Since detailed electrocardiogram (ECG) data were not routinely collected ... The underlying rhythm was obtained by programming the pacemaker to VVI rate of 40 beats per minute during the ...
During the 1980s Mayo Clinic implanters had a practice of using VVI pacemakers in SSS patients who had retrograde AV block, on the assumption that those patients would be resistant to pacemaker ...
The infant required transvenous ventricular pacing which controlled the arrhythmia by overdrive suppression. A permanent epicardial unipolar VVI pacemaker was implanted at one week of age.
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