Myopotential inhibition of unipolar pacemakers.
نویسندگان
چکیده
منابع مشابه
Interference effect of myopotenitals on function of unipolar demand pacemakers.
Of 44 patients with demand pacemakers, 33 had pacemaker rhythm and were examined for failure in pacemaker function produced by myopotentials. Most patients were subjected to a standard experimental programme, with simultaneous recording of electrocardiogram and electromyogram. In 28 of the 33 patients the pacemaker was inhibited by muscle potentials. Three patients had suffered symptoms which c...
متن کاملTemporary inhibition of permanently implanted demand pacemakers.
Temporary inhibition of permanently implanted demand pacemakers has been previously described. Demand pacemakers may be inhibited by waving a magnet over the region of the pacemaker generator or by chest wall stimulation. The former may not inhibit most of the bipolar pacemakers, whereas the latter may be time consuming and may casue patient discomfort. Another method is described which utilize...
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asymptomatic after the unipolar lead was changed to a bipolar system. Monitoring artificial pacemaker function is an important application of ambulatory electrocardiography. Of 48 patients with suspected pacemaker malfunction reported by Iyengar et al., 24-hour monitoring detected failure in nine in whom routine examination, standard electrocardiograms, and pacemaker evaluation clinics failed t...
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A patient is described in whom myopotentials orginating from the anterior abdominal wall muscle suppressed the implanted demand pacemaker despite its bipolar mode of action. This phenomenon was shown by simultaneous recording of the electrocardiogram the electromyogram. At operation, a defect in the insulation of a previously repaired epicardial electrode was found lying in close proximity to t...
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Myopotential oversensing in implantable defibrillators causing inhibition of pacing and inappropriate therapies is well described. Current literature is dominated by reports of diaphragmatic muscle as the source of such far-field oversensing. Those reporting pectoral muscle sources were invariably due to unipolar sensing circuits, incorrect DF-1 connections or inappropriate programming. We repo...
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ژورنال
عنوان ژورنال: BMJ
سال: 1983
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.287.6403.1430