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1.
Trials ; 25(1): 81, 2024 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-38267942

RESUMO

BACKGROUND: Despite therapeutic hypothermia (TH) and neonatal intensive care, 45-50% of children affected by moderate-to-severe neonatal hypoxic-ischemic encephalopathy (HIE) die or suffer from long-term neurodevelopmental impairment. Additional neuroprotective therapies are sought, besides TH, to further improve the outcome of affected infants. Allopurinol - a xanthine oxidase inhibitor - reduced the production of oxygen radicals and subsequent brain damage in pre-clinical and preliminary human studies of cerebral ischemia and reperfusion, if administered before or early after the insult. This ALBINO trial aims to evaluate the efficacy and safety of allopurinol administered immediately after birth to (near-)term infants with early signs of HIE. METHODS/DESIGN: The ALBINO trial is an investigator-initiated, randomized, placebo-controlled, double-blinded, multi-national parallel group comparison for superiority investigating the effect of allopurinol in (near-)term infants with neonatal HIE. Primary endpoint is long-term outcome determined as survival with neurodevelopmental impairment versus death versus non-impaired survival at 2 years. RESULTS: The primary analysis with three mutually exclusive responses (healthy, death, composite outcome for impairment) will be on the intention-to-treat (ITT) population by a generalized logits model according to Bishop, Fienberg, Holland (Bishop YF, Discrete Multivariate Analysis: Therory and Practice, 1975) and ."will be stratified for the two treatment groups. DISCUSSION: The statistical analysis for the ALBINO study was defined in detail in the study protocol and implemented in this statistical analysis plan published prior to any data analysis. This is in accordance with the Declaration of Helsinki and the International Conference on Harmonization Good Clinical Practice guidelines. TRIAL REGISTRATION: ClinicalTrials.gov NCT03162653. Registered on 22 May 2017.


Assuntos
Lesões Encefálicas , Hipotermia Induzida , Hipóxia-Isquemia Encefálica , Criança , Lactente , Recém-Nascido , Humanos , Hipóxia-Isquemia Encefálica/diagnóstico , Hipóxia-Isquemia Encefálica/terapia , Alopurinol/efeitos adversos , Grupos Controle , Hipotermia Induzida/efeitos adversos
2.
Eye (Lond) ; 38(8): 1444-1453, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38200320

RESUMO

BACKGROUND: There are no data on pharmacokinetics, pharmacodynamics, and immunogenicity of intravitreal aflibercept in preterm infants with retinopathy of prematurity (ROP). FIREFLEYE compared aflibercept 0.4 mg/eye and laser photocoagulation in infants with acute-phase ROP requiring treatment. METHODS: Infants (gestational age ≤32 weeks or birthweight ≤1500 g) with treatment-requiring ROP in ≥1 eye were randomized 2:1 to receive aflibercept 0.4 mg or laser photocoagulation at baseline in this 24-week, randomized, open-label, noninferiority, phase 3 study. Endpoints include concentrations of free and adjusted bound aflibercept in plasma, pharmacokinetic/pharmacodynamic exploration of systemic anti-vascular endothelial growth factor effects, and immunogenicity. RESULTS: Of 113 treated infants, 75 received aflibercept 0.4 mg per eye at baseline (mean chronological age: 10.4 weeks), mostly bilaterally (71 infants), and with 1 injection/eye (120/146 eyes). Concentrations of free aflibercept were highly variable, with maximum concentration at day 1, declining thereafter. Plasma concentrations of adjusted bound (pharmacologically inactive) aflibercept increased from day 1 to week 4, decreasing up to week 24. Six infants experienced treatment-emergent serious adverse events within 30 days of treatment; aflibercept concentrations were within the range observed in other infants. There was no pattern between free and adjusted bound aflibercept concentrations and blood pressure changes up to week 4. A low-titer (1:30), non-neutralizing, treatment-emergent anti-drug antibody response was reported in 1 infant, though was not clinically relevant. CONCLUSIONS: 24-week data suggest intravitreal aflibercept for treatment of acute-phase ROP is not associated with clinically relevant effects on blood pressure, further systemic adverse events, or immunogenicity. GOV IDENTIFIER: NCT04004208.


Assuntos
Inibidores da Angiogênese , Idade Gestacional , Recém-Nascido Prematuro , Injeções Intravítreas , Receptores de Fatores de Crescimento do Endotélio Vascular , Proteínas Recombinantes de Fusão , Retinopatia da Prematuridade , Fator A de Crescimento do Endotélio Vascular , Humanos , Receptores de Fatores de Crescimento do Endotélio Vascular/administração & dosagem , Retinopatia da Prematuridade/tratamento farmacológico , Proteínas Recombinantes de Fusão/administração & dosagem , Recém-Nascido , Masculino , Feminino , Inibidores da Angiogênese/administração & dosagem , Inibidores da Angiogênese/farmacocinética , Inibidores da Angiogênese/efeitos adversos , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores , Fotocoagulação a Laser/métodos
3.
Artigo em Inglês | MEDLINE | ID: mdl-35955128

