Measurement of lung oxygenation by near-infrared spectroscopy in preterm infants with bronchopulmonary dysplasia.

INTRODUCTION: It has recently been reported that it is possible to monitor lung oxygenation (rSO2L) by near-infrared spectroscopy (NIRS) in preterm infants with respiratory distress syndrome (RDS). Thus, our aim was to assess the possibility of monitoring rSO2L in infants with evolving and established bronchopulmonary dysplasia (BPD) and to evaluate if rSO2L correlates with BPD severity and other oxygenation indices. METHODS: We studied 40 preterm infants with gestational age ≤30 weeks at risk for BPD. Patients were continuously studied for 2 h by NIRS at 28 ± 7 days of life and 36 weeks ± 7 days of postmenstrual age. RESULTS: rSO2L was similar at the first and second NIRS recordings (71.8 ± 7.2 vs. 71.4 ± 4.2%) in the overall population, but it was higher in infants with mild than in those with moderate-to-severe BPD at both the first (73.3 ± 3.1 vs. 71.2 ± 3.2%, p = .042) and second (72.3 ± 2.8 vs. 70.5 ± 2.8, p = .049) NIRS recording. A rSO2L cutoff value of 71.6% in the first recording was associated with a risk for moderate-to-severe BPD with a sensitivity of 66% and a specificity of 60%. Linear regression analysis demonstrated a significant positive relationship between rSO2L and SpO2/FiO2 ratio (p = .013) and a/APO2 (p = .004). CONCLUSIONS: Monitoring of rSO2L by NIRS in preterm infants with evolving and established BPD is feasible and safe. rSO2L was found to be higher in infants with mild BPD, and predicts the risk for developing moderate-to-severe BPD and correlates with other indices of oxygenation.

Cardiac Hypertrophy Associated with Insulin Therapy in Extremely Preterm Infants.

BACKGROUND: In the neonatal period, cardiac hypertrophy (CH) has been commonly associated with hyperinsulinemic pathologies, and the first case of CH in an extremely preterm infant treated with insulin infusion has recently been reported. To confirm this association, we report a case series of patients who developed CH after insulin therapy. METHODS: Infants with gestational age < 30 weeks and birth weight < 1500 g, born from November 2017 to June 2022, were studied if they developed hyperglycemia requiring treatment with insulin and had echocardiographic diagnosis of CH. RESULTS: We studied 10 extremely preterm infants (24.3 ± 1.4 weeks) who developed CH at a mean age of 124 ± 37 h of life, 98 ± 24 h after the initiation of insulin therapy. All surviving patients had resolution of CH at discharge, while three of four (75%) of the deceased patients had persistent CH. CONCLUSIONS: Our case series supports the association between the development of CH and insulin therapy in extremely preterm infants and suggests further caution and the need for echocardiographic monitoring when treating these fragile patients with insulin.

Morphine exposure and neurodevelopmental outcome in infants born extremely preterm.

AIM: To investigate the association between morphine exposure in the neonatal period and neurodevelopment at 2 and 5 years of age while controlling for potential confounders. METHOD: We performed a retrospective, single-centre cohort study on 106 infants (60 males, 46 females; mean gestational age 26 weeks [SD 1]) born extremely preterm (gestational age < 28 weeks). Morphine administration was expressed as cumulative dose (mg/kg) until term-equivalent age. Neurodevelopmental outcome was assessed at 2 years with the Bayley Scales of Infant and Toddler Development, Third Edition, Dutch version and at 5 years with the Wechsler Preschool and Primary Scale of Intelligence, Third Edition, Dutch version. Multiple linear regression analysis was used to assess the association between morphine exposure and outcome. RESULTS: Sixty-four out of 106 (60.4%) infants included in the study received morphine. Morphine exposure was not associated with poorer motor, cognitive, and language subscores of the Bayley Scales of Infant and Toddler Development, Third Edition, Dutch version at 2 years. Morphine exposure was associated with lower Full-Scale IQ scores (p = 0.008, B = -9.3, 95% confidence interval [CI] = -15.6 to -3.1) and Performance IQ scores (p = 0.005, B = -17.5, 95% CI = -27.9 to -7) at 5 years of age. INTERPRETATION: Morphine exposure in infants born preterm is associated with poorer Full-Scale IQ and Performance IQ at 5 years. Individualized morphine administration is advised in infants born extremely preterm.

Enteral and Parenteral Treatment with Caffeine for Preterm Infants in the Delivery Room: A Randomised Trial.

