Objective After lowering the Dutch threshold for active treatment from 25 to 24 completed weeks' gestation, survival to discharge increased by 10% in extremely preterm live born infants. Now that... Show moreObjective After lowering the Dutch threshold for active treatment from 25 to 24 completed weeks' gestation, survival to discharge increased by 10% in extremely preterm live born infants. Now that this guideline has been implemented, an accurate description of neurodevelopmental outcome at school age is needed.Design Population-based cohort study.Setting All neonatal intensive care units in the Netherlands.Patients All infants born between 24(0/7) and 26(6/7 )weeks' gestation who were 5.5 years' corrected age (CA) in 2018-2020 were included.Main outcome measures Main outcome measure was neurodevelopmental outcome at 5.5 years. Neurodevelopmental outcome was a composite outcome defined as none, mild or moderate-to-severe impairment (further defined as neurodevelopmental impairment (NDI)), using corrected cognitive score (Wechsler Preschool and Primary Scale of Intelligence Scale-III-NL), neurological examination and neurosensory function. Additionally, motor score (Movement Assessment Battery for Children-2-NL) was assessed. All assessments were done as part of the nationwide, standardised follow-up programme.Results In the 3-year period, a total of 632 infants survived to 5.5 years' CA. Data were available for 484 infants (77%). At 5.5 years' CA, most cognitive and motor (sub)scales were significantly lower compared with the normative mean. Overall, 46% had no impairment, 36% had mild impairment and 18% had NDI. NDI-free survival was 30%, 49% and 67% in live born children at 24, 25 and 26 weeks' gestation, respectively (p<0.001).Conclusions After lowering the threshold for supporting active treatment from 25 to 24 completed weeks' gestation, a considerable proportion of the surviving extremely preterm children did not have any impairment at 5.5 years' CA. Show less
Objective To evaluate the association between neuroimaging and outcome in infants with congenital cytomegalovirus (cCMV), focusing on qualitative MRI and quantitative diffusion-weighted imaging of... Show moreObjective To evaluate the association between neuroimaging and outcome in infants with congenital cytomegalovirus (cCMV), focusing on qualitative MRI and quantitative diffusion-weighted imaging of white matter abnormalities (WMAs).Methods Multicentre retrospective cohort study of 160 infants with cCMV (103 symptomatic). A four-grade neuroimaging scoring system was applied to cranial ultrasonography and MRI acquired at <= 3 months. WMAs were categorised as multifocal or diffuse. Temporal-pole WMAs (TPWMAs) consisted of swollen or cystic appearance. Apparent diffusion coefficient (ADC) values were obtained from frontal, parieto-occipital and temporal white matter regions. Available follow-up MRI at >= 6 months (N=14) was additionally reviewed. Neurodevelopmental assessment included motor function, cognition, behaviour, hearing, vision and epilepsy. Adverse outcome was defined as death or moderate/severe disability.Results Neuroimaging scoring was associated with outcome (p<0.001, area under the curve 0.89 +/- 0.03). Isolated WMAs (IWMAs) were present in 61 infants, and WMAs associated with other lesions in 30. Although TPWMAs and diffuse pattern often coexisted in infants with IWMAs (p<0.001), only TPWMAs were associated with adverse outcomes (OR 7.8; 95% CI 1.4 to 42.8), including severe hearing loss in 20% and hearing loss combined with other moderate/severe disabilities in 15%. Increased ADC values were associated with higher neuroimaging scores, WMAs based on visual assessment and IWMAs with TPWMAs. ADC values were not associated with outcome in infants with IWMAs. Findings suggestive of progression of WMAs on follow-up MRI included gliosis and malacia.Conclusions Categorisation of neuroimaging severity correlates with outcome in cCMV. In infants with IWMAs, TPWMAs provide a guide to prognosis. Show less
Boer, A. de; Proost, L. de; Vries, M. de; Hogeveen, M.; Verweij, E.J.T.; Geurtzen, R. 2023
