Abstract:
:Spirometry is used to monitor respiratory progress in children with Duchenne muscular dystrophy (DMD). Mucociliary clearance depends on cough strength, which can be measured by peak cough flow (PCF). It is not routinely measured in most centers. When the PCF falls below 270 l/min, mucociliary clearance is likely to be impaired during viral illnesses, and techniques to assist mucociliary clearance should be taught. There is no known association between spirometry and PCF. Our aim was to assess if PCF relates to spirometry measures, and if spirometry can be used to predict when the PCF <270 l/min. Children with DMD aged 6-19 years were recruited. Spirometry was performed with a Jaeger Masterscope with version 4.60 software. PCF was performed with a Wright peak flow meter. Data were collected into an Access '97 database, and statistics were performed with Stata 7.0. The association between PCF and spirometry was defined with linear regression. Logistic regression was used to predict the probability that the PCF would be <270 l/min for any given forced vital capacity (FVC) or forced expired volume in 1 sec (FEV1). The risk ratios for PCF <270 l/min were calculated for the spirometry parameters. PCF is associated with FVC (R2, 0.72) and FEV1 (R2, 0.69). The likelihood of PCF <270 l/min rises when FVC <2.l and FEV1 <2.l/sec. The risk ratio for PCF <270 l/min when FVC <2.1 l is 4.80 (1.72-13.40) and when FEV1 <2.1 l/sec is 3.94 (1.43-10.85). In children with DMD, PCF should be measured when FVC <2.1 l or FEV1 <2.1 l/sec, so that techniques to assist with mucociliary clearance can be effectively used.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Gauld LM,Boynton Adoi
10.1002/ppul.20151subject
Has Abstractpub_date
2005-05-01 00:00:00pages
457-60issue
5eissn
8755-6863issn
1099-0496journal_volume
39pub_type
杂志文章abstract::Standard chemotherapy for tuberculosis (TB) in children uses hepatotoxic drugs. Published data and guidelines on monitoring of liver function during TB treatment are often contradictory and not directly relevant to the pediatric population. We carefully monitored 43 children (age 6.6 years, 0.7-15.1 [median, range]; 4...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1099-0496(199901)27:1<37::aid-ppul8>
更新日期:1999-01-01 00:00:00
abstract::While many factors that contribute to the occurrence of lower respiratory tract infections (LRTI) in Canadian indigenous children have been described, the role of aspiration during swallowing has not been explored in these children. Because of an increase in referrals of indigenous children from our catchment area (Ma...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21489
更新日期:2011-12-01 00:00:00
abstract::The introduction of NBS in Ireland in July 2011, provided a unique opportunity to investigate clinical outcomes using a comparative historical cohort study. Clinical cohort: children clinically diagnosed with CF born 1 July 2008 to 30 June 2011, and NBS cohort: children diagnosed with CF through NBS born 1 July 2011 t...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24876
更新日期:2020-09-01 00:00:00
abstract::Forced oscillatory respiratory resistance was measured in 138 healthy children aged 2- to 16-years-old using a commercial unit. Regression analysis was performed using the resistance measurements obtained at frequencies of 6 Hz and 26 Hz and averages of measurements obtained at frequencies of from 6-26 Hz, 6-10 Hz, an...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950010305
更新日期:1985-05-01 00:00:00
abstract::SUMMARY. Patients with idiopathic scoliosis are reported to have a restrictive pattern on pulmonary function tests. A case is presented of a teenage girl with juvenile idiopathic scoliosis who had evidence of airways obstruction in addition to restriction on pulmonary function tests (PFT). Examination of flow-volume l...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/1099-0496(200101)31:1<86::aid-ppul1012>3.0
更新日期:2001-01-01 00:00:00
abstract:OBJECTIVES:To prospectively assess longitudinal lung function in children with sickle cell disease (SCD). WORKING HYPOTHESIS:Lung function in SCD children deteriorates with increasing age and the decline is more marked in younger children who have recently suffered ACS episodes. STUDY DESIGN:Two prospective longitudi...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23367
