Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713


Publication continuous and bimonthly

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Factors related to the incorrect use of inhalers by asthma patients

Fatores relacionados ao uso incorreto dos dispositivos inalatórios em pacientes asmáticos

Paulo de Tarso Roth Dalcin, Denis Maltz Grutcki, Paola Paganella Laporte, Paula Borges de Lima, Samuel Millán Menegotto, Rosemary Petrik Pereira

J Bras Pneumol.2014;40(1):13-20

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate inhaler technique in outpatients with asthma and to determine associations between the correctness of that technique and the level of asthma control. Methods: This was a cross-sectional study involving patients ≥ 14 years of age with physician-diagnosed asthma. The patients were recruited from the Asthma Outpatient Clinic of the Hospital de Clínicas de Porto Alegre, in the city of Porto Alegre, Brazil. The patients completed two questionnaires (a general questionnaire and an asthma control questionnaire based on the 2011 Global Initiative for Asthma guidelines), demonstrated their inhaler technique, and performed pulmonary function tests. Incorrect inhaler technique was defined as the incorrect execution of at least two of the predefined steps. Results: We included 268 patients. Of those, 81 (30.2%) showed incorrect inhaler technique, which was associated with poor asthma control (p = 0.002). Logistic regression analysis identified the following factors associated with incorrect inhaler technique: being widowed (OR = 5.01; 95% CI, 1.74-14.41; p = 0.003); using metered dose inhalers (OR = 1.58; 95% CI, 1.35-1.85; p < 0.001); having a monthly family income < 3 times the minimum wage (OR = 2.67; 95% CI, 1.35-1.85; p = 0.008), and having ≥ 2 comorbidities (OR = 3.80; 95% CI, 1.03-14.02; p = 0.045). Conclusions: In the sample studied, incorrect inhaler technique was associated with poor asthma control. Widowhood, use of metered dose inhalers, low socioeconomic level, and the presence of ≥ 2 comorbidities were associated with incorrect inhaler technique.


Keywords: Inaladores dosimetrados; Inaladores de pó seco; Asma/terapia.


Impact of a short-term educational intervention on adherence to asthma treatment and on asthma control

Impacto de uma intervenção educacional de curta duração sobre a adesão ao tratamento e controle da asma

Paulo de Tarso Roth Dalcin, Denis Maltz Grutcki, Paola Paganella Laporte, Paula Borges de Lima, Vinícius Pellegrini Viana, Glauco Luís Konzen, Samuel Millán Menegotto, Mariana Alves Fonseca, Rosemary Petrik Pereira

J Bras Pneumol.2011;37(1):19-27

Abstract PDF PT PDF EN Portuguese Text

Objective: To evaluate the effect of a short-term individualized education program on adherence to asthma treatment, inhalation techniques, and asthma control. Methods: A prospective study involving patients aged 14 years or older, with a confirmed diagnosis of asthma and recruited from the asthma outpatient clinic of a university hospital in the city of Porto Alegre, Brazil. The study was conducted in two phases (before and after the educational intervention). At a routine medical visit, the participants completed a general questionnaire in order to assess the level of asthma control and inhalation techniques. The participants also underwent pulmonary function testing. Subsequently, they participated in an asthma education program, which consisted of one individualized session. The participants were reevaluated after three months. Results: Of the 174 patients recruited, 115 completed the study. Between the first and second evaluations, there was a significant improvement in the effective use of inhaled corticosteroids (90.4% vs. 93.3%; p = 0.003), the effective use of long-acting β2 agonists (57.4% vs. 63.5%; p < 0.0001), the effective use of a combined regimen with these two medications (57.4% vs. 62.6%; p < 0.0001), and the self-reported adherence to corticosteroid therapy (p = 0.001). There was a significant decrease in the proportion of patients visiting ERs (30.4% vs. 23.5%; p = 0.012). However, the level of asthma control and the inhalation technique did not improve significantly (p = 0.095 and p = 0.512, respectively). Conclusions: This short-term asthma education program resulted in an improvement in the use of medications for asthma control and a decrease in the number of ER visits, although it had no significant effect on the inhalation technique.


Keywords: Ambulatory care; Patient education as topic; Respiratory therapy; Metered dose inhalers.




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