Updates for the Neonatal Resuscitation Program and Resuscitation Guidelines

Comparative evaluation of axillary and rectal temperatures across different gestational ages in newborns admitted to the neonatal intensive care unit: a cross-sectional study

OBJECTIVE

Maintaining normothermia is crucial for neonatal survival, especially in preterm infants prone to temperature instability. This study evaluates the correlation and variability between axillary and rectal temperatures at Neonatal Intensive Care (NICU) admission across gestational age ranges of 23-28, 29-32, 33-36, and ≥ 37 weeks, aiming to inform improved neonatal thermal management strategies.

METHODS

This cross-sectional study was conducted at King Abdulaziz Medical City, Riyadh, from October 2023 to April 2024, involving 160 infants. Admission temperatures were measured using digital thermometers. Data analysis included ANOVA/Kruskal-Wallis for continuous variables, Chi-square tests for categorical data, Bland-Altman method for agreement assessment, and Pearson correlation coefficients to evaluate temperature correlations.

RESULTS

Mean axillary temperature increased from 36.4 °C in the 23-28 weeks gestational group, to 36.5 °C in the 29-32 weeks group, and to 36.7 °C in the 33-36 weeks and ≥ 37 weeks groups, (p = 0.033). Rectal temperature increased from 36.5 °C in the 23-28 weeks group, to 36.6 °C in the 29-32 weeks group, and reached 36.8 °C in both the 33-36 weeks and ≥ 37 weeks groups (p = 0.006). Notable differences between measurement methods were observed in the 33-36 and ≥ 37 weeks groups (p < 0.001), with less pronounced differences in the 23-28 and 29-32 weeks groups. While temperature differences between rectal and axillary measurements remained consistent across all groups at 0.1 °C (p = 0.779), neonatal outcomes varied significantly across gestational age groups, with younger infants exhibiting lower survival rates (p < 0.001), higher incidences of hypoglycemia (p < 0.001) and sepsis (p < 0.001), and extended durations of ventilation (p < 0.001) and hospital stay (p < 0.001). Strong correlations between rectal and axillary temperature were found across all age ranges (Pearson coefficients: 0.953 for 23-28 weeks, 0.762 for 29-32 weeks, 0.910 for 33-36 weeks, and 0.761 for ≥ 37 weeks; all p < 0.001). Bland-Altman analysis indicated higher variability in agreement for younger preterm groups, showing limits of agreement ranging from - 0.5 to 0.65 °C for 23-28 weeks and - 0.5 to 0.69 °C for 29-32 weeks, improving in older groups with - 0.2 to 0.4 °C for 33-36 weeks and similarly narrow ranges for ≥ 37 weeks.

CONCLUSION

Both rectal and axillary temperatures showed variation across different age groups, exhibiting a substantial overall correlation. Notable differences between the two methods were observed in the 33-36 weeks and ≥ 37 weeks groups. Younger preterm infants demonstrated greater variability, with enhanced agreement observed in older infants.

XIII Consenso SIBEN sobre Traslado Neonatal: Establecer protocolos estructurados para el proceso del traslado neonatal podría mejorar los desenlaces

La centralización de los partos de alto riesgo en los hospitales con el más alto nivel de atención es fundamental para ampliar el margen de seguridad materno-neonatal y mejorar los desenlaces. Por lo tanto, es altamente recomendable trasladar oportunamente a las pacientes gestantes portadoras de embarazos de alto riesgo y/o con amenazas de parto pretérmino a centros de atención terciaria, sin embargo, no siempre es posible anticipar los riesgos antenatalmente, lo cual resulta en la necesidad de trasladar a neonatos en estado crítico. Lamentablemente, la movilización de los recién nacidos compromete aún más su estado de salud, especialmente en los países latinoamericanos. El presente trabajo resume los resultados del XIII Consenso Clínico de SIBEN de Traslado Neonatal, en el cual colaboraron 65 miembros de SIBEN, neonatólogos y licensiados en enfermería de 14 países de Iberoamérica, que participaron activamente durante el 2022, antes, durante y después de la reunión presencial que se llevó a cabo en Mérida, Yucatán, México el 12 de noviembre del 2022. En esta reunión se consensuaron las recomendaciones aquí vertidas.

