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2.
J Allergy Clin Immunol Glob ; 2(4): 100134, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37781668

RESUMO

Background: Respiratory multimorbidities are linked to asthma, such as allergic rhinitis (AR) with early allergic asthma and chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) with late nonallergic asthma. Objective: Our aim was to investigate the association of asthma severity and control with specific upper airway phenotypes. Method: Patients with asthma were prospectively recruited from 23 pulmonology and ear, nose, and throat clinics. Asthma severity and control, as well as upper airway comorbidities (AR and non-AR [NAR], CRSwNP, and CRS without nasal polyps [CRSsNP]) were assessed according to international consensus guidelines definitions. Results: A total of 492 asthmatic patients were included. Half of the asthmatic patients (49.6%) had associated rhinitis (37.0% had AR and 12.6% had NAR) and 36.2% had CRS (16.7% had CRSsNP and 19.5% had CRSwNP), whereas 14.2% had no sinonasal symptoms. Most cases of AR (78%) and NAR (84%) were present in patients with mild-to-moderate asthma, whereas CRSwNP was more frequent in patients with severe asthma (35% [P < .001]), mainly nonatopic asthma (44% [P < .001]). Patients with severe asthma with CRSwNP had worse asthma control, which was correlated (r = 0.249 [P = .034]) with sinus occupancy. Multiple logistic regression analysis showed that late-onset asthma, intolerance of aspirin and/or nonsteroidal anti-inflammatory drugs, and CRSwNP were independently associated with severe asthma. Conclusion: Severe asthma is associated with CRSwNP, with sinus occupancy affecting asthma control. This study has identified 2 main different upper airway treatable traits, AR and CRSwNP, which need further evaluation to improve management and control of patients with asthma.

3.
Arch Bronconeumol ; 59(4): 223-231, 2023 Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-36732158

RESUMO

INTRODUCTION: The definition of asthma phenotypes has not been fully established, neither there are cluster studies showing homogeneous results to solidly establish clear phenotypes. The purpose of this study was to develop a classification algorithm based on unsupervised cluster analysis, identifying clusters that represent clinically relevant asthma phenotypes that may share asthma-related outcomes. METHODS: We performed a multicentre prospective cohort study, including adult patients with asthma (N=512) from the MEGA study (Mechanisms underlying the Genesis and evolution of Asthma). A standardised clinical history was completed for each patient. Cluster analysis was performed using the kernel k-groups algorithm. RESULTS: Four clusters were identified. Cluster 1 (31.5% of subjects) includes adult-onset atopic patients with better lung function, lower BMI, good asthma control, low ICS dose, and few exacerbations. Cluster 2 (23.6%) is made of adolescent-onset atopic asthma patients with normal lung function, but low adherence to treatment (59% well-controlled) and smokers (48%). Cluster 3 (17.1%) includes adult-onset patients, mostly severe non-atopic, with overweight, the worse lung function and asthma control, and receiving combination of treatments. Cluster 4 (26.7%) consists of the elderly-onset patients, mostly female, atopic (64%), with high BMI and normal lung function, prevalence of smokers and comorbidities. CONCLUSION: We defined four phenotypes of asthma using unsupervised cluster analysis. These clusters are clinically relevant and differ from each other as regards FEV1, age of onset, age, BMI, atopy, asthma severity, exacerbations, control, social class, smoking and nasal polyps.


Assuntos
Asma , Hipersensibilidade Imediata , Feminino , Masculino , Humanos , Estudos de Coortes , Estudos Prospectivos , Asma/tratamento farmacológico , Fenótipo , Análise por Conglomerados
4.
Clin Transl Allergy ; 12(8): e12182, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36000018

RESUMO

Background and Aims: Asthma is a heterogeneous respiratory disease that encompasses different inflammatory and functional endophenotypes. Many non-invasive biomarkers has been investigated to its pathobiology. Heany et al proposed a clinical algorithm that classifies severe asthmatic patients into likely-eosinophilic phenotypes, based on accessible biomarkers: PBE, current treatment, FeNO, presence of nasal polyps (NP) and age of onset. Materials and Methods: We assessed the concordance between the algorithm proposed by Heany et al. with sputum examination, the gold standard, in 145 asthmatic patients of the MEGA cohort with varying grades of severity. Results: No correlation was found between both classifications 0.025 (CI = 0.013-0.037). Moreover, no relationship was found between sputum eosinophilia and peripheral blood eosinophilia count in the total studied population. Discussion and Conclusion: In conclusion, our results suggest that grouping the biomarkers proposed by Heany et al. are insufficient to diagnose eosinophilic phenotypes in asthmatic patients. Sputum analysis remains the gold standard to assess airway inflammation.

5.
Arch Bronconeumol ; 58(2): T150-T158, 2022 Feb.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-35971814

RESUMO

In this fifth phase of development, the contents of the Spanish Asthma Management Guidelines (GEMA), which include versions 5.0 and 5.1, have undergone a thorough review. The aim here is to set the main changes in context. These could be summarized as follows: DIAGNOSIS: new FENO cut-off and severity classification based on treatment needed to maintain control; INTERMITTENT ASTHMA: a more restrictive concept and treatment extended to include a glucocorticoid/adrenergic combination as needed; MILD ASTHMA: glucocorticoid/adrenergic therapy as needed as an alternative in case of low therapeutic adherence to conventional fixed-dose steroids; SEVERE ASTHMA: readjustment of phenotypes, incorporation of triple therapy in a single inhaler, and criteria for selection of a biologic in severe uncontrolled asthma; OTHERS: specific scoring in childhood asthma, incorporation of certain organizational aspects (care circuits, asthma units, telemedicine), new sections on COVID-19 and nasal polyposis.


Assuntos
Asma , COVID-19 , Adrenérgicos/uso terapêutico , Asma/tratamento farmacológico , Glucocorticoides/uso terapêutico , Humanos
6.
J Allergy Clin Immunol Pract ; 10(9): 2297-2309.e10, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35364341

RESUMO

BACKGROUND: Expert national/global asthma management recommendations raise the issue whether a safe threshold of short-acting beta-2 agonist (SABA) use without concomitant inhaled corticosteroids (ICS) exists. OBJECTIVE: To examine SABA and maintenance therapy associations with severe asthma exacerbations across North America and Europe. METHODS: Observational analyses of 10 SABa use IN Asthma (SABINA) datasets involving 1,033,564 patients (≥12 y) from Canada, France, the Netherlands, Poland, Spain, the United Kingdom, and the United States. Negative binomial models (incidence rate ratio [IRR] [95% CI adjusted for prespecified-covariates]) evaluated associations between SABA and exacerbations. RESULTS: Across severities, 40.2% of patients were prescribed/possessed 3 or more SABA canisters/y. Per the Global Initiative for Asthma (GINA) 2018 definitions, steps 3 to 5-treated patients prescribed/possessing 3 or more versus 1 or 2 SABAs experienced more severe exacerbations (IRR 1.08 [95% CI 1.04‒1.13], U.S. Medicare; IRR 2.11 [95% CI 1.96‒2.27], Poland). This association was not observed in all step 1 or 2-treated patients (the Netherlands, IRR 1.25 [95% CI 0.91‒1.71]; U.S. commercial, IRR 0.92 [95% CI 0.91‒0.93]; U.S. Medicare, IRR 0.74 [95% CI 0.71‒0.76]). We hypothesize that this inverse association between SABA and severe exacerbations in the U.S. datasets was attributable to the large patient population possessing fewer than 3 SABA and no maintenance therapy and receiving oral corticosteroid bursts without face-to-face health care provider encounters. In U.S. SABA monotherapy-treated patients, 3 or more SABAs were associated with more emergency/outpatient visits and hospitalizations (IRR 1.31 [95% CI 1.29‒1.34]). Most GINA 2 to 5-treated study patients (60.6%) did not have maintenance therapy for up to 50% of the time; however, the association of 3 or more SABAs and severe exacerbations persisted (IRR 1.32 [95% CI 1.18‒1.49]) after excluding these patients and the independent effect was further confirmed when U.K. SABA data were analyzed as a continuous variable in patients with up to 100% annual coverage for ICS-containing medications. CONCLUSIONS: Increasing SABA exposure is associated with severe exacerbation risk, independent of maintenance therapy. As addressed by GINA, based on studies across asthma severities where as-needed fast-acting bronchodilators with concomitant ICS decrease severe exacerbations compared with SABA, our findings highlight the importance of avoiding a rescue/reliever paradigm utilizing SABA monotherapy.


