New Concepts in Pacemaker Syndrome

Farmer, Michael D and Estes, Mark NA III and Link, Mark S (2004) New Concepts in Pacemaker Syndrome. [Journal (Paginated)]

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After implantation of a permanent pacemaker, patients may experience severe symptoms of dyspnea, palpitations, malaise, and syncope resulting from pacemaker syndrome. Although pacemaker syndrome is most often ascribed to the loss of atrioventricular (A-V) synchrony, more recent data may also implicate left ventricular dysynchrony caused by right ventricular pacing. