Abstract:
:Breath tests (BT) using stable isotopically labelled substrates seem to fulfill all the demands and desires for a non-invasive investigation. There are no radiation hazards, substrates are given in tracer amounts perorally, breath and urine samples can be collected easily, and tests can be done repeatedly, thus easily allowing the monitoring of function with time. There are, however, some disadvantages. Any BT has the same assumption: after intake of the 13C tracer the substrate is metabolized to 13CO2. An increase of 13CO2 above baseline levels is said to reflect the function investigated-in 13C sucrose studies, the amount of carbohydrate absorbed; in 13C aminopyrine BT, the liver function; in 13C glucose BT in a diabetic child, the impaired handling of glucose. However, as only the end product 13CO2 is measured, there is no information on all the pools and fluxes the labelled substrate and its metabolites have to pass. At least in inborn errors of metabolism, probably in any disease, one has to assume that these fluxes and pools are substantially changed. Therefore all calculations are weak and finally one has to resort to invasive methods, i.e. drawing blood to measure pools and fluxes to allow a correct interpretation of the BT data. Furthermore, changes in the basal exhalation of 13CO2 during the test will have an impact on the BT calculation. Another problem is that for an exact calculation, the basal metabolic rate (BMR) and the actual endogenous CO2 production in the patient is needed, which in most instances is unknown. It is not easy to maintain a stable endogenous CO2 production, particularly in younger children who will not rest or in neonates and toddlers who may fight against taking breath samples. Taking together these limitations are the reason why BT have not been able to reach the level of routine clinical methods, especially in the diagnostic work up of impaired liver function or inborn errors of metabolism.
journal_name
Eur J Pediatrjournal_title
European journal of pediatricsauthors
Rating D,Langhans CDdoi
10.1007/pl00014264subject
Has Abstractpub_date
1997-08-01 00:00:00pages
S18-23eissn
0340-6199issn
1432-1076journal_volume
156 Suppl 1pub_type
杂志文章,评审abstract:UNLABELLED:Monitoring of therapy-related late effects after acute lymphoblastic leukaemia (ALL) therapy in childhood has become an increasingly important field in posttherapeutic patient surveillance. The usefulness of neurophysiological investigations (e.g. EEG, evoked potentials (EP)) as part of these attempts is con...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s004310050700
更新日期:1997-09-01 00:00:00
abstract::The daily excretion of C-peptide in the urine was measured in 105 healthy infants and children from birth to 14 years of age. For technical reasons no studies were performed from 1-3 years of age. The excretion of C-peptide showed a close positive correlation with age and weight. The relationship with weight was alrea...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF00442133
更新日期:1985-01-01 00:00:00
abstract::The molecular polymorphism and quantitative levels of serum vitamin D-binding protein (DBP) were ascertained in a group of preterm, full-term and hypocalcaemic full-term newborn infants. The serum concentration of DBP is not influenced by phenotype and increases with fetal age from the 32nd-33rd week of gestation unti...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF00451946
更新日期:1985-09-01 00:00:00
abstract:INTRODUCTION:Population modelling using mixed-effects models provides a means to study variability in drug responses among individuals representative of those for whom the drug will be used clinically. DISCUSSION:The advantages of these models in paediatric studies are that they can be used to analyse sparse data, sam...
journal_title:European journal of pediatrics
pub_type: 杂志文章,评审
doi:10.1007/s00431-006-0188-y
更新日期:2006-11-01 00:00:00
abstract:UNLABELLED:The inherited ion channel disorders (channelopathies) are a group of disorders caused by mutations in genes encoding ion channels. Ion channel disorders can affect any tissue, but the majority affect skeletal muscle or the central nervous system. These disorders include skeletal muscle sodium channelopathies...
journal_title:European journal of pediatrics
pub_type: 杂志文章,评审
doi:10.1007/pl00014403
更新日期:2000-12-01 00:00:00
abstract::Twelve preterm infants, median gestational age 31.5 weeks, were entered into a randomised, placebo-controlled trial of bronchodilator therapy. Their postnatal age was a median of 17.5 months and all suffered from recurrent respiratory symptoms. The infants received either inhaled placebo or 40 micrograms of ipratropiu...
