PMID- 30667530 OWN - NLM STAT- MEDLINE DCOM- 20200608 LR - 20200608 IS - 1398-9995 (Electronic) IS - 0105-4538 (Linking) VI - 74 IP - 6 DP - 2019 Jun TI - Safety and reproducibility of nasal allergen challenge. PG - 1125-1134 LID - 10.1111/all.13728 [doi] AB - BACKGROUND: The nasal allergen challenge (NAC) is a useful tool for the diagnosis of allergic rhinitis (AR) and local allergic rhinitis (LAR) and might serve to design and monitor allergen immunotherapy. Nevertheless, data about its safety and reproducibility are scarce. OBJECTIVE: To investigate the safety and reproducibility of NAC in pediatric and adult rhinitis patients with/without asthmatic symptoms, and in healthy controls. METHODS: A retrospective evaluation of the NACs conducted in our Unit for 2005-2017 and monitored by acoustic rhinometry and nasal-ocular symptoms was performed to analyze the safety of two methods for allergen application (metered spray & micropipette) and NAC protocols (NAC with single or multiple allergens/session [NAC-S & NAC-M]). The adverse events (AEs), spirometry values, and rescue medication required for AE were recorded. The reproducibility was examined by a prospective analysis of three repeated NAC-S performed at 1-2-month interval in AR, LAR and nonallergic rhinitis patients, and in healthy controls. RESULTS: A total of 11 499 NACs were performed in 518 children and 5830 adults. Only four local AE occurred, and 99.97% of NACs were well tolerated. The reproducibility and positive and negative predictive values of three consecutive NAC-S performed in 710 subjects were 97.32%, 100%, and 92.91%, respectively. There were no false-positive results in the 710 analyzed subjects. Safety and reproducibility were comparable between the methods of allergen application and the rhinitis phenotypes. CONCLUSION: The NAC is a safe and highly reproducible diagnostic test ready to be used in the clinical practice in both children and adults with or without asthma. CI - (c) 2019 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd. FAU - Eguiluz-Gracia, Ibon AU - Eguiluz-Gracia I AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Testera-Montes, Almudena AU - Testera-Montes A AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Gonzalez, Miguel AU - Gonzalez M AUID- ORCID: 0000-0001-8912-6619 AD - Research Laboratory-Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Perez-Sanchez, Natalia AU - Perez-Sanchez N AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Ariza, Adriana AU - Ariza A AD - Research Laboratory-Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Salas, Maria AU - Salas M AUID- ORCID: 0000-0002-0583-9492 AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Moreno-Aguilar, Carmen AU - Moreno-Aguilar C AD - Immunology and Allergy Unit, IMIBIC-Hospital Regional Universitario Reina Sofia-ARADyAL, Cordoba, Spain. FAU - Campo, Paloma AU - Campo P AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Torres, Maria Jose AU - Torres MJ AUID- ORCID: 0000-0001-5228-471X AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. FAU - Rondon, Carmen AU - Rondon C AUID- ORCID: 0000-0003-0976-3402 AD - Allergy Unit, IBIMA-Hospital Regional Universitario de Malaga-ARADyAL, UMA, Malaga, Spain. LA - eng GR - ARADyAL RD 16/00006/0018/Instituto de Salud Carlos III/International GR - ARADyAL RD16/0006/000/Instituto de Salud Carlos III/International GR - CD17/0146/Instituto de Salud Carlos III/International GR - CM17/00140/Instituto de Salud Carlos III/International GR - CM17/00141/Instituto de Salud Carlos III/International GR - FIS PI12/00900/Instituto de Salud Carlos III/International GR - FIS PI14/0864/Instituto de Salud Carlos III/International GR - FIS PI17/01410/Instituto de Salud Carlos III/International GR - RiRAAF RD07/0064/Instituto de Salud Carlos III/International GR - ARADyAL RD 16/00006/0018/European Regional Development Fund/International GR - ARADyAL RD16/0006/000/European Regional Development Fund/International GR - RiRAAF RD07/0064/European Regional Development Fund/International PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190220 PL - Denmark TA - Allergy JT - Allergy JID - 7804028 RN - 0 (Allergens) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Allergens/administration & dosage/*immunology MH - Asthma/diagnosis MH - Bronchial Spasm/etiology MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Male MH - Middle Aged MH - Nasal Provocation Tests/*adverse effects/*methods MH - Prospective Studies MH - Reproducibility of Results MH - Retrospective Studies MH - Rhinitis, Allergic/*diagnosis MH - Rhinometry, Acoustic MH - Young Adult OTO - NOTNLM OT - local allergic rhinitis OT - nasal allergen challenge OT - reproducibility OT - safety EDAT- 2019/01/23 06:00 MHDA- 2020/06/09 06:00 CRDT- 2019/01/23 06:00 PHST- 2018/11/09 00:00 [received] PHST- 2018/12/19 00:00 [revised] PHST- 2018/12/27 00:00 [accepted] PHST- 2019/01/23 06:00 [pubmed] PHST- 2020/06/09 06:00 [medline] PHST- 2019/01/23 06:00 [entrez] AID - 10.1111/all.13728 [doi] PST - ppublish SO - Allergy. 2019 Jun;74(6):1125-1134. doi: 10.1111/all.13728. Epub 2019 Feb 20.