RESUMO

Down syndrome (DS) is a common genetic disorder and is associated with an increased likelihood of many diseases, including defects of the heart, genitourinary system, gastrointestinal tract, and oncological diseases. The aim of this study was to analyze medical problems occurring in newborns with DS and to create a basic diagnostic and therapeutic algorithm intended primarily for neonatologists, pediatricians, family physicians, and physicians of other specialties caring for children with DS. Over a 5-year period, the medical records of 161 neonates with Down syndrome from four neonatology departments in Poznan, Poland, were examined. After applying exclusion criteria, 111 patients were analyzed. Data obtained from medical history included sex, week of gestation, birth weight, APGAR score, clinical symptoms, peripheral blood count with smear, and clinical features such as jaundice, hemorrhagic diathesis, ascites, hepato- or splenomegaly, pericardial or pleural effusion, respiratory failure, and other rare transient signs of abnormal myelopoiesis: fetal edema, hepatic fibrosis, renal failure, and rush. In the study group, 8% of children with Down syndrome were diagnosed with a heart and 1.8% with a genitourinary defect. Transient abnormal myelopoiesis syndrome (Transient abnormal myelopoiesis (TAM)) was found in 10% of newborns with DS. A blood count with blood smear, cardiology consultation with echocardiography, and an abdominal ultrasound should be performed in the first few days after birth in all newborns with Down syndrome. If this is not possible and the child's condition is stable, these tests can be performed within 2-3 months after birth.


Assuntos
Síndrome de Down , Reação Leucemoide , Criança , Atenção à Saúde , Síndrome de Down/complicações , Síndrome de Down/diagnóstico , Humanos , Recém-Nascido , Reação Leucemoide/complicações , Estudos Retrospectivos
4.
JAMA ; 328(4): 348-359, 2022 07 26.
Artigo em Inglês | MEDLINE | ID: mdl-35881122

RESUMO

Importance: Laser photocoagulation, which is the standard treatment for retinopathy of prematurity (ROP), can have adverse events. Studies of anti-vascular endothelial growth factor injections have suggested efficacy in the treatment of ROP, but few studies have directly compared them with laser treatments. Objective: To compare intravitreal aflibercept vs laser photocoagulation in infants with ROP requiring treatment. Design, Setting, and Participants: This noninferiority, phase 3, 24-week, randomized clinical trial was conducted in 27 countries (64 hospital sites) throughout Asia, Europe, and South America. Overall, 118 infants (gestational age ≤32 weeks at birth or birth weight ≤1500 g) with ROP severity (zone I stage 1+ [stage 1 plus increased disease activity], zone I stage 2+, zone I stage 3, zone I stage 3+, zone II stage 2+, or zone II stage 3+) requiring treatment or with aggressive posterior ROP in at least 1 eye were enrolled between September 25, 2019, and August 28, 2020 (the last visit occurred on February 12, 2021). Interventions: Infants were randomized 2:1 to receive a 0.4-mg dose of intravitreal aflibercept (n = 75) or laser photocoagulation (n = 43) at baseline. Additional treatment was allowed as prespecified. Main Outcomes and Measures: The primary outcome was the proportion of infants without active ROP and unfavorable structural outcomes 24 weeks after starting treatment (assessed by investigators). The requirement for rescue treatment was considered treatment failure. Intravitreal aflibercept was deemed noninferior if the lower limit of the 1-sided 95% bayesian credible interval for the treatment difference was greater than -5%. Results: Among 118 infants randomized, 113 were treated (mean gestational age, 26.3 [SD, 1.9] weeks; 53 [46.9%] were female; 16.8% had aggressive posterior ROP, 19.5% had zone I ROP, and 63.7% had zone II ROP) and 104 completed the study. Treatment (intravitreal aflibercept: n = 75; laser photocoagulation: n = 38) was mostly bilateral (92.9%), and 82.2% of eyes in the intravitreal aflibercept group received 1 injection per eye. Treatment success was 85.5% with intravitreal aflibercept vs 82.1% with laser photocoagulation (between-group difference, 3.4% [1-sided 95% credible interval, -8.0% to ∞]). Rescue treatment was required in 4.8% (95% CI, 1.9% to 9.6%) of eyes in the intravitreal aflibercept group vs 11.1% (95% CI, 4.9% to 20.7%) of eyes in the laser photocoagulation group. The serious adverse event rates were 13.3% (ocular) and 24.0% (systemic) in the intravitreal aflibercept group compared with 7.9% and 36.8%, respectively, in the laser photocoagulation group. Three deaths, which occurred 4 to 9 weeks after intravitreal aflibercept treatment, were considered unrelated to aflibercept by the investigators. Conclusions and Relevance: Among infants with ROP, intravitreal aflibercept compared with laser photocoagulation did not meet criteria for noninferiority with respect to the primary outcome of the proportion of infants achieving treatment success at week 24. Further data would be required for more definitive conclusions regarding the comparative effects of intravitreal aflibercept and laser photocoagulation in this population. Trial Registration: ClinicalTrials.gov Identifier: NCT04004208.


