Echocardiograms could be performed in 93 (89 percent) of 104 patients randomized to receive such studies; 11 patients either declined testing or were believed to be too ill for study. Of 93 echo studies, three (3 percent) were of poor quality and inadequate for diagnosis; 90 studies (97 percent) were technically satisfactory for diagnosis. Figure 1 summarizes echo findings in the 90 interpretable studies, nearly 70 percent of w hich had definite cardiac abnormalities. Results of echo testing w ere made available to physicians from less than 1 h to a maximum of 24 h after hospital admission (mean, 15 hours 13 minutes ±8 hours 12 minutes). One third of patients received echocardiography within 4 h of hospital admission, and more than half received it within 10 h of hospital admission. Eighteen patients (17 percent) randomized to receive echocardiograms and nine control patients (9 percent) had undergone elective echo study prior to hospitalization (p=.07); eight control patients (8 percent) also underwent echocardiography for clinical reasons during their current hospital stay. ventolin inhaler
Figure 1. Abnormalities detected by echocardiography among 104 patients randomized to receive this study.