Diagnostic accuracy of hospitalist-performed hand-carried ultrasound echocardiography after a brief training program

BACKGROUND: The duration of training needed for hospitalists to accurately perform hand‐carried ultrasound echocardiography (HCUE) is uncertain. OBJECTIVE: To determine the diagnostic accuracy of HCUE performed by hospitalists after a 27‐hour training program. DESIGN: Prospective cohort study. SETTING: Large public teaching hospital. PATIENTS: A total of 322 inpatients referred for standard echocardiography (SE) between March and May 2007. INTERVENTION: Blinded to SE results, attending hospitalist physicians performed HCUE within hours of SE. MEASUREMENTS: Diagnostic characteristics of HCUE as a test for 6 cardiac abnormalities assessed by SE: left ventricular (LV) systolic dysfunction; severe mitral regurgitation (MR); moderate or severe left atrium (LA) enlargement; moderate or severe LV hypertrophy; medium or large pericardial effusion; and dilatation of the inferior vena cava (IVC). RESULTS: A total of 314 patients underwent both SE and HCUE within a median time of 2.8 hours (25th to 75th percentiles, 1.4 to 5.1 hours). Positive and negative likelihood ratios for HCUE increased and decreased, respectively, the prior odds by 5‐fold or more for LV systolic dysfunction, severe MR regurgitation, and moderate or large pericardial effusion. Likelihood ratios changed the prior odds by 2‐fold or more for moderate or severe LA enlargement, moderate or severe LV hypertrophy, and IVC dilatation. Indeterminate HCUE results occurred in 2% to 6% of assessments. CONCLUSIONS: The diagnostic accuracy of HCUE performed by hospitalists after a brief training program was moderate to excellent for 6 important cardiac abnormalities. Journal of Hospital Medicine 2009;4:340–349. © 2009 Society of Hospital Medicine.