Assuntos
Antiasmáticos , Asma , Administração por Inalação , Corticosteroides/uso terapêutico , Idoso , Antiasmáticos/uso terapêutico , Asma/tratamento farmacológico , Asma/epidemiologia , Broncodilatadores/uso terapêutico , Combinação Budesonida e Fumarato de Formoterol/uso terapêutico , Humanos , Programas Nacionais de Saúde
7.
Arch Bronconeumol ; 58(2): 150-158, 2022 Feb.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-34167859

RESUMO

In this fifth phase of development, the contents of the Spanish Asthma Management Guidelines (GEMA), which include versions 5.0 and 5.1, have undergone a thorough review. The aim here is to set the main changes in context. These could be summarized as follows: DIAGNOSIS: new FENO cut-off and severity classification based on treatment needed to maintain control; INTERMITTENT ASTHMA: a more restrictive concept and treatment extended to include a glucocorticoid/adrenergic combination as needed; MILD ASTHMA: glucocorticoid/adrenergic therapy as needed as an alternative in case of low therapeutic adherence to conventional fixed-dose steroids; SEVERE ASTHMA: readjustment of phenotypes, incorporation of triple therapy in a single inhaler, and criteria for selection of a biologic in severe uncontrolled asthma; OTHERS: specific scoring in childhood asthma, incorporation of certain organizational aspects (care circuits, asthma units, telemedicine), new sections on COVID-19 and nasal polyposis.

8.
PLoS One ; 16(6): e0251881, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34086689

RESUMO

INTRODUCTION: Asthma with airway mucus hypersecretion is an inadequately characterized variant of asthma. While several studies have reported that hypersecreting patients may carry genetic variants in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, many of those studies have been questioned for their numerous limitations and contradictory results. OBJECTIVES: (1) To determine the presence of genetic variants of the CFTR gene in patients with asthma with and without airway mucus hypersecretion. (2) To identify the clinical, inflammatory and functional characteristics of the asthma phenotype with airway mucus hypersecretion. METHOD: Comparative multicentre cross-sectional descriptive study that included 100 patients with asthma (39 hypersecretors and 61 non-hypersecretors). Asthmatic hypersecretion was defined as the presence of cough productive of sputum on most days for at least 3 months in 2 successive years. The patients were tested for fractional exhaled nitric oxide, spirometry, induced sputum cell count, total immunoglobulin E (IgE), peripheral blood eosinophil count, C-reactive protein, blood fibrinogen and blood albumin and underwent a skin prick test. Asthma control and quality of life were assessed by the Asthma Control Test and Mini Asthma Quality of Life questionnaires, respectively. Blood DNA samples were collected from the patients and next-generation sequencing using a MiSeq sequencer and the Illumina platform was used for the CFTR gene analysis. RESULTS: Genetic differences were observed in the c.1680-870T>A polymorphism of the CFTR gene, significantly more evident in hypersecretors than in non-hypersecretors: 78.94% vs. 59.32% in the majority allele and 21.05% vs. 40.67% in the minority allele (p = 0.036). Clinically, asthma hypersecretors compared to non-hypersecretors were older (57.4 years vs. 49.4 years; p = 0.004); had greater asthma severity (58.9% vs. 23.7%; p = 0.005); experienced greater airway obstruction (FEV1/FVC% 64.3 vs. 69.5; p = 0.041); had poorer asthma control (60% vs. 29%; p = 0.021); had lower IgE levels (126.4 IU/mL vs. 407.6 IU/mL; p = 0.003); and were less likely to have a positive prick test (37.5% vs. 68.85%; p = 0.011). CONCLUSION: The results suggest that patients with asthma and with mucus hypersecretion (1) may have a different phenotype and disease mechanism produced by an intronic polymorphism in the CFTR gene (NM_000492.3:c.1680-870T>A), and (2) may have a poorer clinical outcome characterized by severe disease and poorer asthma control with a non-allergic inflammatory phenotype.


