cloruro de didecildimetilamonio y limpieza a vapor; agua con detergente para limpieza en el balde y cloro (200mg/L) y desinfectante Umonium38® al 2,5 %. Existe una diversidad de opciones para la desinfección de las incubadoras, con variación de métodos y frecuencia de limpieza. Los desinfectantes utilizados fueron eficaces, lo que indica una reducción de la carga microbiana. Conclusión Se observó una variedad de procedimientos y de productos que se pueden utilizar para la limpieza y la desinfección de las incubadoras. Los procedimientos de desinfección favorecieron la reducción de la contaminación de la superficie. Sin embargo, la presencia de microorganismos, aunque reducida, alerta respecto al riesgo a la seguridad del paciente.

Abstract Objective To analyze the scientific evidence of incubator disinfection practices used in Neonatal Intensive Care Units. Methods This is an integrative literature review, conducted from June to July 2020, in the LILACS, SciELO, CINAHL, Scopus, Web of Science and MEDLINE databases. The findings were organized according to the PRISMA flowchart and discussed according to pertinent literature. Results Of the 780 articles found, only five met the inclusion criteria. The sanitizers used were: didecyldimethylammonium chloride, PHMB and vaporized hydrogen peroxide (VHP); didecyldimethylammonium chloride; N-(3-aminopropyl)-N-dodecylpropane-1,3-diamine; didecyldimethylammonium chloride and steam cleaning; water with detergent for cleaning in the bucket and bleach (200 mg/L) and 2.5% Umonium38® disinfectant. There is a diversity of options for disinfection of incubators, with variation of methods and frequency of cleaning. The sanitants used were effective, pointing to reduction of microbial load. Conclusion A variety of procedures and products were observed that can be used for cleaning and disinfection of incubators. Disinfection procedures favored the reduction of surface contamination. However, the presence of microorganisms, even if reduced, alerts about the risk to patient safety.

[Study on Adverse Events of Infant Incubator Products].

OBJECTIVE: To investigate the risk of adverse events in the clinical use of infant incubators of three kinds of national medical devices in Zhejiang Province. METHODS: Semi-quantitative matrix analysis was used to analyze the risk of adverse events related to incubator products in Zhejiang province from August 2018 to August 2019. RESULTS: Through the risk analysis of 213 cases of adverse events of infant incubator product, the risk point and degree of the product in practical clinical application were evaluated. CONCLUSIONS: Through the evaluation results of the production enterprises, medical institutions put forward relevant recommendations to reduce the risk of product use to prevent the recurrence of serious adverse events in the use of the product and spread.

Immediate "Kangaroo Mother Care" and Survival of Infants with Low Birth Weight.

BACKGROUND: "Kangaroo mother care," a type of newborn care involving skin-to-skin contact with the mother or other caregiver, reduces mortality in infants with low birth weight (<2.0 kg) when initiated after stabilization, but the majority of deaths occur before stabilization. The safety and efficacy of kangaroo mother care initiated soon after birth among infants with low birth weight are uncertain. METHODS: We conducted a randomized, controlled trial in five hospitals in Ghana, India, Malawi, Nigeria, and Tanzania involving infants with a birth weight between 1.0 and 1.799 kg who were assigned to receive immediate kangaroo mother care (intervention) or conventional care in an incubator or a radiant warmer until their condition stabilized and kangaroo mother care thereafter (control). The primary outcomes were death in the neonatal period (the first 28 days of life) and in the first 72 hours of life. RESULTS: A total of 3211 infants and their mothers were randomly assigned to the intervention group (1609 infants with their mothers) or the control group (1602 infants with their mothers). The median daily duration of skin-to-skin contact in the neonatal intensive care unit was 16.9 hours (interquartile range, 13.0 to 19.7) in the intervention group and 1.5 hours (interquartile range, 0.3 to 3.3) in the control group. Neonatal death occurred in the first 28 days in 191 infants in the intervention group (12.0%) and in 249 infants in the control group (15.7%) (relative risk of death, 0.75; 95% confidence interval [CI], 0.64 to 0.89; P = 0.001); neonatal death in the first 72 hours of life occurred in 74 infants in the intervention group (4.6%) and in 92 infants in the control group (5.8%) (relative risk of death, 0.77; 95% CI, 0.58 to 1.04; P = 0.09). The trial was stopped early on the recommendation of the data and safety monitoring board owing to the finding of reduced mortality among infants receiving immediate kangaroo mother care. CONCLUSIONS: Among infants with a birth weight between 1.0 and 1.799 kg, those who received immediate kangaroo mother care had lower mortality at 28 days than those who received conventional care with kangaroo mother care initiated after stabilization; the between-group difference favoring immediate kangaroo mother care at 72 hours was not significant. (Funded by the Bill and Melinda Gates Foundation; Australian New Zealand Clinical Trials Registry number, ACTRN12618001880235; Clinical Trials Registry-India number, CTRI/2018/08/015369.).

Examining Use of Dual Point Temperature Display in Servo-Control With Early Preterm Infants.

