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1.
Pediatr Emerg Care ; 37(2): 86-91, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-31181022

RESUMO

INTRODUCTION: The purpose of this study was to assess differences in observed pain-related behaviors during cannulation between a device combining cold and vibration (Buzzy) and the standard care (EMLA patch). METHODS: Patients 18 months to 6 years old, requiring venous access in a pediatric emergency department, received either the Buzzy device or the EMLA patch. Predefined week randomization ensured equal allocation to the 2 intervention groups. Pain during cannulation was measured using the Children's Hospital of Eastern Ontario Pain Scale. Parent and nurse reports, cannulation success, and venous access times were also assessed. RESULTS: In total, 607 included patients were randomized into the Buzzy group (n = 302) or the EMLA group (n = 305). Observed pain-related behaviors scores, parent-assessed pain scores, and nurse-reported pain ratings were higher with Buzzy. CONCLUSIONS: Pain relief by a combination of cold and vibration during cannulation is not as effective as the standard-care method in children 18 months to 6 years old.


Assuntos
Manejo da Dor , Dor , Vibração , Cateterismo , Criança , Humanos , Medição da Dor
2.
Basic Clin Androl ; 30(1): 19, 2020 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-33292161

RESUMO

BACKGROUND: Idiopathic central precocious puberty (ICPP) is supposed to be non-existent in a context of testicular destruction that is typically present in Klinefelter syndrome (KS). Herein, we describe a rare case of ICPP in a Klinefelter patient (47,XXY) with 2 maternal X chromosomes. Moreover, we highlight the differences in gonadotropin levels in comparison to males with ICPP and a normal karyotype. CASE PRESENTATION: An 8 years old boy with a history of cryptorchidism was evaluated for precocious puberty (Tanner staging: P2/G3). Both testes measured 25x35mm. His hormonal profile confirmed a central origin of precocious puberty with high serum testosterone (4.3 ng/ml), luteinizing hormone [LH (3.5 UI/l)] and follicle stimulating hormone [FSH (7.7 UI/l)] levels. Luteinizing hormone-releasing hormone (LHRH) test amplified LH and FSH secretion to 24 and 14 UI/l respectively. Brain magnetic resonance imaging (MRI) was normal. No MKRN3 mutation was detected. He was treated for ICPP for two years. During puberty, he suffered from hypergonadotropic hypogonadism leading to the diagnosis of KS (47,XXY karyotype). Chromosomal analysis by fluorescent multiplex polymerase chain reaction (PCR) using X chromosome microsatellite markers identified 2 maternal X chromosomes. Analysing 8 cases of KS developing ICPP (our reported case and 7 other published cases) revealed that these KS patients with ICPP have higher LH and FSH levels during ICPP episode than in ICPP patients with a normal karyotype (ICPP with KS vs ICPP with a normal karyotype: LH levels 9.4 ± 12 vs 1.1 ± 0.6 UI/l; FSH levels 23.1 ± 38.5 vs 2.7 ± 1.5 UI/l). Furthermore, their response to gonadotropin-releasing hormone (GnRH) stimulation is characterized by excessive LH and FSH secretion (LH levels post-GnRH: 58 ± 48 vs 15.5 ± 0.8 UI/l; FSH levels post-GnRH: 49.1 ± 62.1 vs 5.7 ± 3.9 UI/l). CONCLUSIONS: ICPP in boys is extremely rare. The pathophysiology of ICPP in KS is unknown. However, maternal X supplementary chromosome and early testicular destruction may play a significant role in the initiation of ICPP, in part explaining the relative "overrepresentation of ICPP in KS. Thus, karyotype analysis could be considered for boys suffering from ICPP, especially if testicular size is smaller or gonadotropins are significantly elevated.

3.
Pediatr Pulmonol ; 55(2): 490-495, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31770479

RESUMO

Acute bronchiolitis is responsible for high morbidity in infants. Club cell protein 16 kDa (CC16) is a major pneumoprotein secreted by club cells of the bronchial epithelium and eliminated by the renal pathway. CC16 seems to be a biomarker of epithelial damage in asthma. However, its value as a marker of acute bronchiolitis severity and later recurrent wheezing are uncertain, especially the value of its urinary assay for this purpose. A prospective, observational, analytical study was conducted at Clermont-Ferrand University Hospital to correlate serum CC16 level with clinical severity of bronchiolitis in hospitalized infants aged less than 1 year. We analyzed correlations between serum and urinary CC16, CC16 levels and Wainwright score, immediate morbidity due to bronchiolitis, causal viruses, and recurrent wheezing 1 year after inclusion. In 166 infants, serum CC16 did not correlate with acute bronchiolitis severity (P = .49), but urinary CC16 did (P < .001). In multivariate analysis, urinary CC16 correlated mainly with urinary retinol binding protein (RBP; r = 0.70; P < .001). The logCC16u/logRBPu ratio correlated significantly with severity (P = .02). CC16 levels were not correlated with recurrent wheezing at 1 year. Urinary CC16 could be a useful biomarker in acute bronchiolitis for specific indications. This noninvasive assay would be particularly useful in the young infant population. Several factors must be taken into account in its interpretation, mainly tubular function. Further studies are needed to assess these factors.