更新日期:2016-07-01 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::Pulmonary function and exercise tolerance were evaluated in late childhood in two groups of prematurely born children: one group with bronchopulmonary dysplasia (BPD) [n = 15; gestational age at birth (GA): 29.6 +/- 2.8 weeks; birth weight (BW): 1,367 +/- 548 g; age at test: 7.9 +/- 0.6 years], and a second group with...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.1950200506
更新日期:1995-11-01 00:00:00
abstract::We evaluated 4 patients who developed severe, symptomatic stridor during maximal cardiopulmonary exercise testing, all referred due to exercise-related dyspnea. All underwent resting, unsedated transnasal fiberoptic laryngoscopy and had normal findings. Four patients performed repeat maximal exercise testing with fibe...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20076
更新日期:2005-01-01 00:00:00
abstract::The choice of antibiotics for sinusitis in children with cystic fibrosis (CF) is empirical or based on lower airway cultures, because sinus cultures are difficult to obtain. The aim of this study was to identify the main organisms cultured from CF children with chronic sinusitis, and to evaluate the concordance of con...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20396
更新日期:2006-05-01 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::Little is known about the respiratory behavior of the intercostal muscles within a neonatal and developmental context. We, therefore, examined intercostal muscle electromyographic (EMG) activity in kittens (1 month old, n = 8; 2 months old, n = 7) during eupnea and heightened respiratory drive induced by hypercapnia. ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950050407
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:Chest computerized tomography (CT) scores are associated with the frequency of future pulmonary exacerbations in people with cystic fibrosis (CF). However, cut-off values to identify children with mild lung disease with different risks for frequent future pulmonary exacerbations have not been identified. ME...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,随机对照试验
doi:10.1002/ppul.24144
更新日期:2018-10-01 00:00:00
abstract::A study was designed to determine the sensitivity and specificity of a cold air bronchial provocation test. A total of 18 children with asthma (mean age 12 years) and 18 normal children (mean age 14 years) were studied. The cold air challenge consisted of a 4 min period of isocapnic hyperventilation of subfreezing air...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950030410
更新日期:1987-07-01 00:00:00
abstract::In adults, the term specific pulmonary renal syndrome describes disorders with pulmonary and glomerular manifestations and includes Wegener's granulomatosis, Goodpasture disease, and systemic lupus erythematosus. Nonspecific pulmonary renal syndrome refers to either pulmonary disease complicating glomerular disease, o...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/(sici)1099-0496(200005)29:5<382::aid-ppul7
更新日期:2000-05-01 00:00:00
abstract::Plastic bronchitis (PB) is an uncommon, potentially fatal disease, marked by endobronchial cast formation causing variable degrees of respiratory distress. Primary and secondary pulmonary lymphatic abnormalities have been identified among the underlying mechanisms of cast formation. We present a case of PB where lymph...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22673
更新日期:2013-05-01 00:00:00
abstract::Exposure to chronic constant or intermittent hypoxia (CCH or CIH) may have different effects on growth and development in early life. In this work, we exposed postnatal day 2 (P2) CD1 mice to CCH or CIH (11% O2) for 4 weeks and examined the effect of hypoxia on body and organ growth until P30. Regression analysis show...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20729
更新日期:2008-01-01 00:00:00
abstract::Few data are known about the effects of sleep-related breathing disorders (SRBD) on the cardiovascular system in adolescents. Forty healthy adolescents (mean age, 13.7 +/- 1.6 years) answered a questionnaire regarding symptoms of sleep-related breathing disorders (SRBD) and underwent a cardiorespiratory polygraphy and...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.10303
更新日期:2003-07-01 00:00:00
abstract::The airway occlusion techniques for assessing passive respiratory mechanics have become well established methods in fullterm neonates and older infants. The single breath technique (SBT) is frequently used for assessing lung function in intubated infants on neonatal intensive care units. However, less is known about t...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950150508
更新日期:1993-05-01 00:00:00