Assuntos
Inibidores da Angiogênese , Fotocoagulação a Laser , Receptores de Fatores de Crescimento do Endotélio Vascular , Proteínas Recombinantes de Fusão , Retinopatia da Prematuridade , Inibidores da Angiogênese/administração & dosagem , Inibidores da Angiogênese/efeitos adversos , Inibidores da Angiogênese/uso terapêutico , Bevacizumab/uso terapêutico , Feminino , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Injeções Intravítreas , Fotocoagulação a Laser/efeitos adversos , Fotocoagulação a Laser/métodos , Masculino , Receptores de Fatores de Crescimento do Endotélio Vascular/administração & dosagem , Receptores de Fatores de Crescimento do Endotélio Vascular/uso terapêutico , Proteínas Recombinantes de Fusão/administração & dosagem , Proteínas Recombinantes de Fusão/efeitos adversos , Proteínas Recombinantes de Fusão/uso terapêutico , Retinopatia da Prematuridade/tratamento farmacológico , Retinopatia da Prematuridade/cirurgia , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular
5.
Neonatology ; 119(4): 464-473, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35526524

RESUMO

INTRODUCTION: Bronchopulmonary dysplasia (BPD) represents a tremendous disease burden following preterm birth. The strong association between compromised gas exchange after birth and BPD demands particular focus on the perinatal period. The mode of delivery can impact on lung fluid clearance and microbial colonization, but its impact on BPD and potential trade-off effects between death and BPD are not established. METHODS: A total of 7,435 live births (24+0 to 31+6 weeks postmenstrual age) in 19 regions of 11 European countries were included. Principal outcomes were death and BPD at 36 weeks. We estimated unadjusted and adjusted associations with mode of delivery using multilevel logistic regression to account for clustering within units and regions. Sensitivity analyses examined effects, taking into consideration regional variations in C-section rates. RESULTS: Compared to vaginal delivery, delivery by C-section was not associated with the incidence of BPD (OR 0.92, 95% CI: 0.68-1.25) or the composite outcome of death or BPD (OR 0.94, 95% CI: 0.74-1.19) after adjustment for perinatal and neonatal risk factors in the total cohort and in pregnancies for whom a vaginal delivery could be considered. Sensitivity analyses among singletons, infants in cephalic presentation, and infants of ≥26+0 weeks of gestation did not alter the results for BPD, severe BPD, and death or BPD, even in regions with a high C-section rate. CONCLUSIONS: In our population-based cohort study, the mode of delivery was not associated with the incidence of BPD. The intention to reduce BPD does not justify a C-section in pregnancies where a vaginal delivery can be considered.


Assuntos
Displasia Broncopulmonar , Nascimento Prematuro , Displasia Broncopulmonar/epidemiologia , Estudos de Coortes , Feminino , Idade Gestacional , Humanos , Incidência , Lactente , Recém-Nascido , Recém-Nascido Prematuro , Gravidez
6.
Front Pediatr ; 9: 747203, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34869105

RESUMO

Background: As childbearing is postponed in developed countries, maternal age (MA) has increased over decades with an increasing number of pregnancies between age 35-39 and beyond. The aim of the study was to determine the influence of advanced (AMA) and very advanced maternal age (vAMA) on morbidity and mortality of very preterm (VPT) infants. Methods: This was a population-based cohort study including infants from the "Effective Perinatal Intensive Care in Europe" (EPICE) cohort. The EPICE database contains data of 10329 VPT infants of 8,928 mothers, including stillbirths and terminations of pregnancy. Births occurred in 19 regions in 11 European countries. The study included 7,607 live born infants without severe congenital anomalies. The principal exposure variable was MA at delivery. Infants were divided into three groups [reference 18-34 years, AMA 35-39 years and very(v) AMA ≥40 years]. Infant mortality was defined as in-hospital death before discharge home or into long-term pediatric care. The secondary outcome included a composite of mortality and/or any one of the following major neonatal morbidities: (1) moderate-to-severe bronchopulmonary dysplasia; (2) severe brain injury defined as intraventricular hemorrhage and/or cystic periventricular leukomalacia; (3) severe retinopathy of prematurity; and (4) severe necrotizing enterocolitis. Results: There was no significant difference between MA groups regarding the use of surfactant therapy, postnatal corticosteroids, rate of neonatal sepsis or PDA that needed pharmacological or surgical intervention. Infants of AMA/vAMA mothers required significantly less mechanical ventilation during NICU stay than infants born to non-AMA mothers, but there was no significant difference in length of mechanical ventilation and after stratification by gestational age group. Adverse neonatal outcomes in VPT infants born to AMA/vAMA mothers did not differ from infants born to mothers below the age of 35. Maternal age showed no influence on mortality in live-born VPT infants. Conclusion: Although AMA/vAMA mothers encountered greater pregnancy risk, the mortality and morbidity of VPT infants was independent of maternal age.

7.
Environ Res ; 197: 111090, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33798522

RESUMO

Several reports confirm the deleterious effects of tobacco smoking and exposure to second-hand smoke (SHS) resulting in changes in the composition of breast milk. The aim of our study was to compare the levels of selected essential, as well as, toxic metals found in colostrum (collected at day 1 ± 2 post-birth) and mature milk (1 month ± 7 days post-birth) of nonsmoking women (n = 52) compared to those found in women who smoke tobacco (n = 51) and women exposed to second-hand smoke during pregnancy and lactation (n = 47). Women's non-smoking or smoking status was determined by their responses to a questionnaire, including questions about others who may smoke in the home environment, and confirmed by measurement of cotinine in the blood serum by high performance liquid chromatography with diode array detector (HPLC-DAD). Inductively coupled plasma mass spectrometry (ICP-MS) and flame atomic absorption spectroscopy (F-AAS) techniques were used to determine the metal concentrations in colostrum and mature milk previously digested by a microwave mineralizer. We confirmed that exposure to tobacco smoke increases concentrations of heavy metals (cadmium and lead) in colostrum and mature milk. These increased concentrations of heavy metals may disturb the action of bioactive substances necessary for the optimal growth and development of newborns and infants. These findings support the need for increased concern and information to lactating women about preventing their exposure to cigarette smoking and SHS due to the adverse effects of tobacco smoke on breast milk with added risks to their infants.