Assuntos
Bronquiolite/diagnóstico , Asma , Bioensaio , Biomarcadores/urina , Bronquiolite/metabolismo , Bronquiolite/urina , Testes Diagnósticos de Rotina , Células Epiteliais , Feminino , Humanos , Lactente , Masculino , Análise Multivariada , Estudos Prospectivos , Proteínas , Sons Respiratórios , Uteroglobina
4.
Curr Sports Med Rep ; 18(11): 416-420, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31702723

RESUMO

Hamstring muscle injuries (HMI) are common among athletes. HMI can take many months to years to resolve. Often, athletes do not report complete resolution with typical conservative therapy. We present several cases of athletes who presented with chronic hamstring injuries that resolved immediately after being treated with an ultrasound-guided fascial hydrodissection procedure. Following the procedure and graded rehabilitation protocol, athletes reported resolution of pain and tightness in addition to increased performance and a quicker return to play.


Assuntos
Traumatismos em Atletas/cirurgia , Dissecação/métodos , Músculos Isquiossurais/lesões , Traumatismos da Perna/cirurgia , Lesões dos Tecidos Moles/cirurgia , Adolescente , Adulto , Atletas , Feminino , Humanos , Masculino , Ultrassonografia
5.
Lancet Infect Dis ; 18(12): 1385-1396, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30389482

RESUMO

BACKGROUND: Enteroviruses are the most frequent cause of acute meningitis and are seen increasingly in sepsis-like disease and fever without source in the paediatric population. Detection of enterovirus in cerebrospinal fluid (CSF) specimens by PCR is the gold standard diagnostic test. Our aim was to assess a method of detecting enterovirus in blood specimens by PCR. METHODS: We did a prospective, multicentre, observational study at 35 French paediatric and emergency departments in 16 hospitals. We recruited newborn babies (aged ≤28 days) and infants (aged >28 days to ≤2 years) with fever without source, sepsis-like disease, or suspected meningitis, and children (aged >2 years to ≤16 years) with suspected meningitis, who were admitted to a participating hospital. We used a standardised form to obtain demographic, clinical, and laboratory data, which were anonymised. Enterovirus PCR testing was done in blood and CSF specimens. FINDINGS: Between June 1, 2015, and Oct 31, 2015, and between June 1, 2016, and Oct 31, 2016, we enrolled 822 patients, of whom 672 had enterovirus PCR testing done in blood and CSF specimens. Enterovirus was detected in 317 (47%) patients in either blood or CSF, or both (71 newborn babies, 83 infants, and 163 children). Detection of enterovirus was more frequent in blood samples than in CSF specimens of newborn babies (70 [99%] of 71 vs 62 [87%] of 71; p=0·011) and infants (76 [92%] of 83 vs 62 [75%] of 83; p=0·008), and was less frequent in blood samples than in CSF specimens of children (90 [55%] of 163 vs 148 [91%] of 163; p<0·0001). Detection of enterovirus was more frequent in blood samples than in CSF specimens of infants aged 2 years or younger with fever without source (55 [100%] of 55 vs 41 [75%] of 55; p=0·0002) or with sepsis-like disease (16 [100%] of 16 vs nine [56%] of 16; p=0·008). Detection of enterovirus was less frequent in blood than in CSF of patients with suspected meningitis (165 [67%] of 246 vs 222 [90%] of 246; p<0·0001). INTERPRETATION: Testing for enterovirus in blood by PCR should be an integral part of clinical practice guidelines for infants aged 2 years or younger. This testing could decrease the length of hospital stay and reduce exposure to antibiotics for low-risk patients admitted to the emergency department with febrile illness. FUNDING: University Hospital Clermont-Ferrand.


