Factors predicting persistence of early wheezing through childhood and adolescence: a systematic review of the literature
Authors Rodriguez-Martinez CE, Sossa-Briceño MP, Castro-Rodriguez JA
Received 21 November 2016
Accepted for publication 15 February 2017
Published 27 March 2017 Volume 2017:10 Pages 83—98
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 2
Editor who approved publication: Dr Amrita Dosanjh
Carlos E Rodríguez-Martínez,1,2 Monica P Sossa-Briceño,3 Jose A Castro-Rodriguez4
1Department of Pediatrics, School of Medicine, Universidad Nacional de Colombia, Bogota, Colombia; 2Department of Pediatric Pulmonology and Pediatric Critical Care Medicine, School of Medicine, Universidad El Bosque, Bogota, Colombia; 3Department of Internal Medicine, School of Medicine, Universidad Nacional de Colombia, Bogota, Colombia; 4Division of Pediatrics, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
Background: For the early identification of persistent asthma symptoms among young children with recurrent wheezing, it would be helpful to identify all available studies that have identified at least one factor for predicting the persistence of early wheezing. The objective of the present study was to perform a systematic review of all studies that have identified factors that predict the persistence of symptoms among young patients with recurring wheezing.
Methods: A systematic review of relevant studies was conducted through searching in MEDLINE, EMBASE, CINHAL, and SCOPUS databases up to June 2016. Studies that identified predictors of persistence of wheezing illness among young children with recurrent wheezing were retrieved. Two independent reviewers screened the literature and extracted relevant data.
Results: The literature search returned 649 references, 619 of which were excluded due to their irrelevance. Five additional studies were identified from reference lists, and 35 studies were finally included in the review. Among all the identified predictors, the most frequently identified ones were the following: family asthma or atopy; personal history of atopic diseases; allergic sensitization early in life; and frequency, clinical pattern, or severity of wheezing/symptoms.
Conclusion: Parental asthma (especially maternal), parental allergy, eczema, allergic rhinitis, persistent wheezing, wheeze without colds, exercise-induced wheeze, severe wheezing episodes, allergic sensitization (especially polysensitization), eosinophils (blood or eosinophil cationic protein in nasal sample), and fraction of exhaled nitric oxide were risk factors predicting persistence of early wheezing through school age. All of them are included in conventional algorithms, for example, Asthma Predictive Index and its modifications, for predicting future asthma.
Keywords: birth cohort, infantile asthma, longitudinal studies, persistence, continuance, prognosis
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