Why the study?
Are pervenous atrial electrodes effective and safe for P-synchronous pacing?
Are pervenous atrial electrodes effective and safe for P-synchronous pacing?
Pervenous atrial electrodes can be used for P-synchronous pacing, but proper fixation in the subclavian fossa is critical due to a high risk of electrode displacement.
Answers are grounded in this paper and cite their sources.
High displacement rates caution against routine use; hypothesis-generating for refined fixation in prospective P-synchronous pacing studies.
“Atricor” P-synchronous pacemakers have been installed in 11 patients by the use of pervenous electrodes. At the follow-up, 8 patients still had P-synchronous pacemakers working, whereas in 2 cases “Ectocar” (“demand”) had been installed on account of non-functioning atrial electrodes. One patient received a temporary “demand” pacemaker because of cardiac surgery. In 1 patient, a pervenous atrial electrode has been used for atrial pacing as treatment for sinus bradycardia. This pacemaker has now functioned for 1 year. In 5 patients, surgical replacement of displaced atrial electrodes has been necessary. Proper fixation of the atrial electrode in the subclavian fossa is vital for successful P-synchronous pacing of longer duration.
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Cappelen et al. (1974) studied this question.
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