Abstract:
:Polyvinyl chloride (PVC) nasogastric feeding catheters are used clinically to measure intraesophageal pressure as an estimate of pleural pressure for calculating lung compliance in infants. The accuracy of pressure measurement of 4 French gauge (FG) catheter sizes and three brands of liquid-filled catheter manometer systems (CMS) was evaluated by determining their resonance-frequency amplitude and phase properties. All CMS were underdamped and resonated. No CMS exhibited a uniform mean frequency response above 11 Hz. The maximum respiratory rate (Frr) within which CMS could potentially measure dynamic intraesophageal pressure within a 5% error limit was determined (Frr): the highest mean Frr recorded reliably in large-diameter catheters was 82 breaths/min. Significant CMS differences in accuracy existed between catheter FG sizes and between catheters of similar diameters but differing brands. Correlation (r2) between catheter inner diameter and CMS Frr was 0.66 across brands. In conclusion, intraesophageal PVC liquid-filled feeding catheters are suitable for estimating pleural pressures in subjects mechanically ventilated without sharp inspiratory waveforms or high respiratory rates. Quantitative frequency response characterization of different nasogastric catheter brands and different diameters is mandatory prior to their utilization.
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Hartford CG,Rogers GG,Turner MJdoi
10.1002/(sici)1099-0496(199705)23:5<362::aid-ppul8subject
Has Abstractpub_date
1997-05-01 00:00:00pages
362-9issue
5eissn
8755-6863issn
1099-0496pii
10.1002/(SICI)1099-0496(199705)23:5<362::AID-PPUL8journal_volume
23pub_type
杂志文章abstract:BACKGROUND:In 1995 the Tucson Children's Respiratory Study (TCRS) identified clinically distinct phenotypes amongst early wheezers; the Avon Longitudinal Study of Parents And Children (ALSPAC) has recently re-examined these. OBJECTIVES:To validate statistically derived ALSPAC phenotypes in the Southampton Women's Surv...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22766
更新日期:2013-07-01 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:RATIONALE:Secondhand smoke (SHS) has deleterious respiratory, immune, and nutritional effects in children, but there is little data regarding the effects of SHS exposure in infants with cystic fibrosis (CF). METHODS:A retrospective chart review was undertaken from 2008 to 2012 of 75 infants with CF. Growth, lung funct...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23016
更新日期:2015-01-01 00:00:00
abstract::Measurements of thoracic gas volume (TGV), airway resistance (Raw), and airway conductance (Gaw) were calculated in a group of 42 normal infants using a whole-body plethysmograph. Maximum expiratory flow at functional residual capacity was measured in a separate group of 108 normal infants. Using data obtained from th...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950140303
更新日期:1992-11-01 00:00:00
abstract:OBJECTIVES:Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infections worldwide, causing disproportionate morbidity and mortality in infants and children. Infants with stronger Th1 responses have less severe disease, yet little is known about the infant T-cell response within the air spa...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23911
更新日期:2018-02-01 00:00:00
abstract::Wheezing is the most widely reported adventitious lung sound in the English language. It is recognized by health professionals as well as by lay people, although often with a different meaning. Wheezing is an indicator of airway obstruction and therefore of interest particularly for the assessment of young children an...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.23930
更新日期:2018-02-01 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::The value of exercise testing as an objective measure of disease severity in patients with chronic chest diseases (CCD) is becoming increasingly recognized. The aim of this study was to investigate changes in oxygen uptake (VO2) during early recovery following maximal cardiopulmonary exercise testing (CPXT) in relatio...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21024
更新日期:2009-05-01 00:00:00
abstract::We determined lung function at age 10 years in very low birthweight (VLBW, journal_title:Pediatric pulmonology pub_type: 杂志文章 doi:10.1002/ppul.20662 更新日期:2007-09-01 00:00:00
abstract::In order to help specialists involved in CF care and clinical research to know the current best evidence about clinical effectiveness of interventions in CF, we designed and developed a web-based, free access tool called "CFDB"--Cystic Fibrosis DataBase (www.inetflow.it/CFDB). The database was built by searching in Me...
journal_title:Pediatric pulmonology
pub_type: 信件
doi:10.1002/ppul.22954
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:Magnetic Resonance Imaging (MRI) techniques to image the larynx have evolved rapidly into a promising and safe imaging modality, without need for sedation or ionizing radiation. MRI is therefore of great interest to image pediatric laryngeal diseases. Our aim was to review MRI developments relevant for the p...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24250
更新日期:2019-04-01 00:00:00
abstract::Phrenic nerve paralysis is a condition typically occurring after invasive procedures in the chest and neck. Here we describe a case of transient unilateral diaphragmatic paralysis in a child with status asthmaticus complicated by complete right lung atelectasis. Common causes of this disorder and possible implications...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20040
更新日期:2004-09-01 00:00:00
abstract::Assessment of dynamic inspiratory function may provide valuable information about the degree and progression of pulmonary involvement in patients with Duchenne muscular dystrophy (DMD). The aims of this study were to characterize inspiratory function and to assess the efficacy of idebenone on this pulmonary function o...
