[Apparently unusual causes of inhibition of demand unipolar pacemakers (author's transl)].
An unusual behaviour observed in five demand endoventricular unipolar pacemakers is reported: the pacing were inhibited by coughing, deep inspirations and Valsalva manoeuvre. The findings allowed to point following remarks: a) the inhibition is related to myopotentials caused by respiratory movements which involve a large number of thoracic skeletal muscles; b) the myopotential characteristics may be differents in different patients; c) even electronic sensing characteristics may be slightly different in the same kinds and models of the same manufacturer.
D000368:Aged; D001145:Arrhythmias, Cardiac / Q000628:therapy*; D003371:Cough / Q000150:complications; D004417:Dyspnea / Q000150:complications; D005260:Female; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial
Cause apparentemente insolite di inibizione dei pacemakers unipolari a domanda.