[Effectiveness of a brief educational intervention relating to the correct use of inhalers on the prevention of exacerbation in patients suffering from chronic obstructive pulmonary disease].
Semergen 2018;
45:15-22. [PMID:
30360898 DOI:
10.1016/j.semerg.2018.04.009]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 03/05/2018] [Accepted: 04/09/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE
To predict the effect of a brief educational intervention aimed at improving the inhaler technique on the reduction of exacerbations in patients with COPD over a year.
MATHERIAL AND METHODS
A triple blind, randomised controlled clinical trial with parallel design.
INCLUSION CRITERIA
to be between 40-75 years, having been diagnosed with COPD, and being on treatment with inhalers. A total of 97 patients were randomly selected. They were randomly assigned into 2groups according to their functional severity measured with spirometry. Intervention group: evaluation of the inhalation technique. Their mistakes were corrected using a brief educational intervention. Reinforcement visits were made in the second and seventh month.
CONTROL GROUP
evaluation of the inhalation technique. No educational intervention was made. After 1 year of follow-up, the number of exacerbations in each group was checked.
VARIABLES MEASURED
social and demographic, study, dyspnoea level, body-mass index, tobacco use, FEV1, FEV1/FVC, COPD stage, BODEX index, number, type, and inhaler technique, number of previous exacerbations. Bayesian inference analysis was performed using logistic regression models.
RESULTS
A total of 56 patients were assigned to de intervention group and 41 to the control one. There were 16 and 14 lost to follow-up, respectively. In the intervention group, 44.6% of the patients had an exacerbation, compared to the control group, with 56.1%. OR adjusted = 0.57 (95% CI: 0.22-1.22). Posterior probability OR < 1 = 93%. Exacerbations which required hospital admission had an OR = 0.21 (95% CI: 0.02-0.75) with posterior probability OR < 1= 99%.
CONCLUSIONS
A brief educational technique is an effective method for reducing the number of exacerbations in patients with COPD.
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