Acute Epstein-Barr virus infection: Diagnostic challenge in young children, risk factors for hospitalisation and cytomegalovirus co-detection.

AIM: Acute Epstein-Barr virus (aEBV) and cytomegalovirus (CMV) infections frequently have similar manifestations. We aim to evaluate the characteristics of aEBV infection, risk factors for hospitalisation and differences according to CMV IgM detection (EBV-CMV co-detection) in children. METHODS: Retrospective, single-centre study including patients <16 years diagnosed with aEBV infection (positive anti-EBV IgM/Paul-Bunnell test and acute symptomatology). EBV-CMV co-detection was defined as positive CMV IgM. Factors associated with age, hospitalisation and EBV-CMV co-detection were analysed in a multivariate analysis. RESULTS: A total of 149 patients were included (median age 4.6 years). Most frequent manifestations were fever (77%), cervical lymphadenopathy (64%) and elevated liver enzymes (54%). Younger children had lower rate of positive Paul-Bunnell test (35% vs. 87%; p < 0.01), but higher rate of EBV-CMV co-detection (54% vs. 29%; p = 0.03). These children tended to have less typical symptoms of infectious mononucleosis and higher hospitalisation rate. The overall antibiotic prescription was 49%. Hospitalisation (27 children; 18%) was independently associated with prior antibiotic therapy and anaemia. Sixty-two cases (42%) had EBV-CMV co-detection, which was independently associated with elevated liver enzymes and younger age. CONCLUSION: In this study, younger children with aEBV infection presented more frequently with atypical clinical symptoms, had higher EBV-CMV co-detection rates and were more often hospitalised. Hospitalisation was associated with prior antibiotic prescription.

Evaluación renal y multiorgánica en el paciente con encefalopatía hipóxico-isquémica / Renal and multiorgan evaluation in infants with post-asphyxial hypoxic-ischaemic encephalopathy

Resumen Introducción: La encefalopatía hipóxico-isquémica (EHI) moderada-grave secundaria a asfixia perinatal puede afectar a cualquier órgano, empeorando el pronóstico. Objetivo: Evaluar la afectación renal y multiorgánica de estos pacientes. Material y método: Se incluyó a recién nacidos > 35 semanas con EHI moderada-grave tratados con hipotermia activa entre 2010 y 2020. Se evaluó la creatinina en tres periodos: 48-72 horas de vida, entre el 3.o y 7.o día de vida y del 7.o al 28.o día de vida. Resultados: Se incluyeron 135 pacientes: 112 con EHI moderada y 23 con EHI grave. Al comparar ambos grupos, se obtuvieron diferencias significativas a las 48-72 horas y entre 3.o-7.o día de vida. No hubo diferencias al comparar el método de hipotermia. Los pacientes con EHI grave presentaron mayor afectación hemodinámica, respiratoria y hepática. Conclusiones: Neonatos con EHI grave presentan aumento de los niveles de creatinina sérica y mayor afectación multiorgánica respecto a aquellos con EHI moderada.

Abstract Background: Hypoxic-ischemic encephalopathy (HIE) secondary to perinatal asphyxia can affect any organ, worsening the prognosis. Objective: To describe renal and multiorgan involvement in moderate-severe HIE. Material and method: Newborns > 35 weeks diagnosed with moderate-severe HIE who required active hypothermia between 2010-2020 were included. To assess renal involvement, serum creatinine was measured in three different periods: at 48-72 hours, between the 3rd and the 7th day, and from the 7th to the 28th day. Results: A total of 135 patients were included, 112 (83%) with moderate and 23 (17%) with severe HIE. Significant differences were obtained when comparing median creatinine levels at 48-72 hours and between 3-7 days in both groups. There were no differences in creatinine according to the hypothermia method. Patients with severe HIE presented greater hemodynamic, respiratory, and hepatic involvement. Conclusions: Neonates with severe HIE present increased serum creatinine levels and greater multi-organ involvement than those with moderate HIE.

