0 a drawing or electronic image made by an electrocardiograph --
The study team reviewed the literature and found little justification for routine use of preoperative x-rays, electrocardiograms, and laboratory tests.
Neither arrhythmias nor left ventricular hypertrophy were evident on the electrocardiogram.
The flow phases began with more and more delay in reference to the electrocardiogram.
The electrocardiogram showed right atrial enlargement and left ventricular hypertrophy.
Signal-averaged electrocardiograms were recorded after informed consent was obtained from the children and/or their parents.
Type of operation was identifiable as a risk factor for abnormalities on 24-hour electrocardiogram.
The electrocardiogram was normal, and the chest radiograph showed mild cardiomegaly with normal lung fields.
While the electrocardiogram and the rectal temperature were continuously monitored, animals were installed supine in a stereotaxic apparatus.
