International Liaison Committee on Resuscitation. The International Liaison Committee on Resuscitation (ILCOR) consensus on science with treatment recommendations for pediatric and neonatal patients: neonatal resuscitation

Exhaled CO2 monitoring to guide non-invasive ventilation at birth: a systematic review

OBJECTIVE

Measuring exhaled carbon dioxide (ECO2) during non-invasive ventilation at birth may provide information about lung aeration. However, the International Liaison Committee on Resuscitation (ILCOR) only recommends ECO2 detection for confirming endotracheal tube placement. ILCOR has therefore prioritised a research question that needs to be urgently evaluated: 'In newborn infants receiving intermittent positive pressure ventilation by any non-invasive interface at birth, does the use of an ECO2 monitor in addition to clinical assessment, pulse oximetry and/or ECG, compared with clinical assessment, pulse oximetry and/or ECG only, decrease endotracheal intubation in the delivery room, improve response to resuscitation, improve survival or reduce morbidity?'.

DESIGN

Systematic review of randomised and non-randomised studies identified by Ovid MEDLINE, Embase and Cochrane CENTRAL search until 1 August 2022.

SETTING

Delivery room.

PATIENTS

Newborn infants receiving non-invasive ventilation at birth.

INTERVENTION

ECO2 measurement plus routine assessment compared with routine assessment alone.

MAIN OUTCOME MEASURES

Endotracheal intubation in the delivery room, response to resuscitation, survival and morbidity.

RESULTS

Among 2370 articles, 23 were included; however, none had a relevant control group. Although studies indicated that the absence of ECO2 may signify airway obstruction and ECO2 detection may precede a heart rate increase in adequately ventilated infants, they did not directly address the research question.

CONCLUSIONS

Evidence to support the use of an ECO2 monitor to guide non-invasive positive pressure ventilation at birth is lacking. More research on the effectiveness of ECO2 measurement in addition to routine assessment during non-invasive ventilation of newborn infants at birth is needed.

PROSPERO REGISTRATION NUMBER

CRD42022344849.

Hypothermia and adverse outcomes during the transfer of extremely low birth weight infants

AIM

We aimed to explore whether hypothermia during the transfer of extremely low birth weight (ELBW) infants was associated with increased morbidity and mortality.

METHODS

Retrospective cohort study of transfers of ELBW infants by the London Neonatal Transfer Service between April 2015 and January 2017. Hypothermia was defined as an axillary temperature below 36.5°C.

RESULTS

Hypothermia was recorded in 36-47% of the 146 transfers depending on the time point of measurement from admission at the referring unit to admission at the receiving unit. Infants with hypothermia had a lower gestational age [25.1 (24.1-26.6) versus 26.0 (25.3-27.0) weeks, p < 0.001], birth weight [750 (600-830) versus 800 (730-885) gr, p = 0.004) and age at referral [1 (0.8-3) versus 1.5 (1-4) hours, p = 0.049] compared to infants without hypothermia. Infants with hypothermia had a longer median (IQR) duration of invasive ventilation [22(6-44) days] compared to infants without hypothermia [10 (4-21) days, p = 0.002]. Infants with hypothermia had a higher incidence of a patent ductus arteriosus and mortality before discharge from neonatal care compared to infants without hypothermia (79% vs. 27%, p = 0.043 and 29% vs. 13%, p = 0.025, respectively).

CONCLUSION

Among ELBW infants, hypothermia during transfer was common, particularly in infants of lower gestational age. Hypothermia was associated with a longer duration of ventilation and increased mortality before discharge from neonatal care.

The history of neonatal intubation

Interest in 'resurrecting' the lifeless by supporting breathing has been described since ancient times. For centuries, methods of resuscitating animals, then humans and specifically the 'lifeless' neonate were debated and discussed. Over time, with experimentation and worldwide collaboration, endotracheal tubes and laryngoscopes specific to the newborn were created and their use refined. This historical work has meant that today, the neonatal community focuses on refining the science and the art of intubation for the benefit of the newborn; who, where, when and how to intubate, with what devices and medications, bringing about significant change in the area of neonatal intubation. Recent work has focused on alternatives to neonatal intubation as the risks of endotracheal intubation and mechanical ventilation have become clearer. Appreciating the history of neonatal intubation and its (somewhat cyclical) changes over time can show us how far we've come and how far we can still go in the resuscitation and respiratory support of newborns.

Outcomes of extracorporeal membrane oxygenation and cardiopulmonary bypass in children after drowning-related resuscitation

Drowning is one of the leading causes of accidental deaths in children worldwide. However, the use of long-term extracorporeal life support (ECLS) in this setting is not widely established, and rewarming is often achieved by short-term cardiopulmonary bypass (CPB) treatment. Thus, we sought to add our experience with this means of support as a bridge-to-recovery or to-decision. This retrospective single-center study analyzes the outcome of 11 children (median 23 months, minimum-maximum 3 months-6.5 years) who experienced drowning and subsequent cardiopulmonary resuscitation (CPR) between 2005 and 2016 and who were supported by veno-arterial extracorporeal membrane oxygenation (ECMO), CPB, or first CPB then ECMO. All but one incident took place in sweet water. Submersion time ranged between 10 and 50 minutes (median 23 minutes), water temperature between 2°C and 28°C (median 14°C), and body core temperature upon arrival in the emergency department between 20°C and 34°C (median 25°C). Nine patients underwent ongoing CPR from the scene until ECMO or CPB initiation in the operating room. The duration of ECMO or CPB before successful weaning/therapy withdrawal ranged between 2 and 322 hours (median 19 hours). A total of four patients (36%) survived neurologically mildly or not affected after 4 years of follow-up. The data indicate that survival is likely related to a shorter submersion time and lower water temperature. Resuscitation of pediatric patients after drowning has a poor outcome. However, ECMO or CPB might promote recovery in selected cases or serve as a bridge-to-decision tool.

Translating Neonatal Resuscitation Guidelines Into Practice in Brazil

BACKGROUND AND OBJECTIVES

The Brazilian Neonatal Resuscitation Program releases guidelines based on local interpretation of international consensus on science and treatment recommendations. We aimed to analyze whether guidelines for preterm newborns were applied to practice in the 20 Brazilian Network on Neonatal Research centers of this middle-income country.

METHODS

Prospectively collected data from 2014 to 2020 were analyzed for 8514 infants born at 230/7 to 316/7 weeks' gestation. The frequency of procedures was evaluated by gestational age (GA) category, including use of a thermal care bundle, positive pressure ventilation (PPV), PPV with a T-piece resuscitator, maximum fraction of inspired oxygen (Fio2) concentration during PPV, tracheal intubation, chest compressions and medications, and use of continuous positive airway pressure in the delivery room. Logistic regression, adjusted by center and year, was used to estimate the probability of receiving recommended treatment.

RESULTS

For 3644 infants 23 to 27 weeks' GA and 4870 infants 28 to 31 weeks' GA, respectively, the probability of receiving care consistent with guidelines per year increased, including thermal care (odds ratio [OR], 1.52 [95% confidence interval (CI) 1.44-1.61] and 1.45 [1.38-1.52]) and PPV with a T-piece (OR, 1.45 [95% CI 1.37-1.55] and 1.41 [1.32-1.51]). The probability of receiving PPV with Fio2 1.00 decreased equally in both GA groups (OR, 0.89; 95% CI, 0.86-0.93).

CONCLUSIONS

Between 2014 and 2020, the resuscitation guidelines for newborns <32 weeks' GA on thermal care, PPV with a T-piece resuscitator, and decreased use of Fio2 1.00 were translated into clinical practice.

Tactile Stimulation in Newborn Infants With Inadequate Respiration at Birth: A Systematic Review

CONTEXT

For many years the International Liaison Committee on Resuscitation has recommended the use of tactile stimulation for initial management of infants born with inadequate respiratory effort at birth without systematically examining its effectiveness.

OBJECTIVE

Systematic review to compare the effectiveness of tactile stimulation with routine handling in newly born term and preterm infants.

DATA SOURCES

Medline, Embase, Cochrane CENTRAL, along with clinical trial registries.

STUDY SELECTION

Randomized and non-randomized studies were included based on predetermined criteria.

DATA EXTRACTION

Data were extracted independently by authors. Risk of Bias in Nonrandomized Studies of Interventions (ROBINS-I) was used to assess risk of bias in non-randomized studies. Grading of Recommendations, Assessment, Development and Evaluations (GRADE) was used to assess the certainty of evidence.

