The Science Journal of the American Association for Respiratory Care

1997 OPEN FORUM Abstracts

PROSPECTIVE CLINICAL COMPARISON OF TWO SMALL VOLUME NEBULIZERS IN PATIENTS WITH ACUTE RESPIRATORY DISTRESS TREATED IN THE EMERGENCY DEPARTMENT

Dena Lachowitzer RRT, Jay Taylor AS RRT, Jack Offerdahl AA RRT, Tamara McCabe Halvorson BA RRT, Jon Gietzen BS RRT*, MeritCare Health Care System, * North Dakota State University/MeritCare Respiratory Care Program, Fargo, ND

Introduction: We prospectively evaluated the effectiveness of a new small volume nebulizer (SVN), the Circulaire (WestMed Mfg, Tuscon, AZ) comparing it's clinical performance to the Micro Mist (Hudson RCI, Temecula, CA) SVN we currently use.

Methods: 52 patients in acute respiratory distress treated in our hospital emergency center were entered into this study. All patients received albuterol sulfate 2.5 mg per treatment. Our Lead Respiratory Therapists measured treatment time, pre/post peak flow, and had the patient score their respiratory distress. The Lead Respiratory Therapists also recorded the patients age, sex, diagnosis and number of treatments administered prior to discharge from the Emergency Center. Results: We performed 2 sample t-test statistical analysis on the patient data reported below, using Statistix software (Tallahassee FL). A p value of less than 0.05 was considered significant. The patients were asked to rank their breathing problem on the following three point scale;

1 = mild breathing distress

2 = moderate breathing distress

3 = severe breathing distress

Data: Micro Mist Circulaire p value

n 13 39

Age (years) 42.2 +/-20.7 51.1 +/- 22.4 .36

Resp Distress (1-3) 1.6+/- .51 1.8 +/- .66 .09

Disease Distribution (%)

Asthma 69% 62%

COPD 21% 23%

Bronchitis 10% 15%

Change Pre Post (lpm) 59.0+/- 47.5 41.4 +/- 51.6 .35

Change Pre Post (%) .29 +/- .24 .24 +/- .30 .11

Treatment Time (min) 11.3 +/- 3.9 7.5 +/- 2.7 .04

% pts requiring 2nd SVN 62% 31%

Conclusion: The two populations appear to be comparable for age and respiratory distress. There appears to be no difference in the change in peak flow for the two patient populations. The Circulaire required significantly less time to treat the patient. Also, 62% of the Micro Mist patients required a second treatment while 31% of the Circulaire patients required a second treatment prior to discharge from the Emergency Department. We conclude the Circulaire is superior to the Micro Mist due to the reduction in treatment time (personnel costs) and effectiveness (less repeat SVN).

OF-97-038

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