ObjectiveA shared decision-making (SDM) approach is recommended for prenatal decisions at the limit of viability, with a guiding role for parental values. People born extremely premature experience... Show moreObjectiveA shared decision-making (SDM) approach is recommended for prenatal decisions at the limit of viability, with a guiding role for parental values. People born extremely premature experience the consequences of the decision made, but information about their perspectives on prenatal decisions is lacking. Therefore, this study aims to describe their perspectives on what is important in decision-making at the limit of viability.DesignSemi-structured focus group discussions were conducted, recorded and transcribed verbatim. The data were independently analysed by two researchers in Atlas.ti.ResultsFour focus groups were conducted in the Netherlands, with five to six participants each, born between 240/7 and 300/7 weeks gestation in the period between 1965 and 2002. Considering their personal life experiences and how their extremely premature birth affected their families, the participants reflected on decision-making at the limit of viability. Various considerations were discussed and summarised into the following themes: anticipated parental regret, the wish to look at the baby directly after birth, to give the infant a chance at survival, quality of life, long-term outcomes for the infant and the family, and religious or spiritual considerations.ConclusionsInsights into the perspectives of adults born extremely premature deepened our understanding of values considered in decision-making at the limit of viability. Results point out the need for a more individualised prediction of the prognosis and more extensive information on the lifelong impact of an extremely premature birth on both the infant and the family. This could help future parents and healthcare professionals in value-laden decision-making. Show less
Halbmeijer, N.M.; Sonnaert, M.; Swarte, R.M.; Koopman-Esseboom, C.; Stuijvenberg, M. van; Tollenaer, S.M.D.; ... ; SToP-BPD Study Grp 2023
Objective To explore clinical effect modifiers of systemic hydrocortisone in ventilated very preterm infants for survival and neurodevelopmental outcome at 2 years' corrected age (CA).Design... Show moreObjective To explore clinical effect modifiers of systemic hydrocortisone in ventilated very preterm infants for survival and neurodevelopmental outcome at 2 years' corrected age (CA).Design Secondary analysis of a randomised placebo-controlled trial.Setting Dutch and Belgian neonatal intensive care units.Patients Infants born <30 weeks' gestational age (GA), ventilator-dependent in the second week of postnatal life.Intervention Infants were randomly assigned to systemic hydrocortisone (cumulative dose 72.5 mg/kg; n=182) or placebo (n=190).Main outcome measures The composite of death or neurodevelopmental impairment (NDI) at 2 years' CA and its components. Candidate effect modifiers (GA, small for GA, respiratory index, sex, multiple births, risk of moderate/severe bronchopulmonary dysplasia or death) were analysed using regression models with interaction terms and subpopulation treatment effect pattern plots.Results The composite outcome was available in 356 (96.0%) of 371 patients (one consent withdrawn). For this outcome, treatment effect heterogeneity was seen across GA subgroups (<27 weeks: hydrocortisone (n=141) vs placebo (n=156), 54.6% vs 66.2%; OR 0.61 (95% CI 0.38 to 0.98); >= 27 weeks: hydrocortisone (n=30) vs placebo (n=31), 66.7% vs 45.2%; OR 2.43 (95% CI 0.86 to 6.85); p=0.02 for interaction). This effect was also found for the component death (<27 weeks: 20.1% vs 32.1%; OR 0.53 (95% CI 0.32 to 0.90); =27 weeks: 28.1% vs 16.1%; OR 2.04 (95% CI 0.60 to 6.95); p=0.049 for interaction) but not for the component NDI. No differential treatment effects were observed across other subgroups.Conclusion This secondary analysis suggests that in infants <27 weeks' GA, systemic hydrocortisone may improve the outcome death or NDI, mainly driven by itscomponent death. There was insufficient evidence for other selected candidate effect modifiers. Show less
ObjectiveApplication of a face mask may provoke the trigeminocardiac reflex, leading to apnoea and bradycardia. This study investigates whether re-application of a face mask in preterm infants at... Show moreObjectiveApplication of a face mask may provoke the trigeminocardiac reflex, leading to apnoea and bradycardia. This study investigates whether re-application of a face mask in preterm infants at birth alters the risk of apnoea compared with the initial application, and identify factors that influence this risk. MethodsResuscitation videos and respiratory function monitor data collected from preterm infants ResultsIn total, 111 infants were included with 404 mask applications (102 initial and 302 subsequent mask applications). In 254/404 (63%) applications, infants were breathing prior to mask application, followed by apnoea after 67/254 (26%) mask applications. Apnoea and bradycardia occurred significantly more often after the initial mask application compared with subsequent applications (apnoea initial: 32/67 (48%) and subsequent: 44/187 (24%), p<0.001; bradycardia initial: 61% and subsequent 21%, p<0.001). Apnoea was followed by bradycardia in 73% and 71% of the initial and subsequent mask applications, respectively (p=0.607).In a logistic regression model, a lower breathing rate (OR 0.908 (95% CI 0.847 to 0.974), p=0.007) and heart rate (OR 0.935 (95% CI 0.901 to 0.970), p<0.001) prior to mask application were associated with an increased likelihood of becoming apnoeic following subsequent mask applications. ConclusionIn preterm infants at birth, apnoea and bradycardia occurs more often after an initial mask application than subsequent applications, with lower heart and breathing rates increasing the risk of apnoea in subsequent applications. Show less