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.23547
更新日期:2017-04-01 00:00:00
abstract::C-reactive protein (CRP) concentrations were evaluated in 9 cystic fibrosis (CF) patients with acute pulmonary exacerbations and 14 patients with acute exacerbations of asthma without any symptoms of an acute infection. CRP concentrations were serially evaluated over the course of therapy in CF patients and compared w...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950200403
更新日期:1995-10-01 00:00:00
abstract::A microbe-specific diagnosis in community-acquired pneumonia (CAP) is difficult in children, and studies on nonspecific chest radiographic and host response markers have been inconsistent. Serum procalcitonin (PCT) is a newly recognized, promising marker for differentiating between bacterial and viral infections. Seru...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.10201
更新日期:2003-01-01 00:00:00
abstract::The effect of viral infection on nasopharyngeal carriage of Streptococcus pneumoniae during childhood is not well known. We studied dynamics of pneumococcal colonization by quantitative PCR during the natural course of viral bronchiolitis. At time of admission, 47 (47%) of 100 patients with bronchiolitis carried pneum...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23390
更新日期:2016-08-01 00:00:00
abstract:UNLABELLED:Very low birth weight (VLBW) infants, even those without bronchopulmonary dysplasia (BPD) are at risk for pulmonary morbidity during infancy. Although some studies have found an association between the level of neonatal oxygen exposure and later morbidity, others have not. A possible explanation for these in...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21199
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVES:To develop reference equations of maximal voluntary ventilation (MVV) in children and adolescents, and to test the validity and reproducibility of MVV. STUDY DESIGN:Cross-sectional study. PATIENT-SUBJECT SELECTION:A total of 348 healthy volunteers (6-17 years)-248 for the development of reference equations...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24576
更新日期:2020-02-01 00:00:00
abstract::This paper assesses the effectiveness of aerosolized tobramycin (TOBI) on cystic fibrosis (CF) lung disease, using a radiologic tool. The published tool, the age-based severity curve (ABS), is derived from Brasfield scoring of chest X-rays (CXR). This study evaluates both the usefulness of the ABS as an assessment too...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20032
更新日期:2004-07-01 00:00:00
abstract::Campomelic dysplasia is a generalized disorder of cartilaginous growth and development, leading to early death from pulmonary insufficiency. We describe the airway dynamics as observed bronchoscopically in two affected infants. Both infants demonstrated anatomic compromise of the upper airway and diffuse laryngotrache...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950030514
更新日期:1987-09-01 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
abstract::Respiratory system compliance (Crs) can be used to assess lung stiffness in sick, intubated infants, avoiding the use of an esophageal balloon. Crs was assessed in a group of 15 sick, intubated infants using the occlusion and inflation techniques. The occlusion technique gave satisfactory results in 13 infants. Apneic...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950030207
更新日期:1987-03-01 00:00:00
abstract:INTRODUCTION:Lung disease in cystic fibrosis (CF) begins early in life but the capabilities for detecting abnormalities of pulmonary dysfunction in children remain limited. OBJECTIVE:The study aimed to evaluate the early progression of lung function by the analysis of pulmonary hyperinflation, ventilation inhomogeneit...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.25013
更新日期:2020-11-01 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::Ten infants with evidence of impending respiratory failure from severe bronchiolitis were successfully treated with continuous positive airway pressure (NCPAP) with double nasal prongs. Their mean (SD) age was 6.7 (3.8) months and mean (SD) body weight was 7.1 (2.1) kg. Respiratory assessments were made immediately be...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章
doi:10.1002/ppul.1950160305
更新日期:1993-09-01 00:00:00
abstract:AIM:To analyze breathing pattern and mechanical ventilatory constraints during incremental exercise in healthy and cystic fibrosis (CF) children. METHODS:Thirteen healthy children and 6 children with cystic fibrosis volunteered to perform an incremental test on a treadmill. Exercise tidal flow/volume loops were plotte...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.22804
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE:Methicillin-resistant Staphylococcus aureus (MRSA) infections in cystic fibrosis (CF) patients have greatly increased in prevalence in the past two decades and may lead to a more rapid rate of lung function decline. The objective of this study was to determine the impact of a MRSA eradication protocol on long...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24628
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:To develop and validate a questionnaire to assess asthma control in children (CAN). DESIGN:Two versions of the CAN (for carers and children) were developed. Both versions were validated in an observational, prospective, multicenter study performed in 38 hospital outpatient clinics throughout Spain. Four hund...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20929
更新日期:2009-01-01 00:00:00
abstract::The efficacy and tolerability of high-dose salmeterol (100 mcg, BID) and albuterol (2.5 mg, BID) were compared with those of albuterol (2.5 mg, BID) in outpatients with cystic fibrosis in a randomized, double-blind, double-dummy, placebo-controlled, crossover study with both short- (4 weeks of each) and long-term (24 ...
journal_title:Pediatric pulmonology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/ppul.10162
更新日期:2002-10-01 00:00:00
abstract::Prenatal cigarette smoke (CS) exposure, in combination with hypoxia and/or hyperthermia can lead to gasping and attenuated recovery from hypoxia in 7 days old rat pups. We studied 95 unanesthetized spontaneously breathing 14 days old rat pups to investigate if the destabilizing effects of increased ambient temperature...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.21578
更新日期:2012-05-01 00:00:00