RESULTS

Among 2455 unique articles identified, 2 observational studies were eligible and qualitatively summarized. Because one of the studies was at critical risk of bias, only the other study including 243 preterm infants on continuous positive airway pressure with clinical indications for tactile stimulation was analyzed. It showed a reduction in tracheal intubation in infants receiving tactile stimulation compared with no tactile stimulation (12 of 164 vs 14 of 79, risk ratio of 0.41 [95% confidence interval 0.20 to 0.85]); however, the certainty of evidence was very low.

LIMITATIONS

The available data were limited and only from observational studies.

CONCLUSIONS

A potential benefit of tactile stimulation was identified but was limited by the very low certainty of evidence. More research is suggested to evaluate the effectiveness as well as the optimal type and duration of tactile stimulation.

Placental Transfusion, Timing of Plastic Wrap or Bag Placement, and Preterm Neonates

OBJECTIVE

 Compare delivery room practices and outcomes of infants born at less than 32 weeks' gestation or less than 1,500 g who have plastic wrap/bag placement simultaneously during placental transfusion to those receiving plastic wrap/bag placement sequentially following placental transfusion.

STUDY DESIGN

 Retrospective analysis of data from a multisite quality improvement initiative to refine stabilization procedures pertaining to placental transfusion and thermoregulation using a plastic wrap/bag. Delivery room practices and outcome data in 590 total cases receiving placental transfusion were controlled for propensity score matching and hospital of birth.

RESULTS

 The simultaneous and sequential groups were similar in demographic and most outcome metrics. The simultaneous group had longer duration of delayed cord clamping compared with the sequential group (42.3 ± 14.8 vs. 34.1 ± 10.3 seconds, p < 0.001), and fewer number of times cord milking was performed (0.41 ± 1.26 vs. 0.86 ± 1.92 seconds, p < 0.001). The time to initiate respiratory support was also significantly shorter in the simultaneous group (97.2 ± 100.6 vs. 125.2 ± 177.6 seconds, p = 0.02). The combined outcome of death or necrotizing enterocolitis in the simultaneous group was more frequent than in the sequential group (15.3 vs. 9.3%, p = 0.038); all other outcomes measured were similar.

CONCLUSION

 Timing of plastic wrap/bag placement during placental transfusion did affect duration of delayed cord clamping, number of times cord milking was performed, and time to initiate respiratory support in the delivery room but did not alter birth hospital outcomes or respiratory care practices other than the combined outcome of death or necrotizing enterocolitis.

KEY POINTS

· Plastic bag placement during placental transfusion is effective in stabilization of preterms.. · Plastic bag placement after placental transfusion is effective in stabilization of preterms.. · Plastic bag placement during placental transfusion and risk of death or necrotizing enterocolitis needs additional study..

Neonatal Golden Hour: A survey of Australian and New Zealand Neonatal Network units' early stabilisation practices for very preterm infants

AIM

To identify current 'Golden Hour' practices for initial stabilisation of very preterm infants <32 weeks' gestational age (GA) within tertiary neonatal intensive care units (NICUs) in the Australian and New Zealand Neonatal Network (ANZNN).

METHODS

A 76-question survey regarding delivery room (DR) and NICU stabilisation practices was distributed electronically to directors of tertiary perinatal NICUs in the ANZNN in January 2019. Responses were categorised into GA subgroups: 23-24, 25-27 and 28-31 weeks' GA.

RESULTS

The response rate was 100% (24/24 units). Delayed cord clamping (DCC) was practised 'always' or 'often' by 21 units (88%). All units used oximetry to target oxygen saturations, and 23/24 (96%) commenced resuscitation in <40% oxygen. Ten units (42%) routinely used DR electrocardiography monitoring. CPAP was preferred as primary respiratory support in one-third of units for infants born 23-24 weeks' GA, compared with 19 units (79%) at 25-27 weeks' GA and 23 units (96%) at 28-31 weeks' GA. DR skin-to-skin care was uncommon, particularly at lower GAs. Five units (21%) used minimally invasive surfactant therapy for non-intubated infants at 23-24 weeks' GA, 13 units (54%) at 25-27 weeks' GA and 16 units (67%) at 28-31 weeks' GA.

CONCLUSIONS

Most Golden Hour stabilisation practices align with international guidelines. Consistency exists with respect to DCC, oxygen saturation targeting and primary CPAP use for infants 25 weeks' GA and above. Where evidence is less certain, practices vary across ANZNN NICUs. Time targets for stabilisation measures may help standardise practice for this population.

Differential Alveolar and Systemic Oxygenation during Preterm Resuscitation with 100% Oxygen during Delayed Cord Clamping

OBJECTIVE

 Delayed cord clamping (DCC) and 21 to 30% O₂ resuscitation is recommended for preterm infants but is commonly associated with low pulmonary blood flow (Qp) and hypoxia. 100% O₂ supplementation during DCC for 60 seconds followed by 30% O₂ may increase Qp and oxygen saturation (SpO₂).

STUDY DESIGN

 Preterm lambs (125-127 days of gestation) were resuscitated with 100% O₂ with immediate cord clamping (ICC, n = 7) or ICC + 30% O₂, and titrated to target SpO₂ (n = 7) or DCC + 100% O₂ for 60 seconds, which followed by cord clamping and 30% O₂ titration (n = 7). Seven preterm (23-27 weeks of gestation) human infants received continuous positive airway pressure (CPAP) + 100% O₂ for 60 seconds during DCC, cord clamping, and 30% O₂ supplementation after cord clamping.

RESULTS

 Preterm lambs in the ICC + 100% O₂ group resulted in PaO₂ (77 ± 25 mmHg), SpO₂ (77 ± 11%), and Qp (27 ± 9 mL/kg/min) at 60 seconds. ICC + 30% O₂ led to low Qp (14 ± 3 mL/kg/min), low SpO₂ (43 ± 26%), and PaO₂ (19 ± 7 mmHg). DCC + 100% O₂ led to similar Qp (28 ± 6 mL/kg/min) as ICC + 100% O₂ with lower PaO₂. In human infants, DCC + CPAP with 100% O₂ for 60 seconds, which followed by weaning to 30% resulted in SpO₂ of 92 ± 11% with all infants >80% at 5 minutes with 100% survival without severe intraventricular hemorrhage.

CONCLUSION

 DCC + 100% O₂ for 60 seconds increased Qp probably due to transient alveolar hyperoxia with systemic normoxia due to "dilution" by umbilical venous return. Larger translational and clinical studies are warranted to confirm these findings.

KEY POINTS

· Transient alveolar hyperoxia during delayed cord clamping can enhance pulmonary vasodilation.. · Placental transfusion buffers systemic oxygen tension and limits hyperoxia.. · Use of 100% oxygen for 60 seconds during DCC was associated with SpO2 ≥80% by 5 minutes..

Ergonomic Challenges Inherent in Neonatal Resuscitation

Neonatal resuscitation demands that healthcare professionals perform cognitive and technical tasks while working under time pressure as a team in order to provide efficient and effective care. Neonatal resuscitation teams simultaneously process and act upon multiple data streams, perform ergonomically challenging technical procedures, and coordinate their actions within a small physical space. An understanding and application of human factors and ergonomics science broadens the areas of need in resuscitation research, and will lead to enhanced technologies, systems, and work environments that support human limitations and maximize human performance during neonatal resuscitation.

Supporting breathing of preterm infants at birth: a narrative review

Most very preterm infants have difficulty aerating their lungs and require respiratory support at birth. Currently in clinical practice, non-invasive ventilation in the form of continuous positive airway pressure (CPAP) and positive pressure ventilation (PPV) is applied via facemask. As most very preterm infants breathe weakly and unnoticed at birth, PPV is often administered. PPV is, however, frequently ineffective due to pressure settings, mask leak and airway obstruction. Meanwhile, high positive inspiratory pressures and spontaneous breathing coinciding with inflations can generate high tidal volumes. Evidence from preclinical studies demonstrates that high tidal volumes can be injurious to the lungs and brains of premature newborns. To reduce the need for PPV in the delivery room, it should be considered to optimise spontaneous breathing with CPAP. CPAP is recommended in guidelines and commonly used in the delivery room after a period of PPV, but little data is available on the ideal CPAP strategy and CPAP delivering devices and interfaces used in the delivery room. This narrative review summarises the currently available evidence for why PPV can be inadequate at birth and what is known about different CPAP strategies, devices and interfaces used the delivery room.

