PMID- 38531325 OWN - NLM STAT- Publisher LR - 20240326 IS - 1423-0356 (Electronic) IS - 0025-7931 (Linking) DP - 2024 Mar 26 TI - Predicting exacerbations in alpha1-antitrypsin deficiency using clinical and pulmonary function tests: Portuguese EARCO registry. LID - 10.1159/000537759 [doi] AB - INTRODUCTION: Exacerbations are common in individuals with alpha-1-antitrypsin deficiency (AATD) related lung disease. This study intended to identify independent predictive factors for exacerbations in AATD using the Portuguese European Alpha-1 Research Collaboration (EARCO) registry. METHODS: This study includes patients from the Portuguese EARCO registry, a prospective multicentre cohort (NCT04180319). From October 2020 to April 2023 this registry enrolled 137 patients, 14 of whom were excluded for analysis for either missing 12 months of follow-up or baseline pulmonary function. RESULTS: Among the 123 AATD patients, 27 (22.0%) had at least one exacerbation in the last 12 months of follow-up. Patients with Pi*ZZ phenotype were three times more likely than the rest of the population to experience any exacerbation (32.7% vs 14.1%, p=0.014; OR 3.0). BODE index was significantly higher in exacerbators than in non-exacerbators (3.9+/-2.4 vs 1.3+/-1.2; p<0.001), including on multivariate analysis (p=0.002). Similar results were found for BODEx (multivariate p<0.001). DLCO was the only functional parameter independently associated with exacerbations (p=0.024). CONCLUSIONS: DLCO, BODE and BODEx were independent predictors of exacerbations at 12 months in AATD patients. Understanding these risk factors can aid decision-making on AATD-related lung disease management and improve patient outcomes. CI - S. Karger AG, Basel. FAU - Faria, Nuno AU - Faria N FAU - Gomes, Joana AU - Gomes J FAU - Guimaraes, Catarina AU - Guimaraes C FAU - Marcoa, Raquel AU - Marcoa R FAU - Ferraz, Beatriz AU - Ferraz B FAU - Sucena, Maria AU - Sucena M LA - eng PT - Journal Article DEP - 20240326 PL - Switzerland TA - Respiration JT - Respiration; international review of thoracic diseases JID - 0137356 SB - IM EDAT- 2024/03/27 00:44 MHDA- 2024/03/27 00:44 CRDT- 2024/03/26 19:24 PHST- 2023/11/03 00:00 [received] PHST- 2024/02/05 00:00 [accepted] PHST- 2024/03/27 00:44 [medline] PHST- 2024/03/27 00:44 [pubmed] PHST- 2024/03/26 19:24 [entrez] AID - 000537759 [pii] AID - 10.1159/000537759 [doi] PST - aheadofprint SO - Respiration. 2024 Mar 26. doi: 10.1159/000537759.