BackgroundPreterm infants commonly receive red blood cell (RBC), platelet and fresh frozen plasma (FFP) transfusions. The aim of this Neonatal Transfusion Network survey was to describe current... Show moreBackgroundPreterm infants commonly receive red blood cell (RBC), platelet and fresh frozen plasma (FFP) transfusions. The aim of this Neonatal Transfusion Network survey was to describe current transfusion practices in Europe and to compare our findings to three recent randomised controlled trials to understand how clinical practice relates to the trial data. MethodsFrom October to December 2020, we performed an online survey among 597 neonatal intensive care units (NICUs) caring for infants with a gestational age (GA) of ResultsResponses from 343 NICUs (response rate: 57%) are presented and showed substantial variation in clinical practice. For RBC transfusions, 70% of NICUs transfused at thresholds above the restrictive thresholds tested in the recent trials and 22% below the restrictive thresholds. For platelet transfusions, 57% of NICUs transfused at platelet count thresholds above 25x10(9)/L in non-bleeding infants of GA of <28 weeks, while the 25x10(9)/L threshold was associated with a lower risk of harm in a recent trial. FFP transfusions were administered for coagulopathy without active bleeding in 39% and for hypotension in 25% of NICUs. Transfusion volume, duration and rate varied by factors up to several folds between NICUs. ConclusionsTransfusion thresholds and aspects of administration vary widely across European NICUs. In general, transfusion thresholds used tend to be more liberal compared with data from recent trials supporting the use of more restrictive thresholds. Further research is needed to identify the barriers and enablers to incorporation of recent trial findings into neonatal transfusion practice. Show less
ObjectiveTo compare the effect of two different automated oxygen control devices on time preterm infants spent in different oxygen saturation (SpO(2)) ranges during their entire stay in the... Show moreObjectiveTo compare the effect of two different automated oxygen control devices on time preterm infants spent in different oxygen saturation (SpO(2)) ranges during their entire stay in the neonatal intensive care unit (NICU). DesignRetrospective cohort study of prospectively collected data. SettingTertiary level neonatal unit in the Netherlands. PatientsPreterm infants (OxyGenie 75 infants, CLiO2 111 infants) born at 24-29 weeks' gestation receiving at least 72 hours of respiratory support between October 2015 and November 2020. InterventionsInspired oxygen concentration was titrated by the OxyGenie controller (SLE6000 ventilator) between February 2019 and November 2020 and the CLiO2 controller (AVEA ventilator) between October 2015 and December 2018 as standard of care. Main outcome measuresTime spent within SpO(2) target range (TR, 91-95% for either epoch) and other SpO(2) ranges. ResultsTime spent within the SpO(2) TR when receiving supplemental oxygen was higher during OxyGenie control (median 71.5 [IQR 64.6-77.0]% vs 51.3 [47.3-58.5]%, p<0.001). Infants under OxyGenie control spent less time in hypoxic and hyperoxic ranges (SpO(2)<80%: 0.7 [0.4-1.4]% vs 1.2 [0.7-2.3]%, p98%: 1.0 [0.5-2.4]% vs 4.0 [2.0-7.9]%, p<0.001). Both groups received a similar FiO(2) (29.5 [28.0-33.2]% vs 29.6 [27.7-32.1]%, p=not significant). ConclusionsOxygen saturation targeting was significantly different in the OxyGenie epoch in preterm infants, with less time in hypoxic and hyperoxic SpO(2) ranges during their stay in the NICU. Show less
Halbmeijer, N.M.; Onland, W.; Cools, F.; Swarte, R.M.; Heide-Jalving, M. van der; Dijk, P.; ... ; STOP-BPD Study Grp 2023