Fetal Surgery and Delayed Cord Clamping: Neonatal Implications

Advances made in the last several decades in the care of the fetus and newborn have had a significant impact on morbidity and mortality. Delayed umbilical cord clamping in the preterm newborn results in fewer transfusions for anemia, decreased intraventricular hemorrhage, and decreased necrotizing enterocolitis. Because of advances made in fetal ultrasound diagnosis and technological advances, fetal surgeries to treat congenital diaphragmatic hernia, myelomeningocele, twin-to-twin transfusion syndrome, fetal lower urinary tract obstructions, amniotic band syndrome, and congenital cystic adenoid malformation or congenital pulmonary airway malformations have improved the quality of life and survival for these patients.

Optimal human and system performance during neonatal resuscitation

Performance in the delivery of care to sick neonates in need of resuscitation has long been defined primarily in terms of the extent of the knowledge possessed and hands-on skill demonstrated by physicians and other healthcare professionals. This definition of performance in neonatal resuscitation is limited by its focus solely on the human beings delivering care and a perceived set of the requisite skills to do so. This manuscript will expand the definition of performance to include all of the skill sets that humans must use to resuscitate newborns as well as the often complex systems in which those humans operate while delivering that care. It will also highlight how the principles of human factors and ergonomics can be used to enhance human and system performance during patient care. Finally, it will describe the role of simulation and debriefing in the assessment of human and system performance.

Evolution of Delivery Room Management for Meconium-Stained Infants: Recent Updates

BACKGROUND

The approach to intrapartum and postnatal management of an infant born through meconium-stained amniotic fluid (MSAF) in the delivery room (DR) has changed several times over the last few decades, leading to confusion and anxiety among health care providers (nurses, nurse practitioners, respiratory therapists, midwives, and physicians). This article provides state-of-the-art insight into the evidence or lack thereof for the changes in guidelines.

PURPOSE

To discuss the evidence for evolution of DR management of vigorous and nonvigorous infants born through any type of MSAF.

METHODS

Review of guidelines from the Neonatal Resuscitation Program of the American Academy of Pediatrics and the American College of Obstetricians and Gynecologists, the International Liaison Committee on Resuscitation, Consensus on Science and Treatment Recommendations, and textbooks of neonatal resuscitation and research using MEDLINE via PubMed.

FINDINGS

In pregnancies complicated by MSAF, intrapartum suctioning of the oro- and nasopharynx and postnatal intubation with tracheal suctioning of infants have been traditionally used to clear the airway and decrease meconium aspiration syndrome. The recommendations for these perinatal practices have changed several times due to some evidence that the procedures are not beneficial and may even be harmful.

IMPLICATIONS FOR PRACTICE

Intrapartum suctioning and postnatal tracheal suctioning of infants (vigorous or nonvigorous) born through MSAF are not recommended. This is a "high-risk" delivery requiring 2 team members to be present at birth-one with full resuscitation skills including tracheal intubation.

IMPLICATIONS FOR RESEARCH

Need to evaluate effects of discontinuing the practice of tracheal suctioning in nonvigorous infants on the incidence of meconium aspiration syndrome and neonatal mortality.

Interventions to prevent hypothermia at birth in preterm and/or low birth weight infants

BACKGROUND

Newborn admission temperature is a strong predictor of outcomes across all gestations. Hypothermia immediately after birth remains a worldwide issue and, if prolonged, is associated with harm. Keeping preterm infants warm is difficult even when recommended routine thermal care guidelines are followed in the delivery room.

OBJECTIVES

To assess the efficacy and safety of interventions designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room, compared with routine thermal care or any other single/combination of intervention(s) also designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room.

SEARCH METHODS

We used the standard search strategy of Cochrane Neonatal to search the Cochrane Central Register of Controlled Trials (CENTRAL; 2016, Issue 5), MEDLINE via PubMed (1966 to 30 June 2016), Embase (1980 to 30 June 2016), and CINAHL (1982 to 30 June 2016). We also searched clinical trials databases, conference proceedings, and reference lists of retrieved articles for randomised controlled trials and quasi-randomised trials.

SELECTION CRITERIA

Trials using randomised or quasi-randomised allocations to test interventions designed to prevent hypothermia (apart from 'routine' thermal care) applied within 10 minutes after birth in the delivery room for infants at < 37 weeks' gestation and/or birth weight ≤ 2500 grams.

DATA COLLECTION AND ANALYSIS

We used Cochrane Neonatal methods when performing data collection and analysis.

MAIN RESULTS

Twenty-five studies across 15 comparison groups met the inclusion criteria, categorised as: barriers to heat loss (18 studies); external heat sources (three studies); and combinations of interventions (four studies).Barriers to heat loss Plastic wrap or bag versus routine carePlastic wraps improved core body temperature on admission to the neonatal intensive care unit (NICU) or up to two hours after birth (mean difference (MD) 0.58°C, 95% confidence interval (CI) 0.50 to 0.66; 13 studies; 1633 infants), and fewer infants had hypothermia on admission to the NICU or up to two hours after birth (typical risk ratio (RR) 0.67, 95% CI 0.62 to 0.72; typical risk reduction (RD) -0.25, 95% CI -0.29 to -0.20; number needed to treat for an additional beneficial outcome (NNTB) 4, 95% CI 4 to 5; 10 studies; 1417 infants). Risk of hyperthermia on admission to the NICU or up to two hours after birth was increased in infants in the wrapped group (typical RR 3.91, 95% CI 2.05 to 7.44; typical RD 0.04, 95% CI 0.02 to 0.06; number needed to treat for an additional harmful outcome (NNTH) 25, 95% CI 17 to 50; 12 studies; 1523 infants), but overall, fewer infants receiving plastic wrap were outside the normothermic range (typical RR 0.75, 95% CI 0.69 to 0.81; typical RD -0.20, 95% CI -0.26 to -0.15; NNTH 5, 95% CI 4 to 7; five studies; 1048 infants).Evidence was insufficient to suggest that plastic wraps or bags significantly reduce risk of death during hospital stay or other major morbidities, with the exception of reducing risk of pulmonary haemorrhage.Evidence of practices regarding permutations on this general approach is still emerging and has been based on the findings of only one or two small studies.External heat sourcesEvidence is emerging on the efficacy of external heat sources, including skin-to-skin care (SSC) versus routine care (one study; 31 infants) and thermal mattress versus routine care (two studies; 126 infants).SSC was shown to be effective in reducing risk of hypothermia when compared with conventional incubator care for infants with birth weight ≥ 1200 and ≤ 2199 grams (RR 0.09, 95% CI 0.01 to 0.64; RD -0.56, 95% CI -0.84 to -0.27; NNTB 2, 95% CI 1 to 4). Thermal (transwarmer) mattress significantly kept infants ≤ 1500 grams warmer (MD 0.65°C, 95% CI 0.36 to 0.94) and reduced the incidence of hypothermia on admission to the NICU, with no significant difference in hyperthermia risk.Combinations of interventionsTwo studies (77 infants) compared thermal mattresses versus plastic wraps or bags for infants at ≤ 28 weeks' gestation. Investigators reported no significant differences in core body temperature nor in the incidence of hypothermia, hyperthermia, or core body temperature outside the normothermic range on admission to the NICU.Two additional studies (119 infants) compared plastic bags and thermal mattresses versus plastic bags alone for infants at < 31 weeks' gestation. Meta-analysis of these two studies showed improvement in core body temperature on admission to the NICU or up to two hours after birth, but an increase in hyperthermia. Data show no significant difference in the risk of having a core body temperature outside the normothermic range on admission to the NICU nor in the risk of other reported morbidities.

AUTHORS' CONCLUSIONS

Evidence of moderate quality shows that use of plastic wraps or bags compared with routine care led to higher temperatures on admission to NICUs with less hypothermia, particularly for extremely preterm infants. Thermal mattresses and SSC also reduced hypothermia risk when compared with routine care, but findings are based on two or fewer small studies. Caution must be taken to avoid iatrogenic hyperthermia, particularly when multiple interventions are used simultaneously. Limited evidence suggests benefit and no evidence of harm for most short-term morbidity outcomes known to be associated with hypothermia, including major brain injury, bronchopulmonary dysplasia, retinopathy of prematurity, necrotising enterocolitis, and nosocomial infection. Many observational studies have shown increased mortality among preterm hypothermic infants compared with those who maintain normothermia, yet evidence is insufficient to suggest that these interventions reduce risk of in-hospital mortality across all comparison groups. Hypothermia may be a marker for illness and poorer outcomes by association rather than by causality. Limitations of this review include small numbers of identified studies; small sample sizes; and variations in methods and definitions used for hypothermia, hyperthermia, normothermia, routine care, and morbidity, along with lack of power to detect effects on morbidity and mortality across most comparison groups. Future studies should: be adequately powered to detect rarer outcomes; apply standardised morbidity definitions; focus on longer-term outcomes, particularly neurodevelopmental outcomes.