Assuntos
Metais Pesados , Poluição por Fumaça de Tabaco , Cotinina/análise , Feminino , Humanos , Lactente , Recém-Nascido , Lactação , Metais Pesados/análise , Metais Pesados/toxicidade , Leite Humano/química , Gravidez , Poluição por Fumaça de Tabaco/efeitos adversos , Poluição por Fumaça de Tabaco/análise
8.
Biomed Hub ; 5(2): 453-459, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32884930

RESUMO

Congenital laryngeal stenosis is a rare and unusual anomaly that usually presents in the first minutes after delivery as severe life-threatening respiratory distress. It may exist as an isolated entity or in association with other congenital malformations, in particular cardiac anomalies. In this paper, we present the case of an infant with prenatal suspicion of tetralogy of Fallot. Immediately after delivery, the patient required intubation, which proved difficult. He was eventually diagnosed with laryngeal stenosis requiring laryngological treatment.

9.
Pediatr Res ; 88(1): 14-26, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32126571

RESUMO

Sepsis remains a leading cause of morbidity and mortality in the neonatal population, and at present, there is no unified definition of neonatal sepsis. Existing consensus sepsis definitions within paediatrics are not suited for use in the NICU and do not address sepsis in the premature population. Many neonatal research and surveillance networks have criteria for the definition of sepsis within their publications though these vary greatly and there is typically a heavy emphasis on microbiological culture. The concept of organ dysfunction as a diagnostic criterion for sepsis is rarely considered in neonatal literature, and it remains unclear how to most accurately screen neonates for organ dysfunction. Accurately defining and screening for sepsis is important for clinical management, health service design and future research. The progress made by the Sepsis-3 group provides a roadmap of how definitions and screening criteria may be developed. Similar initiatives in neonatology are likely to be more challenging and would need to account for the unique presentation of sepsis in term and premature neonates. The outputs of similar consensus work within neonatology should be twofold: a validated definition of neonatal sepsis and screening criteria to identify at-risk patients earlier in their clinical course. IMPACT: There is currently no consensus definition of neonatal sepsis and the definitions that are currently in use are varied.A consensus definition of neonatal sepsis would benefit clinicians, patients and researchers.Recent progress in adults with publication of Sepsis-3 provides guidance on how a consensus definition and screening criteria for sepsis could be produced in neonatology.We discuss common themes and potential shortcomings in sepsis definitions within neonatology.We highlight the need for a consensus definition of neonatal sepsis and the challenges that this task poses.


Assuntos
Sepse Neonatal/sangue , Sepse Neonatal/classificação , Neonatologia/normas , Biomarcadores/sangue , Consenso , Europa (Continente) , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Programas de Rastreamento , Sepse Neonatal/diagnóstico , Prognóstico , Resultado do Tratamento
10.
BMC Pediatr ; 19(1): 210, 2019 06 27.
Artigo em Inglês | MEDLINE | ID: mdl-31248390

RESUMO

BACKGROUND: Perinatal asphyxia and resulting hypoxic-ischemic encephalopathy is a major cause of death and long-term disability in term born neonates. Up to 20,000 infants each year are affected by HIE in Europe and even more in regions with lower level of perinatal care. The only established therapy to improve outcome in these infants is therapeutic hypothermia. Allopurinol is a xanthine oxidase inhibitor that reduces the production of oxygen radicals as superoxide, which contributes to secondary energy failure and apoptosis in neurons and glial cells after reperfusion of hypoxic brain tissue and may further improve outcome if administered in addition to therapeutic hypothermia. METHODS: This study on the effects of ALlopurinol in addition to hypothermia treatment for hypoxic-ischemic Brain Injury on Neurocognitive Outcome (ALBINO), is a European double-blinded randomized placebo-controlled parallel group multicenter trial (Phase III) to evaluate the effect of postnatal allopurinol administered in addition to standard of care (including therapeutic hypothermia if indicated) on the incidence of death and severe neurodevelopmental impairment at 24 months of age in newborns with perinatal hypoxic-ischemic insult and signs of potentially evolving encephalopathy. Allopurinol or placebo will be given in addition to therapeutic hypothermia (where indicated) to infants with a gestational age ≥ 36 weeks and a birth weight ≥ 2500 g, with severe perinatal asphyxia and potentially evolving encephalopathy. The primary endpoint of this study will be death or severe neurodevelopmental impairment versus survival without severe neurodevelopmental impairment at the age of two years. Effects on brain injury by magnetic resonance imaging and cerebral ultrasound, electric brain activity, concentrations of peroxidation products and S100B, will also be studied along with effects on heart function and pharmacokinetics of allopurinol after iv-infusion. DISCUSSION: This trial will provide data to assess the efficacy and safety of early postnatal allopurinol in term infants with evolving hypoxic-ischemic encephalopathy. If proven efficacious and safe, allopurinol could become part of a neuroprotective pharmacological treatment strategy in addition to therapeutic hypothermia in children with perinatal asphyxia. TRIAL REGISTRATION: NCT03162653, www.ClinicalTrials.gov , May 22, 2017.


