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Electrolysis-a factor in cardiac pacemaker electrode failure

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1 Author(s)

During continuous pacing experiments at the University of Missouri Medical Center, Columbia, with the micromodule pacemaker receiver' implanted on the left ventricle of thirty-six mongrel dogs in complete heart block, it was observed that after 24 days in one case, 52 days in another, and 35 days in a third, micromodules with stainless steel electrodes failed to pace. Upon reoperation it was discovered that the positive electrode of one module had been reduced to a short stub. In another module the positive electrode was loose, disrupting the circuit. In the third module the positive electrode was completely missing.

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Bio-medical Electronics, IEEE Transactions on  (Volume:10 ,  Issue: 4 )