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1.
Front Pediatr ; 8: 597699, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33194929

RESUMEN

Background: In the current SARS-Coronavirus-2 (SARS-CoV-2) pandemic little is known about SARS-CoV-2 in human milk. It is important to discover if breast milk is a vehicle of infection. Objective: Our aim was to look for the presence of SARS-CoV-2 RNA in the milk of a group of SARS-CoV-2 positive mothers from North-West Italy. Methods: This is a prospective collaborative observational study where samples of human milk from 14 breastfeeding mothers positive for SARS-CoV-2 were collected. A search of viral RNA in breast milk samples was performed by RT-PCR (Real-Time reverse-transcriptase-Polymerase-Chain-Reaction) methodology tested for human milk. All the newborns underwent a clinical follow up during the first month of life or until the finding of two sequential negative swabs. Results: In 13 cases the search for SARS-CoV-2 RNA in milk samples resulted negative and in one case it was positive. Thirteen of the 14 newborns were exclusively breastfed and closely monitored in the first month of life. Clinical outcome was uneventful. Four newborns tested positive for SARS-CoV-2 and were all detected in the first 48 h of life, after the onset of maternal symptoms. Also the clinical course of these 4 infants, including the one who received mother's milk positive for SARS-CoV-2, was uneventful, and all of them became SARS-CoV-2 negative within 6 weeks of life. Conclusion: Our study supports the view that SARS-CoV-2 positive mothers do not expose their newborns to an additional risk of infection by breastfeeding.

2.
Am J Perinatol ; 36(S 02): S120-S125, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31238372

RESUMEN

BACKGROUND: Lactoferrin is the major antimicrobial protein in human milk. In our randomized controlled trial (RCT) of bovine lactoferrin (BLF) supplementation in preterm neonates, BLF reduced late-onset sepsis (LOS). Mother's own milk (MM) contains higher concentrations of lactoferrin than donor milk or formula, but whether BLF is more effective in infants who receive formula or donor milk is uncertain. AIM: To evaluate the incidence of LOS in preterm infants fed MM and in those fed formula and/or donor milk. STUDY DESIGN: This is a (A) post hoc subgroup analysis, in our RCT of BLF, of its effects in preterm infants fed MM, with or without formula, versus those fed formula and/or donor milk (no-MM) and (B) post hoc meta-analysis, in our RCT of BLF and in the ELFIN (Enteral Lactoferrin in Neonates) RCT, of the effect of BLF in subgroups not exclusively fed MM. RESULTS: (A) Of 472 infants in our RCT, 168 were randomized to placebo and 304 were randomized to BLF. Among MM infants, LOS occurred in 22/133 (16.5%) infants randomized to placebo and in 14/250 (5.6%) randomized to BLF (relative risk or risk ratio (RR): 0.34; relative risk reduction (RRR): 0.66; 95% confidence interval (95% CI) for RR: 0.18-0.64; p < 0.0008). Among no-MM infants, LOS occurred in 7/35 (20.0%) randomized to placebo and in 2/54 (3.7%) randomized to BLF (RR: 0.19; RRR: 0.81; 95% CI for RR: 0.16-0.96; p = 0.026). In multivariable logistic regression analysis, there was no interaction between BLF treatment effect and type of feeding (p = 0.628). (B) In 1,891 infants not exclusively fed MM in our RCT of BLF and in the ELFIN RCT, BLF reduced the RR of LOS by 18% (RR: 0.82; 95% CI: 0.71-0.96; p = 0.01). CONCLUSION: Adequately powered studies should address the hypothesis that BLF is more effective in infants fed formula or donor milk than those fed MM. Such studies should evaluate whether a specific threshold of total lactoferrin intake can be identified to protect such patients from LOS.


