Abstract:
:End-tidal PCO2 (PETCO2) measurements from two commercially available neonatal infrared capnometers with different sampling systems and a mass spectrometer were compared with arterial PCO2 (PaCO2) to determine whether the former could predict the latter in mechanically ventilated rabbits with and without lung injury. The effects of tidal volume, ventilator frequency and type of lung injury on the gradient between PETCO2 and PaCO2 (delta P(a-ET)CO2) were evaluated. Twenty rabbits were studied: 10 without lung injury, 5 with saline lavage and 5 with lung injury by meconium instillation. Paired measurements of PETCO2 by two infrared capnometers and a mass spectrometer were compared to PaCO2. In the rabbits without lung injury, the values from the infrared capnometers and mass spectrometer correlated strongly with PaCO2 (r > or = 0.91) despite differences in the slopes of the linear regression between PETCO2 and PaCO2 and in delta P(a-ET)CO2 (P < 0.05). Values from the mainstream IR-capnometer more closely approximated the line of identity than the regression between the sidestream IR-capnometer values or the mass spectrometer and PaCO2, but tended to overestimate PaCO2. The delta P(a-ET)CO2 was similar at all tidal volumes and ventilator frequencies, regardless of capnometer type. In the rabbits with induced lung injury, while there was a positive correlation between the slopes of the regression between PETCO2 and PaCO2 for both capnometers (r > or = 0.70), none of the regression slopes approximated the line of identity. The delta P(a-ET)CO2 was greater in rabbits with injured than noninjured lungs (P < 0.05). The delta P(a-ET)CO2 was similar among capnometers regardless of tidal volume, ventilator frequency, or type of lung injury. The 95% confidence interval of plots PaCO2 against PETCO2 was large for rabbits with injured and noninjured lungs.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Pediatr Pulmonoljournal_title
Pediatric pulmonologyauthors
Hopper AO,Nystrom GA,Deming DD,Brown WR,Peabody JLdoi
10.1002/ppul.1950170309subject
Has Abstractpub_date
1994-03-01 00:00:00pages
189-96issue
3eissn
8755-6863issn
1099-0496journal_volume
17pub_type
杂志文章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::To evaluate the long-term effect of prematurity and/or hyaline membrane disease (HMD) on pulmonary function and airway reactivity, we studied 49 prematurely born children aged 10 to 13 years. They were divided into three groups according to birth weight and HMD status: Groups I and II comprised the children weighing l...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950070412
更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:Recent advances in medicine have allowed children with chronic life-threatening disorders to survive longer than ever before with the use of complex medical device technology (e.g., mechanical ventilation, dialysis, etc.). The care of children with chronic pulmonary disorders and respiratory-technology depend...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23155
更新日期:2015-12-01 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::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::This study was designed to collect data on the prevalence of respiratory syncytial virus (RSV) infection in Italy in infants hospitalized for lower respiratory tract infections, and to evaluate which of the recognized risk factors might be associated with disease severity. Thirty-two centers throughout Italy participa...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,多中心研究
doi:10.1002/ppul.10047
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:Pulmonary function testing is commonly performed for diagnosis and clinical management of respiratory diseases. It is important to use appropriate reference equations from healthy subjects for interpretation of data from infants with lung disease. This study aimed to determine if published reference equation...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24063
更新日期:2018-07-01 00:00:00
abstract::We describe a method for measuring carbon monoxide diffusing capacity (DL(CO)) and alveolar volume (V(A)) in sleeping infants, using a single 4-sec breath-hold technique. The breath-hold maneuver is obtained by inducing a respiratory pause of the respiratory system. Several inflations of the respiratory system with ro...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20403
更新日期:2006-06-01 00:00:00
abstract::We conducted a survey to determine parent-reported asthma prevalence, morbidity, and healthcare utilization among 3527 children attending public schools (n = 2849) and private schools (n = 678) in San Juan, Puerto Rico. Schools were randomly selected from each of 12 geographic regions of the San Juan metropolitan area...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20022
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:Several studies have shown that exposure to air pollutants affects lung growth and development and can result in poor respiratory health in early life. METHODS:We included a subsample of 772 Mexican preschoolers whose mothers participated in a Prenatal Omega-3 fatty acid Supplements, GRowth, And Development...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24889