Assuntos
Alopurinol/uso terapêutico , Antimetabólitos/uso terapêutico , Hipotermia Induzida/métodos , Hipóxia-Isquemia Encefálica/terapia , Transtornos do Neurodesenvolvimento/etiologia , Ensaios Clínicos Controlados Aleatórios como Assunto , Ensaios Clínicos Fase III como Assunto , Terapia Combinada/métodos , Método Duplo-Cego , Idade Gestacional , Humanos , Hipóxia-Isquemia Encefálica/mortalidade , Lactente , Recém-Nascido , Estudos Multicêntricos como Assunto , Transtornos do Neurodesenvolvimento/epidemiologia
11.
Arch Dis Child Fetal Neonatal Ed ; 104(1): F36-F45, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29353260

RESUMO

OBJECTIVE: To investigate the variation in severe neonatal morbidity among very preterm (VPT) infants across European regions and whether morbidity rates are higher in regions with low compared with high mortality rates. DESIGN: Area-based cohort study of all births before 32 weeks of gestational age. SETTING: 16 regions in 11 European countries in 2011/2012. PATIENTS: Survivors to discharge from neonatal care (n=6422). MAIN OUTCOME MEASURES: Severe neonatal morbidity was defined as intraventricular haemorrhage grades III and IV, cystic periventricular leukomalacia, surgical necrotizing enterocolitis and retinopathy of prematurity grades ≥3. A secondary outcome included severe bronchopulmonary dysplasia (BPD), data available in 14 regions. Common definitions for neonatal morbidities were established before data abstraction from medical records. Regional severe neonatal morbidity rates were correlated with regional in-hospital mortality rates for live births after adjustment on maternal and neonatal characteristics. RESULTS: 10.6% of survivors had a severe neonatal morbidity without severe BPD (regional range 6.4%-23.5%) and 13.8% including severe BPD (regional range 10.0%-23.5%). Adjusted inhospital mortality was 13.7% (regional range 8.4%-18.8%). Differences between regions remained significant after consideration of maternal and neonatal characteristics (P<0.001) and severe neonatal morbidity rates were not correlated with mortality rates (P=0.50). CONCLUSION: Severe neonatal morbidity rates for VPT survivors varied widely across European regions and were independent of mortality rates.


Assuntos
Mortalidade Infantil , Lactente Extremamente Prematuro , Doenças do Prematuro/mortalidade , Estudos de Coortes , Europa (Continente)/epidemiologia , Feminino , Idade Gestacional , Mortalidade Hospitalar , Humanos , Lactente , Recém-Nascido , Masculino , Morbidade , Gravidez , Complicações na Gravidez/epidemiologia , Estudos Prospectivos , História Reprodutiva , Índice de Gravidade de Doença
12.
Environ Res ; 170: 110-121, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30579160

RESUMO

BACKGROUND: Many women who smoke tobacco continue to do so during lactation, and many non-smoking women are exposed to second-hand tobacco smoke (SHS) during the period that she wishes to breastfeed. There are reports documenting the adverse effects of maternal smoking during lactation on their infant's health; however, the pathophysiological mechanisms underlying these effects are incompletely understood. OBJECTIVES: Our study purpose was to examine the influence of tobacco smoke on biochemical markers reflecting the intensity of oxidative stress using concentration of total protein (TP), trolox equivalent antioxidant capacity (TEAC), S-nitrosothiols (RSNO), nitric oxide (NO), thiobarbituric acid reactive substances (TBARS), reduced glutathione (GSH), glutathione S-transferase (GST), glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase (CAT) in the plasma, colostrum, and mature milk of women who smoke, those only exposed to SHS, and non-smokers. METHODS: Questionnaire data on the tobacco smoking status were verified based on the determination of cotinine by high performance liquid chromatography with diode array detector (HPLC-DAD). Relevant markers of oxidative stress and biochemical parameters were determined using spectrophotometric methods. RESULTS: We found that tobacco smoking during lactation increases oxidative stress in the mother's plasma, colostrum, and mature milk, and lesser so in those exposed to SHS. Tobacco smoke significantly increase TBARS and decrease TEAC in colostrum and mature milk. In response to ROS generated by tobacco smoke increase the activity of antioxidant enzymes (SOD, GST, GPx and CAT), p < 0.05. DISCUSSION: Such exposure to tobacco smoke influences the antioxidant barrier of human colostrum and mature milk that can adversely affect their infant's health. Greater public health awareness of the adverse effects of tobacco smoking during lactation on breast milk quality and its protective effects is urgently needed.