Asunto(s)
Antiinfecciosos/uso terapéutico , Fórmulas Infantiles/química , Enfermedades del Prematuro/prevención & control , Recien Nacido Prematuro , Lactoferrina/uso terapéutico , Leche Humana/química , Sepsis/prevención & control , Animales , Bovinos , Humanos , Recién Nacido , Modelos Logísticos , Ensayos Clínicos Controlados Aleatorios como Asunto
3.
J Pediatr ; 193: 62-67.e1, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-29198543

RESUMEN

OBJECTIVE: To investigate whether exposure to inhibitors of gastric acidity, such as H2 blockers or proton pump inhibitors, can independently increase the risk of infections in very low birth weight (VLBW) preterm infants in the neonatal intensive care unit. STUDY DESIGN: This is a secondary analysis of prospectively collected data from a multicenter, randomized controlled trial of bovine lactoferrin (BLF) supplementation (with or without the probiotic Lactobacillus rhamnosus GG) vs placebo in prevention of late-onset sepsis (LOS) and necrotizing enterocolitis (NEC) in preterm infants. Inhibitors of gastric acidity were used at the recommended dosages/schedules based on the clinical judgment of attending physicians. The distribution of days of inhibitors of gastric acidity exposure between infants with and without LOS/NEC was assessed. The mutually adjusted effects of birth weight, gestational age, duration of inhibitors of gastric acidity treatment, and exposure to BLF were controlled through multivariable logistic regression. Interaction between inhibitors of gastric acidity and BLF was tested; the effects of any day of inhibitors of gastric acidity exposure were then computed for BLF-treated vs -untreated infants. RESULTS: Two hundred thirty-five of 743 infants underwent treatment with inhibitors of gastric acidity, and 86 LOS episodes occurred. After multivariate analysis, exposure to inhibitors of gastric acidity remained significantly and independently associated with LOS (OR, 1.03; 95% CI, 1.008-1.067; P = .01); each day of inhibitors of gastric acidity exposure conferred an additional 3.7% odds of developing LOS. Risk was significant for Gram-negative (P < .001) and fungal (P = .001) pathogens, but not for Gram-positive pathogens (P = .97). On the test for interaction, 1 additional day of exposure to inhibitors of gastric acidity conferred an additional 7.7% risk for LOS (P = .003) in BLF-untreated infants, compared with 1.2% (P = .58) in BLF-treated infants. CONCLUSION: Exposure to inhibitors of gastric acidity is significantly associated with the occurrence of LOS in preterm VLBW infants. Concomitant administration of BLF counteracts this selective disadvantage. TRIAL REGISTRATION: isrctn.org: ISRCTN53107700.


Asunto(s)
Enterocolitis Necrotizante/prevención & control , Antagonistas de los Receptores H2 de la Histamina/efectos adversos , Lactoferrina/administración & dosificación , Probióticos/administración & dosificación , Inhibidores de la Bomba de Protones/efectos adversos , Sepsis/prevención & control , Administración Oral , Suplementos Dietéticos , Enterocolitis Necrotizante/epidemiología , Ácido Gástrico , Humanos , Recién Nacido , Recien Nacido Prematuro , Recién Nacido de muy Bajo Peso , Unidades de Cuidado Intensivo Neonatal , Italia , Lacticaseibacillus rhamnosus , Nueva Zelanda , Factores de Riesgo , Sepsis/epidemiología
4.
APSP J Case Rep ; 6(2): 15, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26064805

RESUMEN

Pyogenic granuloma is a benign vascular tumor that may affect the gastrointestinal tract. This report describes a rare case of sigmoid-colon pyogenic granuloma in a 4-month-old boy causing intussusception. Resection and anastomosis were curative. The mother had history of high dose of progesterone exposure during initial weeks of conception for vaginal bleeding. This may point towards etiology of the lesion.