ObjectiveTo report the parent-reported behavioural outcomes of infants included in the Systemic Hydrocortisone To Prevent Bronchopulmonary Dysplasia in preterm infants study at 2 years' corrected... Show moreObjectiveTo report the parent-reported behavioural outcomes of infants included in the Systemic Hydrocortisone To Prevent Bronchopulmonary Dysplasia in preterm infants study at 2 years' corrected age (CA). DesignRandomised placebo-controlled trial. SettingDutch and Belgian neonatal intensive care units. PatientsInfants born <30 weeks' gestation and/or birth weight <1250 g, and ventilator dependent in the second week of life. InterventionInfants were randomly assigned to a 22-day course of systemic hydrocortisone (cumulative dose 72.5 mg/kg; n=182) or placebo (n=190). Main outcome measuresParent-reported behavioural outcomes at 2 years' CA assessed with the Child Behavior Checklist (CBCL 11/2-5). ResultsParents completed the CBCL of 183 (70% (183/262)) infants (hydrocortisone group, n=96; placebo group, n=87). Multiple imputation was used to account for missing data. Infants with critically elevated T-scores (>55) were found in 22.9%, 19.1% and 29.4% of infants for total, internalising and externalising problems, respectively; these scores were not significantly different between groups (mean difference -1.52 (95% CI -4.00 to 0.96), -2.40 (95% CI -4.99 to 0.20) and -0.81 (95% CI -3.40 to 1.77), respectively). In the subscales, we found a significantly lower T-score for anxiety problems in the hydrocortisone group (mean difference -1.26, 95% CI -2.41 to -0.12). ConclusionThis study found high rates of behaviour problems at 2 years' CA following very preterm birth, but these problems were not associated with hydrocortisone treatment initiated between 7 and 14 days after birth in ventilated preterm infants. Show less
Chung, P.K.; Schornagel, F.; Oudesluys-Murphy, A.M.; Vries, L.S. de; Soede, W.; Zwet, E. van; Vossen, A. 2022
ObjectiveTo evaluate clinical, audiological and neuroimaging findings in a cohort of infants diagnosed with congenital cytomegalovirus (cCMV) infection after failure at newborn hearing screening.... Show moreObjectiveTo evaluate clinical, audiological and neuroimaging findings in a cohort of infants diagnosed with congenital cytomegalovirus (cCMV) infection after failure at newborn hearing screening. MethodsA prospective observational study in the Netherlands, using the existing newborn hearing screening infrastructure for well babies. Between July 2012 and November 2016, cytomegalovirus (CMV) PCR testing of neonatally obtained dried blood spots (DBS) was offered to all infants who failed newborn hearing screening. Clinical, neuroimaging and audiological data were collected. ResultsDBS of 1374 infants were successfully tested and 59 were positive for CMV (4.3%). Data of 54 infants were retrieved. Three were small for gestational age and six had microcephaly. Forty-eight (89%) had sensorineural hearing loss (SNHL), of whom half had unilateral SNHL. In both unilaterally and bilaterally affected children, the majority of the impaired ears had severe or profound hearing loss. Neuroimaging abnormalities were found in 40 of 48 (83%) children who had evaluable cranial ultrasound and/or cerebral MRI. The abnormalities were mild in 34, moderate in 3 and severe in 3 infants. The degree of SNHL and the severity of neuroimaging abnormalities were found to be correlated (p=0.002). ConclusionsThe yield of targeted cCMV screening following newborn hearing screening failure was eight times higher than the estimated national birth prevalence of cCMV. The majority of this cohort of infants with clinically unsuspected cCMV disease had confirmed SNHL, neuroimaging abnormalities and lower than average birth weights and head circumferences. Newborns who fail newborn hearing screening should be tested for CMV to ensure appropriate clinical, neurodevelopmental and audiological follow-up. Show less
Panneflek, T.J.R.; Kuypers, K.L.A.M.; Polglase, G.R.; Hooper, S.B.; Akker, T. van den; Pas, A.B. te 2022
Rationale: Antenatal inflammation, usually associated with chorioamnionitis, is a major cause of premature birth. As inflammation could depress respiratory drive, we have examined the effect of... Show moreRationale: Antenatal inflammation, usually associated with chorioamnionitis, is a major cause of premature birth. As inflammation could depress respiratory drive, we have examined the effect of clinical chorioamnionitis (CCA) on spontaneous breathing in premature infants at birth. Methods: Infants with CCA born <30 weeks' gestation were matched with control infants based on gestational age (+/- 6 days), birth weight (+/- 300 g), antenatal corticosteroids, sex and general anaesthesia. The primary outcome was breathing effort, assessed as minute volume (MV) of spontaneous breathing. We also measured tidal volume (Vt), respiratory rate (RR) and apnoea in the first 5 min and additional physiological parameters in the first 10 min after start of respiratory support. Results: Ninety-two infants were included (n=46 CCA infants vs n=46 controls; median (IQR) gestational age 26(+4) (25(+0)-27(+6)) vs 26(+6) (25(+1)-28(+3)) weeks). MV and Vt were significantly lower (MV: 43 (17-93) vs 70 (31-119) mL/kg/min, p=0.043; Vt: 2.6 (1.9-3.6) vs 2.9 (2.2-4.8) mL/kg/breath, p=0.046), whereas RR was similar in CCA infants compared with controls. Incidence of apnoea was higher (5 (2-6) vs 2 (1-4), p=0.002), and total duration of apnoea was longer (90 (21-139) vs 35 (12-98) s, p=0.025) in CCA infants. CCA infants took significantly longer to reach an oxygen saturation >80% (3:37 (2:10-4:29) vs 2:25 (1:06-3:52) min, p=0.016) and had a lower oxygen saturation at 5 min (77 (66-92) vs 91 (68-94) %, p=0.028), despite receiving more oxygen (62 (48-76) vs 54 (43-73) %, p=0.036). Conclusion: CCA is associated with reduced breathing effort and oxygenation in premature infants at birth. Show less