Assuntos
Asma/genética , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Sistema Respiratório/metabolismo , Escarro/metabolismo , Asma/metabolismo , Tosse/genética , Estudos Transversais , Eosinófilos/metabolismo , Expiração/genética , Feminino , Variação Genética/genética , Humanos , Imunoglobulina E/genética , Masculino , Pessoa de Meia-Idade , Muco/metabolismo , Óxido Nítrico/metabolismo , Testes de Função Respiratória
9.
Clin Transl Allergy ; 11(1): e12001, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33900052

RESUMO

INTRODUCTION: The MEGA (MEchanism underlying the Genesis and evolution of Asthma) project is a multicenter cohort study carried out in eight Spanish hospitals, gathering clinical, physiological, and molecular data from patients with asthma and multimorbidities in order to gain insight into the different physiopathological mechanisms involved in this disorder. MATERIAL AND METHODS: We report the baseline clinical and physiological characteristics and biomarker measures of adult participants in the project with the aim of better understanding the natural history and underlying mechanisms of asthma as well as the associated multimorbidities across different levels of severity. We carried out a detailed clinical examination, pulmonary function testing, measurement of fractional exhaled nitric oxide (FeNO), blood counts, induced sputum, skin prick tests, chest computed tomography scan, asthma questionnaires, and multimorbidity assessment in 512 asthmatic patients. RESULTS: When compared to patients with milder disease, severe asthmatic patients showed greater presence of symptoms, more exacerbations, lower asthma control, increased airflow obstruction, and higher frequency of chronic rhinosinusitis with nasal polyps, severe rhinitis, anxiety and depression, gastroesophageal reflux, and bronchiectasis. CONCLUSION: The MEGA project succeeded in recruiting a high number of asthma patients, especially those with severe disease, who showed lower control and higher frequency of multimorbidities.

11.
NPJ Prim Care Respir Med ; 29(1): 39, 2019 11 08.
Artigo em Inglês | MEDLINE | ID: mdl-31704942

RESUMO

The purpose of this study is to develop and validate a work model in the primary health-care setting for identifying patients with obstructive sleep apnea-hypopnea syndrome (OSAHS) based on clinical variables and an ambulatory sleep monitoring study. After screening, patients with mild-moderate OSAHS could be managed by primary care physicians, whereas those identified with severe OSAHS would be referred to specialists from sleep units for starting specific treatment. The proposed model does not move the entire health-care process to a generally overburdened primary care level and favors the coordinated work and the necessary flexibility to adapt the model to challenges and perspectives of OSAHS.


Assuntos
Programas de Rastreamento/métodos , Atenção Primária à Saúde/métodos , Apneia Obstrutiva do Sono/diagnóstico , Saúde Global , Humanos , Incidência , Polissonografia , Apneia Obstrutiva do Sono/epidemiologia
12.
Asthma Res Pract ; 5: 2, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30937177

RESUMO

BACKGROUND: The prevalence of chronic diseases in the elderly (> 65 years), including asthma, is growing, yet information available on asthma in this population is scarce.Our objective is to determine the differential clinical and functional characteristics of the population > 65 years old with asthma included in the Integrated Research Programs of Asthma Databank of the Spanish Society of Pneumology and Thoracic Surgery (www.bancodatosasma.com). METHODS: Retrospective comparative descriptive study of demographic, clinical and functional variables for 1713 patients with asthma categorized into 3 age groups as follows: adults aged < 65 years (A), younger elderly aged 65-74 years (B) and older elderly aged ≥75 years (C). RESULTS: Predominant features of elderly patients with asthma (N = 471) were the female sex, fewer smokers, greater obesity, poorer lung function, and lower values of nitric oxide in exhaled air (p < 0.01). The most frequently associated comorbidity was gastroesophageal reflux. The highest doses of inhaled corticosteroids were by group A (60.8%). For the sample overall, 23.2% (N = 398) were being treated with omalizumab and 8.2% (N = 140) were corticosteroid-dependent (10.6% in group B). The highest percentage of patients receiving antileukotriene agents was in group B (42.9%). CONCLUSIONS: Asthma in adults aged> 65 is more severe and associated with greater comorbidity, which would indicate the need for a more integrated and multidimensional approach to asthma treatment for these patients.