5.
BMC Pediatr ; 15: 63, 2015 May 21.
Artículo en Inglés | MEDLINE | ID: mdl-25993984

RESUMEN

BACKGROUND: Clinical assessment is the gold standard for diagnosis of bronchiolitis. To date, only one study found LUS (Lung Ultrasound) to be a valuable tool in the diagnosis of bronchiolitis. Aim of this study is to evaluate the accuracy of lung ultrasonography in the diagnosis and management of bronchiolitis in infants. METHODS: This was an observational cohort study of infants admitted to our Pediatric Unit with suspected bronchiolitis. A physical examination and lung ultrasound scans were performed on each patient. Diagnosis and grading of bronchiolitis was assessed according to a clinical and a ultrasound score. An exploratory analysis was used to assess correspondence between the lung ultrasound findings and the clinical evaluation and to evaluate the inter-observer concordance between the two different sonographs. RESULTS: One hundred six infants were studied (average age 71 days). According to our clinical score, 74 infants had mild bronchiolitis, 30 had moderate bronchiolitis and two had severe bronchiolitis. 25 infants composed the control group. Agreement between the clinical and sonographic diagnosis was good (90.6%) with a statistically significant inter-observer ultrasound diagnosis concordance (89.6%). Lung ultrasound permits the identification of infants who are in need of supplementary oxygen with a specificity of 98.7%, a sensitivity of 96.6%, a positive predictive value of 96.6% and a negative predictive value of 98.7%. An aberrant ultrasound lung pattern in posterior chest area was collected in 86% of infants with bronchiolitis. In all patients clinical improvement at discharge was associated with disappearance of the previous LUS findings. Subpleural lung consolidation of 1 cm or more in the posterior area scan and a quantitative classification of interstitial syndrome based on intercostal spaces involved bilaterally, good correlate with bronchiolitis severity and oxygen use. CONCLUSIONS: The lung ultrasound findings strictly correlate with the clinical evaluations in infants with bronchiolitis and permit the identification of infants who are in need of supplementary oxygen with high specificity. Scans of the posterior area are more indicative in ascertaining the severity of bronchiolitis. TRIAL REGISTRATION: Clinical Trial Registration NCT01993797.


Asunto(s)
Bronquiolitis/diagnóstico por imagen , Pulmón/diagnóstico por imagen , Bronquiolitis/terapia , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Terapia por Inhalación de Oxígeno , Índice de Severidad de la Enfermedad , Ultrasonografía
6.
Early Hum Dev ; 90 Suppl 2: S25-7, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25220122

RESUMEN

The diagnosis of congenital CMV is usually guided by a number of specific symptoms and findings. Unusual presentations may occur and diagnosis is challenging due to uncommon or rare features. Here we report the case of two preterm, extremely low birthweight, 28-week gestational age old twin neonates with CMV infection associated with severe lung involvement and persistent pulmonary hypertension of the newborn (PPHN). They were born to a HIV-positive mother, hence they underwent treatment with zidovudine since birth. Both infants featured severe refractory hypoxemia, requiring high-frequency ventilation, inhaled nitric oxide and inotropic support, with full recovery after 2 months. Treatment with ganciclovir was not feasible due the concomitant treatment with zidovudine and the risk of severe, fatal toxicity. Therefore administration of intravenous hyperimmune anti-CMV immunoglobulin therapy was initiated. Severe lung involvement at birth and subsequent pulmonary hypertension are rarely described in preterm infants as early manifestations of CMV congenital disease. In the two twin siblings here described, the extreme prematurity and the treatment with zidovudine likely worsened immunosuppression and ultimately required a complex management of the CMV-associated lung involvement.


Asunto(s)
Infecciones por Citomegalovirus/diagnóstico , Hipertensión Pulmonar/diagnóstico , Adulto , Infecciones por Citomegalovirus/complicaciones , Infecciones por Citomegalovirus/congénito , Femenino , Humanos , Hipertensión Pulmonar/complicaciones , Recién Nacido , Recien Nacido Prematuro , Gemelos
7.
Early Hum Dev ; 90 Suppl 2: S29-33, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-25220123

RESUMEN

BACKGROUND: Retinopathy of prematurity (ROP) is a multifactorial disease with evidence of many associated risk factors. Erythropoietin has been reported to be associated with this disorder in a murine model, as well as in humans in some single-center reports. We reviewed the data from two large tertiary NICUs in Italy to test the hypothesis that the use of erythropoietin may be associated with the development of the most severe stages of ROP in extremely low birth weight (ELBW) neonates. DESIGN/METHODS: Retrospective study by review of patient charts and eye examination index cards on infants with birth weight <1000g admitted to two large tertiary NICUs in Northern Italy (Sant'Anna Hospital NICU in Torino, and Ca' Foncello Hospital Neonatology in Treviso) in the years 2005 to 2007. Standard protocol of administration of EPO in the two NICUs consisted of 250 UI/kg three times a week for 6-week courses (4-week in 1001-1500g infants). Univariate analysis was performed to assess whether the use of EPO was associated with severe (threshold) ROP. A control, multivariate statistical analysis was performed by entering into a logistic regression model a number of neonatal and perinatal variables that - in univariate analysis - had been associated with threshold ROP. RESULTS: During the study period, 211 ELBW infants were born at the two facilities and survived till discharge. Complete data were obtained for 197 of them. Threshold retinopathy of prematurity occurred in 26.9% (29 of 108) of ELBW infants who received erythropoietin therapy, as compared with 13.5% (12 of 89) of those who did not receive erythropoietin (OR 2.35; 95% CI 1.121-4.949; p=0.02 in univariate analysis, and p=0.04 at multivariate logistic regression after controlling for the following variables: birth weight, gestational age, days on supplemental oxygen, systemic fungal infection, vaginal delivery). Use of erythropoietin was not significantly associated with other major sequelae of prematurity (intraventricular hemorrhage, bronchopulmonary dysplasia, necrotizing enterocolitis). © 2014 Elsevier Ireland Ltd. All rights reserved. CONCLUSIONS: Use of erythropoietin is an additional, independent predictor of threshold ROP in ELBW neonates. Larger prospective, population-based studies should further clarify the extent of this association.