BACKGROUND: Early treatment with caffeine in the delivery room (DR) has been proposed to decrease the need for mechanical ventilation (MV) by limiting episodes of apnoea and improving respiratory mechanics in preterm infants. Our aim was to verify the hypothesis that intravenous or enteral administration of caffeine can be performed in the preterm infant in the DR. METHODS: Infants with 25±0-29±6 weeks of gestational age were enrolled and randomised to receive 20 mg/kg of caffeine citrate intravenously, via the umbilical vein, or enterally, through an orogastric tube, within 10 min of birth. Caffeine blood level was measured at 60 ± 15 min after administration and 60 ± 15 min before the next dose (5 mg/kg). The primary endpoint was evaluation of the success rate of intravenous and enteral administration of caffeine in the DR. RESULTS: Nineteen patients were treated with intravenous caffeine and 19 with enteral caffeine. In all patients the procedure was successfully performed. Peak blood level of caffeine 60 ± 15 min after administration in the DR was found to be below the therapeutic range (5 µg/mL) in 25 % of samples and above the therapeutic range in 3%. Blood level of caffeine 60 ± 15 min before administration of the second dose was found to be below the therapeutic range in 18% of samples. CONCLUSIONS: Intravenous and enteral administration of caffeine can be performed in the DR without interfering with infants' postnatal assistance. Some patients did not reach the therapeutic range, raising the question of which dose is the most effective to prevent MV. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT04044976; EudraCT number 2018-003626-91.

Splanchnic oxygenation during phototherapy in preterm infants with hyperbilirubinemia.

BACKGROUND: It has been reported that preterm infants can develop feeding intolerance during phototherapy (PT) and that PT can affect mesenteric perfusion in these patients. AIMS: Our aim was to assess if PT can decrease regional splanchnic oxygenation (rSO2S) measured by near infrared spectroscopy (NIRS). STUDY DESIGN: We prospectively studied infants with gestational age of 25-34 weeks with hyperbilirubinemia requiring PT. Splanchnic regional oxygenation (rSO2S), oxygen extraction fraction (FOES), and cerebrosplanchnic oxygenation ratio (CSOR) were recorded before, during, and after PT discontinuation. RESULTS: During PT rSO2S and CSOR significantly decreased and this effect lasted for some hours after its interruption. FOES contemporary increased, although this effect was not statistically significant. CONCLUSIONS: PT treatment decreases splanchnic oxygenation in preterm infants likely due to peripheral vasodilation which triggers a redistribution of blood flow. These results can help explain the association between PT and the development of feeding intolerance in preterm infants.

Platelet Count and Volume and Pharmacological Closure with Paracetamol of Ductus Arteriosus in Preterm Infants.

Background: Low platelet count might promote resistance to pharmacological closure with indomethacin and ibuprofen of a hemodynamically significant patent ductus arteriosus (hsPDA). However, no studies have investigated if this occurs with paracetamol. Methods: We retrospectively assessed the correlation between platelet count, mean platelet volume (MPV), and plateletcrit (PCT), as well as the effectiveness of paracetamol in closing hsPDA in infants born at 23+0-31+6 weeks of gestation who were treated with 15 mg/kg/6 h of i.v. paracetamol for 3 days. Results: We studied 79 infants: 37 (47%) Had closure after a course of paracetamol and 42 (53%) did not. Platelet count and PCT did not correlate with paracetamol success or failure in closing hsPDA, while MPV was lower at birth (10.7 ± 1.4 vs. 9.5 ± 1.1; p < 0.001) and prior to starting therapy (11.7 ± 1.9 vs. 11.0 ± 1.6; p = 0.079) in refractory infants. Regression analysis confirmed that the low MVP measured prior to starting the treatment increased the risk of hsPDA paracetamol closure failure (OR 1.664, 95% CI 1.153-2.401). Conclusions: The greater MPV correlated positively with the effectiveness of paracetamol in closing hsPDA, while platelet count and PCT did not influence closure rates. Additional studies are needed to confirm our results.

The management of late preterm infants: effects of rooming-in assistance versus direct admission to neonatal care units.

Late preterm infants (LPIs) represent a significant percentage of all neonates (6-8%), but there are limited published data on their postnatal management. Our aim was to compare the frequency of neonatal intensive care unit (NICU) admission and the breastfeeding rate of LPIs born at 35+0-36+6 weeks of gestation who were cared for by initial rooming in strategy rather than directly admitted to the special care unit (SCU) and, eventually, to the NICU. We carried out a retrospective study in the perinatal centers of Careggi University Hospital (CUH) and San Giovanni di Dio Hospital in Florence, Italy, where the first and second strategies were applied, respectively. Main outcomes were LPIs admission rate at SCU/NICU and breastfeeding rate at discharge. We studied 190 LPIs born at SGDH and 240 born at CUH. The admission rate in SCU (81 vs. 43%; P < 0.001) and NICU (20 vs. 10%; P = 0.008) was higher in SGDH than in CUH, as was the exclusive breastfeeding rate (36 vs. 22%; P < 0.001). However, infants who were assisted in rooming-in at CUH and infants with similar clinical characteristics at SGDH had similar mixed (60 vs. 69%) and exclusive (35 vs. 31%) breastfeeding rates.  Conclusion: Postnatal assistance of LPIs in rooming-in, eventually followed by admission in SCU/NICU based on their clinical conditions, allowed to safely halve their hospitalization. The assistance of infants in rooming-in did not negatively affect their breastfeeding rate. These results support the possibility of assisting LPIs in rooming-in. What is Known: • Late preterm infants represent a significant percentage of all neonates. • Early rooming-in and breastfeeding is recommended for late preterm infants. What is New: • Postnatal assistance of late preterm infants in rooming-in, followed when necessary by admission in neonatal units based on clinical conditions, allowed to safely avoid about half the number of hospitalizations in comparison with direct admission in neonatal units. • This strategy did not affect breastfeeding rate. Infants who were admitted to SCU/NICU after initial rooming-in had worst breastfeeding rate.

