Endless loop tachycardia started by an atrial premature complex in a patient with a dual chamber pacemaker
نویسندگان
چکیده
منابع مشابه
Wide complex tachycardia in a patient with a dual chamber pacemaker.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . doi:10.1093/europace/eun312 Online publish-ahead-of...
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With the introduction of dual chamber pacemakers that have multiple atrial amplitude sensing values, selective P wave sensing is possible. Five consecutive patients were studied who had 1) retrograde atrioventricular conduction, 2) anterograde atrial signals that were at least 1.4 times larger than their corresponding retrograde atrial signals, and 3) dual chamber pulse generators that are capa...
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A 74-year-old man with a dual-chamber implantable cardioverter defibrillator implanted 3 years before experienced multiple ventricular tachycardias (VTs). All episodes were initiated by pacemaker-mediated tachycardia (PMT) that was either stopped by atrial undersensing or the tachycardia termination algorithm of the device. After the termination of PMT, two rapid ventricular paced beats, the fi...
متن کاملParadoxical atrial undersensing by a dual chamber pacemaker during atrial fibrillation.
This report describes paradoxical atrial undersensing by a dual chamber pacemaker in a patient with paroxysmal atrial fibrillation. Atrial undersensing was present only when the device was programmed to a high sensitivity but sensing normalized when a lower sensitivity was programmed. This unusual response should be differentiated from the recently documented lock-in behavior of pacemakers deli...
متن کاملLoss of atrial pacing in a patient with a dual-chamber permanent pacemaker: What is the mechanism?
1. Atrial oversensing due to lead integrity failure (fracture, insulation failure) or connector problems between the header and the lead. 2. Atrial lead displacement: no evidence of microor macrodisplacement was found on chest radiography. 3. Asynchronous mode of pacing (VOO) due to magnet or programming: device interrogation ruled out this differential diagnosis. The device was fully functiona...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1985
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(85)80398-3