13.
Respir Med ; 136: 111-117, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29501241

RESUMO

RATIONALE: Airway colonization by Potentially Pathogenic Microorganisms (PPM) in bronchiectasis is associated with worse clinical outcomes. The electronic nose is a non-invasive technology capable of distinguishing volatile organic compounds (VOC) in exhaled breath. We aim to explore if an electronic nose can reliably discriminate airway bacterial colonization in patients with bronchiectasis. METHODS: Seventy-three clinically stable bronchiectasis patients were included. PPM presence was determined using sputum culture. Exhaled breath was collected in Tedlar bags and VOC breath-prints were detected by the electronic nose Cyranose 320®. Raw data was reduced to three factors with principal component analysis. Univariate ANOVA followed by post-hoc least significant difference test was performed with these factors. Patients were then classified using linear canonical discriminant analysis. Cross-validation accuracy values were defined by the percentage of correctly classified patients. RESULTS: Forty-one (56%) patients were colonized with PPM. Pseudomonas aeruginosa (n = 27, 66%) and Haemophilus influenzae (n = 7, 17%) were the most common PPM. VOC breath-prints from colonized and non-colonized patients were significantly different (accuracy of 72%, AUROC 0.75, p < 0.001). VOC breath-prints from Pseudomonas aeruginosa colonized patients were significantly different from those of patients colonized with other PPM (accuracy of 89%, AUROC 0.97, p < 0.001) and non-colonized patients (accuracy 73%, AUROC 0.83, p = 0.007). CONCLUSIONS: An electronic nose can accurately identify VOC breath-prints of clinically stable bronchiectasis patients with airway bacterial colonization, especially in those with Pseudomonas aeruginosa.


Assuntos
Bronquiectasia/microbiologia , Nariz Eletrônico , Infecções por Pseudomonas/diagnóstico , Pseudomonas aeruginosa/isolamento & purificação , Idoso , Análise de Variância , Brônquios/microbiologia , Bronquiectasia/fisiopatologia , Estudos Transversais , Feminino , Volume Expiratório Forçado/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Infecções por Pseudomonas/fisiopatologia , Capacidade Vital/fisiologia
14.
Respir Med ; 135: 22-28, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29414449

RESUMO

BACKGROUND: Bronchial hypersecretion is a poorly studied symptom in asthma. The aim of the study was to determine the specific characteristics of asthmatics with bronchial hypersecretion. METHODS: A total of 142 asthmatics (21.8% men; mean age 49.8 years) were prospectively followed for one year. Mucus hypersecretion was clinically classified into two severity categories: daily sputum production and frequent expectoration but not every day. Clinical and pulmonary function variables associated with mucus hypersecretion were assessed by multiple logistic regression analysis. RESULTS: Daily cough was recorded in 28.9% of patients and sputum production daily or most of the days in 52.1%. Patients with mucus hypersecretion had more dyspnoea, poorer asthma control and quality of life, had suffered from more exacerbations and showed anosmia associated with chronic rhinosinusitis and nasal polyposis more frequently. Factors associated to mucus hypersecretion were anosmia, one exacerbation or more in the previous year and FEV1/FVC <70% (AUC 0.75, 95% CI 0.66-0.85) for the first definition of hypersecretion, and anosmia, poor asthma control and age (AUC 0.75, 95% CI 0.67-0.83) for the second definition. CONCLUSIONS: Mucus hypersecretion is frequent in patients with asthma, and is associated with chronic upper airways disease, airway obstruction, poor asthma control and more exacerbations.


Assuntos
Asma/fisiopatologia , Muco/metabolismo , Pólipos/complicações , Sinusite/complicações , Escarro/metabolismo , Adulto , Idoso , Asma/complicações , Asma/genética , Asma/psicologia , Tosse/epidemiologia , Tosse/fisiopatologia , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos do Olfato/fisiopatologia , Fenótipo , Pólipos/epidemiologia , Estudos Prospectivos , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Qualidade de Vida , Testes de Função Respiratória/métodos , Sinusite/epidemiologia , Espanha/epidemiologia
15.
Artigo em Inglês | MEDLINE | ID: mdl-29483774

RESUMO

Introduction: The asthma-chronic obstructive pulmonary disease (COPD) overlap (ACO) is a clinical condition that combines features of those two diseases, and that is difficult to define due to the lack of understanding of the underlying mechanisms. Determining systemic mediators may help clarify the nature of inflammation in patients with ACO. Objectives: We aimed at investigating the role and interaction of common markers of systemic inflammation (IL-6, IL-8, and tumor necrosis factor-α), Th2-related markers (periostin, IL-5, and IL-13), and IL-17 in asthma, COPD, and ACO. Methods: This is a cross-sectional study of patients aged ≥40 years with a post-bronchodilator forced expiratory volume in the first second/forced vital capacity <0.70 recruited from outpatient clinics in tertiary hospitals with a clinical diagnosis of asthma, COPD, or ACO. ACO was defined by a history of smoking >10 pack-years in a patient with a previous diagnosis of asthma or by the presence of eosinophilia in a patient with a previous diagnosis of COPD. Clinical, functional, and inflammatory parameters were compared between categories using discriminant and network analysis. Results: In total, 109 ACO, 89 COPD, and 94 asthma patients were included. Serum levels (median [interquartile range]) of IL-5 were higher in asthma patients than in COPD patients (2.09 [0.61-3.57] vs 1.11 [0.12-2.42] pg/mL, respectively; p=0.03), and IL-8 levels (median [interquartile range]) were higher in COPD patients than in asthma patients (9.45 [6.61-13.12] vs 7.03 [4.69-10.44] pg/mL, respectively; p<0.001). Their values in ACO were intermediate between those in asthma and in COPD. Principal component and network analysis showed a mixed inflammatory pattern in ACO in between asthma and COPD. IL-13 was the most connected node in the network, with different weights among the three conditions. Conclusion: Asthma and COPD are two different inflammatory conditions that may overlap in some patients, leading to a mixed inflammatory pattern. IL-13 could be central to the regulation of inflammation in these conditions.


