PMID- 32674292 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 9 IP - 7 DP - 2020 Jul 14 TI - Clinical Characterization of the Frequent Exacerbator Phenotype in Asthma. LID - 10.3390/jcm9072226 [doi] LID - 2226 AB - BACKGROUND: Asthma exacerbation is episodic worsening of respiratory symptoms in conjunction with the deterioration of lung function, which may occur independently from the asthma severity hampering asthmatics' quality of life. This study aimed to characterize the patient phenotype more prone to asthma exacerbation (oral corticosteroid burst >/=2 per year) to allow the proper identification of such patients. METHODS: This real-life, observational, cross-sectional study evaluated 464 asthmatic patients stratified according to the asthma exacerbations experienced in the previous year. Clinical, functional, and blood parameters were retrieved from chart data and were representative of patients in stable conditions. RESULTS: The frequent asthma exacerbator was more commonly female, suffered from chronic rhinosinusitis with nasal polyposis, had reduced lung function and peripheral oxygen saturation, and had increased daily activity limitations. These patients often had severe asthma and more frequently needed hospitalization in their lives. Furthermore, the frequent asthma exacerbator had higher concentrations of serum immunoglobulin E (IgE) and exhaled nitric oxide with cut-off risk values of 107.5 kU/L (OR = 4.1) and 43.35 ppb (OR = 3.8), respectively. CONCLUSIONS: This study illustrates the clinical features of the frequent asthma exacerbator phenotype. Nevertheless, serum IgE and exhaled nitric oxide could allow the identification of this phenotype and the establishment of an appropriate therapeutic approach. FAU - Sprio, Andrea Elio AU - Sprio AE AUID- ORCID: 0000-0001-5891-871X AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. FAU - Carriero, Vitina AU - Carriero V AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. FAU - Levra, Stefano AU - Levra S AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. FAU - Botto, Carlotta AU - Botto C AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. FAU - Bertolini, Francesca AU - Bertolini F AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. FAU - Di Stefano, Antonino AU - Di Stefano A AUID- ORCID: 0000-0003-3479-0875 AD - Department of Pneumology and Laboratory of Cytoimmunopathology of the Heart and Lung, Istituti Clinici Scientifici Maugeri SpA, IRCCS, Veruno, 28010 Novara, Italy. FAU - Maniscalco, Mauro AU - Maniscalco M AUID- ORCID: 0000-0001-6751-9921 AD - Pulmonary Rehabilitation Unit, Istituti Clinici Scientifici Maugeri SpA, IRCCS, Telese Terme, 82037 Benevento, Italy. FAU - Ciprandi, Giorgio AU - Ciprandi G AUID- ORCID: 0000-0001-7016-8421 AD - Allergy Clinic, Casa di Cura Villa Montallegro, 16145 Genoa, Italy. FAU - Ricciardolo, Fabio Luigi Massimo AU - Ricciardolo FLM AD - Department of Clinical and Biological Sciences, University of Turin, San Luigi Gonzaga University Hospital, Orbassano, 10043 Turin, Italy. LA - eng PT - Journal Article DEP - 20200714 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC7408982 OTO - NOTNLM OT - IgE OT - airway obstruction OT - asthma OT - nasal polyps OT - nitric oxide COIS- The authors declare that no conflicts of interest exist. EDAT- 2020/07/18 06:00 MHDA- 2020/07/18 06:01 PMCR- 2020/07/14 CRDT- 2020/07/18 06:00 PHST- 2020/06/15 00:00 [received] PHST- 2020/07/05 00:00 [revised] PHST- 2020/07/10 00:00 [accepted] PHST- 2020/07/18 06:00 [entrez] PHST- 2020/07/18 06:00 [pubmed] PHST- 2020/07/18 06:01 [medline] PHST- 2020/07/14 00:00 [pmc-release] AID - jcm9072226 [pii] AID - jcm-09-02226 [pii] AID - 10.3390/jcm9072226 [doi] PST - epublish SO - J Clin Med. 2020 Jul 14;9(7):2226. doi: 10.3390/jcm9072226.