Panneflek, T.J.R.; Kuypers, K.L.A.M.; Polglase, G.R.; Hooper, S.B.; Akker, T. van den; Pas, A.B. te 2022
RationaleAntenatal inflammation, usually associated with chorioamnionitis, is a major cause of premature birth. As inflammation could depress respiratory drive, we have examined the effect of... Show moreRationaleAntenatal inflammation, usually associated with chorioamnionitis, is a major cause of premature birth. As inflammation could depress respiratory drive, we have examined the effect of clinical chorioamnionitis (CCA) on spontaneous breathing in premature infants at birth. MethodsInfants with CCA born <30 weeks' gestation were matched with control infants based on gestational age (+/- 6 days), birth weight (+/- 300 g), antenatal corticosteroids, sex and general anaesthesia. The primary outcome was breathing effort, assessed as minute volume (MV) of spontaneous breathing. We also measured tidal volume (Vt), respiratory rate (RR) and apnoea in the first 5 min and additional physiological parameters in the first 10 min after start of respiratory support. ResultsNinety-two infants were included (n=46 CCA infants vs n=46 controls; median (IQR) gestational age 26(+4) (25(+0)-27(+6)) vs 26(+6) (25(+1)-28(+3)) weeks). MV and Vt were significantly lower (MV: 43 (17-93) vs 70 (31-119) mL/kg/min, p=0.043; Vt: 2.6 (1.9-3.6) vs 2.9 (2.2-4.8) mL/kg/breath, p=0.046), whereas RR was similar in CCA infants compared with controls. Incidence of apnoea was higher (5 (2-6) vs 2 (1-4), p=0.002), and total duration of apnoea was longer (90 (21-139) vs 35 (12-98) s, p=0.025) in CCA infants. CCA infants took significantly longer to reach an oxygen saturation >80% (3:37 (2:10-4:29) vs 2:25 (1:06-3:52) min, p=0.016) and had a lower oxygen saturation at 5 min (77 (66-92) vs 91 (68-94) %, p=0.028), despite receiving more oxygen (62 (48-76) vs 54 (43-73) %, p=0.036). ConclusionCCA is associated with reduced breathing effort and oxygenation in premature infants at birth. Show less
O'Donnell, C.P.F.; Dekker, J.; Rudiger, M.; Pas, A.B. te 2022
Despite increased amounts of research, most of the evidence that supports treatment of newborns in the delivery room is rated 'low' rather than 'high' quality. This assessment stems largely from a... Show moreDespite increased amounts of research, most of the evidence that supports treatment of newborns in the delivery room is rated 'low' rather than 'high' quality. This assessment stems largely from a lack of evidence from clinical trials. When trials have been performed, the evidence has often been downgraded due to enrolment of small or poorly representative samples, and for lack of blinding of caregivers and outcome assessors. Delivery room trials present particular challenges when obtaining consent, enrolling participants, taking measures to limit bias and identifying appropriate outcome measures. We hope our suggestions as to how future delivery room trials could be more pragmatic will inform the design of large studies that are necessary to allow clinical practice to evolve. Show less
Sande, M.J.A. van de; Lopriore, E.; Verweij, E.J.T.; Bruin, C. de; Slaghekke, F.; Tollenaar, L.S.A. 2022
Objective: To compare short-term clinical outcome after using two different automated oxygen controllers (OxyGenie and CLiO2). Design: Propensity score-matched retrospective observational study.... Show moreObjective: To compare short-term clinical outcome after using two different automated oxygen controllers (OxyGenie and CLiO2). Design: Propensity score-matched retrospective observational study. Setting: Tertiary-level neonatal unit in the Netherlands. Patients: Preterm infants (OxyGenie n=121, CLiO2 n=121) born between 24+0-29+6 weeks of gestation. Median (IQR) gestational age in the OxyGenie cohort was 28+3 (26+3.5-29+0) vs 27+5 (26+5-28+3) in the CLiO2 cohort, respectively 42% and 46% of infants were male and mean (SD) birth weight was 1034 (266) g vs 1022 (242) g. Interventions: Inspired oxygen was titrated by OxyGenie (SLE6000) or CLiO2 (AVEA) during respiratory support. Main outcome measures: Mortality, retinopathy of prematurity (ROP), bronchopulmonary dysplasia and necrotising enterocolitis. Results: Fewer infants in the OxyGenie group received