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Novice Accuracy in Ultrasound and Stethoscope Study (NAUSS)
Christopher M Howell1,2,3,4,5,6, Andrea L Kaelin1,2,3,4,5,6, Brian M Pennington1,2,3,4,5,6
1Christopher M. Howell, DSc, MSc, MPAS, PA-C, MBA , is an associate professor in the College of Arts and Science at Miami University in Oxford, Ohio.
Introduction:
The purpose of this noninferiority study was the accurate determination of valvular heart disease, using bedside echocardiogram as compared to stethoscope, by a novice clinician examiner.
Methods:
We conducted a single university, single program study to investigate the use of bedside ultrasound in the hands of a novice clinical user, defined as someone with fewer than 2 years of clinical education. We enrolled 8 examinees with evidence of valvular heart disease to be assessed by 13 subjects.
Results:
Descriptive statistics revealed echocardiogram accuracy of 56% compared to 44% accuracy with stethoscope, though not statistically significant. Interestingly, 31% of subjects obtained equal measures with both instruments. Correlation proficiency between both modalities was also observed.
Discussion:
There is no statistically significant difference in novice examiner diagnostic accuracy using point-of-care echocardiograms for examination of valvular heart disease when compared with a stethoscope.
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