journal_title:European journal of pediatrics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF01955008
更新日期:1991-10-01 00:00:00
abstract::Iron deficiency anaemia continues to be the world's most important cause of years lived with disability in children and adolescents. Assessment of iron deficiency traditionally depended on laboratory parameters that may be modified by inflammation states, including obesity, which is nowadays a current condition in ado...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-020-03651-2
更新日期:2020-10-01 00:00:00
abstract::IgG subclass levels were determined in 448 normal children from 6 months to 18 years of age and in 141 healthy adults by radial immunodiffusion using monoclonal antibodies. Age-normal percentile values were calculated for each year of age up to 18 years for IgG1, IgG2, IgG3 and in adults for all four subclasses. The b...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF01958271
更新日期:1989-12-01 00:00:00
abstract::Female patients with congenital adrenal hyperplasia have been frequently studied in order to determine the impact of prenatal androgen exposure on various aspects of psychological, psychosocial and psychosexual development. There is no published study to evaluate the impact of the genital malformation, genital operati...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF02276713
更新日期:1995-09-01 00:00:00
abstract::Chronic lung disease of prematurity (CLD) is a common respiratory disorder of preterm infants. At autopsy, fibroblast proliferation, and components of the extracellular matrix, including collagen and fibronectin, are markedly increased in the lungs of infants who die from CLD. Examination of broncho-alveolar fluid sug...
journal_title:European journal of pediatrics
pub_type: 杂志文章,评审
doi:10.1007/BF01958074
更新日期:1996-08-01 00:00:00
abstract::We report a 28-day-old female infant with pertussis presenting as severe acute bronchiolitis with cyanosis. On admission, the patient's symptoms were similar to those of acute bronchiolitis. However, occasional apneic episodes with cyanosis and peripheral lymphocytosis suggested neonatal pertussis and prompted us to e...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-008-0744-8
更新日期:2009-03-01 00:00:00
abstract:PURPOSE:The study investigated the television watching habits of children in hospital compared with those at home and the factors which influence them. METHODS:A random sample of 546 school aged children hospitalized in paediatric hospitals (2) in Athens (Greece) was studied. RESULTS:Children's television watching ti...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-006-0166-4
更新日期:2006-11-01 00:00:00
abstract::Comprehensive data on 30 patients with propionic acidaemia, diagnosed by selective screening for inborn errors of metabolism, are presented. The most valuable diagnostic metabolites found were methylcitric-, 3-hydroxypropionic-, and 2-methyl-3-oxovaleric acids. Hyperlysinaemia and hyperlysinuria are also characteristi...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF02138781
更新日期:1994-01-01 00:00:00
abstract::High food quality, together with adequate macro- and micronutrient intake in pregnancy, is crucial for the health status of the mother and child. Recent findings suggest that it could also be beneficial or harmful in the context of the well-being of the whole future population. According to the developmental origins o...
journal_title:European journal of pediatrics
pub_type: 杂志文章,评审
doi:10.1007/s00431-017-3026-5
更新日期:2017-12-01 00:00:00
abstract::The etiology of asthma includes lifestyle factors. Breastfeeding and introduction of complementary foods have been suggested to affect asthma risk, but the scientific foundation is not solid. Children from the birth cohort All Babies In Southeast Sweden study were included (n = 9727). Breastfeeding duration and timing...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-018-03312-5
更新日期:2019-03-01 00:00:00
abstract::The aim of this study was to assess the influence of active and passive maternal smoking on placenta total oxidant/antioxidant status in term infants. The levels of cord blood total antioxidant capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) were measured in samples of fetal placental tiss...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-010-1338-9
更新日期:2011-05-01 00:00:00
abstract::Inflammatory bowel disease (IBD) is a cause of chronic intestinal inflammation in children. In a subset of patients affected by IBD, arthropathy may be the leading presenting sign. In the past years, remarkable advances in gastrointestinal endoscopy techniques have been achieved; recently, the development of capsule e...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-011-1505-7
更新日期:2011-10-01 00:00:00
abstract:UNLABELLED:We studied the clinical and biochemical factors associated with surfactant dysfunction and factors affecting the responsiveness to exogenous surfactant among 27 neonates with haemorrhagic pulmonary oedema (HPE). HPE was defined as the presence of a large amount of blood-stained lung effluent and respiratory ...