Asunto(s)
Eritropoyetina/efectos adversos , Retinopatía de la Prematuridad/etiología , Estudios de Casos y Controles , Estudios de Cohortes , Femenino , Humanos , Recien Nacido con Peso al Nacer Extremadamente Bajo , Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Italia , Masculino , Retinopatía de la Prematuridad/diagnóstico , Estudios Retrospectivos
8.
Early Hum Dev ; 90 Suppl 1: S60-5, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24709463

RESUMEN

IMPORTANCE: NEC is a common and severe complication in premature neonates, particularly those with very-low-birth-weight (VLBW, <1500 g at birth). Probiotics including lactobacillus rhamnosus GG (LGG) proved effective in preventing NEC in preterm infants in several RCTs. OBJECTIVE: Lactoferrin, a mammalian milk glycoprotein involved in innate immune host defences, can reduce the incidence of NEC in animal models, and its action is enhanced by LGG. We tried to assess whether bovine lactoferrin (BLF), alone or with the probiotic LGG, has a similar effect in human infants, something that has not yet been studied. DESIGN: An international, multicenter, randomized, double-blind, placebo-controlled trial conducted from October 1st, 2007 through July 31st, 2010. SETTING: Thirteen Italian and New Zealand tertiary neonatal intensive care units. PARTICIPANTS: 743 VLBW neonates were assessed until discharge for development of NEC. INTERVENTION: Infants were randomly assigned to receive orally either BLF (100 mg/day) alone (group LF; n = 247) or with LGG (at 6×10(9) CFU/day; group BLF + LGG; n = 238), or placebo (Control group; n = 258) from birth until day 30 of life (45 for neonates <1000 g at birth). MAIN OUTCOME MEASURES: ≥ stage 2 NEC; death-and/or-≥ stage 2 NEC prior to discharge. RESULTS: Demographics, clinical and management characteristics of the 3 groups were similar, including type of feeding and maternal milk intakes. NEC incidence was significantly lower in groups BLF and BLF + LGG [5/247 (2.0%)] and 0/238 (0%), respectively] than in controls [14/258 (5.4%)] (RR = 0.37; 95% CI: 0.136-1.005; p = 0.055 for BLF vs. control; RR = 0.00; p < 0.001 for BLF + LGG vs. control). The incidence of death-and/or-NEC was significantly lower in both treatment groups (4.0% and 3.8% in BLF and BLF + LGG vs. 10.1% in control; RR = 0.39; 95% CI: 0.19-0.80; p = 0.008. RR = 0.37; 95% CI: 0.18-0.77; p = 0.006, respectively). No adverse effects or intolerances to treatment occurred. CONCLUSIONS AND RELEVANCE: Compared with placebo, BLF supplementation alone or in combination with LGG reduced the incidence of ≥ stage 2 NEC and of death-and/or ≥ stage 2 NEC in VLBW neonates. BLF might be a promising strategy to prevent NEC in NICU settings. Further data on larger sample sizes are warranted before BLF can be widespreadly used in clinical settings. TRIAL REGISTRATION: ISRCTN53107700-http://www.controlled-_trials.com/ISRCTN53107700.