Neonatal Resuscitation and Delivery Room Care: A Changing Global Landscape

With 98% of neonatal deaths occurring in low- and middle-income countries (LMICs), leading health organizations continue to focus on global reduction of neonatal mortality. The presence of a skilled clinician at delivery has been shown to decrease mortality. However, there remain significant barriers to training and maintaining clinician skills and ensuring that facility-specific resources are consistently available to deliver the most essential, evidence-based newborn care. The dynamic nature of resource availability poses an additional challenge for essential newborn care educators in LMICs. With increasing access to advanced neonatal resuscitation interventions (ie, airway devices, code medications, umbilical line placement), the international health-care community is tasked to consider how to best implement these practices safely and effectively in lower-resourced settings. Current educational training programs do not provide specific instructions on how to scale these advanced neonatal resuscitation training components to match available materials, staff proficiency, and system infrastructure. Individual facilities are often faced with adapting content for their local context and capabilities. In this review, we discuss considerations surrounding curriculum adaptation to meet the needs of a rapidly changing landscape of resource availability in LMICs to ensure safety, equity, scalability, and sustainability.

Rectal and axillary admission temperature in preterm infants less than 32 weeks' gestation, a prospective study

Objectives

The purpose of this research was to evaluate the differences between rectal and axillary temperature measurements in preterm infants who were born less than 32 weeks' gestation using digital thermometers upon their admission to the Neonatal Intensive Care Unit (NICU).

Methods

Prospective, observational, single centre study. Rectal and axillary temperatures measurements were performed using a digital thermometer. The study examined various maternal and neonatal factors to describe the study group, including the use of prenatal corticosteroids, the occurrence of maternal diabetes and hypertension, a history of maternal prolonged rupture of membranes (PROM), maternal chorioamnionitis, the mode of delivery, along with the neonate's gender, birth weight, and gestational age. The Pearson correlation coefficient (R) was calculated to ascertain the linear relationship between the temperatures taken at the rectal and axillary sites. The concordance between the two sets of temperature data was analyzed using the Bland-Altman method.

Results

Eighty infants with a mean gestational age of 28.4 weeks (SD = 2.9) and a mean birth weight of 1,229 g (SD = 456) were included in the study. The mean axillary temperature was 36.4 °C (SD = 0.7), which was lower than the mean rectal temperature of 36.6 °C (SD = 0.6) (p = 0.012). Rectal temperatures surpassed axillary measurements in 59% of instances, while the reverse was observed in 21% of cases. Rectal and axillary temperatures had a strong correlation (Pearson correlation coefficient of 0.915, p < 0.001). Bland-Altman plot showed a small mean difference of 0.1C between the two temperatures measurements but the limits of agreement were wide (+0.7 to -0.6 °C). For hypothermic infants, the mean difference between rectal and axillary temperatures was 0.27 °C, with a wide limit of agreement ranging from -0.5 °C to +1 °C. Conversely, for normothermic infants, the mean difference was smaller at 0.1 °C, with a narrower limit of agreement from -0.4 °C to +0.6 °C.

Conclusions

While there is a good correlation between axillary and rectal temperatures, the wider limits of agreement indicate variability, particularly in hypothermic infants. For a more accurate assessment of core body temperature in hypothermic infants, clinicians should consider using rectal measurements to ensure effective thermal regulation and better clinical outcomes.

Gaps in pediatric emergency medicine education of emergency medicine residents: A needs assessment of recent graduates

Background

More than 90% of pediatric patients presenting to emergency departments (EDs) in the United States are evaluated and treated in community-based EDs. Recent evidence suggests that mortality outcomes may be worse for critically ill pediatric patients treated at community EDs. The disparate mortality outcomes may be due to inconsistency in pediatric-specific education provided to emergency medicine (EM) trainees during residency training. There are few studies surveying recently graduated EM physicians assessing perceived gaps in the pediatric emergency medicine (PEM) education they received during residency.

Methods

This was a prospective, survey-based, descriptive cohort study of EM residency graduates from 10 institutions across the United States who were <5 years out from residency training. Deidentified surveys were distributed via email.

Results

A total of 222 responses were obtained from 570 eligible participants (39.1%). Non-ED pediatric rotations during residency training included pediatric intensive care (60%), pediatric anesthesia (32.4%), neonatal intensive care unit (26.1%), and pediatric wards (17.1%). A large percentage (42.8%) of respondents felt uncomfortable managing neonates and performing tube thoracostomy on pediatric patients (56.3%). The EM graduate's satisfaction with pediatric simulation-based training during residency was positively associated with comfort caring for neonates and infants (p < 0.0070 and p < 0.0002) and performing endotracheal intubation (p < 0.0027), lumbar puncture (p < 0.0004), and Pediatric Advanced Life Support resuscitation (p < 0.0001).

Conclusions/discussion

This survey-based cohort study found considerable variation in pediatric-specific experiences during EM residency training and in perceived comfort managing pediatric patients. In general, participants were more comfortable managing older children. This study suggests that the greatest perceived knowledge gaps in PEM were neonatal medicine/resuscitation and pediatric cardiac arrest. Future research will continue to address larger cohorts, representative of the PEM education provided to EM physicians in the United States to promote future educational initiatives.

