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A Method for Estimating Endocardial Electrode Stability
Author(s) -
STIRBYS PETRAS,
SKUCAS JONAS,
ANDZIUKEVICIUS GIEDRIUS
Publication year - 1990
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.1990.tb06904.x
Subject(s) - medicine , electrode , ablation , cardiology , endocardium , diaphragmatic breathing , phrenic nerve , fixation (population genetics) , diastole , biomedical engineering , respiratory system , blood pressure , population , chemistry , alternative medicine , environmental health , pathology
STIRBYS, P., ET AL.: A Method for Estimating Endocardial Electrode Stability. Assessment of cardiac pacing electrode stability following implantation is of major importance. We describe a method of testing electrode stability using a provocative test. The method includes synchronized electrical pacing of the left phrenic nerve by an especially designed external pacemaker. A positive response is abrupt, a diaphragmatic contraction, which in turn induces an abrupt heart movement in its diastole, its relaxation phase. Fifty‐six various endocardial electrodes were tested in this fashion. Seven electrodes, one with flange tip, two tined, and four had no fixation dislodged after this pacing test. Insignificant elevation of acute ventricular pacing threshold was observed. While this method appears to be advantageous, additional clinical data is necessary.