Chylothorax in newborns after cardiac surgery: a rare complication?

The aim of this study was to analyze patients diagnosed with chylothorax after congenital heart disease surgery among a cohort of neonatal patients, comparing the evolution, complications, and prognosis after surgery of patients who were and were not diagnosed with chylothorax, and to analyze possible risk factors that may predict the appearance of chylothorax in this population. Retrospective and observational study included all neonates (less than 30 days since birth) who underwent congenital heart disease surgery in a level III neonatal intensive care department. We included infants born between January 2014 and December 2019. We excluded those infants who were born before 34 weeks of gestational age or whose birth weight was less than 1800 g. We also excluded catheter lab procedures and patent ductus arteriosus closure surgeries. Included patients were divided into two groups depending on whether they were diagnosed with chylothorax or not after surgery, and both groups were compared in terms of perinatal-obstetrical information, surgical data, and NICU course after surgery. We included 149 neonates with congenital heart disease surgery. Thirty-one patients (20.8%) developed chylothorax, and in ten patients (32.3%), it was considered large volume chylothorax. Regarding the evolution of these patients, 22 infants responded to general dietetic measures, a catheter procedure was performed in 9, and 5 of them finally required pleurodesis. Cardiopulmonary bypass, median sternotomy, and delayed sternal closure were the surgical variables associated with higher risks of chylothorax. Patients with chylothorax had a longer duration of inotropic support and mechanical ventilation and took longer to reach full enteral feeds. As complications, they had higher rates of cholestasis, catheter-related sepsis, and venous thrombosis. Although there were no differences in neonatal mortality, patients with chylothorax had a higher rate of mortality after the neonatal period. In a multiple linear regression model, thrombosis and cardiopulmonary bypass multiplied by 10.0 and 5.1, respectively, the risk of chylothorax and have an umbilical vein catheter decreases risk. CONCLUSION: We have found a high incidence of chylothorax after neonatal cardiac surgery, which prolongs the average stay and causes significant morbidity and mortality. We suggested that chylothorax could be an underestimated complication of congenital heart disease surgery during the neonatal period. WHAT IS KNOWN: • Acquired chylothorax in the neonatal period usually appears as a complication of congenital heart disease surgery, being the incidence quite variable among the different patient series (2.5-16.8%). The appearance of chylothorax as a complication of a cardiac surgery increases both mortality and morbidity in these patients, which makes it a quality improvement target in the postsurgical management of this population. WHAT IS NEW: •Most of the published studies include pediatric patients of all ages, from newborns to teenagers, and there is a lack of studies focusing on neonatal populations. The main strength of our study is that it reports, to the best of our knowledge, one of the largest series of neonatal patients receiving surgery for congenital heart disease in the first 30 days after birth. We have found a high incidence of chylothorax after cardiac surgery during the neonatal period compared to other studies. We suggested that chylothorax could be an underestimated complication of congenital heart disease surgery during this period of life.

Lung recruitment in neonatal high-frequency oscillatory ventilation with volume-guarantee.

BACKGROUND AND OBJECTIVES: The optimal lung volume strategy during high-frequency oscillatory ventilation (HFOV) is reached by performing recruitment maneuvers, usually guided by the response in oxygenation. In animal models, secondary spontaneous change in oscillation pressure amplitude (ΔPhf) associated with a progressive increase in mean airway pressure during HFOV combined with volume guarantee (HFOV-VG) identifies optimal lung recruitment. The aim of this study was to describe recruitment maneuvers in HFOV-VG and analyze whether changes in ΔPhf might be an early predictor for lung recruitment in newborn infants with severe respiratory failure. DESIGN AND METHODS: The prospective observational study was done in a tertiary-level neonatology department. Changes in ΔPhf were analyzed during standardized lung recruitment after initiating early rescue HFOV-VG in preterm infants with severe respiratory failure. RESULTS: Twenty-seven patients were included, with a median gestational age of 24 weeks (interquartile range [IQR]: 23-25). Recruitment maneuvers were performed, median baseline mean airway pressure (mPaw) was 11 cm H2 O (IQR: 10-13), median critical lung opening mPaw during recruitment was 14 cm H2 O (IRQ: 12-16), and median optimal mPaw was 12 cm H2 O (IQR: 10-14, p < 0.01). Recruitment maneuvers were associated with an improvement in oxygenation (FiO2 : 65.0 vs. 45.0, p < 0.01, SpO2/FiO2 ratio: 117 vs. 217, p < 0.01). ΔPhf decreased significantly after lung recruitment (mean amplitude: 23.0 vs. 16.0, p < 0.01). CONCLUSION: In preterm infants with severe respiratory failure, the lung recruitment process can be effectively guided by ΔPhf on HFOV-VG.

