Abstract:
:Bronchial reactivity was assessed in 66 children with bronchial asthma (aged 8-15 years) by provocation with histamine-HCl during a symptom-free period. A significant bronchial reaction to histamine was defined as a 50% increase in the resistance of the respiratory system (Rrs) determined by the forced oscillation technique. The provocative dose causing a 50% increase in the Rrs (PD50Rrs) was interpolated from the log dose-response curve. The mean PD50Rrs was significantly lower in children with asthma (0.22 mg/mL) compared with a group of healthy children in the same age range (1.55 mg/mL) (P < 0.001). In children with clinically severe asthma, the mean PD50Rrs was lower (0.13 mg/mL) than in children with mild asthma (0.34 mg/mL) (P < 0.001). Transcutaneous PO2 (PtcO2) was monitored in 25 of the children with asthma. In this group the proportion of mild and severe asthma, the baseline lung function variables, and the PD50Rrs were not significantly different from those of the whole group of children. During the reaction, the PtcO2 fell on average by 29% of the baseline value (P < 0.001); in 88% of the children, the fall in PtcO2 was 20% or more of the baseline value. We conclude that histamine provocation tests using the forced oscillation technique and transcutaneous PO2 to assess a bronchial reaction have a good discriminatory capacity for different degrees of clinical severity of asthma in children.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Holmgren D,Engström I,Bjure J,Sixt R,Aberg Ndoi
10.1002/ppul.1950150308subject
Has Abstractpub_date
1993-03-01 00:00:00pages
168-74issue
3eissn
8755-6863issn
1099-0496journal_volume
15pub_type
杂志文章abstract:BACKGROUND:High-frequency (HF) oscillatory ventilation has been shown to improve carbon dioxide (CO2 ) clearance in premature infants. In a previous in vitro lung model with normal lung mechanics we demonstrated significantly improved CO2 washout by HF oscillation of bubble continuous positive airway pressure (BCPAP). ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25040
更新日期:2020-11-01 00:00:00
abstract::Obstructive sleep apnea syndrome (OSAS) has been associated with reduced neurocognitive performance in children, but the underlying etiology is unclear. The aim of this study was to evaluate the relationship between hypoxemia, respiratory arousals, and neurocognitive performance in snoring children referred for adenot...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.10453
更新日期:2004-04-01 00:00:00
abstract::The aim of this study was to examine a possible association between birth season (date of birth) and future development of asthma in children. A case-control study was designed to include asthmatic children aged 2-7 years, living in the city of Beer-Sheva, in southern Israel, registered in one pediatric center. Contro...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20442
更新日期:2006-12-01 00:00:00
abstract::Spirometric testing is traditionally achievable in children of school-age and beyond. Incorporation of interactive incentives motivates preschool children to facilitate measurement of forced expiratory indices. Validated spirometric reference standards are available for Caucasian preschoolers but lacking in Asians. We...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22773
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVES:To review 15-year trends in respiratory care of extremely preterm infants managed in a tertiary perinatal center; to identify the factors contributing to their evolution; and to determine whether these changes had an impact on infant mortality, severe morbidity, and growth. METHODS:Retrospective cohort stud...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24774
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:Night-time symptoms and hypoxemia during sleep may affect sleep quality in children with chronic lung disease such as bronchiectasis. Poor sleep quality may impair growth, learning, and emotional development of children. Our aim was to assess the sleep quality and associated factors in children with non-cyst...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21454
更新日期:2011-09-01 00:00:00
abstract::To determine the natural history of lung vascular remodeling and cardiac changes in the rat model of persistent pulmonary hypertension syndrome (PPHN) of the newborn, we studied fetal rats subjected to maternal indomethacin administration initiated on day 19 of gestation and continued for 2, 3, or 4 days. Animals rece...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1057
更新日期:2001-05-01 00:00:00