Mind the gap: can videolaryngoscopy bridge the competency gap in neonatal endotracheal intubation among pediatric trainees? a randomized controlled study

BACKGROUND

To study the impact of videolaryngoscopy (VL) on intubation success among pediatric trainees compared with direct laryngoscopy (DL).

METHODS

One hundred pediatric residents were enrolled in a randomized, crossover, simulation study comparing VL to DL. Following a didactic session on neonatal intubation, residents intubated a standard neonatal mannequin. Three Neonatal Resuscitation Program (NRP) scenarios were then conducted, followed by a mannequin intubation with the alternate device. Number of attempts and time to intubation were recorded for all intubations.

RESULTS

Proportion of successful intubations on first attempt was greater with VL compared with DL (88% versus 63%; P=0.008). The DL group increased success after crossover with VL (63% versus 89%; P=0.008). Exposure to VL also reduced intubation time after device crossover (median intubation time: 31 versus 17 s; P=0.048).

CONCLUSIONS

VL increased the success of endotracheal intubation by pediatric residents in simulation, with skills transferrable to DL.

Meconium "aspiration" (or respiratory distress associated with meconium-stained amniotic fluid?)

The designation meconium aspiration syndrome (MAS) reflects a spectrum of disorders in infants born with meconium-stained amniotic fluid, ranging from mild tachypnea to severe respiratory distress and significant mortality. The frequency of MAS is highest among infants with post-term gestation, thick meconium, and birth asphyxia. Pulmonary hypertension is an important component in severe cases. Prenatal hypopharyngeal suctioning and postnatal endotracheal intubation and suctioning of vigorous infants are not effective. Intubation and suctioning of non-breathing infants is controversial and needs more investigation. Oxygen, mechanical ventilation, and inhaled nitric oxide are the mainstays of treatment. Surfactant is often used in infants with severe parenchymal involvement. High-frequency ventilation and extracorporeal membrane oxygenation are usually considered rescue therapies.

Factors Affecting the Target Oxygen Saturation in the First Minutes of Life in Preterm Infants

BACKGROUND

The aim of this study was to describe the effect of factors on time to reach a pulse oxygen saturation (SpO2) level of 90% in preterm infants in the delivery room.

METHODS

Preterm (<35 gestational age) infants who did not require supplemental oxygen were included in the study. Continuous recordings were taken by pulse oximetry during the first 15 min of life.

RESULTS

Of 151 preterm infants, 79 (52.3%) were female and 126 (83.5%) were delivered by cesarean section. Target saturation level (≥90%) was achieved faster in preductal measurements. Mean times taken to have a preductal and postductal SpO2 level of 90% were significantly lower in preterm babies born by vaginal delivery, with umbilical arterial pH ≥ 7.20 and whose mothers were non-smokers during pregnancy.

CONCLUSIONS

Differences in achievement of target saturation level were influenced by multiple factors (birth way, probe location, maternal smoking and umbilical blood gas pH) in the delivery room during resuscitation of preterm babies.

Surfactant reduced the mortality of neonates with birth weight ⩾1500 g and hypoxemic respiratory failure: a survey from an emerging NICU network

OBJECTIVE

We evaluated the efficacy of surfactant therapy and assisted ventilation on morbidity and mortality of neonates with birth weight (BW) ⩾1500 g and hypoxemic respiratory failure (HRF).

STUDY DESIGN

We retrospectively analyzed 5650 patients with BW ⩾1500 g for incidence, management and outcome of HRF, defined as acute hypoxemia requiring mechanical ventilation and/or nasal continuous positive airway pressure ⩾24 h. The patients were allocated into groups of moderate preterm (1735, 30.7%), late preterm (1431, 25.4%), early term (ETM, 986, 17.5%), full term (1390, 24.6%) and post term (79, 1.4%), with gestational age ⩽33, 34 to 36, 37 to 38, 39 to 41 and ⩾42 weeks, respectively.

RESULTS

In the five groups, 66.9, 42, 21.6, 12.8 and 5.1% had respiratory distress syndrome (RDS). For pneumonia/sepsis and meconium aspiration syndrome (MAS), the proportion was 13.8%, 25.4%, 38.0%, 52.5% and 76.0%, respectively. Surfactant was given to 21.9% (n=1238) of HRF and 51.2% (n=1108) of RDS. Survival rates of RDS were 82.2%, 87.8%, 84.5%, 77.1% and 75.0%, respectively (numbers needed to treat was 8 to 11 for surfactant benefit). Overall mortality rate of HRF was 21%, or 17.9%, 14.7%, 25.6%, 28.9% and 39.2%, respectively. Mortalities of MAS and pneumonia/sepsis were 29.4 and 27.6%. Relative risk of death was associated with initial disease severity, female gender, mechanical ventilation and congenital anomalies by multivariate logistic regression analysis.

CONCLUSION

Surfactant was effective for infants with RDS and BW ⩾1500 g, and different incidences and outcome of HRF among GA groups reflected standard of perinatal and respiratory care in emerging neonatal intensive care unit network.

Human amnion epithelial cells modulate the inflammatory response to ventilation in preterm lambs

Ventilation of preterm neonates causes pulmonary inflammation that can contribute to lung injury, propagate systemically and result in long-term disease. Modulation of this initial response may reduce lung injury and its sequelae. We aimed to determine the effect of human amnion epithelial cells (hAECs) on immune activation and lung injury in preterm neonatal lambs. Preterm lambs received intratracheal hAECs (90x106) or vehicle, prior to 2 h of mechanical ventilation. Within 5 min of ventilation onset, lambs also received intravenous hAECs (90x106) or vehicle. Lung histology, bronchoalveolar lavage (BAL) cell phenotypes, and cytokine profiles were examined after 2 h of ventilation, and in unventilated controls. Histological indices of lung injury were higher than control, in vehicle-treated ventilated lambs but not in hAEC-treated ventilated lambs. Ventilation-induced pulmonary leukocyte recruitment was greater in hAEC-treated lambs than in vehicle-treated lambs. Lung IL-1β and IL-6 mRNA expression was higher in vehicle- and hAEC-treated ventilated lambs than in controls but IL-8 mRNA levels were greater than control only in vehicle-treated ventilated lambs. Numbers of CD44+ and CD21+ lymphocytes and macrophages from the lungs were altered in vehicle- and hAEC-treated ventilated lambs. Numbers of CD8+ macrophages were lower in hAEC-treated ventilated lambs than in vehicle-treated ventilated lambs. Indices of systemic inflammation were not different between vehicle- and hAEC-treated lambs. Human amnion epithelial cells modulate the pulmonary inflammatory response to ventilation in preterm lambs, and reduce acute lung injury. Immunomodulatory effects of hAECs reduce lung injury in preterm neonates and may protect against longer-term respiratory disease.

Higher or lower oxygen for delivery room resuscitation of preterm infants below 28 completed weeks gestation: a meta-analysis

OBJECTIVE

To systematically review outcomes of infants ≤28+6 weeks gestation randomised to resuscitation with low (≤0.3) vs high (≥0.6) fraction of inspired oxygen (FiO₂) at delivery.

DESIGN

Systematic review of randomised controlled trials of low (≤0.3) vs high (≥0.6) FiO₂ resuscitation. Information was obtained from databases (Medline/Pub Med, EMBASE, ClinicalTrials.gov, Cochrane) and meeting abstracts between 1990 to 2015. Search index terms: preterm/ resuscitation/oxygen. Data for infants ≤28+6 weeks gestation were independently extracted and pooled using a random effects model. Analyses were performed with Revman V.5.

MAIN OUTCOME MEASURES

Death in hospital, bronchopulmonary dysplasia (BPD), retinopathy of prematurity >grade 2 (ROP), intraventricular haemorrhage >grade 2 (IVH), patent ductus arteriosus (PDA) and necrotising enterocolitis (NEC).