Comorbilidades y evolución de la función pulmonar de pacientes con atresia esofágica congénita / Comorbidities and course of lung function in patients with congenital esophageal atresia

Objetivo. Describir las características epidemiológicas, el seguimiento hospitalario y la evolución de los pacientes intervenidos por atresia esofágica y su repercusión en la función pulmonar. Población y métodos. Estudio retrospectivo, longitudinal y analítico. Se revisaron las historias clínicas de pacientes con atresia esofágica nacidos entre 1996 y 2017. Se registraron datos perinatales, tipo de atresia, malformaciones asociadas, complicaciones respiratorias y digestivas, y los datos espirométricos durante tres años. Resultados. Se incluyeron 97 pacientes. El tipo de atresia más frecuente fue el III y el síndrome más frecuente, la trisomía 21. El 13,4 % fallecieron en el período neonatal. El 23,8 % de los pacientes estuvo en seguimiento por Neumología y presentó como complicaciones respiratorias exacerbaciones (el 46,4 %), sibilancias o asma (el 36 %), neumonías (el 26,8 %). El reflujo gastroesofágico fue factor de riesgo de sibilancias (OR 5,31; p = 0,002), exacerbaciones (OR 4,00; p = 0,009) y neumonías (OR 3,24; p = 0,02). En la primera espirometría (n = 20), un 65 % presentaba patrón normal; un 30 %, restrictivo, y un 5 %, mixto. En la segunda espirometría (n = 19), un 42,1 % presentaba patrón normal; un 31,6 %, restrictivo; un 15,8 %, obstructivo, y un 10,5 %, mixto. En la tercera espirometría (n = 14), el 50 % presentaba un patrón espirométrico normal; el 21,4 %, restrictivo; el 14,3 %, obstructivo, y un 14,3 %, mixto. Conclusiones. En nuestra muestra de pacientes, una importante proporción presentó comorbilidades respiratorias y digestivas. La función pulmonar empeoró progresivamente.

Objective. To describe the epidemiological characteristics, hospital follow-up, and course of patients who underwent surgery for esophageal atresia and its consequences on lung function. Population and methods. Retrospective, longitudinal, and analytical study. The medical records of patients with esophageal atresia born between 1996 and 2017 were reviewed. Perinatal data, type of atresia, associated malformations, respiratory and gastrointestinal complications, and spirometry data were recorded over 3 years. Results. A total of 97 patients were included. The most common type of atresia was III, and the most frequent syndrome, trisomy 21; 13.4 % of patients died in the neonatal period; 23.8 % were followed up by the Department of Pulmonology, and their respiratory complications included exacerbations (46.4 %), wheezing or asthma (36 %), and pneumonia (26.8 %). Gastroesophageal reflux was a risk factor for wheezing (OR: 5.31; p = 0.002), exacerbations (OR: 4.00; p = 0.009), and pneumonia (OR: 3.24; p = 0.02). In the first spirometry (n = 20), the pattern was normal in 65 %; restrictive in 30 %; and mixed in 5 %. In the second spirometry (n = 19), the pattern was normal in 42.1 %; restrictive in 31.6 %; obstructive in 15.8 %, and mixed in 10.5 %. In the third spirometry (n = 14), the pattern was normal in 50 %; restrictive in 21.4 %; obstructive in 14.3 %, and mixed in 14.3 %.Conclusions. In our sample of patients, a large proportion had respiratory and gastrointestinal comorbidities. Lung function worsened progressively.