Assuntos
Sangue/virologia , Infecções por Enterovirus/diagnóstico , Enterovirus/isolamento & purificação , Febre de Causa Desconhecida/diagnóstico , Meningite/diagnóstico , Reação em Cadeia da Polimerase/métodos , Sepse/diagnóstico , Adolescente , Criança , Pré-Escolar , Serviço Hospitalar de Emergência , Enterovirus/genética , Infecções por Enterovirus/virologia , Feminino , Febre de Causa Desconhecida/virologia , França , Humanos , Lactente , Recém-Nascido , Masculino , Meningite/virologia , Técnicas de Diagnóstico Molecular/métodos , Estudos Prospectivos , Sepse/virologia
6.
J Gynecol Obstet Hum Reprod ; 47(10): 577-579, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30232040

RESUMO

A laryngotracheoesophageal cleft, commonly called laryngeal cleft (LC), is a congenital malformation of the posterior part of the larynx creating an abnormal communication between the laryngotracheal axis and the pharyngoesophageal axis. The prenatal ultrasonographic features associating absent stomach, polyhydramnios and mediastinal "pouch sign" are usually considered pathognomonic for esophageal atresia. This observation demonstrates that they can also correspond to a severe form of laryngotracheoesophageal cleft extending to the carina.


Assuntos
Anormalidades Congênitas/diagnóstico por imagem , Atresia Esofágica/diagnóstico por imagem , Esôfago/anormalidades , Laringe/anormalidades , Poli-Hidrâmnios/diagnóstico por imagem , Traqueia/anormalidades , Adulto , Anormalidades Congênitas/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Laringe/diagnóstico por imagem , Gravidez , Ultrassonografia Pré-Natal
7.
Pediatr Pulmonol ; 53(10): 1429-1435, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30113140

RESUMO

INTRODUCTION: Acute bronchiolitis is a major cause of acute respiratory distress in infants. The soluble receptor for advanced glycation end-products (sRAGE) is a biomarker of pulmonary damage processes, with a diagnostic and a prognostic value in acute respiratory distress syndrome (ARDS). The RAGE pathway is also implicated in the pathogenesis of other respiratory diseases like asthma, but the value of sRAGE levels in acute bronchiolitis remains under-investigated. MATERIAL AND METHODS: A prospective, observational, and analytical study was conducted at Clermont-Ferrand University Hospital. The main objective was to evaluate the correlation between serum sRAGE and clinical severity of bronchiolitis in hospitalized infants aged <1 year. We analyzed correlations between serum sRAGE and Wainwright score, short-term morbidity attributable to bronchiolitis, causal viruses and risk for recurrent wheezing at 1 year. RESULTS: The study included 93 infants. sRAGE levels were significantly lower in acute bronchiolitis patients (mean 1101 pg/mL) than in controls (2203 pg/mL, P < 0.001) but did not correlate with clinical severity. No correlation was found between serum sRAGE and severity score, respiratory viruses, and recurrent wheezing at 1 year. Serum sRAGE levels were negatively correlated with age (r = -0.45, P < 0.001). CONCLUSION: Serum sRAGE levels are decreased in acute bronchiolitis but not correlated with disease severity. sRAGE levels should be age-adjusted in infants. Serum sRAGE levels measured in the setting of acute bronchiolitis were not predictive of recurrent wheezing.


Assuntos
Bronquiolite/diagnóstico , Receptor para Produtos Finais de Glicação Avançada/sangue , Doença Aguda , Biomarcadores/sangue , Bronquiolite/sangue , Feminino , Hospitalização , Humanos , Lactente , Masculino , Prognóstico , Estudos Prospectivos , Recidiva , Sons Respiratórios/diagnóstico , Índice de Gravidade de Doença
8.
Expert Rev Respir Med ; 12(6): 475-482, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29741411

RESUMO

INTRODUCTION: Although symptom controls in asthmatic children can be achieved through compliant use of conventional medication, some children have uncontrolled severe persistent asthma, especially if they are allergic. For these children, omalizumab (approved by the EMA and FDA in children aged > 6 years) could be a therapeutic option. However, response to omalizumab varies from one child to another. Predictive biomarkers of omalizumab effectiveness could be useful to monitor response to treatment. Area covered: The authors searched in the PubMed database for publications related to the use of biomarkers in allergic asthma. Supported by their own experience in phenotyping asthma in children, they analyzed whether these biomarkers could be useful in assessing response to omalizumab. Expert commentary: Th2 inflammation in children with allergic asthma can be assessed by measuring several biomarkers (blood eosinophil, serum ECP or periostin, FeNO). While a single measurement may be insufficient, a combination of biomarkers assessments may improve the follow-up of children treated by omalizumab.