RESULTS

A total of 251 and 253 infants were enrolled in 8 studies (6 masked, 2 unmasked) in the lower and higher oxygen groups, respectively, (mean gestation 26 weeks) between 2005 and 2014. There were no differences in BPD (relative risk, 95% CIs 0.88 (0.68 to 1.14)), IVH (0.81 (0.52 to 1.27)), ROP (0.82 (0.46 to 1.46)), PDA (0.95 (0.80 to 1.14)) and NEC (1.61 (0.67 to 3.36)) and overall mortality (0.99 (0.52 to 1.91)). Mortality was lower in low oxygen arms of masked studies (0.46 (0.23 to 0.92), p=0.03) and higher in low oxygen arms of unmasked studies (1.94 (1.02 to 3.68), p=0.04).

CONCLUSIONS

There is no difference in the overall risk of death or other common preterm morbidities after resuscitation is initiated at delivery with lower (≤0.30) or higher (≥0.6) FiO₂ in infants ≤28+6 weeks gestation. The opposing results for masked and unmasked trials may represent a Type I error, emphasising the need for larger, well designed studies.

Impact of neonatal resuscitation trainings on neonatal and perinatal mortality: a systematic review and meta-analysis

BACKGROUND

Training of birth attendants in neonatal resuscitation is likely to reduce birth asphyxia and neonatal mortality. We performed a systematic review and meta-analysis to assess the impact of neonatal resuscitation training (NRT) programme in reducing stillbirths, neonatal mortality, and perinatal mortality.

METHODS

We considered studies where any NRT was provided to healthcare personnel involved in delivery process and handling of newborns. We searched MEDLINE, CENTRAL, ERIC and other electronic databases. We also searched ongoing trials and bibliographies of the retrieved articles, and contacted experts for unpublished work. We undertook screening of studies and assessment of risk of bias in duplicates. We performed review according to Cochrane Handbook. We assessed the quality of evidence using the GRADE approach.

RESULTS

We included 20 trials with 1 653 805 births in this meta-analysis. The meta-analysis of NRT versus control shows that NRT decreases the risk of all stillbirths by 21% (RR 0.79, 95% CI 0.44 to 1.41), 7-day neonatal mortality by 47% (RR 0.53, 95% CI 0.38 to 0.73), 28-day neonatal mortality by 50% (RR 0.50, 95% CI 0.37 to 0.68) and perinatal mortality by 37% (RR 0.63, 95% CI 0.42 to 0.94). The meta-analysis of pre-NRT versus post-NRT showed that post-NRT decreased the risk of all stillbirths by 12% (RR 0.88, 95% CI 0.83 to 0.94), fresh stillbirths by 26% (RR 0.74, 95% CI 0.61 to 0.90), 1-day neonatal mortality by 42% (RR 0.58, 95% CI 0.42 to 0.82), 7-day neonatal mortality by 18% (RR 0.82, 95% CI 0.73 to 0.93), 28-day neonatal mortality by 14% (RR 0.86, 95% CI 0.65 to 1.13) and perinatal mortality by 18% (RR 0.82, 95% CI 0.74 to 0.91).

CONCLUSIONS

Findings of this review show that implementation of NRT improves neonatal and perinatal mortality. Further good quality randomised controlled trials addressing the role of NRT for improving neonatal and perinatal outcomes may be warranted.

TRIAL REGISTRATION NUMBER

PROSPERO 2016:CRD42016043668.

Hypothermia in Preterm Infants in the First Hours after Birth: Occurrence, Course and Risk Factors

BACKGROUND

Hypothermia is associated with increased morbidity and mortality rates. Preterm infants frequently have hypothermia when they are admitted to the NICU, but there is no data on the occurrence of hypothermia during the first hours after admission.

OBJECTIVE

To investigate the occurrence of hypothermia in preterm infants in the first three hours of admission and to identify risk factors.

METHODS

Infants < 32 weeks of gestation included in a randomized trial with admission temperature as primary outcome were retrospectively analyzed for the occurrence of hypothermia (< 36.5°C) in the first three hours after admission. Risk factors were identified using linear regression analysis and logistic regression.

RESULTS

In total 80 infants were included with a median (IQR) gestational age at birth of 29 (27-30) weeks. In 93% of the infants hypothermia occurred in the first three hours after admission. The median (IQR) duration of hypothermia was 101 (34-162) minutes, of which 24 (7-52) minutes the hypothermia was mild, 45 (4-111) minutes moderate, severe hypothermia hardly occurred. Gestational age and the occurrence of hypothermia at birth were independent risk factors for the occurrence of moderate and severe hypothermia and significantly correlated with duration of hypothermia.

CONCLUSIONS

Hypothermia occurred often and for a long period in preterm infants in the first three hours of life, low gestational age and admission temperature were independent risk factors.

Clinicians in 25 countries prefer to use lower levels of oxygen to resuscitate preterm infants at birth

AIM

This study determined current international clinical practice and opinions regarding initial fractional inspired oxygen (FiO2 ) and pulse oximetry (SpO2 ) targets for delivery room resuscitation of preterm infants of less than 29 weeks of gestation.

METHODS

An online survey was disseminated to neonatal clinicians via established professional clinical networks using a web-based survey programme between March 9 and June 30, 2015.

RESULTS

Of the 630 responses from 25 countries, 60% were from neonatologists. The majority (77%) would target SpO2 between the 10th to 50th percentiles values for full-term infants. The median starting FiO2 was 0.3, with Japan using the highest (0.4) and the UK using the lowest (0.21). New Zealand targeted the highest SpO2 percentiles (median 50%). Most respondents agreed or did not disagree that a trial was required that compared the higher FiO2 of 0.6 (83%), targeting the 50th SpO2 percentile (60%), and the lower FiO2 of 0.21 (80%), targeting the 10th SpO2 percentile (78%). Most (65%) would join this trial. Many considered that evidence was lacking and further research was needed.

CONCLUSION

Clinicians currently favour lower SpO2 targets for preterm resuscitation, despite acknowledging the lack of evidence for benefit or harm, and 65% would join a clinical trial.

Infants with Trisomy 18 and Complex Congenital Heart Defects Should Not Undergo Open Heart Surgery

Aggressive medical and surgical interventions have not been clearly demonstrated to improve survival in neonates with trisomy 18; there are no data that demonstrates improved quality of life for these children after these interventions; and these interventions are clearly associated with significant morbidity, resource allocation, and cost.

Newborn Resuscitation Training Programmes Reduce Early Neonatal Mortality

BACKGROUND

Substantial health care resources are expended on standardised formal neonatal resuscitation training (SFNRT) programmes, but their effectiveness has not been proven.

OBJECTIVES

To determine whether SFNRT programmes reduce neonatal mortality and morbidity, improve acquisition and retention of knowledge and skills, or change teamwork and resuscitation behaviour.

METHODS

We searched CENTRAL, MEDLINE, PREMEDLINE, EMBASE, CINAHL, Web of Science and the Oxford Database of Perinatal Trials, ongoing trials and conference proceedings in April 2015, and included randomised or quasi-randomised trials that reported at least one of our specified outcomes.

RESULTS

SFNRT in low- and middle-income countries decreased early neonatal mortality [risk ratio (RR) 0.85 (95% CI 0.75-0.96)]; the number needed to treat for benefit [227 (95% CI 122-1,667; 3 studies, 66,162 participants, moderate-quality evidence)], and 28-day mortality [RR 0.55 (95% CI 0.33-0.91); 1 study, 3,355 participants, low-quality evidence]. Decreasing trends were noted for late neonatal mortality [RR 0.47 (95% CI 0.20-1.11)] and perinatal mortality [RR 0.94 (95% CI 0.87-1.00)], but there were no differences in fresh stillbirths [RR 1.05 (95% CI 0.93-1.20)]. Teamwork training with simulation increased the frequency of teamwork behaviour [mean difference (MD) 2.41 (95% CI 1.72-3.11)] and decreased resuscitation duration [MD -149.54 (95% CI -214.73 to -84.34); low-quality evidence, 2 studies, 130 participants].

CONCLUSIONS

SFNRT in low- and middle-income countries reduces early neonatal mortality, but its effects on birth asphyxia and neurodevelopmental outcomes remain uncertain. Follow-up studies suggest normal neurodevelopment in resuscitation survivors.