laser coagulation for ROP (1 infant vs 10; risk ratio 0.1 (95% CI 0.0 to 0.7); p=0.008), and infants stayed shorter in the neonatal intensive care unit (NICU) (28 (95% CI 15 to 42) vs 40 (95% CI 25 to 61) days; median difference 13.5 days (95% CI 8.5 to 19.5); p<0.001). Infants in the OxyGenie group had fewer days on continuous positive airway pressure (8.4 (95% CI 4.8 to 19.8) days vs 16.7 (95% CI 6.3 to 31.1); p<0.001) and a significantly shorter days on invasive ventilation (0 (95% CI 0 to 4.2) days vs 2.1 (95% CI 0 to 8.4); p=0.012). There were no statistically significant differences in all other morbidities. Conclusions:In this propensity score-matched retrospective study, the OxyGenie epoch was associated with less morbidity when compared with the CLiO2 epoch. There were significantly fewer infants that received treatment for ROP, received less intensive respiratory support and, although there were more supplemental oxygen days, the duration of stay in the NICU was shorter. A larger study will have to replicate these findings.This study compared the outcomes of matched cohorts of preterm infants who were treated using 2 different automated oxygen controllers. Differences in morbidity were observed. The data suggest that it cannot be assumed that different automated controllers will produce similar results and that randomised controlled trials will be necessary to refine their use appropriately. Show less
Objective To compare short-term clinical outcome after using two different automated oxygen controllers (OxyGenie and CLiO2). Design Propensity score-matched retrospective observational study.... Show moreObjective To compare short-term clinical outcome after using two different automated oxygen controllers (OxyGenie and CLiO2). Design Propensity score-matched retrospective observational study. Setting Tertiary-level neonatal unit in the Netherlands. Patients Preterm infants (OxyGenie n=121, CLiO2 n=121) born between 24+0-29+6 weeks of gestation. Median (IQR) gestational age in the OxyGenie cohort was 28+3 (26+3.5-29+0) vs 27+5 (26+5-28+3) in the CLiO2 cohort, respectively 42% and 46% of infants were male and mean (SD) birth weight was 1034 (266) g vs 1022 (242) g. Interventions Inspired oxygen was titrated by OxyGenie (SLE6000) or CLiO2 (AVEA) during respiratory support. Main outcome measures Mortality, retinopathy of prematurity (ROP), bronchopulmonary dysplasia and necrotising enterocolitis. Results Fewer infants in the OxyGenie group received laser coagulation for ROP (1 infant vs 10; risk ratio 0.1 (95% CI 0.0 to 0.7); p=0.008), and infants stayed shorter in the neonatal intensive care unit (NICU) (28 (95% CI 15 to 42) vs 40 (95% CI 25 to 61) days; median difference 13.5 days (95% CI 8.5 to 19.5); p<0.001). Infants in the OxyGenie group had fewer days on continuous positive airway pressure (8.4 (95% CI 4.8 to 19.8) days vs 16.7 (95% CI 6.3 to 31.1); p<0.001) and a significantly shorter days on invasive ventilation (0 (95% CI 0 to 4.2) days vs 2.1 (95% CI 0 to 8.4); p=0.012). There were no statistically significant differences in all other morbidities. Conclusions In this propensity score-matched retrospective study, the OxyGenie epoch was associated with less morbidity when compared with the CLiO2 epoch. There were significantly fewer infants that received treatment for ROP, received less intensive respiratory support and, although there were more supplemental oxygen days, the duration of stay in the NICU was shorter. A larger study will have to replicate these findings.This study compared the outcomes of matched cohorts of preterm infants who were treated using 2 different automated oxygen controllers. Differences in morbidity were observed. The data suggest that it cannot be assumed that different automated controllers will produce similar results and that randomised controlled trials will be necessary to refine their use appropriately. Show less
Halbmeijer, N.M.; Onland, W.; Cools, F.; Kroon, A.; Heide-jalving, M. van der; Dijk, P.; ... ; SToP-BPD Study Grp 2022
Objective Observational studies in preterm infants suggest that systemic hydrocortisone improves pulmonary condition but may also lead to systemic adverse effects. We report the short-term... Show moreObjective Observational studies in preterm infants suggest that systemic hydrocortisone improves pulmonary condition but may also lead to systemic adverse effects. We report the short-term pulmonary and systemic effects of hydrocortisone initiated in the second week.Design Randomised placebo-controlled trial.Setting Dutch and Belgian neonatal intensive care units.Patients Infants born <30 weeks' gestation and/or birth weight <1250 g, and ventilator dependent in the second week of life.Intervention Infants were randomly assigned to a 22-day course of