Asunto(s)
Antiinfecciosos/uso terapéutico , Enterocolitis Necrotizante/prevención & control , Recién Nacido de muy Bajo Peso , Lactoferrina/uso terapéutico , Animales , Bovinos , Enterocolitis Necrotizante/tratamiento farmacológico , Femenino , Humanos , Recién Nacido , Masculino
9.
Biochim Biophys Acta ; 1843(4): 725-34, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24440855

RESUMEN

Accumulation of transactive response DNA binding protein (TDP-43) fragments in motor neurons is a post mortem hallmark of different neurodegenerative diseases. TDP-43 fragments are the products of the apoptotic caspases-3 and -7. Either excessive or insufficient cellular Ca(2+) availability is associated with activation of apoptotic caspases. However, as far as we know, it is not described whether activation of caspases, due to restricted intracellular Ca(2+), affects TDP-43 cleavage. Here we show that in various cell lineages with restricted Ca(2+) availability, TDP-43 is initially cleaved by caspases-3 and -7 and then, also by caspases-6 and -8 once activated by caspase-3. Furthermore, we disclose the existence of a TDP-43 caspase-mediated fragment of 15kDa, in addition to the well-known fragments of 35 and 25kDa. Interestingly, with respect to the other two fragments this novel fragment is the major product of caspase activity on murine TDP-43 whereas in human cell lines the opposite occurs. This outcome should be considered when murine models are used to investigate TDP-43 proteinopathies.


Asunto(s)
Apoptosis/genética , Calcio/metabolismo , Caspasas/metabolismo , Proteínas de Unión al ADN/metabolismo , Animales , Proteínas de Unión al ADN/química , Proteínas de Unión al ADN/genética , Regulación de la Expresión Génica , Células HeLa , Humanos , Ratones
10.
Artículo en Inglés | MEDLINE | ID: mdl-23021915

RESUMEN

OBJECTIVES: We compare the outcome of medical treatment for ranula versus surgery in children. STUDY DESIGN: Multicentric cohort study. METHODS: The case series includes 37 children with ranulas (diameter 2.7 ± 1.5 cm). Eighteen patients, including 3 who had relapsed after either simple marsupialization or ranula removal alone, received oral nickel gluconate, mercurius heel, and glandula submandibularis suis D10/D30/D200. Fifteen cases underwent marsupialization with packing, and 2 underwent sublingual gland and ranula en-bloc excision. Two patients who recovered spontaneously shortly after diagnosis were excluded. RESULTS: No recurrences occurred among medical patients. Of the 17 surgical patients, 3 treated with marsupialization with packing relapsed. With the 3 surgical failures from other centers a total of 6 of 20 relapses were considered. Swelling or tension was common in surgical cases but unusual in medical patients. CONCLUSIONS: In this case series oral medical treatment for ranula was very effective and more effective than marsupialization with packing.


Asunto(s)
Ránula/terapia , Adolescente , Niño , Preescolar , Diagnóstico por Imagen , Femenino , Humanos , Lactante , Masculino , Ránula/diagnóstico , Retratamiento , Estudios Retrospectivos , Resultado del Tratamiento
11.
Early Hum Dev ; 89 Suppl 1: S44-6, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23809350

RESUMEN

Near infrared spectroscopy (NIRS) monitoring is a new challenge for clinicians who deal with early detection of dangerous hypoperfusion in the brain, as well as in splanchnic and renal districts in critically ill preterm infants. Previous studies performed on infants and children with congenital heart disease, demonstrated the efficacy of this non-invasive method in managing hypoperfusive states pre, post and during cardiac surgery. Its use has improved post surgery outcome. NIRS monitoring has been used also to assess therapeutic intervention utility. Early identification of silent hypoperfusion has made NIRS use in preterm infants very interesting for neonatologists, especially where other techniques have failed. In this work, literature on this topic has been carefully examined, particularly the "two site NIRS" use in preterm infants, to evaluate how regional splanchnic oxygen saturation changes, both in physiological events, such as enteral feeding and in hemodynamic disorders, that occur in patients with significant patent ductus and in hypoperfusive states that lead to necrotizing enterocolitis.