Cardiorespiratory Monitoring during Neonatal Resuscitation for Direct Feedback and Audit

Neonatal resuscitation is one of the most frequently performed procedures, and it is often successful if the ventilation applied is adequate. Over the last decade, interest in seeking objectivity in evaluating the infant's condition at birth or the adequacy and effect of the interventions applied has markedly increased. Clinical parameters such as heart rate, color, and chest excursions are difficult to interpret and can be very subjective and subtle. The use of ECG, pulse oximetry, capnography, and respiratory function monitoring can add objectivity to the clinical assessment. These physiological parameters, with or without the combination of video recordings, can not only be used directly to guide care but also be used later for audit and teaching purposes. Further studies are needed to investigate whether this will improve the quality of delivery room management. In this narrative review, we will give an update of the current developments in monitoring neonatal resuscitation.

The ethics of neonatal research: A trialists' perspective

We are neonatal physicians who strive to practice evidence-based medicine. We conduct and promote randomized trials in preterm and critically ill infants to improve their care and outcomes. Controlled clinical trials are ethical and essential because randomization is the best strategy to minimize bias when evaluating therapies of uncertain benefit. Perinatal and neonatal randomized trials have identified better care practices, uncovered useless or harmful therapies, and revealed new knowledge gaps. We are convinced that neonatal randomized trials can be done safely and in partnership with the infants' families.

Count every newborn; a measurement improvement roadmap for coverage data

Background

The Every Newborn Action Plan (ENAP), launched in 2014, aims to end preventable newborn deaths and stillbirths, with national targets of ≤12 neonatal deaths per 1000 live births and ≤12 stillbirths per 1000 total births by 2030. This requires ambitious improvement of the data on care at birth and of small and sick newborns, particularly to track coverage, quality and equity.

Methods

In a multistage process, a matrix of 70 indicators were assessed by the Every Newborn steering group. Indicators were graded based on their availability and importance to ENAP, resulting in 10 core and 10 additional indicators. A consultation process was undertaken to assess the status of each ENAP core indicator definition, data availability and measurement feasibility. Coverage indicators for the specific ENAP treatment interventions were assigned task teams and given priority as they were identified as requiring the most technical work. Consultations were held throughout.

Results

ENAP published 10 core indicators plus 10 additional indicators. Three core impact indicators (neonatal mortality rate, maternal mortality ratio, stillbirth rate) are well defined, with future efforts needed to focus on improving data quantity and quality. Three core indicators on coverage of care for all mothers and newborns (intrapartum/skilled birth attendance, early postnatal care, essential newborn care) have defined contact points, but gaps exist in measuring content and quality of the interventions. Four core (antenatal corticosteroids, neonatal resuscitation, treatment of serious neonatal infections, kangaroo mother care) and one additional coverage indicator for newborns at risk or with complications (chlorhexidine cord cleansing) lack indicator definitions or data, especially for denominators (population in need). To address these gaps, feasible coverage indicator definitions are presented for validity testing. Measurable process indicators to help monitor health service readiness are also presented. A major measurement gap exists to monitor care of small and sick babies, yet signal functions could be tracked similarly to emergency obstetric care.

Conclusions

The ENAP Measurement Improvement Roadmap (2015-2020) outlines tools to be developed (e.g., improved birth and death registration, audit, and minimum perinatal dataset) and actions to test, validate and institutionalise proposed coverage indicators. The roadmap presents a unique opportunity to strengthen routine health information systems, crosslinking these data with civil registration and vital statistics and population-based surveys. Real measurement change requires intentional transfer of leadership to countries with the greatest disease burden and will be achieved by working with centres of excellence and existing networks.

Standardised formal resuscitation training programmes for reducing mortality and morbidity in newborn infants

BACKGROUND

Approximately 10% of all newborns require resuscitation at birth. Training healthcare providers in standardised formal neonatal resuscitation training (SFNRT) programmes may improve neonatal outcomes. Substantial healthcare resources are expended on SFNRT.

OBJECTIVES

To determine whether SFNRT programmes reduce neonatal mortality and morbidity, improve acquisition and retention of knowledge and skills, or change teamwork and resuscitation behaviour.

SEARCH METHODS

We searched the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, PREMEDLINE, EMBASE, CINAHL, Web of Science and the Oxford Database of Perinatal Trials, ongoing trials and conference proceedings in April 2014 and updated in March 2015.

SELECTION CRITERIA

Randomised or quasi-randomised trials including cluster-randomised trials, comparing a SFNRT with no SFNRT, additions to SFNRT or types of SFNRT, and reporting at least one of our specified outcomes.

DATA COLLECTION AND ANALYSIS

Two authors extracted data independently and performed statistical analyses including typical risk ratio (RR), risk difference (RD), mean difference (MD), and number needed to treat for an additional beneficial outcome (NNTB) or an additional harmful outcome (NNTH) (all with 95% confidence intervals (CI)). We analysed cluster-randomised trials using the generic inverse variance and the approximate analysis methods.

MAIN RESULTS

We identified two community-based and three manikin-based trials that assessed the effect of SFNRT compared with no SFNRT. Very low quality evidence from one study suggested improvement in acquisition of knowledge (RR 5.96, 95% CI 3.60 to 9.87) and skills (RR 170, 95% CI 10.8 to 2711) and retention of knowledge (RR 3.60, 95% CI 2.43 to 5.35) and the other study suggested improvement in resuscitation and behavioural scores.We identified three community-based cluster-randomised trials in developing countries comparing SFNRT with basic resuscitation training (Early Newborn Care). In this setting, there was moderate quality evidence that SFNRT decreased early neonatal mortality (typical RR 0.88, 95% CI 0.78 to 1.00; 3 studies, 66,162 neonates) and when analysed by the approximate analysis method (typical RR 0.85, 95% CI 0.75 to 0.96; RD -0.0044, 95% CI -0.0082 to -0.0006; NNTB 227, 95% CI 122 to 1667). Low quality evidence from one trial showed that SFNRT may decrease 28-day mortality (typical RR 0.55, 95% CI 0.33 to 0.91) but the effect on late neonatal mortality was more uncertain (typical RR 0.47, 95% CI 0.20 to 1.11). None of our a priori defined neonatal morbidities were reported. We did not identify any randomised studies in the developed world.We identified two trials that compared SFNRT with team training to SFNRT. Teamwork training of physician trainees with simulation may increase any teamwork behaviour (assessed by frequency) (MD 2.41, 95% CI 1.72 to 3.11) and decrease resuscitation duration (MD -149.54, 95% CI -214.73 to -84.34) but may lead to little or no difference in Neonatal Resuscitation Program (NRP) scores (MD 1.40, 95% CI -2.02 to 4.82; 98 participants, low quality evidence).We identified two trials that compared SFNRT with booster courses to SFNRT. It is uncertain whether booster courses improve retention of resuscitation knowledge (84 participants, very low quality evidence) but may improve procedural and behavioural skills (40 participants, very low quality evidence).We identified two trials on decision support tools, one on a cognitive aid that did not change resuscitation scores and the other on an electronic decision support tool that improved the frequency of correct decision making on positive pressure ventilation, cardiac compressions and frequency of fraction of inspired oxygen (FiO2) adjustments (97 participants, very low quality evidence).

AUTHORS' CONCLUSIONS

SFNRT compared to basic newborn care or basic newborn resuscitation, in developing countries, results in a reduction of early neonatal and 28-day mortality. Randomised trials of SFNRT should report on neonatal morbidity including hypoxic ischaemic encephalopathy and neurodevelopmental outcomes. Innovative educational methods that enhance knowledge and skills and teamwork behaviour should be evaluated.

Borderline viability: controversies in caring for the extremely premature infant

Controversy surrounding the decision to resuscitate at the limits or borderline of viability has been at the center of neonatal ethical debate for decades. This debate has led to numerous reports from individual institutions, councils, and advisory committees that all have remarkable consistency in the development of gestational age-based guidelines. This article reviews legal or regulatory concerns that may contradict ethical discussion and guidelines, discriminatory and scientific basis concerns with consensus guidelines, and personal controversy about how to determine best interest. Guidelines are a reasonable place to start in helping determine parental authority and autonomy. The article also addresses controversies raised in counseling and costs.

Comparison of devices for newborn ventilation in the delivery room

OBJECTIVE

To evaluate the effectiveness and safety of a T-piece resuscitator compared with a self-inflating bag for providing mask ventilation to newborns at birth.