abstract::The long-term efficacy and safety of aminoglycoside aerosol therapy for Pseudomonas aeruginosa colonization/infection in cystic fibrosis has not been fully investigated. In the present study, 14 patients with cystic fibrosis, ages 8-19 years (mean: 13.3 years), received tobramycin aerosol therapy for a mean duration o...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950060207
更新日期:1989-01-01 00:00:00
abstract::Environmental tobacco smoke, also called passive smoking, was shown to have adverse effects on the health of children. Hydrogen peroxide (H2O2) is proposed as a sensitive marker of oxidative injury and inflammatory processes in the airways, being increased in adult active cigarette smokers. We tested whether passive s...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.20129
更新日期:2005-01-01 00:00:00
abstract::The purpose of this report is to describe the College of American Pathologists sweat testing (SW) proficiency testing program for cystic fibrosis, to evaluate its impact on test performance, and to describe the current practice of sweat testing in North America. The study analyzed participant summary reports of the SW...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/1099-0496(200012)30:6<476::aid-ppul7>3.0.c
更新日期:2000-12-01 00:00:00
abstract:INTRODUCTION:The mammalian lung possesses the highest level of angiotensin converting enzyme (ACE) amongst all the organs. ACE is known to generate angiotensin (AT)-II from AT-I and to regulate serum bradykinin level, thereby controlling blood pressure. Recent data, however, indicate a role for ACE derived AT-II in ang...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22911
更新日期:2014-10-01 00:00:00
abstract::In 377 children, the commercially available Siregnost FD-5 was used to measure respiratory system resistance (Rrs) by forced oscillation at 10 Hz. The children were between 3 and 18 years of age and, by a detailed questionnaire and conventional pulmonary function testing in 335, they were shown to be representative of...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950100214
更新日期:1991-01-01 00:00:00
abstract:RATIONALE AND OBJECTIVES:Little is known about molecular changes in lungs of fetal rabbits with surgically induced diaphragmatic hernia (DH). Therefore, we examined in this model gene expressions of pivotal molecules for the developing lung. METHODS:At day 23 of gestation, DH was created in 12 fetuses from 4 does. Bot...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22512
更新日期:2012-11-01 00:00:00
abstract::We examined the effects of within-breath changes in compliance (C) upon the accuracy of measurements of compliance and resistance (R) by linear regression analysis and by Mead and Wittenberger's method. These effects were illustrated by a computer model and by lung models with linear and nonlinear pressure/volume rela...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950120304
更新日期:1992-03-01 00:00:00
abstract::Four patients with generalized lymphangiomatosis presenting with chylothoraces are described. All four had bone involvement, two had involvement of the spleen, and one of the pericardium. The diagnosis was confirmed by typical radiology, histology, and in three patients by immunohistochemistry. Treatment was mainly pa...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950140211
更新日期:1992-10-01 00:00:00
abstract:BACKGROUND:Bronchopulmonary dysplasia (BPD) is one of the most common complications in premature infants. Since inflammation plays a crucial role in the pathogenesis of BPD, anti-inflammatory drugs, such as corticosteroids, have long been the focus of prevention research. In this meta-analysis, we aim to explore the lo...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,meta分析
doi:10.1002/ppul.24452
更新日期:2019-11-01 00:00:00
abstract:AIMS:To explore whether gender differences in the Scandinavian Cystic Fibrosis (CF) patients exist in the areas of key clinical parameters, complications, and medication. METHODS:Cross-sectional data on 890 (416 female) pancreatic insufficient CF patients were evaluated regarding chronic infection, body mass index, lu...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21265
更新日期:2010-10-01 00:00:00
abstract::Better growth and nutritional status is strongly associated with better pulmonary function and survival in children with CF. Behavioral intervention is an efficacious treatment approach for improving calorie intake and weight gain in children with CF; and recently has been shown to facilitate maintenance of daily ener...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1002/ppul.21147
更新日期:2010-01-01 00:00:00