Premium
A New Transvenous Lead for Both Atrial and Ventricular Pacing
Author(s) -
KRUSE I.,
PETERS P.,
RYDÉN L.
Publication year - 1983
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.1540-8159.1983.tb04418.x
Subject(s) - medicine , lead (geology) , ventricular pacing , cardiology , atrium (architecture) , ventricle , biomedical engineering , atrial fibrillation , heart failure , geomorphology , geology
A new transvenous fined unipolar lead (Medtronic SP 342) has been implanled in 56 patients; 35 leads were positioned in the atrium and 34 in the ventricle. The lead comprises a trifilar DBS‐conductor within an insulation of poiyurelhane. four symetrically placed polyurethane tines furnished with scallops and a platinum‐indium ring‐tipped electrode. The scallops in the tines ensure flexibility and a small effective diamclerof the lead which makes the choice of vein less critical than with most previous lined leads. It allows use of the same normally sized vein for a second lead for dual‐chamber sensing pacing. Mean atrial and ventricular electrogram amplitudes (SD) were 4.6 ± 1.2 mV and 8.8 ± 4.4 mV; mean atrial and ventricular stimulation thresholds were 0.8 ± 0.3 V and 0.4 ± 0.2 V; and mean a trial and venlricular lead impedances were 415 ± 114 ohms and 456 ± 105 ohms, respectively. The results of this study show that the SP 342 lead is useful especially in dual chamber systems.