STUDY DESIGN

Newborns at ≥26 weeks gestational age receiving positive-pressure ventilation at birth were included in this multicenter cluster-randomized 2-period crossover trial. Positive-pressure ventilation was provided with either a self-inflating bag (self-inflating bag group) with or without a positive end-expiratory pressure valve or a T-piece with a positive end-expiratory pressure valve (T-piece group). Delivery room management followed American Academy of Pediatrics and International Liaison Committee on Resuscitation guidelines. The primary outcome was the proportion of newborns with heart rate (HR)≥100 bpm at 2 minutes after birth.

RESULTS

A total of 1027 newborns were included. There was no statistically significant difference in the incidence of HR≥100 bpm at 2 minutes after birth between the T-piece and self-inflating bag groups: 94% (479 of 511) and 90% (466 of 516), respectively (OR, 0.65; 95% CI, 0.41-1.05; P=.08). A total of 86 newborns (17%) in the T-piece group and 134 newborns (26%) in the self-inflating bag group were intubated in the delivery room (OR, 0.58; 95% CI, 0.4-0.8; P=.002). The mean±SD maximum positive inspiratory pressure was 26±2 cm H2O in the T-piece group vs 28±5 cm H2O in the self-inflating bag group (P<.001). Air leaks, use of drugs/chest compressions, mortality, and days on mechanical ventilation did not differ significantly between groups.

CONCLUSION

There was no difference between the T-piece resuscitator and a self-inflating bag in achieving an HR of ≥100 bpm at 2 minutes in newborns≥26 weeks gestational age resuscitated at birth. However, use of the T-piece decreased the intubation rate and the maximum pressures applied.

Controversies in neonatal resuscitation

Despite recent advances in perinatal medicine and in the art of neonatal resuscitation, resuscitation strategy and treatment methods in the delivery room should be individualized depending on the unique characteristics of the neonate. The constantly increasing evidence has resulted in significant treatment controversies, which need to be resolved with further clinical and experimental research.

Analyzing support of postnatal transition in term infants after c-section

Background

Whereas good data are available on the resuscitation of infants, little is known regarding support of postnatal transition in low-risk term infants after c-section. The present study was performed to describe current delivery room (DR) management of term infants born by c-section in our institution by analyzing videos that were recorded within a quality assurance program.

Methods

DR- management is routinely recorded within a quality assurance program. Cross-sectional study of videos of term infants born by c-section. Videos were analyzed with respect to time point, duration and number of all medical interventions. Study period was between January and December 2012.

Results

186 videos were analyzed. The majority of infants (73%) were without support of postnatal transition. In infants with support of transition, majority of infants received respiratory support, starting in median after 3.4 minutes (range 0.4-14.2) and lasting for 8.8 (1.5-28.5) minutes. Only 33% of infants with support had to be admitted to the NICU, the remaining infants were returned to the mother after a median of 13.5 (8-42) minutes. A great inter- and intra-individual variation with respect to the sequence of interventions was found.

Conclusions

The study provides data for an internal quality improvement program and supports the benefit of using routine video recording of DR-management. Furthermore, data can be used for benchmarking with current practice in other centers.

Developmental trajectories of children with birth asphyxia through 36 months of age in low/low-middle income countries

BACKGROUND

Resuscitation following birth asphyxia reduces mortality, but may be argued to increase risk for neurodevelopmental disability in survivors.

AIMS

To test the hypothesis that development of infants who received resuscitation following birth asphyxia is not significantly different through 36months of age from infants who had healthy births.

STUDY DESIGN

Prospective observational cohort design comparing infants exposed to birth asphyxia with resuscitation or healthy birth.

SUBJECTS

A random sample of infants with birth asphyxia who received bag-and-mask resuscitation was selected from birth records in selected communities in 3 countries.

EXCLUSION CRITERIA

birth weight<1500g, severely abnormal neurological examination at 7days, mother<15years, unable to participate, or not expected to remain in the target area. A random sample of healthy-birth infants (no resuscitation, normal neurological exam) was also selected. Eligible=438, consented=407, and ≥1 valid developmental assessment during the first 36months=376.

OUTCOME MEASURE(S)

Bayley Scales of Infant Development-II Mental (MDI) and Psychomotor (PDI) Development Index.

RESULTS

Trajectories of MDI (p=.069) and PDI (p=.143) over 3 yearly assessments did not differ between children with birth asphyxia and healthy-birth children. Rather there was a trend for birth asphyxia children to improve more than healthy-birth children.

CONCLUSIONS

The large majority of infants who are treated with resuscitation and survived birth asphyxia can be expected to evidence normal development at least until age 3. The risk for neurodevelopmental disability should not justify the restriction of effective therapies for birth asphyxia.

Hypothermia and early neonatal mortality in preterm infants

OBJECTIVE

To evaluate intervention practices associated with hypothermia at both 5 minutes after birth and at neonatal intensive care unit (NICU) admission and to determine whether hypothermia at NICU admission is associated with early neonatal death in preterm infants.

STUDY DESIGN

This prospective cohort included 1764 inborn neonates of 22-33 weeks without malformations admitted to 9 university NICUs from August 2010 through April 2012. All centers followed neonatal International Liaison Committee on Resuscitation recommendations for the stabilization and resuscitation in the delivery room (DR). Variables associated with hypothermia (axillary temperature <36.0 °C) 5 minutes after birth and at NICU admission, as well as those associated with early death, were analyzed by logistic regression.

RESULTS

Hypothermia 5 minutes after birth and at NICU admission was noted in 44% and 51%, respectively, with 6% of early neonatal deaths. Adjusted for confounding variables, practices associated with hypothermia at 5 minutes after birth were DR temperature <25 °C (OR 2.13, 95% CI 1.67-2.28), maternal temperature at delivery <36.0 °C (OR 1.93, 95% CI 1.49-2.51), and use of plastic bag/wrap (OR 0.53, 95% CI 0.40-0.70). The variables associated with hypothermia at NICU admission were DR temperature <25 °C (OR 1.44, 95% CI 1.10-1.88), respiratory support with cold air in the DR (OR 1.40, 95% CI 1.03-1.88) and during transport to NICU (OR 1.51, 95% CI 1.08-2.13), and cap use (OR 0.55, 95% CI 0.39-0.78). Hypothermia at NICU admission increased the chance of early neonatal death by 1.64-fold (95% CI 1.03-2.61).

CONCLUSION

Simple interventions, such as maintaining DR temperature >25 °C, reducing maternal hypothermia prior to delivery, providing plastic bags/wraps and caps for the newly born infants, and using warm resuscitation gases, may decrease hypothermia at NICU admission and improve early neonatal survival.

Measuring physiological changes during the transition to life after birth

The transition to life after birth is characterized by major physiological changes in respiratory and hemodynamic function, which are predominantly initiated by breathing at birth and clamping of the umbilical cord. Lung aeration leads to the establishment of functional residual capacity, allowing pulmonary gas exchange to commence. This triggers a significant decrease in pulmonary vascular resistance, consequently increasing pulmonary blood flow and cardiac venous return. Clamping the umbilical cord also contributes to these hemodynamic changes by altering the cardiac preload and increasing peripheral systemic vascular resistance. The resulting changes in systemic and pulmonary circulation influence blood flow through both the oval foramen and ductus arteriosus. This eventually leads to closure of these structures and the separation of the pulmonary and systemic circulations. Most of our knowledge on human neonatal transition is based on human (fetal) data from the 1970s and extrapolation from animal studies. However, there is renewed interest in performing measurements directly at birth. By using less cumbersome techniques (and probably more accurate), our previous understanding of the physiological transition at birth is challenged, as well as the causes and consequences for when this transition fails to progress. This review will provide an overview of physiological measurements of the respiratory and hemodynamic transition at birth. Also, it will give a perspective on some of the upcoming technological advances in physiological measurements of neonatal transition in infants who are unable to make the transition without support.

Pushing harder, pushing faster, minimizing interruptions… but falling short of 2010 cardiopulmonary resuscitation targets during in-hospital pediatric and adolescent resuscitation

AIM

The objective of this study was to evaluate the effect of instituting the 2010 Basic Life Support Guidelines on in-hospital pediatric and adolescent cardiopulmonary resuscitation (CPR) quality. We hypothesized that quality would improve, but that targets for chest compression (CC) depth would be difficult to achieve.

METHODS

Prospective in-hospital observational study comparing CPR quality 24 months before and after release of the 2010 Guidelines. CPR recording/feedback-enabled defibrillators collected CPR data (rate (CC/min), depth (mm), CC fraction (CCF, %), leaning (%>2.5kg)). Audiovisual feedback for depth was: 2005, ≥38mm; 2010, ≥50mm; for rate: 2005, ≥90 and ≤120CC/min; 2010, ≥100 and ≤120CC/min. The primary outcome was average event depth compared with Student's t-test.