systemic hydrocortisone (cumulative dose 72.5 mg/kg; n=182) or placebo (n=190).Main outcome measures Data on extubation, ventilator settings, glucose levels, and blood pressure were recorded daily and analysed during the first 7 days of treatment using linear mixed-effects models.Results Infants in the hydrocortisone group (24.3%) failed extubation less often compared with placebo (38.6%, crude risk difference: -14.3% (95% CI: -23.4% to -4.8%)). The estimated difference in daily rate of change between hydrocortisone and placebo was -0.42 cmH(2)O (95% CI: -0.48 to -0.36) for mean airway pressure, -0.02 (95% CI: -0.02 to -0.01) for fraction of inspired oxygen, -0.37 (95% CI: -0.44 to -0.30) for respiratory index, 0.14 mmol/L (95% CI: 0.08 to 0.21) for blood glucose levels and 0.83 mm Hg (95% CI: 0.58 to 1.09) for mean blood pressure.Conclusions Systemic hydrocortisone initiated between 7 and 14 days after birth in ventilated preterm infants improves pulmonary condition, thereby facilitating weaning and extubation from invasive ventilation. The effects of hydrocortisone on blood glucose levels and blood pressure were mild and of limited clinical relevance. Show less
In this retrospective cohort study of the outcomes of infants born <32 week's gestation, moving from a traditional open bay neonatal unit to a new single-room unit was not associated with... Show moreIn this retrospective cohort study of the outcomes of infants born <32 week's gestation, moving from a traditional open bay neonatal unit to a new single-room unit was not associated with significant improvements in morbidity or mortality. Objective: In response to the increasing focus on family-centred care, neonatal intensive care unit (NICU) environments have gradually shifted towards the single-room design. However, the assumed benefits of this emerging design remain a subject of debate. Our goal was to evaluate the impact of single-room versus open-bay care on the risk of neonatal morbidity and mortality in preterm neonates. Design: Retrospective cohort study. Setting: Level III NICU. Patients: Neonates born Main outcome measures: Mortality and morbidities of a cohort of neonates admitted to a new, single-room unit (SRU) were compared with a historical cohort of neonates admitted to an open-bay unit (OBU). Group differences were evaluated and multivariable logistic regression analyses were performed. Results: Three-hundred and fifty-six and 343 neonates were admitted to the SRU and OBU, respectively. No difference in neonatal morbidities and mortality were observed between cohorts (bronchopulmonary dysplasia: OR 1.08, 95% CI 0.73 to 1.58, p=0.44; retinopathy of the prematurity stage >= 2: OR 1.36, 95% CI 0.84 to 2.22, p=0.10; intraventricular haemorrhage: OR 0.89, 95% CI 0.59 to 1.34, p=0.86; mortality: OR 1.55, 95% CI 0.75 to 3.20, p=0.28). In adjusted regression models, single-room care was independently associated with a decreased risk of symptomatic patent ductus arteriosus (adjusted OR 0.54, 95% CI 0.31 to 0.95). No independent association between single-room care and any of the other investigated outcomes was observed. Conclusions: Implementation of single-rooms in our NICU did not lead to a significant reduction in neonatal morbidity and mortality outcomes. Show less
Beek, P.E. van; Rijken, M.; Broeders, L.; Horst, H.J. ter; Koopman-Esseboom, C.; Kort, E. de; ... ; EPI-DAF Study Grp 2022
Objective In 2010, the Dutch practice regarding initiation of active treatment in extremely preterm infants was lowered from 25 completed weeks' to 24 completed weeks' gestation. The nationwide... Show moreObjective In 2010, the Dutch practice regarding initiation of active treatment in extremely preterm infants was lowered from 25 completed weeks' to 24 completed weeks' gestation. The nationwide Extremely Preterm Infants - Dutch Analysis on Follow-up Study was set up to provide up-to-date data on neurodevelopmental outcome at 2 years' corrected age (CA) after this guideline change. Design: National cohort study. Patients All live born infants between 24(0/7) weeks' and 26(6/7) weeks' gestational age who were 2 years' CA in 2018-2020. Main outcome measure Impairment at 2 years' CA, based on cognitive score (Bayley-III-NL), neurological examination and neurosensory function. Results 651 of 991 live born infants (66%) survived to 2 years' CA, with data available for 554 (85%). Overall, 62% had no impairment, 29% mild impairment and 9% moderate-to-severe impairment (further defined as neurodevelopmental impairment, NDI). The percentage of survivors with NDI was comparable for infants born at 24 weeks', 25 weeks' and 26 weeks' gestation. After multivariable analysis, severe brain injury and low maternal education were associated with higher odds on NDI. NDI-free survival was 48%, 