The Science Journal of the American Association for Respiratory Care

2010 OPEN FORUM Abstracts

EASE OF USE WITH THREE DIFFERENT METERED DOSE INHALER SPACER DEVICES.

Helena M. Eusenio1, Teresa A. Volsko1, Michele L. McCarroll3, Racheal J. Pohle-Krauza2,3; 1Heatlh Professions, Youngstown State University, Youngstown, OH; 2Human Ecology, Youngstown State University, Youngstown, OH; 3Summa Health System, Akron, OH

BACKGROUND: Spacers augment medication administration for metered dose inhalers (MDI). The LeverHaler is a spacer designed to assist patients with hand strength problems to actuate an MDI. This study sought to determine if spacer design affected spacer preference. We hypothesize that hand strength will not affect the patientÂ’s choice. METHODS: Adult patients enrolled in a pulmonary rehabilitation program with the diagnosis of asthma or chronic obstructive pulmonary disease and MDI experience were enrolled. Proper use of an MDI with the LeverHaler, AeroChamber, and MediSpacer was reviewed with each patient. Participants provided return demonstrations to verify an understanding of each device used. Procedural errors noted during return demonstrations were corrected prior to the data collection. Time to administer a sham MDI dose with each spacer was recorded. Subjects completed a questionnaire evaluating the characteristics and spacer ease of use on a 3 point Likert scale. This questionnaire also ascertained the occurrence and type of hand strength problems, length of MDI use and prior experience with a spacer. Data were entered into SPSS 15.0 for analysis (SPSS Inc., Chicago, IL). Descriptive statistics were used to report study population demographics. Preferences for spacer use were analyzed with Chi-Square. Statistical significance was established at P < 0.05. RESULTS: Twenty subjects between the ages of 30 and 80 years participated. Mean length of MDI use was 8.6 years (+SD 12.4). Hand strength problems were self-reported in 38.6% of participants. The subject assembled and actuated the MediSpacer and the AeroChamber in the least amount of time. Mean times of 26.5 seconds (+SD 12.6) and 29.8 seconds (+SD 12.4) were realized respectively. The LeverHaler took the most time to assemble and actuate a medication dose with a mean time of 35.9 seconds (+SD 29.4). All patients preferred traditional spacer designs, specifically the MediSpacer and AeroChamber, compared to the LeverHaler design, P < 0.040. CONCLUSIONS: Design influenced patient preference. Traditional designs were acceptable to patients with self-reported strength problems. Sponsored Research - None