Assuntos
Antioxidantes/metabolismo , Exposição Materna/estatística & dados numéricos , Leite Humano/metabolismo , Oxidantes/metabolismo , Poluição por Fumaça de Tabaco/estatística & dados numéricos , Feminino , Glutationa Peroxidase , Mãos , Humanos , Lactente , Estresse Oxidativo , Superóxido Dismutase , Nicotiana
13.
JAMA Pediatr ; 171(7): 678-686, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28505223

RESUMO

Importance: Administration-to-birth intervals of antenatal corticosteroids (ANS) vary. The significance of this variation is unclear. Specifically, to our knowledge, the shortest effective administration-to-birth interval is unknown. Objective: To explore the associations between ANS administration-to-birth interval and survival and morbidity among very preterm infants. Design, Setting, and Participants: The Effective Perinatal Intensive Care in Europe (EPICE) study, a population-based prospective cohort study, gathered data from 19 regions in 11 European countries in 2011 and 2012 on 4594 singleton infants with gestational ages between 24 and 31 weeks, without severe anomalies and unexposed to repeated courses of ANS. Data were analyzed November 2016. Exposure: Time from first injection of ANS to delivery in hours and days. Main Outcomes and Measures: Three outcomes were studied: in-hospital mortality; a composite of mortality or severe neonatal morbidity, defined as an intraventricular hemorrhage grade of 3 or greater, cystic periventricular leukomalacia, surgical necrotizing enterocolitis, or stage 3 or greater retinopathy of prematurity; and severe neonatal brain injury, defined as an intraventricular hemorrhage grade of 3 or greater or cystic periventricular leukomalacia. Results: Of the 4594 infants included in the cohort, 2496 infants (54.3%) were boys, and the mean (SD) gestational age was 28.5 (2.2) weeks and mean (SD) birth weight was 1213 (400) g. Mortality for the 662 infants (14.4%) unexposed to ANS was 20.6% (136 of 661). Administration of ANS was associated with an immediate and rapid decline in mortality, reaching a plateau with more than 50% risk reduction after an administration-to-birth interval of 18 to 36 hours. A similar pattern for timing was seen for the composite mortality or morbidity outcome, whereas a significant risk reduction of severe neonatal brain injury was associated with longer administration-to-birth intervals (greater than 48 hours). For all outcomes, the risk reduction associated with ANS was transient, with increasing mortality and risk for severe neonatal brain injury associated with administration-to-birth intervals exceeding 1 week. Under the assumption of a causal relationship between timing of ANS and mortality, a simulation of ANS administered 3 hours before delivery to infants who did not receive ANS showed that their estimated decline in mortality would be 26%. Conclusions and Relevance: Antenatal corticosteroids may be effective even if given only hours before delivery. Therefore, the infants of pregnant women at risk of imminent preterm delivery may benefit from its use.


Assuntos
Intervalo entre Nascimentos/estatística & dados numéricos , Glucocorticoides/administração & dosagem , Mortalidade Hospitalar , Mortalidade Infantil , Cuidado Pré-Natal/métodos , Estudos de Coortes , Europa (Continente) , Feminino , Idade Gestacional , Glucocorticoides/efeitos adversos , Humanos , Lactente , Lactente Extremamente Prematuro , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/mortalidade , Masculino , Gravidez , Estudos Prospectivos
14.
PLoS One ; 12(1): e0170234, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28114369

RESUMO

BACKGROUND: Postnatal corticosteroids (PNC) were widely used to treat and prevent bronchopulmonary dysplasia in preterm infants until studies showed increased risk of cerebral palsy and neurodevelopmental impairment. We aimed to describe PNC use in Europe and evaluate the determinants of their use, including neonatal characteristics and adherence to evidence-based practices in neonatal intensive care units (NICUs). METHODS: 3917/4096 (95,6%) infants born between 24 and 29 weeks gestational age in 19 regions of 11 European countries of the EPICE cohort we included. We examined neonatal characteristics associated with PNC use. The cohort was divided by tertiles of probability of PNC use determined by logistic regression analysis. We also evaluated the impact of the neonatal unit's reported adherence to European recommendations for respiratory management and a stated policy of reduced PNC use. RESULTS: PNC were prescribed for 545/3917 (13.9%) infants (regional range 3.1-49.4%) and for 29.7% of infants in the highest risk tertile (regional range 5.4-72.4%). After adjustment, independent predictors of PNC use were a low gestational age, small for gestational age, male sex, mechanical ventilation, use of non-steroidal anti-inflammatory drugs to treat persistent ductus arteriosus and region. A stated NICU policy reduced PNC use (odds ratio 0.29 [95% CI 0.17; 0.50]). CONCLUSION: PNC are frequently used in Europe, but with wide regional variation that was unexplained by neonatal characteristics. Even for infants at highest risk for PNC use, some regions only rarely prescribed PNC. A stated policy of reduced PNC use was associated with observed practice and is recommended.


Assuntos
Corticosteroides/administração & dosagem , Recém-Nascido Prematuro , Unidades de Terapia Intensiva Neonatal , Estudos de Coortes , Europa (Continente) , Idade Gestacional , Humanos , Recém-Nascido
15.
Environ Res ; 151: 321-338, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27522570

RESUMO

Approximately 10% of women report smoking during pregnancy. The number of breastfeeding women who relapse back to smoking is even greater. Smoking may cause adverse changes to the milk's composition by not only reducing its protective properties, but also by affecting the infant's health. The pathophysiological mechanisms underlying these adverse effects are not entirely known. This article is a review of previous reports about the effects of smoking on the lactation process, breast milk composition and infant development. A systematic search for English language articles published until 2015 was made, using a MEDLINE data. The key search terms were "smoking and breastfeeding", "smoking and lactation", "smoking and milk composition", "nicotine and breast milk". Studies have shown that nicotine levels in breast milk of women who smoke are three times higher than those in the plasma levels. Breast milk volume is reduced and the duration of lactation period is shorter. Smoking causes adverse changes to the milk's composition by not only reducing its protective properties, but also affecting infants' response to breastfeeding and to breast milk.


