Electrode surface areas, pulse duration and stimulation threshold. Acute and chronic study with endocardial unipolar electrodes (author's transl)

Acute and chronic voltage-threshold of cardiac stimulation was studied in patients with complete A-V block. Endocardial unipolar electrode with three different cathodial surface areas were used (54, 22 and 12 sqmm), and tested with rectangular stimulus of variable duration (from 0.2 to 3.5 msec.). T...

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Bibliographic Details
Published inGiornale italiano di cardiologia Vol. 7; no. 4; p. 380
Main Authors Antonioli, G E, Grassi, G, Baggioni, G F, Bagni, B
Format Journal Article
LanguageItalian
Published Italy 1977
Subjects
Electric Stimulation
Electrodes, Implanted
Endocardium
Heart Block - therapy
Humans
Pacemaker, Artificial
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Summary:Acute and chronic voltage-threshold of cardiac stimulation was studied in patients with complete A-V block. Endocardial unipolar electrode with three different cathodial surface areas were used (54, 22 and 12 sqmm), and tested with rectangular stimulus of variable duration (from 0.2 to 3.5 msec.). The results show that the threshold values, at first implantation and at pulse-generator replacements, are low when short-duration stimulus and smaller electrode surface area are used. The practical advantages of this study are evident.
ISSN:0046-5968