The Comparison of Cytokine Levels in Exhaled Breath Condensate between Patients with Allergic Asthma and Non-Allergic Asthma and the Correlation With % FEV1 and Asthma Control Test Scores

Objective: We aimed to evaluate our patient’s treatment responses to three-month immunotherapy for allergic rhinitis with or without asthma, and to investigate the factors affecting treatment Material and Methods: A total of 53 patients receiving subcutaneous immunotherapy for allergic rhinitis with or without asthma were included in the study. All patients were positive for mite skin prick test. Asthma was present as a concomitant disease in 28(52.8%) patients. Patients with and without asthma were classified in two groups as “Allergic rhinitis + Asthma+” and “Allergic rhinitis+ Asthma-“. The values of pulmonary function tests of all patients, and in rhinitis with asthma patients, the Asthma Control Test scores before and after three months of treatment were recorded. Results: In “Allergic rhinitis + Asthma+” and “Allergic rhinitis + Asthma-“groups, male/female ratio was 7/21 and 10/15, mean age was 33±9 and 32±9 years. No statistically significant differences were present between the pre-treatment and 3-month-treatment values of pulmonary function test. The difference between the pre-treatment and 3-month treatment asthma control test scores was strongly significant. Conclusion: In allergic rhinitis, which is quite commonly associated with asthma, the control of asthma is also provided with the treatment of allergic rhinitis. By using pulmonary function test in allergic rhinitis and asthma control test in asthma, we showed that the effectiveness of allergen specific immunotherapy started in 3 months which was earlier from current literature.

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Efficacy of air purifier therapy for patients with allergic asthma

10.21203/rs.2.11196/v1 ◽

2019 ◽

Author(s):

Jiaying LUO ◽

Zhao Chen ◽

Li-li Ou ◽

Xin-yuan Lin ◽

Hai-cheng Liu ◽

...

Keyword(s):

Quality Of Life ◽

Treatment Group ◽

Allergic Asthma ◽

Asthma Control ◽

Control Group ◽

Control Test ◽

Asthma Control Test ◽

Air Purifier ◽

Der P1

Abstract Background and Objectives: The prevalence of allergic disease, which has a severely negative effect on patients' quality of life, has been increasing in recent years. Environmental intervention is internationally regarded as a feasible method for controlling asthma. Thus, this study aimed to evaluate the efficacy of air purifier therapy for patients with allergic asthma. Methods: In total, 38 subjects were divided into a treatment group and a control group. All subjects were under the age of eighteen years and had been clinically diagnosed with allergic asthma. The treatment group used High Efficiency Particulate Air (HEPA) air purifiers for six consecutive months, and the control group did not use the air filters. Particulate matter (PM) data and dust samples (bedding and a static point) were collected from the subjects' bedrooms before they started to use the air purifiers and each month thereafter. Simultaneously, the subjects were asked to complete a questionnaire for the Asthma Control Test (ACT) or Childhood Asthma Control Test (C-ACT). Fractional exhaled nitric oxide (FENO) tests were performed at the start and end of the study. The concentrations of Der p1 and Der f1 were measured in the dust samples. Results: 1. After utilizing an air purifier, the concentrations of house dust mite (HDM) allergens (Der p1+ Der f1) in the bedding and static samples decreased by 68.3% and 71.0%, respectively. In addition, the PMindoor/outdoor levels significantly decreased. 2. The ACT and C-ACT scores in the treatment group maintained a steady significant upward trend. 3. At the end of the study, the FENO levels in both groups were lower, although the differences were not significant. Conclusions: HEPA air purifiers are able to decrease indoor HDM allergen and PM levels and improve quality of life in allergic asthma patients.

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