Assuntos
Aleitamento Materno , Desenvolvimento Infantil , Lactação , Leite Humano/química , Fumar/efeitos adversos , Cotinina/análise , Feminino , Humanos , Lactente , Nicotina/análise
16.
Pediatr Pulmonol ; 49(5): 482-9, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24039229

RESUMO

BACKGROUND: Surfactant therapy may be beneficial in acute lung injury (ALI). In spontaneously breathing newborn pigs with ALI supported with continuous positive airway pressure (CPAP), we evaluated the hypothesis that aerosolized KL4 surfactant (AERO KL4 S) would provide a similar therapeutic effect as intratracheal KL4 surfactant (ETT KL4 S) when compared to controls. METHODS: We randomized pigs with HCl-induced ALI to: (1) 175 mg/kg KL4 surfactant via endotracheal tube (ETT); (2) AERO KL4 S (22.5 mg/min phospholipid) for 60 min via continuous positive airway pressure (CPAP); or (3) sham procedure on CPAP. We obtained physiologic data and arterial blood gases throughout the 3-hr study. At study end, lungs were excised for analysis of interleukin-8 (IL-8), myeloperoxidase (MPO) levels and histomorphometric data. RESULTS: Pigs treated with ETT KL4 S and AERO KL4 S had improved survival and sustained pO2 compared to controls. The AERO KL4 S group had higher pH compared to controls. Lung IL-8 levels were lower in the AERO KL4 S group compared to controls. Histomorphometric analysis showed less hemorrhage in the ETT and AERO KL4 S groups compared to controls. The AERO KL4 S group had more open lung units per fixed-field than the ETT KL4 S or controls. CONCLUSIONS: AERO KL4 S produced similar improvements in survival, physiology, inflammatory markers, and morphology as ETT KL4 S in an ALI model.


Assuntos
Lesão Pulmonar Aguda/metabolismo , Aerossóis/farmacologia , Pulmão/efeitos dos fármacos , Peptídeos/farmacologia , Troca Gasosa Pulmonar/efeitos dos fármacos , Lesão Pulmonar Aguda/induzido quimicamente , Lesão Pulmonar Aguda/patologia , Administração por Inalação , Animais , Animais Recém-Nascidos , Pressão Positiva Contínua nas Vias Aéreas , Modelos Animais de Doenças , Ácido Clorídrico/toxicidade , Peptídeos e Proteínas de Sinalização Intercelular , Interleucina-8/efeitos dos fármacos , Interleucina-8/metabolismo , Pulmão/metabolismo , Pulmão/patologia , Peroxidase/efeitos dos fármacos , Peroxidase/metabolismo , Distribuição Aleatória , Taxa de Sobrevida , Suínos
17.
Przegl Lek ; 70(10): 779-83, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24501794

RESUMO

There are several life style choices which may impact fertility and thus national birth rate. Epidemiological cohort studies indicates that modification of life style habits, among them nicotine consumption can influence reproductive health. Influence of tobacco smoking on reproductive health has to be analyzed within the context of the influence of body mass index, caffeine and alcohol consumption, exercise, maternal and paternal age, and stress. Approximately 27% Polish women and 23% Americans smoke cigarettes during their reproductive years. Cohort studies directly showed the relationship between nicotine consumption and decrease in fertility among smoking women. Besides there is evidence that smoking leads to higher rate of congenital heart defects, limbs abnormalities, central nervous malformations among infants born to smoking mothers. Finally, the relationship between smoking and decreased fertility should be of great concern since Polish fertility rate has dropped from 1989 till 2007 year from 2,1 to 1,27 respectively. Programs focused on improvement in national birth rate should focus also on decrease smoking rates among women.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Fertilidade/efeitos dos fármacos , Cardiopatias Congênitas/epidemiologia , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Saúde Reprodutiva/estatística & dados numéricos , Fumar/epidemiologia , Poluição por Fumaça de Tabaco/efeitos adversos , Adolescente , Adulto , Cafeína/efeitos adversos , Causalidade , Estudos de Coortes , Comorbidade , Feminino , Humanos , Recém-Nascido , Estilo de Vida , Nicotina/toxicidade , Polônia/epidemiologia , Gravidez , Adulto Jovem
18.
Przegl Lek ; 69(10): 717-20, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23421018

RESUMO

Smoking during pregnancy is associated with various adverse effects on pregnancy and fetal development, carries a lot of serious complications such as spontaneous abortion, placental abruption, and reduced birth weight of the newborn. Children of smoking mothers have an increased risk of premature birth, low birth weight, sudden infant death syndrome and respiratory diseases during infancy. Smoking also causes long-term risk of maternal health problems such as: heart disease, cancer, emphysema, chronic obstructive pulmonary disease and higher mortality rate. Because women are more likely to quit smoking during pregnancy than at any other time, there are attempts to increase motivation and help them to stop smoking at the procreative phase of their life. The article describes interventions that are carried out in Loma Linda, where the educational program "When You Smoke Your Baby Smokes" reminds parents about the health effects of smoking during pregnancy and harmful impact on child's health caused by second-hand smoke. Another threat to health and environment of our children, is the nicotine coming from indirect exposure to tobacco smoke. Residual nicotine that persists in high concentrations on the interior surfaces, including clothing, is forming in the reaction of nitric acid carcinogenic compounds of specific nitrosamines. In addition, ozone and related atmospheric oxidants react with nicotine smoke or smoke coming from the second-hand smoke, giving the smallest particles with high risk of asthma. Efforts towards reducing exposure to tobacco smoke coming from the passive and indirect smoking should be placed at a high priority throughout the European Union.