RESULTS

45 CPR events (25 before; 20 after) occurred, resulting in 1336 thirty-second epochs (909 before; 427 after). Compared to 2005, average event depth (50±13mm vs. 43±9mm; p=0.047), rate (113±11CC/min vs. 104±8CC/min; p<0.01), and CCF (0.94 [0.93, 0.96] vs. 0.9 [0.85, 0.94]; p=0.013) increased during 2010. CPR epochs during the 2010 period more likely to meet Guidelines for CCF (OR 1.7; CI95: 1.2-2.4; p<0.01), but less likely for rate (OR 0.23; CI95: 0.12-0.44; p<0.01), and depth (OR 0.31; CI95: 0.12-0.86; p=0.024).

CONCLUSIONS

Institution of the 2010 Guidelines was associated with increased CC depth, rate, and CC fraction; yet, achieving 2010 targets for rate and depth was difficult.

[Premature infants bronchopulmonary dysplasia: past and present]

Bronchopulmonary dysplasia (BPD) is the most common chronic respiratory disease in premature infants. BPD was first described by Northway in 1967 as a chronic respiratory condition that developed in premature infants exposed to mechanical ventilation and high oxygen supplementation. DBP is currently defined by the need for supplemental oxygen at 28 days of life (mild BPD) and at the 36 weeks of post-menstrual age (moderate and severe BPD). With the advances of neonatal care, epidemiological characteristics and mechanisms of the disease as well as pathological characteristics and clinical course have profoundly changed within the last two decades, but still no effective curative treatment exists and BPD continue to occur among 10 to 20% of premature infants. Furthermore, BPD is a significant source of respiratory and neuro-cognitive morbidities. Thus, its treatment makes a considerable demand on health services. Regarding its pathophysiological mechanisms, it is now established that BPD is a complex disease combining genetic susceptibility and environmental injuries. The identification of genetic variants involved in BPD is a potential source of innovative development in terms of diagnosis and treatment. Indeed, no curative or effective prophylactic therapeutic exists and BPD treatment is currently symptomatic.

Perioperative central nervous system injury in neonates

Anaesthetic-induced developmental neurotoxicity (AIDN) has been clearly established in laboratory animal models. The possibility of neurotoxicity during uneventful anaesthetic procedures in human neonates or infants has led to serious questions about the safety of paediatric anaesthesia. However, the applicability of animal data to clinical anaesthesia practice remains uncertain. The spectre of cerebral injury due to cerebral hypoperfusion, metabolic derangements, coexisting disease, and surgery itself further muddles the picture. Given the potential magnitude of the public health importance of this issue, the clinician should be cognisant of the literature and ongoing investigations on AIDN, and raise awareness of the risks of both surgery and anaesthesia.

Room air resuscitation and targeted oxygenation for infants at birth in the delivery room

The results of several clinical trials suggest that infants born depressed can be successfully resuscitated with room air. In 2010, the American Heart Association, American Academy of Pediatrics, Neonatal Resuscitation Program, and the International Liaison Committee published new guidelines to initiate the resuscitation of the term neonate with 21% oxygen. Although this recommendation cannot be extrapolated to the preterm neonate, the use of oxygen for resuscitation in this population can be used cautiously.

Delivery room management of meconium-stained infant

This article discusses the historical background, epidemiology, and pathophysiology of meconium-stained amniotic fluid and provides current concepts in delivery room management of meconium-stained neonate including the current Neonatal Resuscitation Program guidelines.

Neonatal resuscitation: foetal physiology and pathophysiological aspects

Although approximately 10% of all newborn infants receive some form of assistance after birth, only 1% of neonates require more advanced measures of life support. Because such situations cannot always be anticipated, paediatricians and neonatologists are frequently unavailable and resuscitation is delegated to the anaesthesiologist. The International Liaison Committee on Resuscitation, the European Resuscitation Council and the American Heart Association have recently updated the guidelines on neonatal resuscitation. The revised guidelines propose a simplified resuscitation algorithm that highlights the central role of respiratory support and promotes an increasing heart rate as the best indicator for effective ventilation. The most striking change in the new guidelines is the recommendation to start resuscitation in term infants with room air rather than 100% oxygen. Continuous pulse oximetry is recommended to monitor both heart rate and an appropriate increase in preductal oxygen saturation. Supplemental oxygen should only be used if, despite effective ventilation, the heart rate does not increase above 100  beats  min(-1), or if oxygenation as indicated by pulse oximetry, remains unacceptably low. This review will focus on foetal physiology and pathophysiological aspects of neonatal adaptation and, thus, attempt to provide a solid basis for understanding the new resuscitation guidelines.

The diagnostic value of a single measurement of superior vena cava flow in the first 24 h of life in very preterm infants

Low superior vena cava (SVC) flow has been associated with intraventricular haemorrhage (IVH) in very preterm infants. We studied the diagnostic value of a single measurement of SVC flow within the first 24 h of life in very preterm infants and its association with occurrence or extension of IVH in a setting of limited availability of neonatal echocardiography. Preterm infants who were born at less than 30 weeks gestation and who had an echocardiogram within 24 h after birth were eligible. Baseline, clinical and ultrasound data were collected. A total of 165 preterm infants were included. Low SVC flow (<41 ml/kg/min) occurred in six infants and was associated with severe IVH and extension of IVH, although this was not significant after adjusting for confounders. The only independently associated variable with low SVC flow was admission temperature (odds ratio 0.27, p = 0.001). A review of SVC flow values shows that these are higher now than initially reported. This study does not show an association of low SVC flow and severe IVH or extension of IVH after adjusting for confounders as a single measurement of SVC flow did not add any diagnostic value in this cohort. Thus, the exact role of SVC flow measurements in the circulatory assessment of preterm infants remains to be elucidated. However, admission temperature may have an effect on systemic blood flow in very preterm infants.

Turn and face the strange - ch..ch..ch..changes to neonatal resuscitation guidelines in the past decade

Resuscitation of newborns has been described since ancient times and is among the most commonly performed emergency medical interventions. The International Liaison Committee on Resuscitation first made recommendations on resuscitation in newborns in 1999. Over the last decade, new research and careful review of the available evidence have resulted in substantial changes to these recommendations - in particular, regarding the assessment of colour, giving supplemental oxygen, suctioning infants born through meconium-stained liquor, confirming endotracheal tube position, the use of pulse oximetry, giving CPAP to premature infants, keeping preterm infants warm using polyethylene wrapping and cooling term infants with encephalopathy. This process has also highlighted the paucity of evidence to support much of the care given to infants in the delivery room and the need for research to refine our techniques.

Use of oxygen for delivery room neonatal resuscitation in non-tertiary Australian and New Zealand hospitals: a survey of current practices, opinions and equipment

BACKGROUND

Delivery room resuscitation of hypoxic newborn infants with pure or 100% oxygen causes oxidative toxicity and increases mortality. Current international resuscitation guidelines therefore recommend that oxygen be used judiciously. However, this requires staff education and special equipment that may not be available in non-tertiary maternity hospitals where the majority of births occur.

AIM

To determine current attitudes, practices and available equipment for the use of air and blended oxygen for newborn delivery room resuscitation in non-tertiary maternity hospitals of Australia and New Zealand (ANZ).

METHODS

Structured questionnaires sent by mail and e-mail after personal phone contact. A total of 203 eligible hospitals in ANZ were identified. A second mailing was conducted a month later for non-responders. RESPONDERS: Final response rate was 64% (n= 130: 70% physicians, 30% midwives). The majority (121, 93%) of respondents were aware of Australian Resuscitation Council recommendations, but only one in five hospitals had the capacity to deliver blended oxygen and 38% used pulse oximeters at delivery. Only 24 (18.5%) hospitals had guidelines. Air would be used by 68 (57%) hospitals to resuscitate term infants compared to 35 (31%) for preterm infants. Most (111, 91%) advocated the use of blended oxygen despite the lack of facilities.

CONCLUSION

Only one in five ANZ non-tertiary maternity hospitals had the capacity to resuscitate newborn infants with air or blended oxygen. Most are aware of current recommendations and agreed that the use of less oxygen would be beneficial for this purpose. Further study into the necessary infrastructure required to implement these guidelines are recommended.