Measurement of lung oxygenation by near-infrared spectroscopy in preterm infants with respiratory distress syndrome: A proof-of-concept study.

INTRODUCTION: Noninvasive markers more accurate than FiO2 would be useful to assess the severity of RDS and guide its treatment. Our aim was to assess for the first time the possibility of continuously monitoring lung oxygenation (rSO2 L) by near-infrared spectroscopy (NIRS) and to evaluate whether rSO2 L correlates with other oxygenation indices and RDS severity. METHODS: We carried out this proof-of-concept study on 20 preterm infants with RDS requiring noninvasive respiratory support. Patients were continuously studied for 24 h by NIRS and rSO2 L was correlated with SpO2 /FiO2 ratio, a/APO2 , and O.I. RESULTS: The overall value of rSO2 L was 80.1 ± 6.2%, without significant differences between the right and left hemithorax (80.2 ± 6.7 vs. 80.0 ± 5.7%; p = 0.869). Mean values of total, right, and left rSO2 L did not significantly change during the 24-h study period. Linear regression analysis demonstrated a significant positive relationship between total rSO2 L and SpO2 /FiO2 ratio (p < 0.001) and a/APO2 (p = 0.040), and a negative relationship between total rSO2 L and O.I. (r = -0.309; p = 0.022). CONCLUSIONS: Continuous monitoring of rSO2 L by NIRS in preterm infants with RDS is feasible and safe. The correlation of rSO2 L with other indices of oxygenation and RDS severity supports the accuracy and reliability of this measurement.

Feeding intolerance during phototherapy in preterm infants.

OBJECTIVE: Many very preterm infants are treated with phototherapy (PT) for hyperbilirubinemia and it has been reported that PT can negatively affect gut perfusion. Thus, our aim was to evaluate the occurrence of feeding intolerance in the course of PT in these patients. METHODS: We retrospectively studied infants born at 25+0-31+6 weeks from November 2017 to April 2020 who required PT during the first two weeks of life. Patients were used as their own controls recording for each one the occurrence of feeding intolerance after starting PT and the resumption of feeding tolerance after its termination. RESULTS: We studied 125 preterm infants of whom 58 (46%) developed a feeding intolerance which disappeared in 47 (81%) of them at the end of PT. Regression analysis showed a trend toward a not significant decrease of risk of feeding intolerance in infants with higher birth weight and age at the start of the first course of PT. CONCLUSION: We found that about half of our patients developed a transient feeding intolerance during PT that ceased in the vast majority of them after termination of the therapy. Further studies are necessary to confirm the correlation between PT and feeding intolerance.

In vivo magnetic resonance imaging evidence of olfactory bulbs changes in a newborn with congenital Citomegalovirus: a case report.

BACKGROUND: Citomegalovirus (CMV) infects approximately 1% of live newborns. About 10% of the infants affected by congenital CMV infection are symptomatic at birth and up to 60% of these infants will develop permanent neurological disabilities. Depending on gestational age (GA) at the time of infection, the involvement of central nervous system (CNS) can lead to malformations of cortical development, calcifications, periventricular white matter lesions and cysts, ventriculomegaly and cerebellar hypoplasia. CASE PRESENTATION: We report the MRI findings in a Caucasian female born at 32 weeks of post-menstrual age with post-birth diagnosis of congenital CMV infection showing an unusual and peculiar marked T2 hyperintensity of the inner part of olfactory bulbs in addition to the CMV related diffuse brain involvement. Despite the known extensively described fetal and neonatal Magnetic Resonance Imaging (MRI) findings in CMV infected fetuses and newborns, any in vivo MRI depiction of olfactory system damage have never been reported so far. Nevertheless, in murine studies CMV is known to infect the placenta during pregnancy showing particular tropism for neural stem cells of the olfactory system and previous neuropathologic study on CMV infected human fetal brains from 23 to 28 weeks of GA reported damage in the olfactory bulbs (OB) consisting in disseminated cytomegalic cells, inflammation, necrosis and neuronal and radial glial cell loss. Therefore, we assume an OB involvement and damage in congenital CMV infection. CONCLUSION: To our knowledge this is the first in vivo MRI evidence of OB damage in a newborn with congenital CMV infection that may give new insights on CMV infection.