Assuntos
Exposição Ambiental/prevenção & controle , Nicotina/efeitos adversos , Efeitos Tardios da Exposição Pré-Natal/etiologia , Poluição por Fumaça de Tabaco/efeitos adversos , Poluição por Fumaça de Tabaco/prevenção & controle , Aborto Espontâneo/induzido quimicamente , Asma/etiologia , Exposição Ambiental/efeitos adversos , Exposição Ambiental/análise , União Europeia , Feminino , Desenvolvimento Fetal , Promoção da Saúde , Humanos , Bem-Estar do Lactente , Recém-Nascido , Nicotina/análise , Gravidez , Resultado da Gravidez , Poluição por Fumaça de Tabaco/análise
19.
J Aerosol Med Pulm Drug Deliv ; 23(5): 303-9, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20455772

RESUMO

BACKGROUND: Nasal continuous positive airway pressure (nCPAP) is an accepted mode of respiratory support for preterm infants with respiratory insufficiency. To avoid potential sequelae of endotracheal (ET) intubation and mechanical ventilation, prophylactic aerosolization of surfactant delivered via nCPAP has been attempted with limited success. METHODS: To determine the feasibility and safety of prophylactic aerosolization of a peptide-containing synthetic surfactant, Aerosurf® (lucinactant for inhalation) was delivered by nCPAP to preterm infants at risk for respiratory distress syndrome (RDS). Neonates were enrolled into treatment group 1 (Aerosurf retreatment separated by at least 3 h) or treatment group 2 (Aerosurf retreatment separated by at least 1 h). A vibrating membrane nebulizer Aeroneb Pro® was used to aerosolize 20 mg/mL Aerosurf. All neonates received the initial 3-h treatment, and three retreatments were permitted within 48 h based on clinical response. RESULTS: Seventeen infants were enrolled. Aerosurf was well tolerated, with transient desaturations observed during dosing without bradycardia or hypotension. Variability in output rates of the Aeroneb Pro was observed leading to different average dispensed drug volumes per treatment per patient. All infants survived; 29.4% required subsequent ET surfactant replacement therapy, 23.5% were diagnosed with RDS at 24 h, and 11.8% with bronchopulmonary dysplasia (BPD) at 28 days of life. Mean FiO2 was 0.4 at baseline, and 0.32 at 4 h posttreatment. CONCLUSIONS: Aerosurf can be safely administered via nCPAP in preterm infants at risk for RDS and may provide an alternative to surfactant administration via an ET tube. Further studies are required to evaluate this delivery approach.


Assuntos
Pressão Positiva Contínua nas Vias Aéreas/métodos , Álcoois Graxos/administração & dosagem , Fosfatidilgliceróis/administração & dosagem , Proteínas/administração & dosagem , Síndrome do Desconforto Respiratório do Recém-Nascido/prevenção & controle , Aerossóis , Displasia Broncopulmonar/epidemiologia , Terapia Combinada , Combinação de Medicamentos , Álcoois Graxos/efeitos adversos , Álcoois Graxos/uso terapêutico , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Oxigênio/metabolismo , Fosfatidilgliceróis/efeitos adversos , Fosfatidilgliceróis/uso terapêutico , Projetos Piloto , Proteínas/efeitos adversos , Proteínas/uso terapêutico , Fatores de Tempo
20.
Przegl Lek ; 67(10): 1045-7, 2010.
Artigo em Polonês | MEDLINE | ID: mdl-21360958

RESUMO

Environmental tobacco smoke (ETS) during pregnancy as well as during postnatal period has been shown to be potentially responsible for variety of diseases, including premature delivery, upper and lower respiratory illnesses, asthma or behavioral disturbances (colic, attention deficient disorders). It is estimated that up to 70 to 80% of children are exposed to ETS, and most often they are forced to inhale air contaminated by tobacco smoke in public places such as kindergartens, schools, play grounds, but also cars and in other forms of transportation. Nevertheless one of the most significant sources of nicotine and other toxicants of tobacco smoke is breast milk from the smoking mother, or even among mothers exposed to ETS. Lack of individual educational approach focused on prevention of ETS exposure by infants lead our academic collaboration and establishment of "The QUIT for kids" program.


Assuntos
Exposição Ambiental/prevenção & controle , Promoção da Saúde/organização & administração , Doenças do Recém-Nascido/prevenção & controle , Prevenção do Hábito de Fumar , Poluição por Fumaça de Tabaco/prevenção & controle , Exposição Ambiental/efeitos adversos , Exposição Ambiental/análise , Feminino , Humanos , Lactente , Recém-Nascido , Doenças do Recém-Nascido/etiologia , Leite Humano/química , Polônia , Gravidez , Efeitos Tardios da Exposição Pré-Natal/prevenção & controle , Fumar/efeitos adversos , Poluição por Fumaça de Tabaco/efeitos adversos , Poluição por Fumaça de Tabaco/análise
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