journal_title:European journal of pediatrics
pub_type: 杂志文章,多中心研究
doi:10.1007/s00431-003-1276-x
更新日期:2003-10-01 00:00:00
abstract::Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disorder and the most disabling condition of heterotopic (extraskeletal) ossification in humans. Extraskeletal bone formation associated with inflammation preceding the osseous conversion usually begins in the first decade, predominantly in the head, neck, ...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-010-1232-5
更新日期:2010-11-01 00:00:00
abstract::Blunt cardiac injury may occur in patients after suffering nonpenetrating trauma of the chest. It encompasses a wide spectrum of cardiac injury with varied severity and clinical presentation. Electrocardiographic abnormalities are frequently encountered. This article presents a case of a child who presented with compl...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-007-0663-0
更新日期:2008-11-01 00:00:00
abstract:UNLABELLED:Neurological complications of immunizations are rare. We report the case of relapsing acute encephalitis in a boy after two subsequent diphtheria-tetanus-poliomyelitis vaccinations. First the clinical signs were those of acute disseminated encephalitis. During the second episode, the boy experienced optic ne...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF02075768
更新日期:1996-02-01 00:00:00
abstract:UNLABELLED:There are a number of respiratory diseases affecting infants in which there is surfactant dysfunction or deficiency. Surfactant is inactivated by cholesterol, free fatty acids and bilirubin in meconium aspiration syndrome, by haemoglobin and red blood cell lipids in pulmonary haemorrhage and plasma proteins ...
journal_title:European journal of pediatrics
pub_type: 杂志文章,评审
doi:10.1007/pl00008398
更新日期:2000-09-01 00:00:00
abstract::A benign cystic nephroblastoma in a 6-month-old boy is presented. Erroneous interpretation as malignant nephroblastoma led to unnecessarily aggressive therapy. There is no evidence of recurrence or metastatic disease 12 years after the initial resection. As shown in our case and in the others previously reported in th...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF00447474
更新日期:1979-05-18 00:00:00
abstract::We describe a patient with leucocyte adhesion deficiency (LAD). Clinically, the patient had delayed umbilical cord detachment, omphalitis, impaired wound healing and persistent leucocytosis. The patient had the severe form of LAD, with a total absence of leucocyte cell adhesion molecules (LeuCAMs) and undetectable mRN...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF01958952
更新日期:1992-02-01 00:00:00
abstract::GB virus C (GBV-C) is a blood-borne flavivirus. The prevalence of GBV-C viremia among healthy adults is 0.5% to 4% and, to date, no disease has been definitely associated with GBV-C infection. We conducted a cross-sectional study to evaluate GBV-C viremia prevalence in a group of 327 healthy children with normal alani...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-007-0624-7
更新日期:2008-09-01 00:00:00
abstract::Forty-five children (25 girls; 20 boys) with meningomyelocele (MMC) were assessed for growth, skeletal maturation and pubertal development. The spinal defects were operated on shortly after birth and all children required cerebral drainage for hydrocephalus. Standard deviation scores for height, sitting height, sub-is...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF00451900
更新日期:1985-07-01 00:00:00
abstract:UNLABELLED:Although bacterial colonisation of bronchi may occur from early childhood onwards, infections extending beyond the lungs are uncommon in patients with cystic fibrosis. A 12-year-old boy with cystic fibrosis, receiving oral corticosteroids for 3 weeks because of allergic bronchopulmonary aspergillosis, experi...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/pl00008408
更新日期:2000-09-01 00:00:00
abstract::Mid-aortic syndrome is characterized by narrowing of the abdominal aorta, usually with the involvement of renal arteries and other visceral branches. The combination of the presence of an abdominal bruit, diminished or absent pulsations of the lower extremities, and a blood pressure discrepancy between upper and lower...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-012-1800-y
更新日期:2013-03-01 00:00:00
abstract::Recombinant interleukin 2 (rIL2) was administered to a patient with Wiskott-Aldrich syndrome for the treatment of an intractable facial herpetiform lesion. This treatment appeared to be effective in suppressing the virus activity. At the same time, a transient improvement of the chronic eczematoid dermatitis was obser...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/BF01957224
更新日期:1993-12-01 00:00:00
abstract::Acute urinary tract infection (UTI) is the most common bacterial infection in childhood. Although hyponatremia was described in ~ 2/3 of these children, its clinical significance is still unclear. Herein, we evaluated the prevalence and clinical implications of hyponatremia in children hospitalized with a UTI. Medical...
journal_title:European journal of pediatrics
pub_type: 杂志文章
doi:10.1007/s00431-020-03808-z
更新日期:2020-09-19 00:00:00