更新日期:2020-08-01 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::Lower respiratory tract infections (LRTI) are common in the first year of life and are mostly caused by viruses. Severity of LRTI in infants is associated with early-life environmental factors. Genetic association studies also suggest a role of heredity in susceptibility to acute bronchiolitis. We designed a case cont...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20069
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Lung involvement in children with Niemann-Pick disease has rarely been studied systematically. OBJECTIVE:To assess the involvement of the lung and the value of bronchoalveolar lavage in children with Niemann-Pick diseases. DESIGN:Retrospective analysis of patient records. PATIENTS:Thirteen patients, with ...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20725
更新日期:2007-12-01 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::The consequences of poor quality and/or inadequate sleep in children and adolescents have become a major public health concern, and one in which pediatric health care professionals have become increasingly involved. In particular, insufficient and/or fragmented sleep resulting from primary sleep disorders such as obst...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.20981
更新日期:2009-05-01 00:00:00
abstract::Epidemiological data suggest that respiratory syncytial virus (RSV) infection in early life is a risk factor for later asthma. There are no prospective studies on RSV infection starting from infancy progressing through childhood into adulthood. We followed up a cohort of children, hospitalized for RSV bronchiolitis or...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20058
更新日期:2004-08-01 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:BACKGROUND/AIM:There has been recent interest in dry powder inhaled mannitol as a therapeutic agent in patients with cystic fibrosis (CF). It is has been shown to increase mucociliary clearance (MCC) by rehydrating the airway. To date there have been no studies exclusively in children with CF examining the effect of dr...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20903
更新日期:2008-11-01 00:00:00
abstract::Our objective was to study meconium-induced lung injury in isolated perfused rat lungs exposed to anoxia. Our working hypothesis was that meconium-induced lung injury is independent of preexisting hypoxia, and that hypoxia will increase severity of lung injury observed after meconium aspiration. We compared five diffe...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.20123
更新日期:2005-04-01 00:00:00
abstract::There is no consensus about reproducibility and reliability of spirometry in young children. We evaluated forced expiratory maneuvers from 98 children aged 3 to 5 years with a variety of respiratory disorders before and after bronchodilator treatment. Forced vital capacity (FVC) and forced expiratory volume in 1 sec (...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.1950180305
更新日期:1994-09-01 00:00:00
abstract:OBJECTIVE:While pulmonary arterial hypertension (PAH) is rare in infants and children, it results in substantial morbidity and mortality. In recent years, prognosis has improved, coinciding with the introduction of new PAH-targeted therapies, although much of their use in children is off-label. Evidence to guide the tr...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,评审
doi:10.1002/ppul.24442
更新日期:2019-10-01 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: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::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:BACKGROUND:How pediatricians manage bronchiolitis and the derived total costs (direct and indirect) in the emergency department (ED) have not been fully characterized. The aim of the present study is to calculate those costs in a European country. METHODS:A prospective and observational study, including 10 EDs of tert...
journal_title:Pediatric pulmonology
pub_type: 杂志文章,多中心研究
doi:10.1002/ppul.22906
更新日期:2014-10-01 00:00:00
abstract::Plasminogen deficiency is characterized by fibrin-rich pseudomembrane formation on all mucosal surfaces, particularly the conjunctiva. Respiratory system involvement is common; fibrin often obstructs the upper or lower respiratory tract, causing death. Although many treatments have been applied, no definitive treatmen...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24563
更新日期:2020-01-01 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:BACKGROUND:Population-based studies investigating health-related quality of life (HRQoL) among asthmatic adolescents are rare. Further, among subjects with asthma, HRQoL may be affected by asthma control and severity. AIM:To investigate HRQoL in relation to asthma control and asthma severity among adolescents. METHOD...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.23723
更新日期:2017-07-01 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:OBJECTIVES:We sought to describe the phenotype for patients with P.I.G. including presentation, evaluation, cardiac co-morbidities, high resolution computed tomography findings, and outcomes. METHODS:With institutional review board approval, we performed a retrospective review of patients with biopsy-proven P.I.G. Bio...
journal_title:Pediatric pulmonology
pub_type: 杂志文章
doi:10.1002/ppul.24123
更新日期:2018-12-01 00:00:00