Assuntos
Antiasmáticos/uso terapêutico , Asma/tratamento farmacológico , Asma/metabolismo , Omalizumab/uso terapêutico , Antiasmáticos/economia , Biomarcadores/metabolismo , Moléculas de Adesão Celular/metabolismo , Contagem de Células , Criança , Análise Custo-Benefício , Proteína Catiônica de Eosinófilo/metabolismo , Neurotoxina Derivada de Eosinófilo/metabolismo , Eosinófilos/metabolismo , Expiração , Humanos , Inflamação/metabolismo , Óxido Nítrico/metabolismo , Omalizumab/economia , Fenótipo , Escarro/metabolismo
9.
J Med Virol ; 90(5): 867-872, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29380391

RESUMO

To assess risk factors of recurrent bronchial obstruction and allergic sensitization 3 years after an episode of acute bronchiolitis, whether after ambulatory care treatment or hospitalization. A monocentric prospective longitudinal study including infants aged under 1 year with acute bronchiolitis was performed, with clinical (severity score), biological (serum Krebs von den Lungen 6 antigen), and viral (14 virus by naso-pharyngeal suction detection) assessments. Follow-up included a quaterly telephone interview, and a final clinical examination at 3 years. Biological markers of atopy were also measured in peripheral blood, including specific IgEs towards aero- and food allergens. Complete data were available for 154 children. 46.8% of them had recurrent wheezing (RW). No difference was found according to initial severity, care at home or in the hospital, respiratory virus involved, or existence of co-infection. A familial history of atopy was identified as a risk factor for recurrent bronchial obstruction (60% for RW infants versus 39%, P = 0.02), as living in an apartment (35% versus 15%, P = 0.002). 18.6% of the infants were sensitized, with 48.1% of them sensitized to aeroallergens and 81.5% to food allergens. Multivariate analysis confirmed that a familial history of atopy (P = 0.02) and initial co-infection RSV-hRV (P = 0.02) were correlated with the risk of sensitization to aeroallergens at 3 years. Familial history of atopy and RSV-hRV co-infection are risk factors for recurrent bronchial obstruction and sensitization.


Assuntos
Obstrução das Vias Respiratórias/epidemiologia , Bronquiolite/complicações , Coinfecção/complicações , Infecções por Picornaviridae/complicações , Infecções por Vírus Respiratório Sincicial/complicações , Obstrução das Vias Respiratórias/patologia , Animais , Asma/epidemiologia , Asma/patologia , Bronquiolite/patologia , Bronquiolite/virologia , Pré-Escolar , Coinfecção/virologia , Feminino , Seguimentos , Hospitalização , Humanos , Lactente , Recém-Nascido , Estudos Longitudinais , Masculino , Faringe/virologia , Estudos Prospectivos , Recidiva , Vírus Sincicial Respiratório Humano/isolamento & purificação , Rhinovirus/isolamento & purificação , Fatores de Risco , Índice de Gravidade de Doença
10.
Disaster Med Public Health Prep ; 12(4): 450-454, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29056100

RESUMO

OBJECTIVE: To evaluate resilience and frequency of behavioral symptoms in Haitian children internationally adopted before and after the earthquake of January 12, 2010. METHODS: We conducted a retrospective quantitative study in 40 Haitian children. Families were also asked to participate in a qualitative study (individual interview at 18-24 months after the earthquake) and to complete State-Trait Anxiety Inventory (STAI) and STAI for children (STAI-C) questionnaires. RESULTS: Demographic and clinical characteristics were similar in the group who experienced the earthquake (n=22) and in the group who did not (n=18). The families of 30 adoptees were interviewed. There was no statistical difference between the two groups for the STAI (P=0.53) and STAI-C (P=0.75) or for the frequency of behavioral problems. Plenary adoption was pronounced for 84.6% and 33.3% of the children adopted in the pre- and post-earthquake group, respectively (P=0.02). Children rarely talked about the experience of the earthquake, which, by contrast, was a stressful experience for the adoptive families. CONCLUSIONS: Haitian children adopted after the earthquake did not express more stress or behavioral problems than those adopted before it. However, the possibility of a resurgence of mental disorders after age 10 should be borne in mind. (Disaster Med Public Health Preparedness. 2018;12:450-454).