Neonatal resuscitation workshop for trainees in standardized medical residency training-a pilot practice in Shenzhen, China

Background

Neonatal resuscitation is an important skillset for clinicians attending deliveries. Accredited neonatal resuscitation training is not obligatory in most training centers of standardized medical residency programs before 2022 in China. We investigated the feasibility and effectiveness of neonatal resuscitation simulation training (neo-RST) in residents in Shenzhen, China.

Methods

Four two-day neo-RST workshops were conducted in the University of Hong Kong-Shenzhen Hospital and Shenzhen Health Capacity Building and Continuing Education Center in 2020-2021. The workshops had Neonatal Resuscitation Program (NRP)® update, skill stations and simulation practice with debriefing. Each participant had the integrated skill station assessment (ISSA) at the end of workshop. Participants of workshops included residents of different disciplines and health care providers (HCPs) of neonatal and obstetrical departments. We compared demographic characteristics, neonatal resuscitation knowledge before training, ISSA overall and categorical scores on skill sets between residents and HCPs.

Results

In 2020-2021, 4 neo-RST workshops were conducted with 48 residents and 48 HCPs. The residents group had less working experience, less prior experience in neo-RST and lower neonatal resuscitation knowledge scores than those of HCPs group. After the workshop, residents had higher overall ISSA score than that of HCPs group (90.2 ± 5.9 vs. 86.3 ± 6.6%, P = 0.003, respectively). There was no significant difference in the numbers of participants scored <80% in residents and HCPs group (3 [6.3%] vs. 7 [14.6%], respectively). Regarding the categorical scores, residents scored significantly higher in preparation, ventilation, crisis resource management and behavioral skills but lower in appropriate oxygen use, when compared with the HCPs.

Conclusion

Neo-RST for residents is feasible with promising short-term educational outcomes. Neo-RST could be implemented in standardized medical residency programs in China.

A Randomized Clinical Trial to Compare Three Different Methods for Estimating Orogastric Tube Insertion Length in Newborns: A Single-Center Experience in China

Background: Orogastric (OG) and nasogastric (NG) tubes are frequently used in the NICU. Obtaining a relatively accurate estimated length before insertion could significantly reduce complications. While previous studies have mainly focused on the NG tube, OG tubes are more commonly used in China. Purpose: The objective was to determine whether there were differences in the rate of accurate placement among the adapted nose-ear-xiphoid (NEX) method, nose-ear-midway to the umbilicus (NEMU) method, and weight-based (WB) equation in estimating the OG tube insertion distance. Methods: A randomized, controlled, open-label clinical trial to compare the three methods was conducted in a single center. After enrollment, newborns were randomly assigned into three groups. By radiological assessment, the anatomical region for OG tube placement was analyzed. The primary metric was the tip within the gastric body, and the second metric was strictly accurate placement defined as the tube was not looped back within the stomach and the end was located more than 2 cm but less than 5 cm into the stomach, referred to as T10. Results: This study recruited 156 newborns with the majority being preterm infants (n = 96; 61.5 percent), with an average birth weight of 2,200.8 ± 757.8 g. For the WB equation, 96.2 percent (50 cases) of the OG tubes were placed within the stomach, and the rates were 78.8 percent (41 cases) in the adapted NEX and NEMU methods. The strictly accurate placement rates were highest for the WB equation at 80.8 percent (42/52), followed by the adapted NEX method at 65.4 percent (34/52), and the NEMU method at 57.7 percent (30/52). Conclusion: The WB equation for estimating the insertion depth of the OG tube in newborn infants resulted in more precise placement compared to the adapted NEX and NEMU methods.

Perinatal risk factors associated with the need for resuscitation in newborns born through meconium-stained amniotic fluid

OBJECTIVE

The Neonatal Life Support 2020 guidelines emphasize that meconium-stained amniotic fluid (MSAF) remains a significant risk factor for a newborn to receive advanced resuscitation, especially if additional risk factors are present at the time of birth. However, these additional perinatal risk factors are not clearly identified. The purpose of this study was to evaluate the importance of additional independent ante- and intrapartum risk factors in the era of no routine endotracheal suctioning that determine the need for resuscitation in newborns born through MSAF.

METHODS

This retrospective cohort study included deliveries ≥ 35 weeks' gestation associated with MSAF that occurred between January 1, 2017 and December 31, 2019. The newborns needing resuscitation (any intervention beyond the initial steps) were compared to those not needing resuscitation. Among newborns needing resuscitation, those needing advanced resuscitation (continuous positive airway pressure/ positive pressure ventilation or beyond) were compared to those not needing advanced resuscitation.