Assuntos
Asma/sangue , Mediadores da Inflamação/sangue , Interleucina-13/sangue , Redes Neurais de Computação , Doença Pulmonar Obstrutiva Crônica/sangue , Células Th2/metabolismo , Adulto , Idoso , Asma/diagnóstico , Asma/imunologia , Asma/fisiopatologia , Biomarcadores/sangue , Moléculas de Adesão Celular/sangue , Estudos Transversais , Análise Discriminante , Feminino , Volume Expiratório Forçado , Humanos , Interleucina-17/sangue , Interleucina-5/sangue , Interleucina-6/sangue , Interleucina-8/sangue , Pulmão/fisiopatologia , Masculino , Pessoa de Meia-Idade , Prognóstico , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/imunologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Espanha , Células Th2/imunologia , Fator de Necrose Tumoral alfa/sangue , Capacidade Vital
16.
Arch Bronconeumol (Engl Ed) ; 54(4): 198-204, 2018 Apr.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-29229474

RESUMO

OBJECTIVES: We aimed to characterize the clinical, functional and inflammatory features of patients diagnosed diagnosed with ACO according to a new algorithm and to compare them with those of other chronic obstructive airway disease (COAD) categories (asthma and COPD). METHODS: ACO was diagnosed in a cohort of COAD patients in those patients with COPD who were either diagnosed with current asthma or showed significant blood eosinophilia (≥300cells/µl) and/or a very positive bronchodilator response (>400ml and >15% in FEV1). RESULTS: Eighty-seven (29.8%) out of 292 patients fulfilled the ACO diagnostic criteria (12.8% asthmatics who smoked <20 pack-years, 100% of asthmatics who smoked ≥20 pack-years, 47.7% of COPD with >200eosinophils/µl in blood and none with non-eosinophilic COPD). ACO, asthma and COPD patients showed no differences in symptoms or exacerbation rate. Mean pre-bronchodilator FEV1 in ACO and asthma were similar (1741 vs 1771ml), higher than in COPD (1431ml, p<0.05). DLCO was lower in ACO than in asthma (68.1 vs 84.1%) and similar to COPD (64.5%). Mean blood eosinophil count was similar in ACO and asthma (360 vs 305cells/µl) and higher than in COPD (170cells/µl). Periostin levels were similar in ACO to COPD (36.6 and 36.5IU/ml) and lower than in asthma (41.5IU/ml, p<0.05), whereas FeNO levels in ACO were intermediate. CONCLUSION: This algorithm classifies as ACO all smoking asthmatics with non-fully reversible airway obstruction and a considerable proportion of e-COPD patients, highlighting those who can benefit from inhaled corticosteroids.


Assuntos
Algoritmos , Asma/complicações , Doença Pulmonar Obstrutiva Crônica/complicações , Corticosteroides/uso terapêutico , Obstrução das Vias Respiratórias/etiologia , Antiasmáticos/uso terapêutico , Asma/diagnóstico , Asma/epidemiologia , Asma/fisiopatologia , Testes Respiratórios , Broncodilatadores/uso terapêutico , Moléculas de Adesão Celular/sangue , Comorbidade , Quimioterapia Combinada , Eosinofilia/epidemiologia , Volume Expiratório Forçado , Humanos , Inflamação , Óxido Nítrico/análise , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Fumar/epidemiologia
17.
J Asthma Allergy ; 10: 269-276, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29066918