Assuntos
Adoção/etnologia , Terremotos/estatística & dados numéricos , Internacionalidade , Adulto , Criança , Pré-Escolar , Feminino , França , Haiti/etnologia , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria/instrumentação , Psicometria/métodos , Pesquisa Qualitativa , Resiliência Psicológica , Estudos Retrospectivos , Inquéritos e Questionários , Sobreviventes/estatística & dados numéricos
11.
Pediatrics ; 139(3)2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28202768

RESUMO

BACKGROUND AND OBJECTIVES: The actual frequency of respiratory symptoms related to congenital pulmonary malformations (CPMs) remains undetermined. The goal of this study was to prospectively evaluate the respiratory symptoms occurring in infants with prenatally diagnosed CPMs, identify factors associated with the occurrence of these symptoms, and evaluate their resolution after surgery. METHODS: Infectious and noninfectious respiratory symptoms were prospectively collected in a French multicenter cohort of children with CPMs. RESULTS: Eighty-five children were followed up to the mean age of 2.1 ± 0.4 years. Six children (7%) underwent surgery during the first 28 days of life. Of the 79 remaining children, 33 (42%) had respiratory symptoms during infancy before any surgery. Wheezing was the dominant symptom (24 of 79 [30%]), and only 1 infant had documented infection of the cystic lobe. Symptoms were more frequent in children with noncystic CPMs, prenatally (P = .01) or postnatally (P < .03), and with postnatally hyperlucent CPMs (P < .01). Sixty-six children underwent surgery during the follow-up period, and 40% of them displayed symptoms after the intervention. Six children had documented pneumonia during the postoperative period. At the end of the follow-up, pectus excavatum was observed in 10 children, significantly associated with thoracotomy (P < .02) or with surgery before the age of 6 months (P < .002). CONCLUSIONS: CPMs are frequently associated with wheezing episodes. Surgery had no significant impact on these symptoms but was associated with a paradoxical increase in pulmonary infections, as well as an increased risk of pectus excavatum after thoracotomy.


Assuntos
Enfisema Pulmonar/congênito , Anormalidades do Sistema Respiratório/epidemiologia , Osso e Ossos/anormalidades , Pré-Escolar , Estudos de Coortes , Feminino , Seguimentos , França/epidemiologia , Tórax em Funil/epidemiologia , Humanos , Lactente , Recém-Nascido , Pneumonia/epidemiologia , Poli-Hidrâmnios/epidemiologia , Gravidez , Nascimento Prematuro , Enfisema Pulmonar/epidemiologia , Enfisema Pulmonar/cirurgia , Sons Respiratórios/etiologia , Anormalidades do Sistema Respiratório/cirurgia , Toracotomia/efeitos adversos
12.
Ann Thorac Surg ; 102(3): e195-e196, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27549540

RESUMO

Acquired emphysema is a rare pathology in pediatrics. We report the case of a patient born at term with a neonatal respiratory distress, which had required mechanical ventilation. She developed gradually chronic obstructive pulmonary disease with severe emphysematous lesions, respiratory failure and functional impairments. Bilateral emphysema resection, performed at 16 years old, allowed major functional benefits at rest and during exercise. We present the results of respiratory functional evaluations, walk tests and maximal exercise tests (including measure of dynamic hyperinflation) before and after surgery, which highlights that surgery is a successful option in the treatment of compressive emphysema in childhood.


Assuntos
Pneumonectomia/métodos , Doença Pulmonar Obstrutiva Crônica/diagnóstico por imagem , Doença Pulmonar Obstrutiva Crônica/cirurgia , Qualidade de Vida , Síndrome do Desconforto Respiratório do Recém-Nascido/terapia , Adolescente , Progressão da Doença , Feminino , Seguimentos , Humanos , Medidas de Volume Pulmonar , Cuidados Pós-Operatórios/métodos , Respiração Artificial , Síndrome do Desconforto Respiratório do Recém-Nascido/diagnóstico , Testes de Função Respiratória , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
13.
Eur J Dermatol ; 26(4): 370-2, 2016 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-27436771

RESUMO

Internationally adopted children often present diseases contracted in the country of origin. Skin diseases are common in new arrivals, and diagnosis may prove challenging for GPs or even dermatologists if they are inexperienced in the extensive geographic and ethnic diversity of international adoptees. To analyse the frequency and characteristics of skin diseases in international adoptees. In total, 142 adoptees were evaluated for a cross-sectional cohort study. The most frequent diseases observed at arrival were dermatological conditions. Of the adoptees, 70% presented at least one skin disease, of which 57.5% were infectious; Tinea capitis being the most frequent (n = 42). The recovery rate of Tinea capitis was 89% (n = 32/36). Ten cases of scabies were diagnosed. Other diseases included viral skin infection (n = 22), with 16 cases of Molluscum contagiosum and bacterial infection. Skin diseases are very common in internationally adopted children. There is a need for close collaboration between dermatologists and paediatricians to diagnose such infections, as well as clear guidelines to treat them.