Cerebral and splanchnic oxygenation during automated control of inspired oxygen (FiO2 ) in preterm infants.

OBJECTIVES: Our aim in this study was to assess the effect of the Predictive Intelligent Control of Oxygenation (PRICO® ) system on cerebral (rSO2 C) and splanchnic (rSO2 S) oxygenation in a cohort of preterm infants with frequent desaturations. METHODS: Twenty infants with gestational age <32 weeks (n = 20) were assigned in random sequence to 12 h of automated or manual adjustment of FiO2 . Over this period, they were studied continuously by near-infrared spectroscopy (NIRS). RESULTS: We found that rSO2 C [68.0% (60.5%-74.7%) vs. 68.5% (62%-72%); p = .824] and rSO2 S [27.0% (17.3%-45.7%) vs. 27.0% (15%-53%); p = .878] were similar during automatic and manual control of FiO2 . Time spent with SpO2 90%-95% was higher during the automatic than manual control of FiO2 , while time spent with SpO2 <80% or >95% was lower. CONCLUSIONS: Automated control of FiO2 with PRICO® system did not improve brain and splanchnic oxygenation in comparison with manual control in a cohort of preterm infants, but it significantly decreased SpO2 fluctuations and limited the duration of both hypoxemia and hyperoxemia.

SAPHO syndrome: the supposed trigger by isotretinoin, the efficacy of adalimumab and the specter of depressive disorder: a case report.

BACKGROUND: SAPHO (synovitis, acne, pustolosis, hyperostosis and osteitis) syndrome is a rare autoinflammatory chronic disorder, presenting with non-infectious osteitis, sterile joint inflammation and skin manifestations including palmoplantar pustolosis and severe acne. It could be often misdiagnosed for its heterogeneous clinical presentation. Treatment is challenging and, due to the rarity of this syndrome, no randomized controlled clinical trials have been conducted. Empirical treatments, including non-steroidal anti-inflammatory drugs (NSAIDs), corticosteroids, antibiotics and bisphosphonates and disease-modifying anti-rheumatic drugs (DMARDs) could be quite effective. Anti-tumor necrosis factor-alpha (anti-TNF-α) agents and interleukin-1 (IL-1) antagonists have shown promising results in refractory patients. Isotretinoin, commonly used for severe acne, has been rarely described as possible trigger of osteo-articular manifestations, in particular sacroiliitis. CASE PRESENTATION: The case of a boy, affected by acne fulminans and depression, who presented with sacroiliitis after a 10-week treatment with isotretinoin is presented. After SAPHO diagnosis, NSAIDs therapy was started but the onset of bilateral gluteal hidradenitis suppurativa required the switch to a TNF-α antagonist (Adalimumab) with the achievement of a good control of the disease. Despite specific therapy with sertraline, the patient continued to complains severe depression. CONCLUSIONS: Our case reports a temporal association between the onset of osteo-articular symptoms and the introduction of isotretinoin, as previously described. However, this timeline is not sufficient to establish a causal role of this drug into the pathogenesis of sacroiliitis. At this regard, further studies are required. The occurrence of hidradenitis suppurativa during SAPHO course supported the introduction of TNF-α blockers with a favourable result, as reported in a few cases in literature. The association between SAPHO syndrome and depressive mood disorders is already reported. Our patient experienced severe depression whose trend seems to be independent from the course of the main disease. Currently, it is not clarified if depression could be considered reactive to the underling disease or if it forms an integral part of the autoinflammatory disorder.

Common symptoms for a rare disease in a girl with sarcoidosis: a case report.

BACKGROUND: Sarcoidosis in pediatric age is uncommon and challenging diagnosis, because manifestations can be significantly variable and non-specific since it is a multisystem disease, and virtually any organ system may be involved. CASE PRESENTATION: In this report, we describe the case of a 12-year-old girl presenting with fatigue and weight loss, with a painless hepato-splenomegaly without additional clinical signs on physical examination. In our patient, once we had ruled out infections, malignancies and granulomatous diseases of childhood, we made diagnosis of sarcoidosis, finding suggestive histological features in two different tissues (liver and lymph nodes) with lung involvement. CONCLUSIONS: Our case points out that pediatricians should consider sarcoidosis in the differential diagnosis in case of systemic symptoms, even in absence of other specific clinical clues, because they represent the most common clinical manifestations on presentation in children, in order to refer promptly the young patient to specialist evaluation.