A Narrower Spacing of Electrodes and Atrial Septum Pacing
نویسندگان
چکیده
منابع مشابه
P waves during ectopic atrial rhythms in man: a study utilizing atrial pacing with fixed electrodes.
Threshold bipolar pacing was performed from one of 12 selected atrial sites with temporary implanted electrodes in 69 patients following open-heart surgery in order to study P wave polarity and morphology and the P-R interval during paced ectopic atrial rhythms. A negative P wave was recorded in lead I only with pacing the left atrium and only when pacing near the left pulmonary veins. A posit...
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the overall rate of atrial pacing lead dislodgement is estimated to be about 3%. these leads are generally repositioned via a second operation through opening the pacemaker pocket. some operators have introduced percutaneous techniques using snare system or deflectable catheters for this purpose. in this article we present our experience with five cases of percutaneous lead repositioning. three...
متن کاملAtrial lead placement at the lower atrial septum: a potential strategy to reduce unnecessary right ventricular pacing.
AIMS Right ventricular (RV) pacing has been shown to be potentially detrimental to left ventricular function. In conventional dual-chamber pacing the position of the atrial lead could influence duration of the atrio-ventricular (AV) intervals, which is one of the variables that could be associated with an increased percentage of RV pacing. We wanted to see if lead placement at selected atrial s...
متن کاملAtrial and Ventricular Pacing
The role of simultaneous and sequential atrioventricular (AV) stimulation in prevention of tachyeardia induction, and the underlying electrophysiologic mechanisms involved, were studied in 10 patients with documented paroxysmal reentrant supraventricular tachycardia (PSVT). Reentry circuit was localized to the AV node in seven of 10. The remaining three cases had Wolff-Parkinson-White (WPW) syn...
متن کاملHigh-resolution mapping of scar-related atrial arrhythmias using smaller electrodes with closer interelectrode spacing.
BACKGROUND The resolution of mapping is influenced by electrode size and interelectrode spacing. Smaller electrodes with closer interelectrode spacing may improve mapping resolution, particularly in scar. The aims of this study were to establish normal electrogram criteria in the atria for both 3.5-mm electrode tip linear catheters (Thermocool) and 1-mm multielectrode-mapping catheters (Pentara...
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ژورنال
عنوان ژورنال: Circulation Journal
سال: 2012
ISSN: 1346-9843,1347-4820
DOI: 10.1253/circj.cj-12-0077