Assuntos
Adoção , Dermatopatias/diagnóstico , Dermatopatias/etnologia , África/etnologia , Ásia/etnologia , Brasil/etnologia , Criança , Pré-Escolar , Colômbia/etnologia , Estudos Transversais , Emigração e Imigração , Feminino , França , Haiti/etnologia , Humanos , Lactente , Letônia/etnologia , Lituânia/etnologia , Masculino , Estudos Retrospectivos , Escabiose/diagnóstico , Escabiose/etnologia , Dermatopatias Bacterianas/diagnóstico , Dermatopatias Bacterianas/etnologia , Dermatopatias Virais/diagnóstico , Dermatopatias Virais/etnologia , Tinha do Couro Cabeludo/diagnóstico , Tinha do Couro Cabeludo/etnologia
14.
PLoS One ; 10(3): e0122446, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25798916

RESUMO

We compared the proliferation of neonatal and adult airway smooth muscle cells (ASMC) with no/moderate lung disease, in glucose- (energy production by glycolysis) or glucose-free medium (ATP production from mitochondrial oxidative phosphorylations only), in response to 10% fetal calf serum (FCS) and PDGF-AA. In the presence of glucose, cell counts were significantly greater in neonatal vs. adult ASMC. Similarly, neonatal ASMC DNA synthesis in 10% FCS and PDGF-AA, and [Ca2+]i responses in the presence of histamine were significantly enhanced vs. adults. In glucose-free medium, cell proliferation was preserved in neonatal cells, unlike in adult cells, with concomitant increased porin (an indicator of mitochondrial activity) protein expression. Compared to adults, stimulated neonatal human ASMC are in a rapid and robust proliferative phase and have the capacity to respond disproportionately under abnormal environmental conditions, through increased mitochondrial biogenesis and altered calcium homeostasis.


Assuntos
Miócitos de Músculo Liso/metabolismo , Adulto , Idoso , Proteínas Estimuladoras de Ligação a CCAAT/metabolismo , Cálcio/metabolismo , Sinalização do Cálcio , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , DNA/metabolismo , Feminino , Glucose/farmacologia , Humanos , Recém-Nascido , Pneumopatias/metabolismo , Pneumopatias/patologia , Masculino , Pessoa de Meia-Idade , Mitocôndrias/metabolismo , Miócitos de Músculo Liso/citologia , Miócitos de Músculo Liso/efeitos dos fármacos , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo , Fator de Crescimento Derivado de Plaquetas/farmacologia , Canais de Cátion TRPC/metabolismo , Fatores de Transcrição/metabolismo
15.
Pediatr Pulmonol ; 50(3): 213-221, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24574193

RESUMO

OBJECTIVES: Few studies have been made on the impact of therapeutic education (TE) on the quality of life (QOL) of asthmatic primary-school aged children. We attempted to assess the beneficial effects on the QOL of children and their parents of a short TE program initiated immediately after the first consultation with a pediatric pulmonologist. METHODS: The QOL of 31 families of asthmatic children (aged 5-11) was measured before and 3 months after a short and early programme of TE by the French version of the Pictured Child's Quality of Life Self Questionnaire (AUQUEI, AUtoquestionnaire QUalité de vie Enfant Imagé) for the children, and by the Paediatric Asthma Caregiver's Quality of Life Questionnaire (PACQLQ) for the parents. The other criteria studied were asthma management, school and workplace absenteeism and functional respiratory parameters. RESULTS: TE did not significantly alter the AUQUEI score (P = 0.67). No change was observed in the different areas studied: autonomy (P = 0.97), leisure activities (P = 0.64), functions (P = 0.88), and social relations (P = 0.51). In contrast, the PACQLQ score considerably improved after TE (P < 0.001), as evidenced by reduced activity limitations (P < 0.001) and improved emotional functioning of parents (P < 0.001). These results were accompanied by a significant improvement in asthma management, with, in particular, a major decrease in the use of medication (P < 0.001) and the number of unscheduled medical consultations (P < 0.001) and visits to the emergency department (P = 0.02); a decrease in school absenteeism (P = 0.009); and an improvement in forced expiratory volume in 1 sec (FEV1 ) (P = 0.05). CONCLUSIONS: Our TE program had rapid and beneficial effects on numerous objective and subjective parameters, thereby contributing to the well-being of the families and probably to a subsequent decrease in the overall cost of asthma management. Pediatr Pulmonol. 2015; 50:213-221. © 2014 Wiley Periodicals, Inc.