BACKGROUND: Previously, we recorded periods of time with foot higher than abdominal temperatures in association with infection in preterm infants. Monitoring dual temperatures may be an important tool to assess infant instability. Currently, incubators cannot measure and display dual temperatures in servo-control mode. PURPOSE: To examine the usability of GE Healthcare's Giraffe OmniBed with research software to measure, display, and record dual temperatures, and their differences while in servo-control. In addition, nurses' perceptions of the use and display of dual temperatures and differences were evaluated. METHODS: A multiple-case, mixed-methods design. Abdominal and foot temperatures were measured, displayed, and stored for 28 days for 14 preterm infants. Nurses were surveyed for satisfaction and preferences with the dual temperature display. Nurses noted abnormal temperature differences and infant condition in bedside journals. RESULTS: Study infants were 26 to 31 weeks of gestational age and 670 to 1410 g. Abdominal, foot, and the abdominal-foot temperature difference was measured, recorded, and downloaded successfully in all infants over all days. Nurses liked using dual temperature display with the abdominal-foot temperature difference. Surveys indicated preferences for larger displays and alarms for abnormal values. Thermal instability, stimulation, and thermistor detachment were associated with abnormal thermal gradients. Two exemplar cases are presented. IMPLICATIONS FOR PRACTICE: Monitoring dual temperatures adds information to the clinical assessment. IMPLICATIONS FOR RESEARCH: Studies are needed to examine relationships between abnormal thermal gradients and infections, infant stability, and nursing care along with the underlying physiologic mechanisms. Studies are needed for wireless dual temperature monitoring.

Suitability of Hood Geometry for Design of a PCM Neonate Incubator for Resource-Limited Clinical Applications.

To reduce dependence on electric-powered incubators, a number of alternate heat sources have been proposed. Phase change materials (PCM) are one of such because of their availability and cost effectiveness in rural areas. This study intends to explore the use of phase change material (PCM) such as paraffin wax as an alternative heat source over a variety of incubator hood geometries. This study presents three incubator hood geometries and their respective effects on maximum hood temperatures and time to reach these temperatures for a mainstream incubator. The three designs, cubic, pyramidal, and oval, were created using CAD software; mathematical computations for heat transfer analysis were undertaken using COMSOL Multiphysics software. Results show the maximum temperatures reached in the hoods were 308, 314.5, and 315 K for the cubic, pyramidal, and oval-shaped geometries respectively. This offers a promising application of PCM-based as a choice material for incubator design for rural applications.

Persistent microbial contamination of incubators despite disinfection.

BACKGROUND: In neonatal intensive care units (NICUs), hygiene and disinfection measures are pivotal to protect neonates from nosocomial infections. This study aimed to evaluate the efficacy of the classical incubators disinfection procedure and to follow-up neonates housed in the incubators for the development of late-onset sepsis (LOS). METHODS: In a tertiary NICU, 20 incubators were monitored for bacterial contamination at three times: before disinfection, after disinfection, and 24 h after turning on and housing a new neonate. Clinical data of neonates housed in these incubators were retrieved from the medical records. RESULTS: All 20 incubators were contaminated at the 3 times of the study, mainly on mattresses and balances. Coagulase-negative Staphylococci, Enterococcus, and Bacillus-resisted disinfection while enterobacteria and Staphylococcus aureus were eradicated. After 24 h, the bacterial colonisation was similar to the one observed before disinfection. The bacteria isolated on incubators were also found on the caregivers' hands. During the study, two preterm neonates developed a LOS involving a bacterial species that has been previously isolated in their incubator. CONCLUSION: Pathogenic contaminants persist on incubators despite disinfection and represent a risk for subsequent infection in preterm neonates. Improvements are needed concerning both the disinfection process and incubator design. IMPACT: Procedures of disinfection that are usually recommended in NICUs do not allow for totally eradicating bacteria from incubators. Preterm neonates are housed in incubators colonised with potentially pathogenic bacteria. The control of nosocomial infections in NICUs requires further researches concerning mechanisms of bacterial persistence and ways to fight against environmental colonisation.

Thermal management with and without servo-controlled system in preterm infants immediately after birth: a multicentre, randomised controlled study.

BACKGROUND: The thermal servo-controlled systems are routinely used in neonatal intensive care units (NICUs) to accurately manage patient temperature, but their role during the immediate postnatal phase has not been previously assessed. OBJECTIVE: To compare two modalities of thermal management (with and without the use of a servo-controlled system) immediately after birth. STUDY DESIGN AND SETTING: Multicentre, unblinded, randomised trial conducted 15 Italian tertiary hospitals. PARTICIPANTS: Infants with estimated birth weight <1500 g and/or gestational age <30+6 weeks. INTERVENTION: Thermal management with or without a thermal servo-controlled system during stabilisation in the delivery room. PRIMARY OUTCOME: Proportion of normothermia at NICU admission (axillary temperature 36.5°C-37.5°C). RESULTS: At NICU admission, normothermia was achieved in 89/225 neonates (39.6%) with the thermal servo-controlled system and 95/225 neonates (42.2%) without the thermal servo-controlled system (risk ratio 0.94, 95% CI 0.75 to 1.17). Thermal servo-controlled system was associated with increased mild hypothermia (36°C-36.4°C) (risk ratio 1.48, 95% CI 1.09 to 2.01). CONCLUSIONS: In very low birthweight infants, thermal management with the servo-controlled system conferred no advantage in maintaining normothermia at NICU admission, while it was associated with increased mild hypothermia. Thermal management of preterm infants immediately after birth remains a challenge. TRIAL REGISTRATION NUMBER: NCT03844204.