RESUMO

Asthma with bronchial hypersecretion is a type of asthma that is poorly studied. Its pathogenesis is not well understood, but is probably related to innate impaired immunity, particularly with toll-like receptors (TLRs) and secretory mucins (MUC). OBJECTIVES: 1) Define the clinical and inflammatory phenotype of asthma with bronchial hypersecretion of mucus. 2) Compare the type of mucin present in induced sputum (IS) of patients with and without bronchial hypersecretion. 3) Determine the expression of TLRs in IS and blood of asthmatics with and without bronchial hypersecretion. MATERIALS AND METHODS: Cross-sectional study which included 43 non-smoking asthmatic patients without bronchiectasis, 19 with bronchiectasis, and 24 without bronchial hypersecretion. All patients underwent the following: IS, spirometry, fractional exhaled nitric oxide, prick test, total immunoglobulin E (IgE), and blood albumin. Analysis of mucins was determined by ELISA and expression of TLR2 and TLR4 by flow cytometry. The level of asthma control was determined by the Asthma Control Test (ACT) questionnaire and quality of life was assessed by the reduced version of the Asthma Quality of Life Questionnaire (mini-AQLQ). RESULTS: Asthmatics with bronchial hypersecretion were significantly older (62.6 years vs 48.5 years; p=0.02); had greater severity (persistent severe asthma 94.7% vs 29.2%; p=0.000); a higher proportion of nasal polyposis (36.8% vs 8.3%; p=0.022); less control of asthma (73.7% vs 8.3%; p=0,000); a higher proportion of asthma with negative prick test (68.4% vs 16.6%; p=0.001), and lower levels of IgE (113.4 IU/mL vs 448 IU/mL; p=0.007), compared with asthmatics without bronchial hypersecretion. Significant differences were observed neither in the expression of TLRs 2 and 4 in inflammatory cells of IS or peripheral blood, nor in the expression of mucins between both groups. CONCLUSION: Asthma patients with bronchial hypersecretion have more severe and uncontrolled disease, with poor quality of life as well as a non-allergic inflammatory phenotype. Within the mechanisms involving these differences, it does not appear that mucins and TLRs play an important role.

18.
Curr Med Res Opin ; 33(12): 2181-2186, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28699806

RESUMO

BACKGROUND: Fibromyalgia can affect the control of asthma when both diseases are present in a single patient. OBJECTIVES: To characterize asthma in patients with concomitant fibromyalgia to assess whether fibromyalgia is an independent factor of asthma severity that influences poor asthma control. We also evaluated how dyspnea is perceived by patients in order to demonstrate that alterations in the perception of airway obstruction may be responsible for poor asthma control. METHODS: This was a cross-sectional case-control multicenter study, in which 56 patients in the asthma and fibromyalgia group were matched to 36 asthmatics by sex, approximate age, and asthma severity level. All patients were women. Study variables included the Asthma Control Test (ACT), the Mini Asthma Quality of Life Questionnaire (MiniAQLQ), the Nijmegen hyperventilation syndrome questionnaire, the Hospital Anxiety and Depression Scale, and perception of dyspnea after acute bronchoconstriction. RESULTS: Although patients in both study groups showed similar asthma severity and use of anti-asthmatic drugs, patients in the asthma and fibromyalgia group showed lower scores on the ACT and MiniAQLQ questionnaires, and higher scores of anxiety and depression as well as hyperventilation compared to asthma patients without fibromyalgia. All these differences were statistically significant. CONCLUSIONS: Fibromyalgia in patients with asthma influences poor control of the respiratory disease and is associated with altered perception of dyspnea, hyperventilation syndrome, high prevalence of depression and anxiety, and impaired quality of life. CLINICAL IMPLICATIONS: Fibromyalgia may be considered a risk factor for uncontrolled asthma in patients suffering from asthma and fibromyalgia concomitantly.


Assuntos
Asma/etiologia , Dispneia/etiologia , Fibromialgia/complicações , Adulto , Idoso , Ansiedade/etiologia , Broncoconstrição , Estudos de Casos e Controles , Estudos Transversais , Depressão/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Percepção , Prevalência , Qualidade de Vida , Fatores de Risco , Índice de Gravidade de Doença , Inquéritos e Questionários
19.
Respir Med ; 128: 1-6, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28610665