67% and 75% in neonatal intensive care unit (NICU)-admitted infants at 24, 25 and 26 weeks' gestation, respectively. Conclusions Lowering the threshold has not been accompanied by a large increase in moderate-to-severely impaired infants. Among live-born and NICU-admitted infants, an increase in NDI-free survival was observed from 24 weeks' to 26 weeks' gestation. This description of a national cohort with high follow-up rates gives an accurate description of the range of outcomes that may occur after extremely preterm birth.In a Dutch national cohort of infants born 24+0 to 26+6/7 weeks gestation born after changes to guidelines supporting active treatment at 24+0 weeks, the majority did not have neurodevelopmental impairment at 2-year follow up as defined in this study. Show less
Wagner, M.; Boer, M.C. den; Jansen, S.; Groepel, P.; Visser, R.; Witlox, R.S.G.M.; ... ; Pas, A.B. te 2021
Objective The aim of this study was to determine the experience with, and the feasibility of, point-of-view video recordings using eye-tracking glasses for training and reviewing neonatal... Show moreObjective The aim of this study was to determine the experience with, and the feasibility of, point-of-view video recordings using eye-tracking glasses for training and reviewing neonatal interventions during the COVID-19 pandemic. Design Observational prospective single-centre study. Setting Neonatal intensive care unit at the Leiden University Medical Center. Participants All local neonatal healthcare providers. Intervention There were two groups of participants: proceduralists, who wore eye-tracking glasses during procedures, and observers who later watched the procedures as part of a video-based reflection. Main outcome measures The primary outcome was the feasibility of, and the proceduralists and observers' experience with, the point-of-view eye-tracking videos as an additional tool for bedside teaching and video-based reflection. Results We conducted 12 point-of-view recordings on 10 different patients (median gestational age of 30.9 +/- 3.5 weeks and weight of 1764 g) undergoing neonatal intubation (n=5), minimally invasive surfactant therapy (n=5) and umbilical line insertion (n=2). We conducted nine video-based observations with a total of 88 observers. The use of point-of-view recordings was perceived as feasible. Observers further reported the point-of-view recordings to be an educational benefit for them and a potentially instructional tool during COVID-19. Conclusion We proved the practicability of eye-tracking glasses for point-of-view recordings of neonatal procedures and videos for observation, educational sessions and logistics considerations, especially with the COVID-19 pandemic distancing measures reducing bedside teaching opportunities.Single centre evaluation of the use of eye-tracking glasses during neonatal procedures as an additional tool for outside teaching and video-based reflection. The feasibility and potential benefit during a pandemic is reported. Show less
Objective To assess feasibility of transcutaneous electromyography of the diaphragm (dEMG) as a monitoring tool for vital signs and diaphragm activity in the delivery room (DR).Design Prospective... Show moreObjective To assess feasibility of transcutaneous electromyography of the diaphragm (dEMG) as a monitoring tool for vital signs and diaphragm activity in the delivery room (DR).Design Prospective observational study.Setting Delivery room.Patients Newborn infants requiring respiratory stabilisation after birth.Interventions In addition to pulse oximetry (PO) and ECG, dEMG was measured with skin electrodes for 30 min after birth.Outcome measures We assessed signal quality of dEMG and ECG recording, agreement between heart rate (HR) measured by dEMG and ECG or PO, time between sensor application and first HR read-out and agreement between respiratory rate (RR) measured with dEMG and ECG, compared with airway flow. Furthermore, we analysed peak, tonic and amplitude diaphragmatic activity from the dEMG-based respiratory waveform.Results Thirty-three infants (gestational age: 31.7±2.8 weeks, birth weight: 1525±661 g) were included.18%±14% and 22%±21% of dEMG and ECG data showed poor quality, respectively. Monitoring HR with dEMG was fast (median 10 (IQR 10–11) s) and accurate (intraclass correlation coefficient (ICC) 0.92 and 0.82 compared with ECG and PO, respectively). RR monitoring with dEMG showed moderate (ICC 0.49) and ECG low (ICC 0.25) agreement with airway flow. Diaphragm activity started high with a decreasing trend in the first 15 min and subsequent stabilisation.Conclusion Monitoring vital signs with dEMG in the DR is feasible and fast. Diaphragm activity can be detected and described with dEMG, making dEMG promising for future DR studies. Show less