Asunto(s)
Circulación Cerebrovascular/fisiología , Enfermedades del Prematuro/diagnóstico , Neonatología/métodos , Circulación Esplácnica/fisiología , Encéfalo/irrigación sanguínea , Nutrición Enteral , Hemodinámica , Humanos , Recién Nacido , Recien Nacido Prematuro , Enfermedades del Prematuro/fisiopatología , Monitoreo Fisiológico/instrumentación , Monitoreo Fisiológico/métodos , Oximetría/métodos , Oxígeno/sangre , Oxígeno/metabolismo , Espectroscopía Infrarroja Corta
12.
Early Hum Dev ; 89 Suppl 1: S47-50, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23809351

RESUMEN

We report the case of a 31-week gestational age neonate with Candida albicans sepsis and a hepatic abscess. Diagnosis relied on clinical and radiological signs of sepsis, liver function impairment and culture isolation of Candida spp. from sterile sites. Liver ultrasound documented the presence of a multiloculated abscess. Treatment with micafungin (3 mg/kg/day) resulted in normalization of liver function and inflammatory laboratory values and improvement of clinical condition. After 30 days of treatment, the liver abscess resolved and at the 8-month follow up the infant is doing well. Prompt diagnosis and antifungal treatment avoided surgical drainage and liver surgery in this high-risk neonate.


Asunto(s)
Antifúngicos/uso terapéutico , Candidiasis/tratamiento farmacológico , Equinocandinas/uso terapéutico , Enfermedades del Prematuro/tratamiento farmacológico , Lipopéptidos/uso terapéutico , Absceso Hepático/tratamiento farmacológico , Candidiasis/microbiología , Candidiasis/patología , Edad Gestacional , Humanos , Recién Nacido , Recien Nacido Prematuro , Enfermedades del Prematuro/microbiología , Enfermedades del Prematuro/patología , Hígado/diagnóstico por imagen , Hígado/microbiología , Hígado/patología , Absceso Hepático/diagnóstico , Absceso Hepático/microbiología , Masculino , Micafungina , Resultado del Tratamiento , Ultrasonografía
13.
Early Hum Dev ; 89 Suppl 1: S64-8, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23809355

RESUMEN

BACKGROUND: Retinopathy of prematurity (ROP) is a multifactorial disease, but little is known about its relationships with neonatal nutritional policies. Human, maternal milk is the best possible nutritional option for all premature infants, including those at high risk for severe complications of prematurity, such as ROP. OBJECTIVE: This is a secondary analysis of data collected during two multicenter RCTs performed consecutively (years 2004 through 2008) by a network of eleven tertiary NICUs in Italy. The two trials aimed at assessing effectiveness of fluconazole prophylaxis (Manzoni et al., N Engl J Med 2007 Jun 14;356(24):2483-95), and of bovine lactoferrin supplementation (Manzoni et al., JAMA 2009 Oct 7;302(13):1421-8), in prevention of invasive fungal infection, and of late-onset sepsis in VLBW infants, respectively. We tested the hypothesis that exclusive feeding with fresh maternal milk may prevent ROP of any stage - as defined by the ETROP study - in VLBW neonates, compared to formula feeding. METHODS: We analyzed the database from both trials. Systematic screening for detection of ROP was part of the protocol of both studies. The definition of threshold ROP was as defined by the ETROP study. Univariate analysis was performed to look for significant associations between ROP and several possible associated factors, and among them, the type of milk feeding (maternal milk or formula for preterms). When an association was indicated by p < 0.05, multiple logistic regression was used to determine the factors significantly associated with ROP. RESULTS: In both trials combined, 314 infants received exclusively human maternal milk (group A), and 184 a preterm formula because their mothers were not expected to breastfeed. The clinical, demographical and management characteristics of the neonates did not differ between the two groups, particularly related to the presence of the known risk factors for ROP. Overall, ROP incidence (any stage) was significantly lower in infants fed maternal milk (11 of 314; 3.5%) as compared to formula-fed neonates (29 of 184; 15.8%) (RR 0.14; 95% CI 0.12-0.62; p = 0.004). The same occurred for threshold ROP (1.3% vs. 12.3%, respectively; RR 0.19; 95% CI 0.05-0.69; p = 0.009). At multivariate logistic regression controlling for potentially confounding factors that were significantly associated to ROP (any stage) at univariate analysis (birth weight, gestational age, days on supplemental oxygen, systemic fungal infection, outborn, hyperglycaemia), type of milk feeding retained significance, human maternal milk being protective with p = 0.01. CONCLUSIONS: Exclusive human, maternal milk feeding since birth may prevent ROP of any stage in VLBW infants in the NICU.