abstract::Foreign-body aspiration (FBA) is a commonly encountered serious problem during childhood, accounting for 7% of lethal accidents in children aged 1-3 years. Bronchoscopy is indicated when a clear history of FBA is present, but the history may be unreliable. Clinical manifestations can be seen in various diseases, and w...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20128
更新日期:2005-02-01 00:00:00
abstract::A new method that permits the measurement of adult-type maximal expiratory flow-volume curves and fractional lung volumes in sedated infants was recently described. The purpose of this study was to define the normal range for these new measures of pulmonary function in infants and young children. Measurements of force...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/1099-0496(200009)30:3<215::aid-ppul6>3.0.c
更新日期:2000-09-01 00:00:00
abstract:BACKGROUND:Plastic bronchitis (PB) is a rare, variable, and potentially fatal disease. This study aimed to assess the efficacy of fiberoptic bronchoscopy (FOB) and bronchoalveolar lavage (BAL) in treating children with PB. METHODS:In total, 15 children with PB, between 2012 and 2020, were enrolled in our study. Within...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25016
更新日期:2020-11-01 00:00:00
abstract::Asthma has been found related to a higher risk of psychological problems. Inconsistent results have been reported with respect to the quality of life of children with asthma. So there may be a complex relationship between asthma severity, quality of life, and psychological factors. The aim of this study was to examine...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20509
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:Since preventive therapies for bronchopulmonary dysplasia (BPD) are limited we treated preterm infants with azithromycin to decrease the incidence of BPD. METHODS:Infants less than 1,250 g birth weight were randomized to azithromycin or placebo within 12 hr of beginning mechanical ventilation and within 72 h...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ppul.21352
更新日期:2011-02-01 00:00:00
abstract::Little attention has been focused on the progressive pulmonary deterioration which occurs in mechanically ventilated infants with normal or mildly abnormal lungs. We hypothesized that lung function would deteriorate over a 24-hr period in anesthetized neonatal piglets with normal lungs mechanically ventilated at 2 cm ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950190306
更新日期:1995-03-01 00:00:00
abstract:OBJECTIVES:To report the respiratory function of school-aged children with infantile Pompe disease (IPD) who started enzyme replacement therapy (ERT) in infancy and early childhood. STUDY DESIGN:This is a retrospective chart review of pulmonary function tests of: (a) patients with IPD 5 to 18 years of age, (b) who wer...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24621
更新日期:2020-03-01 00:00:00
abstract::We studied the effect of low-protein diet (8% casein) on lung growth in rats from 3 to 7 weeks of age. Their diet was isocaloric with that of control animals fed a diet of 20% casein. The calorie intake of experimental animals was increased during the first 3 weeks of the experiment, but they increased less (about 10%...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950070308
更新日期:1989-01-01 00:00:00
abstract::With better understanding of the role of type 2 inflammation in allergic asthma, there has been progress made in the development of new biologic therapies targeting these specific pathways. This review will consider diagnostic criteria for using biologic therapies for pediatric asthma with special emphasis on populati...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.24613
更新日期:2020-03-01 00:00:00
abstract::There is increasing interest in using the Multiple Breath Washout technique and the lung clearance index (LCI) for detecting early pulmonary changes, for example, in cystic fibrosis lung disease. However, there are still limited data regarding equipment specific reference ranges, repeatability and reproducibility. The...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21093
更新日期:2009-12-01 00:00:00
abstract::Tracheal bronchus (TRB) has been generally considered an anatomical variant of the tracheobronchial tree without a precise pathological effect. Its prevalence is estimated to be between 0.2% to 3% of all children undergoing bronchoscopy and scientific information has been limited to case reports or small case series. ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,多中心研究
doi:10.1002/ppul.24435
更新日期:2019-10-01 00:00:00
abstract:BACKGROUND:Chronic colonization with Pseudomonas (P.) aeruginosa worsens the prognosis of cystic fibrosis (CF) patients. This study aims to analyze the functional properties of neutrophils in CF patients with P. aeruginosa colonization. METHODS:Patients with CF (n = 16) were grouped by positivity of P. aeruginosa in s...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25294
