Evidence map›Paper›PMID 23199600›Full record

ArticleThe Journal of allergy and clinical immunology2013

Assessment of airflow limitation, airway inflammation, and symptoms during virus-induced wheezing episodes in 4- to 6-year-old children.

George N Konstantinou, Paraskevi Xepapadaki, Emmanuel Manousakis, Heidi Makrinioti, Kalliopi Kouloufakou-Gratsia, Photini Saxoni-Papageorgiou, Nikolaos G Papadopoulos

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of allergy and clinical immunology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Trial
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  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Coarse Fraction Particle Matter and Exhaled Nitric Oxide in Non-Asthmatic Children.International journal of environmental research and public health · 2016
    Article
  12. Article
  13. Advances in pediatric asthma in 2013: coordinating asthma care.The Journal of allergy and clinical immunology · 2014
    Article
  14. Article
  15. Infection-related asthma.The journal of allergy and clinical immunology. In practice
    Review
  16. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

George N KonstantinouDepartment of Allergy and Clinical Immunology, 424 General Military Training Hospital, Thessaloniki, Greece. gnkonstantinou@gmail.com
Paraskevi Xepapadaki
Emmanuel Manousakis
Heidi Makrinioti
Kalliopi Kouloufakou-Gratsia
Photini Saxoni-Papageorgiou
Nikolaos G Papadopoulos
National and Kapodistrian University of Athens · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is disputed whether recurrent episodes of wheeze in preschool-aged children comprise a distinct asthma phenotype.

objectiveWe sought to prospectively assess airflow limitation and airway inflammation in children 4 to 6 years old with episodic virus-induced wheeze.

methodsNinety-three children 4 to 6 years old with a history of mild, virus-induced episodes of wheeze who were able to perform acceptable fraction of exhaled nitric oxide (Feno) maneuvers and spirometry (with forced expiratory time ≥0.5 seconds) were followed prospectively. Lung function and Feno values were measured every 6 weeks (baseline) within the first 48 hours of an acute wheezing episode (day 0) and 10 and 30 days later. Symptom scores and peak flow measurement were recorded daily.

resultsForty-three children experienced a wheezing episode. At day 0, Feno values were significantly increased, whereas forced expiratory volume at 0.5 seconds (FEV(0.5)) significantly decreased compared with baseline (16 ppb [interquartile range {IQR}, 13-20 ppb] vs 9 ppb IQR, 7-11 ppb] and 0.84 L [IQR, 0.75-0.99 L] vs 0.99 L [IQR, 0.9-1.07 L], respectively; both P < .001). Airflow limitation at day 0 was reversible after bronchodilation. FEV(0.5) and Feno values were significantly associated with each other and with lower and upper respiratory tract symptoms when assessed longitudinally but not cross-sectionally at all time points independently of atopy. Feno and FEV(0.5) values returned to baseline levels within 10 days.

conclusionsMild episodes of wheeze in preschoolers are characterized by enhanced airway inflammation, reversible airflow limitation, and asthma-related symptoms. Feno values increase significantly during the first 48 hours and return to personal baseline within 10 days from the initiation of the episode. Longitudinal follow-up suggests that symptoms, inflammation, and lung function correlate well in this phenotype of asthma.

Indexed as

ExhalationChildChild, PreschoolFemaleForced Expiratory VolumeHumansInflammationLongitudinal StudiesMaleReproductive Tract InfectionsRespiratory SoundsSpirometry

Identifiers

PMID23199600
PMCPMC7112251
OpenAlexW2125256646

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.