16.
Am J Physiol Lung Cell Mol Physiol ; 308(2): L147-57, 2015 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-25416379

RESUMO

Congenital diaphragmatic hernia (CDH) is a common life-threatening congenital anomaly resulting in high rates of perinatal death and neonatal respiratory distress. Some of the nonisolated forms are related to single-gene mutations or genomic rearrangements, but the genetics of the isolated forms (60% of cases) still remains a challenging issue. Retinoid signaling (RA) is critical for both diaphragm and lung development, and it has been hypothesized that subtle disruptions of this pathway could contribute to isolated CDH etiology. Here we used time series of normal and CDH lungs in humans, in nitrofen-exposed rats, and in surgically induced hernia in rabbits to perform a systematic transcriptional analysis of the RA pathway key components. The results point to CRPBP2, CY26B1, and ALDH1A2 as deregulated RA signaling genes in human CDH. Furthermore, the expression profile comparisons suggest that ALDH1A2 overexpression is not a primary event, but rather a consequence of the CDH-induced lung injury. Taken together, these data show that RA signaling disruption is part of CDH pathogenesis, and also that dysregulation of this pathway should be considered organ specifically.


Assuntos
Sistema Enzimático do Citocromo P-450/biossíntese , Diafragma/embriologia , Hérnias Diafragmáticas Congênitas/metabolismo , Retinal Desidrogenase/biossíntese , Vitamina A/metabolismo , Família Aldeído Desidrogenase 1 , Animais , Linhagem Celular , Sistema Enzimático do Citocromo P-450/genética , Diafragma/patologia , Modelos Animais de Doenças , Feminino , Regulação da Expressão Gênica no Desenvolvimento , Hérnias Diafragmáticas Congênitas/genética , Hérnias Diafragmáticas Congênitas/patologia , Humanos , Pulmão/embriologia , Masculino , Coelhos , Ratos , Retinal Desidrogenase/genética , Ácido Retinoico 4 Hidroxilase , Proteínas Celulares de Ligação ao Retinol/biossíntese , Proteínas Celulares de Ligação ao Retinol/genética , Transdução de Sinais/genética , Vitamina A/genética
17.
Pediatrics ; 133(5): e1285-91, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24777224

RESUMO

BACKGROUND AND OBJECTIVE: Congenital pulmonary malformations (CPM) are mostly recognized on prenatal ultrasound scans. In a minority of cases, they may impair breathing at birth. The factors predictive of neonatal respiratory distress are not well defined, but an understanding of these factors is essential for decisions concerning the need for the delivery to take place in a tertiary care center. The aim of this study was to identify potential predictors of respiratory distress in neonates with CPM. METHODS: We selected cases of prenatal diagnosis of hyperechoic and/or cystic lung lesions from RespiRare, the French prospective multicenter registry for liveborn children with rare respiratory diseases (2008-2013). Prenatal parameters were correlated with neonatal respiratory outcome. RESULTS: Data were analyzed for 89 children, 22 (25%) of whom had abnormal breathing at birth. Severe respiratory distress, requiring oxygen supplementation or ventilatory support, was observed in 12 neonates (13%). Respiratory distress at birth was significantly associated with the following prenatal parameters: mediastinal shift (P = .0003), polyhydramnios (P = .05), ascites (P = .0005), maximum prenatal malformation area (P = .001), and maximum congenital pulmonary malformation volume ratio (CVR) (P = .001). Severe respiratory distress, requiring oxygen at birth, was best predicted by polyhydramnios, ascites, or a CVR >0.84. CONCLUSIONS: CVR >0.84, polyhydramnios, and ascites increased the risk of respiratory complications at birth in fetuses with CPM, and especially of severe respiratory distress, requiring oxygen supplementation or more intensive intervention. In such situations, the delivery should take place in a tertiary care center.


Assuntos
Sequestro Broncopulmonar/diagnóstico por imagem , Malformação Adenomatoide Cística Congênita do Pulmão/diagnóstico por imagem , Pulmão/anormalidades , Pulmão/diagnóstico por imagem , Síndrome do Desconforto Respiratório do Recém-Nascido/diagnóstico por imagem , Síndrome do Desconforto Respiratório do Recém-Nascido/etiologia , Ultrassonografia Pré-Natal , Ascite/diagnóstico por imagem , Feminino , Idade Gestacional , Humanos , Recém-Nascido , Masculino , Poli-Hidrâmnios/diagnóstico por imagem , Gravidez , Resultado da Gravidez , Segundo Trimestre da Gravidez , Estudos Prospectivos , Sistema de Registros , Fatores de Risco , Estatística como Assunto
18.
J Med Virol ; 86(11): 1944-52, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24374757