Comorbidities and course of lung function in patients with congenital esophageal atresia. / Comorbilidades y evolución de la función pulmonar de pacientes con atresia esofágica congénita.

OBJECTIVE: To describe the epidemiological characteristics, hospital follow-up, and course of patients who underwent surgery for esophageal atresia and its consequences on lung function. POPULATION AND METHODS: Retrospective, longitudinal, and analytical study. The medical records of patients with esophageal atresia born between 1996 and 2017 were reviewed. Perinatal data, type of atresia, associated malformations, respiratory and gastrointestinal complications, and spirometry data were recorded over 3 years. RESULTS: A total of 97 patients were included. The most common type of atresia was III, and the most frequent syndrome, trisomy 21; 13.4 % of patients died in the neonatal period; 23.8 % were followed up by the Department of Pulmonology, and their respiratory complications included exacerbations (46.4 %), wheezing or asthma (36 %), and pneumonia (26.8 %). Gastroesophageal reflux was a risk factor for wheezing (OR: 5.31; p = 0.002), exacerbations (OR: 4.00; p=0.009), and pneumonia (OR: 3.24; p = 0.02). In the first spirometry (n=20), the pattern was normal in 65 %; restrictive in 30 %; and mixed in 5 %. In the second spirometry (n = 19), the pattern was normal in 42.1 %; restrictive in 31.6 %; obstructive in 15.8 %, and mixed in 10.5 %. In the third spirometry (n = 14), the pattern was normal in 50 %; restrictive in 21.4 %; obstructive in 14.3 %, and mixed in 14.3 %. CONCLUSIONS: In our sample of patients, a large proportion had respiratory and gastrointestinal comorbidities. Lung function worsened progressively.

Objetivo: Describir las características epidemiológicas, el seguimiento hospitalario y la evolución de los pacientes intervenidos por atresia esofágica y su repercusión en la función pulmonar. Población y métodos: Estudio retrospectivo, longitudinal y analítico. Se revisaron las historias clínicas de pacientes con atresia esofágica nacidos entre 1996 y 2017. Se registraron datos perinatales, tipo de atresia, malformaciones asociadas, complicaciones respiratorias y digestivas, y los datos espirométricos durante tres años. Resultados: Se incluyeron 97 pacientes. El tipo de atresia más frecuente fue el III y el síndrome más frecuente, la trisomía 21. El 13,4 % fallecieron en el período neonatal. El 23,8 % de los pacientes estuvo en seguimiento por Neumología y presentó como complicaciones respiratorias exacerbaciones (el 46,4 %), sibilancias o asma (el 36 %), neumonías (el 26,8 %). El reflujo gastroesofágico fue factor de riesgo de sibilancias (OR 5,31; p = 0,002), exacerbaciones (OR 4,00; p = 0,009) y neumonías (OR 3,24; p = 0,02). En la primera espirometría (n = 20), un 65 % presentaba patrón normal; un 30 %, restrictivo, y un 5 %, mixto. En la segunda espirometría (n = 19), un 42,1 % presentaba patrón normal; un 31,6 %, restrictivo; un 15,8 %, obstructivo, y un 10,5 %, mixto. En la tercera espirometría (n = 14), el 50 % presentaba un patrón espirométrico normal; el 21,4 %, restrictivo; el 14,3 %, obstructivo, y un 14,3 %, mixto. Conclusiones: En nuestra muestra de pacientes, una importante proporción presentó comorbilidades respiratorias y digestivas. La función pulmonar empeoró progresivamente.