RESULTS

Logistic regression analysis revealed that among various perinatal factors, primigravida, thick meconium, fetal distress, chorioamnionitis, rupture of membranes ≥ 18 hours, post-term (gestational age ≥ 42 weeks), cesarean section or shoulder dystocia independently significantly increased the odds of a meconium-stained newborn needing resuscitation. Among these factors, fetal distress, chorioamnionitis or cesarean section independently further increased the odds of needing advanced resuscitation.

CONCLUSION

Risk stratification of perinatal factors associated with the need for newborn resuscitation and advanced resuscitation in the deliveries associated with MSAF may help neonatal teams and resources to be appropriately prioritized and optimally utilized.

Oxygen saturation centiles in healthy preterm neonates in the first 10 min of life: a prospective observational study

Current oxygen saturation targets in delivery room given by Neonatal Resuscitation Program (NRP) are essentially derived from term neonates. This prospective observational study was conducted in a level-III neonatal unit in preterm neonates (< 37 weeks) who did not receive resuscitation or supplemental oxygen to create centile charts for pre-ductal oxygen saturations using robust statistical modelling methods. Pre-ductal oxygen saturations (SPO2) were recorded from birth till 10 min of age using current generation Masimo pulse oximeters. Centile charts were created by generalized additive models. The change in oxygen saturations over time across subjects was modelled as a Bayesian linear regression mixed-effects model after including 'a priori' covariates. Oxygen saturation data was analysed in 180 subjects with mean gestation of 34 ± 2 weeks. Mean (SD) time to first SPO2 was 167 ± 77 s. The median time to SPO2 of > 90% was 310 s (IQR: 235-400). Time to > 90% SPO2 was shorter in (a) 34-36 weeks compared to < 34 weeks (290 vs 340; p = 0.03) and (b) vaginally delivered compared to caesarean-section born neonates (300 vs 360; p = 0.2).    Conclusions: Oxygen saturations in first 10 min of age in healthy preterm neonates are significantly higher than the targets proposed by the NRP-2020. Larger preterm neonates and those born through vaginal route attained a preductal saturation of > 90% sooner. What is Known: • Pulse oximetry is the standard for oxygen saturation monitoring during immediate postnatal period. • Healthy term neonates take many minutes after birth to reach a pre-ductal saturation of >90%. But, postnatal oxygen saturation trend data in healthy preterm neonates are scarce. What is New: • Provides centile charts for oxygen saturations till 10 minutes of age using current generation Masimo pulse oximeters in a large cohort of healthy preterm neonates using robust statistical modelling methods. • Identifies covariates that significantly modifies the saturation trends using a Bayesian mixed models' regression.

Effects of simulation-based education for neonatal resuscitation on medical students' technical and non-technical skills

Simulation is a learner-centered practice that helps develop and maintain knowledge, skills, and competencies. This study evaluated the effect of neonatal resuscitation simulation-based education for medical students in the fifth year (part of the regular clinical clerkship program) on the perceived performance of their technical and non-technical skills. In addition, we analyzed the difference between instructor's and learners' evaluations of technical skills after the simulation. A one-group pretest-posttest design was adopted. The simulation-based education of the neonatal resuscitation program (NRP) was conducted for 40 medical students from July to November 2020 at a medical school in South Korea. The simulation-based education comprised 5 minutes of pre-briefing, 10 minutes of running the simulation, and 30 minutes of debriefing (using a recorded video). The perceived performance of students' technical and non-technical skills before and after the simulation was compared by collecting and analyzing the pre- and post-questionnaires. The perceived performance of technical (p = .001) and non-technical skills (p < .001) was found to have significantly increased after the simulation. Particularly, the performance of technical skills, such as diagnostic (p = .007) and therapeutic actions (p < .001) and non-technical skills, such as leadership (p < .001), teamwork (p = .001), and task management (p = .020) improved significantly. There was no significant difference in the evaluations of the technical performance of the instructor and learners after the simulation (p = .953). Simulation-based education can improve technical skills, such as diagnostic and therapeutic actions for neonatal resuscitation. It is also effective in enhancing non-technical skills, such as leadership, teamwork, and task management. Further, after the simulation-based education, students can fully self-evaluate through objective reflection and improve their clinical competency.

Appropriate Management of the Nonvigorous Meconium-Stained Newborn Meconium

Before 2015, major changes in Neonatal Resuscitation Program (NRP) recommendations not supporting previously endorsed antepartum, intrapartum and postpartum interventions to prevent meconium aspiration syndrome were based on adequately powered multicenter randomized controlled trials. The 2015 and 2020 American Heart Association guidelines and 7th and 8th edition of NRP suggest not performing routine intubation and tracheal suctioning of nonvigorous meconium-stained newborns. However, this was given as a weak recommendation with low-certainty evidence. The purpose of this review is to summarize the evidence and explore the question of appropriate delivery room management for nonvigorous meconium-stained newborns.