RESUMO

BACKGROUND: Identification of chronic Pseudomonas aeruginosa (PA) infection is important in the management of bronchiectasis, but requires repeated sputum sampling. We hypothesized that serum anti-PA IgG antibodies could diagnose chronic PA infection at a single visit. METHODS: Clinically stable bronchiectasis patients were studied prospectively. Chronic PA infection was defined as 2 or more positive sputum samples at least 3 months apart and/or failure to clear PA following eradication treatment. Baseline serum anti-PA IgG was determined by a validated ELISA kit. RESULTS: A total of 408 patients were included. Sixty of them (14.7%) had chronic PA infection and had higher anti-PA IgG levels (median 6.2 vs. 1.3 units, p < 0.001). Antibody levels showed direct significant correlations with exacerbation frequency, the bronchiectasis severity index and sputum inflammatory markers. Fifty-seven patients with chronic PA infection had a positive test, giving 95% sensitivity, 74.4% specificity and AUROC of 0.87. During follow-up, 38 patients had a new PA isolation. Eradication at 12 months was achieved in 89.5% of subjects with a negative antibody test and 15.8% of patients with a positive test. CONCLUSIONS: Anti-PA IgG test is highly accurate to detect chronic PA infection in bronchiectasis patients. In addition, it may be a marker of disease severity and treatment response.


Assuntos
Anticorpos/sangue , Bronquiectasia/diagnóstico , Bronquiectasia/imunologia , Infecções por Pseudomonas/sangue , Infecções Respiratórias/microbiologia , Idoso , Anticorpos/imunologia , Bronquiectasia/tratamento farmacológico , Fibrose Cística/tratamento farmacológico , Fibrose Cística/imunologia , Progressão da Doença , Feminino , Volume Expiratório Forçado/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Infecções por Pseudomonas/tratamento farmacológico , Infecções por Pseudomonas/imunologia , Pseudomonas aeruginosa/imunologia , Pseudomonas aeruginosa/isolamento & purificação , Infecções Respiratórias/tratamento farmacológico , Infecções Respiratórias/fisiopatologia , Índice de Gravidade de Doença , Escarro/imunologia , Escarro/microbiologia , Reino Unido/epidemiologia , Capacidade Vital/fisiologia
20.
Arch Bronconeumol ; 53(12): 667-674, 2017 Dec.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-28647305

RESUMO

INTRODUCTION: Sexual limitations play an important role in the quality of life of patients with chronic diseases. Very limited information is available on the impact of asthma on the sexual functioning of these individuals. MATERIALS AND METHODS: Cross-sectional, observational, multicenter study. Asthma patients and healthy individuals were recruited. All subjects participated in an interview in which demographic and clinical data were recorded, and completed the Goldberg Anxiety-Depression Scale (GADS) to evaluate the presence of concomitant psychiatric disease. Men also completed the International Index of Erectile Function (IIEF), and women, the Female Sexual Function Index (FSFI). RESULTS: A total of 276cases were included, comprising 172asthma patients (63 men and 109 women) with a mean age of 42 (±14) years, and 104 controls (52men and 51women) with a mean age of 39 (±12) years. Time since onset of asthma was 15 years and severity distribution was: 6.4% intermittent, 17.9% mild persistent, 47.4% moderate, and 28.2% severe. Disease was considered controlled in 57.7%, partially controlled in 28.2%, and uncontrolled in 14.1%. Women with asthma had greater sexual limitations than women in the control group, with a total FSFI score of 22.1 (±9) compared to 26.5 (±6.8), respectively (P<.005). Men with asthma had significantly more severe erectile dysfunction with a total IIEF score of 59.5 (±12.5) compared to 64.3 (±8.2) in male controls (P<.05). An association was also observed between sexual problems and poorer asthma control. CONCLUSIONS: Asthma is associated with a poorer sexual quality of life among patients. These results should arouse the interest of healthcare professionals in detecting and alleviating possible sexual limitations among their asthma patients in routine clinical practice.


Assuntos
Asma/epidemiologia , Disfunções Sexuais Fisiológicas/epidemiologia , Adulto , Ansiedade/epidemiologia , Nível de Alerta , Asma/etiologia , Asma/fisiopatologia , Asma/psicologia , Estudos de Casos e Controles , Comorbidade , Estudos Transversais , Depressão/epidemiologia , Progressão da Doença , Disfunção Erétil/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Esforço Físico , Qualidade de Vida , Rinite/epidemiologia , Índice de Gravidade de Doença , Disfunções Sexuais Fisiológicas/fisiopatologia , Fumar/epidemiologia , Fumar/fisiopatologia , Espirometria
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