更新日期:2021-01-29 00:00:00
abstract::Patients with cystic fibrosis (CF) often experience acute pulmonary exacerbations (APE) and may be treated with a wide variety of intravenous antibiotics. The aim of this review is to provide an evidence-based summary of pharmacokinetic/pharmacodynamic (PK/PD), tolerability, and efficacy studies utilizing the intraven...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22664
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Child exposure to cigarette smoke is harmful. It should be reduced through parental smoking cessation interventions. The aim of our study was to determine the impact of simple advice provided by the pediatrician on the smoking habits of parents of children with cystic fibrosis (CF), diabetes mellitus (DM) an...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25277
更新日期:2021-01-22 00:00:00
abstract:OBJECTIVE:To carry out a cost-effectiveness analysis of omitting chest radiography in the diagnosis of infant bronchiolitis. HYPOTHESIS:Omitting chest radiographs in the diagnosis of typical bronchiolitis was expected to reduce costs without adversely affecting the detection rate of alternate diseases. STUDY DESIGN:A...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20948
更新日期:2009-02-01 00:00:00
abstract::This study evaluates different ventilator strategies during gas (GV) and partial liquid ventilation (PLV) in spontaneously breathing animals. We hypothesized that during PLV, spontaneously breathing animals would self-regulate respiratory parameters by increasing respiratory rate (RR) and minute ventilation (V'E) when...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(199811)26:5<319::aid-ppul3
更新日期:1998-11-01 00:00:00
abstract::Prader-Willi syndrome (PWS) is a genetic disorder, with hypotonia being the predominant feature in infancy, and developmental delay, obesity, and behavioral problems becoming more prominent in childhood and adolescence. Children with this disorder frequently suffer from excessive daytime sleepiness and have a primary ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.10152
更新日期:2002-09-01 00:00:00
abstract::Tracheobronchomegaly (Mounier-Kuhn syndrome) is characterized by dilatation of the central airways, tracheobronchial outpouchings, and chronic tracheobronchitis. Most cases are diagnosed in adulthood. We report the clinical, radiographic, and bronchoscopic findings in a 14-year-old boy with tracheobronchomegaly, ptosi...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/(sici)1099-0496(200006)29:6<476::aid-ppul1
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND:Asthma is associated with poorer outcomes in sickle cell disease (SCD). Whether AHR can exist in SCD as a distinct entity, separate and independent of asthma, is unknown. AIMS:Our goal was to elucidate the prevalence of AHR, as measured by a methacholine challenge test (MCT), in children with SCD who did no...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23374
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVES:To identify the spirometric equations that are most appropriate for use in children and adolescents living in Bogota, Colombia after evaluating a set of relevant previously-developed equations, including the Global Lung Function Initiative (GLI) 2012 spirometry reference equations. METHODS:Healthy children ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24331
更新日期:2019-06-01 00:00:00
abstract::Even though childhood asthma is assumed to comprise reversible airway obstruction, some children develop irreversible airway obstruction (not reversed by a bronchodilator or corticosteroids); this may be due to inflammation that has caused remodeling. Lately, it has been claimed that in the absence of treatment with i...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.10090
更新日期:2002-04-01 00:00:00
abstract::The autoimmune manifestations of primary immunodeficiencies, such as autoimmune lymphoproliferative syndrome (ALPS) and common variable immunodeficiency (CVID), often constitute a great therapeutic challenge and have a significant impact on patients' morbidity and mortality. The most common autoimmune presentations ar...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23757
更新日期:2017-10-01 00:00:00
abstract::Specific airway resistance (SRaw) is conventionally determined by multiplying the plethysmographically measured values of airway resistance and functional residual capacity (FRC). An alternative single-step method, which avoids the need for airway occlusion during determination of FRC, has been described by Dab and Al...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950060212
更新日期:1989-01-01 00:00:00