Abstract
We conducted a retrospective study to identify electrocardiogram (ECG) and echocardiogram utilization among patients presenting for a follow-up cardiology evaluation with innocent heart murmur between 2012 and 2014. The 2014 echocardiogram Appropriate Use Criteria was applied. We observed high rates of ordering ECGs and echocardiograms on follow-up visits (79% and 36%); only 1 patient had an appropriate indication for echocardiogram while the rest had rarely appropriate indication. Having had an ECG done did not affect echocardiogram ordering behavior. Older patient age was the only factor associated with a higher likelihood for ordering echocardiograms on follow-up visit (odds ratio = 1.016, P = .021). In this small sample study, we noticed high rates of test utilization and low-probability utilization of echocardiogram in the recurrent evaluation of children with innocent heart murmur. A larger, multicenter prospective study to investigate patterns and drivers of test utilization in children with innocent heart murmur presenting for a follow-up cardiology visit is needed.
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