RESUMO

Krebs von den Lungen 6 antigen (KL-6) has been shown to be a useful biomarker of the severity of Respiratory syncytial virus bronchiolitis. To assess the correlation between the clinical severity of acute bronchiolitis, serum KL-6, and the causative viruses, 222 infants with acute bronchiolitis presenting at the Pediatric Emergency Department of Estaing University Hospital, Clermont-Ferrand, France, were prospectively enrolled from October 2011 to May 2012. Disease severity was assessed with a score calculated from oxygen saturation, respiratory rate, and respiratory effort. A nasopharyngeal aspirate was collected to screen for a panel of 20 respiratory viruses. Serum was assessed and compared with a control group of 38 bronchiolitis-free infants. No significant difference in KL-6 levels was found between the children with bronchiolitis (mean 231 IU/mL ± 106) and those without (230 IU/mL ± 102), or between children who were hospitalized or not, or between the types of virus. No correlation was found between serum KL-6 levels and the disease severity score. The absence of Human Rhinovirus was a predictive factor for hospitalization (OR 3.4 [1.4-7.9]; P = 0.006). Older age and a higher oxygen saturation were protective factors (OR 0.65[0.55-0.77]; P < 0.0001 and OR 0.67 [0.54-0.85] P < 0.001, respectively). These results suggest that in infants presenting with bronchiolitis for the first time, clinical outcome depends more on the adaptive capacities of the host than on epithelial dysfunction intensity. Many of the features of bronchiolitis are affected by underlying disease and by treatment.


Assuntos
Biomarcadores/sangue , Bronquiolite/diagnóstico , Técnicas de Apoio para a Decisão , Testes Diagnósticos de Rotina/métodos , Mucina-1/sangue , Viroses/diagnóstico , Bronquiolite/patologia , Feminino , França , Hospitais Universitários , Humanos , Lactente , Recém-Nascido , Masculino , Estudos Prospectivos , Índice de Gravidade de Doença , Viroses/patologia
19.
PLoS One ; 8(7): e68571, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23874676

RESUMO

Enteroviruses (EVs) are a major cause of aseptic meningitis, and RNA detection using molecular assay is the gold standard diagnostic test. The aim of this study was to assess the impact of an EV positive diagnosis on the clinical management of patients admitted for meningitis over the course of two observational study periods (2005 and 2008-09) in the same clinical departments. We further investigated in multivariate analysis various factors possibly associated with hospital length of stay (LOS) in all age groups (infants, children, and adults). The results showed an overall improvement in the management of patients (n = 142) between the study periods, resulting in a significantly shorter hospital LOS for adults and children, and a shorter duration of antibiotic use for adults and infants. In multivariate analysis, we observed that the time from molecular test results to discharge of patients and the median duration of antibiotic treatment were associated with an increase in LOS in all age groups. In addition, among adults, the turnaround time of the molecular assay was significantly correlated with LOS. The use of CT scan in children and hospital admission outside the peak of EV prevalence in infants tended to increase LOS. In conclusion, the shorter length of stay of patients with meningitis in this study was due to various factors including the rapidity of the EV molecular test (particularly in adults), greater physician responsiveness after a positive result (in adults and children), and greater experience on the part of physicians in handling EV meningitis, as evidenced by the shorter duration of antibiotic use in adults and infants.


Assuntos
Infecções por Enterovirus/diagnóstico , Enterovirus/genética , Meningite Asséptica/diagnóstico , Meningite Viral/diagnóstico , Adolescente , Adulto , Criança , Pré-Escolar , Infecções por Enterovirus/virologia , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Meningite Asséptica/virologia , Meningite Viral/virologia , Pessoa de Meia-Idade , Patologia Molecular/métodos , Estudos Prospectivos , Adulto Jovem
20.
J Pediatr Surg ; 47(10): e9-10, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23084237

RESUMO

Congenital isolated H-type tracheoesophageal fistula (H-TEF) is a rare malformation of the airways. Surgery should not be delayed once the diagnosis is established. Identification of the fistula during surgery is a prerequisite for a successful outcome. Intubation or cannulation of the H-TEF with a catheter can help the surgeon to identify the fistula. A rigid bronchoscope is generally used for cannulation of the fistula. Cannulation of an H-TEF in a newborn with a flexible bronchoscope has the merit of simplicity and safety. We report the insertion of a catheter in an isolated H-TEF in a newborn using a flexible bronchoscope and think that this method can be easily applied.


Assuntos
Broncoscopia , Fístula Traqueoesofágica/congênito , Fístula Traqueoesofágica/cirurgia , Cateterismo , Feminino , Humanos , Recém-Nascido , Fístula Traqueoesofágica/classificação
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