PMID- 32140278 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2151-321X (Print) IS - 2151-3228 (Electronic) IS - 2151-321X (Linking) VI - 32 IP - 3 DP - 2019 Sep 1 TI - Factors Associated with Positive Adenosine Challenge Test in Young Children with Suspected Asthma. PG - 103-108 LID - 10.1089/ped.2019.1028 [doi] AB - Background: To investigate the predictive factors associated with positive adenosine monophosphate challenge using the auscultation method (AMP-PCW) test results. Methods: This is a prospective study of young children with suspected asthma who underwent AMP-PCW test. Patients with a positive AMP-PCW test were compared with those with a negative AMP-PCW. A multivariate logistic regression model was performed to identify the independent determinants of positive AMP-PCW. Results: A total of 159 patients completed the AMP-PCW test. The median age was 53 months. In total, 54.0% of patients had a positive AMP-PCW. The prevalence of atopic dermatitis and family history of asthma and allergy were significantly higher among the positive AMP-PCW group (P = 0.04, P = 0.02, and P = 0.007, respectively), as were the prevalences of elevated immunoglobulin E (IgE), peripheral blood eosinophils percentage (P = 0.003, P < 0.001, respectively), and number of emergency department (ED) visits/hospitalizations before AMP-PCW test (P = 0.006). A significant inverse correlation exists between peripheral blood eosinophils percentage and serum IgE levels with the AMP end-point concentrations (r = -0.302, P = 0.001, and r = -0.312, P = 0.001, respectively). In multivariate logistic regression model, peripheral blood eosinophils percentage, IgE levels, and the number of ED visits/hospitalizations before the AMP-PCW test were found as independent predictors for positive AMP-PCW test result. Conclusions: Our results suggest that bronchial responsiveness to AMP-PCW is related to proxy markers of airway inflammation (elevated eosinophils and IgE levels) and clinical exacerbation of asthma before the test. This may support the role of AMP-PCW in detecting inflammatory changes and monitoring their trend among young children with suspected asthma. CI - Copyright 2019, Mary Ann Liebert, Inc., publishers. FAU - Levin, Gabriel AU - Levin G AD - Department of Obstetrics and Gynecology, Hadassah University Medical Center, Jerusalem, Israel. FAU - Cohen, Shlomo AU - Cohen S AD - Institute of Pulmonology, Shaare Zedek Medical Center, Jerusalem, Israel. FAU - Springer, Chaim AU - Springer C AD - Institute of Pulmonology, Hadassah University Medical Center, Jerusalem, Israel. FAU - Avital, Avraham AU - Avital A AD - Institute of Pulmonology, Hadassah University Medical Center, Jerusalem, Israel. FAU - Picard, Elie AU - Picard E AD - Institute of Pulmonology, Shaare Zedek Medical Center, Jerusalem, Israel. FAU - Rottensctreich, Amihai AU - Rottensctreich A AD - Department of Obstetrics and Gynecology, Hadassah University Medical Center, Jerusalem, Israel. LA - eng PT - Journal Article DEP - 20190917 PL - United States TA - Pediatr Allergy Immunol Pulmonol JT - Pediatric allergy, immunology, and pulmonology JID - 101549629 PMC - PMC7057053 OTO - NOTNLM OT - adenosine OT - asthma OT - challenge test OT - hyper-responsiveness OT - wheezing COIS- The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the article. EDAT- 2020/03/07 06:00 MHDA- 2020/03/07 06:01 PMCR- 2020/03/01 CRDT- 2020/03/07 06:00 PHST- 2019/04/08 00:00 [received] PHST- 2019/06/29 00:00 [accepted] PHST- 2020/03/07 06:00 [entrez] PHST- 2020/03/07 06:00 [pubmed] PHST- 2020/03/07 06:01 [medline] PHST- 2020/03/01 00:00 [pmc-release] AID - 10.1089/ped.2019.1028 [pii] AID - 10.1089/ped.2019.1028 [doi] PST - ppublish SO - Pediatr Allergy Immunol Pulmonol. 2019 Sep 1;32(3):103-108. doi: 10.1089/ped.2019.1028. Epub 2019 Sep 17.