Asunto(s)
Fórmulas Infantiles/administración & dosificación , Recién Nacido de muy Bajo Peso , Leche Humana , Retinopatía de la Prematuridad/prevención & control , Femenino , Edad Gestacional , Humanos , Lactante , Recién Nacido , Recien Nacido Prematuro , Unidades de Cuidado Intensivo Neonatal , Italia/epidemiología , Masculino , Retinopatía de la Prematuridad/epidemiología , Retinopatía de la Prematuridad/inmunología
14.
Am J Perinatol ; 30(2): 81-8, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23292914

RESUMEN

Neonatal sepsis causes a huge burden of morbidity and mortality and includes bloodstream, urine, cerebrospinal, peritoneal, and lung infections as well as infections starting from burns and wounds, or from any other usually sterile sites. It is associated with cytokine - and biomediator-induced disorders of respiratory, hemodynamic, and metabolic processes. Neonates in the neonatal intensive care unit feature many specific risk factors for bacterial and fungal sepsis. Loss of gut commensals such as Bifidobacteria and Lactobacilli spp., as occurs with prolonged antibiotic treatments, delayed enteral feeding, or nursing in incubators, translates into proliferation of pathogenic microflora and abnormal gut colonization. Prompt diagnosis and effective treatment do not protect septic neonates form the risk of late neurodevelopmental impairment in the survivors. Thus prevention of bacterial and fungal infection is crucial in these settings of unique patients. In this view, improving neonatal management is a key step, and this includes promotion of breast-feeding and hygiene measures, adoption of a cautious central venous catheter policy, enhancement of the enteric microbiota composition with the supplementation of probiotics, and medical stewardship concerning H2 blockers with restriction of their use. Additional measures may include the use of lactoferrin, fluconazole, and nystatin and specific measures to prevent ventilator associated pneumonia.


Asunto(s)
Infección Hospitalaria/prevención & control , Unidades de Cuidado Intensivo Neonatal , Sepsis/prevención & control , Antiinfecciosos/uso terapéutico , Catéteres Venosos Centrales/efectos adversos , Catéteres Venosos Centrales/normas , Contraindicaciones , Fluconazol/uso terapéutico , Antagonistas de los Receptores H2 de la Histamina , Humanos , Recién Nacido , Lactoferrina/uso terapéutico , Leche Humana , Nistatina/uso terapéutico , Neumonía Asociada al Ventilador/prevención & control , Probióticos/uso terapéutico
16.
Am J Perinatol ; 30(1): 25-32, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22773282

RESUMEN

BACKGROUND: Human milk feeding protects against oxidative stress-induced damage in preterm neonates, including severe multifactorial diseases such as retinopathy of prematurity (ROP), necrotizing enterocolitis (NEC), and bronchopulmonary dysplasia (BPD). The carotenoids, which are not found in formula milk, might play a key role in these actions. METHODS: A multicenter, double-blind, randomized controlled trial was conducted in three tertiary Italian neonatal intensive care units. All preterm infants < 32(+6) weeks' gestational age were eligible and were randomized to a single, oral, daily 0.5-mL dose of carotenoid supplementation (0.14 mg lutein + 0.0006 mg zeaxanthin) or placebo (5% glucose solution) from birth till 36 weeks' corrected gestational age. Primary outcomes were threshold ROP, NEC > second stage, and BPD. Surveillance for detection of these diseases and for intolerance/adverse effects was performed. RESULTS: No treatment-related adverse effect was documented in the 229 analyzed infants, whose clinical/demographical characteristics were similar in the two groups. Threshold ROP incidence did not significantly differ in treated (6.2%) versus not treated infants (10.3%; p = 0.18). The same occurred for NEC (1.7% versus 5.1%; p = 0.15) and BPD (4.5% versus 10.3%; p = 0.07). Noteworthy, the progression rate from early ROP stages to threshold ROP was decreased by 50% (0.30 versus 0.44; p = 0.23). CONCLUSION: Lutein/zeaxanthin supplementation in preterm infants is well tolerated. No significant effect was seen on threshold ROP, NEC, or BPD. The decreasing trends of these outcomes in the treatment group need to be assessed and confirmed on larger sample-sizes.


Asunto(s)
Displasia Broncopulmonar/prevención & control , Suplementos Dietéticos , Enterocolitis Necrotizante/prevención & control , Luteína/uso terapéutico , Retinopatía de la Prematuridad/prevención & control , Xantófilas/uso terapéutico , Progresión de la Enfermedad , Método Doble Ciego , Femenino , Edad Gestacional , Humanos , Recién Nacido , Recién Nacido de muy Bajo Peso , Cuidado Intensivo Neonatal , Luteína/efectos adversos , Masculino , Xantófilas/efectos adversos , Zeaxantinas
19.
Pediatrics ; 129(1): 116-23, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22184648

RESUMEN

BACKGROUND: Lactoferrin is a mammalian milk glycoprotein involved in innate immunity. Recent data show that bovine lactoferrin (bLF) prevents late-onset sepsis in preterm very low birth weight (VLBW) neonates. METHODS: This is a secondary analysis of data from a multicenter randomized controlled trial where preterm VLBW neonates randomly received bLF (100 mg/day; group A1), bLF + Lactobacillus rhamnosus GG (10(6) colony-forming units per day; group A2), or placebo (group B) for 6 weeks. Here we analyze the incidence rates of fungal colonization, invasive fungal infection (IFI), and rate of progression from colonization to infection in all groups. RESULTS: This study included 472 neonates whose clinical, nutritional, and demographical characteristics were similar. Overall, the incidence of fungal colonization was comparable (17.6%, 16.6%, and 18.5% in A1, A2, and B, respectively; P = .89 [A1] and .77 [A2]). In contrast, IFIs were significantly decreased in A1 and A2 (0.7% and 2.0%, respectively) compared with B (7.7%; P = .002 [A1] and .02 [A2]), and this was significantly true both in <1000 g (0.9% [A1] and 5.6% [A2], vs 15.0%) and in 1001 to 1500 g infants (0% and 0% vs 3.7%). The progression rate colonization-infection was significantly lower in the bLF groups: 3.7% (A1) and 12% (A2), vs 41.9%; P < .001 (A1) and P = .02 (A2). No IFI-attributable deaths occurred in the treatment groups, versus 2 in placebo. No adverse effects or intolerances occurred. CONCLUSIONS: Prophylactic oral administration of bLF reduces the incidence of IFI in preterm VLBW neonates. No effect is seen on colonization. The protective effect on IFI is likely due to limitation of ability of fungal colonies to progress toward invasion and systemic disease in colonized infants.


Asunto(s)
Antiinfecciosos/uso terapéutico , Enfermedades del Prematuro/prevención & control , Recién Nacido de muy Bajo Peso , Lactoferrina/uso terapéutico , Micosis/prevención & control , Animales , Bovinos , Humanos , Recién Nacido , Recien Nacido Prematuro , Probióticos/administración & dosificación
20.
Curr Opin Infect Dis ; 24(3): 177-82, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21415742

RESUMEN

PURPOSE OF REVIEW: Sepsis-related morbidity and mortality is an increasing concern in all neonatal ICUs (NICUs). Sepsis occurs in 20-40% of all preterm patients, and although much is known on the origin, the incidence is reported to be constantly increasing. Many risk factors account for the increased risk of sepsis in preterms, including use of broad-spectrum antibiotics selecting resistant microflora and pathogenic gut colonization, parenteral nutrition, acid inhibitors and steroids, as well as the systematic and long-lasting use of invasive management and in-dwelling lines. As treatment does not prevent severe long-term neurodevelopmental impairment and sequelae in septic premature neonates, the best strategy is to avoid infections rather than to treat them. RECENT FINDINGS: Published results from several recent randomized controlled trials currently show a level I evidence that fluconazole for prevention of fungal sepsis, probiotics for prevention of necrotizing enterocolitis, and bovine lactoferrin for prevention of bacterial sepsis should be considered as preventive strategies in NICUs. SUMMARY: In this article, the current evidence in favour of lactoferrin use in preterm neonates will be reviewed and the areas of further research and future improvements will be discussed in order to illustrate the implications of the recent findings for clinical practice or research.


Asunto(s)
Antiinfecciosos/administración & dosificación , Quimioprevención/métodos , Lactoferrina/administración & dosificación , Sepsis/prevención & control , Enterocolitis Necrotizante/prevención & control , Fluconazol/administración & dosificación , Humanos , Recién Nacido , Nacimiento Prematuro , Probióticos/administración & dosificación , Ensayos Clínicos Controlados Aleatorios como Asunto
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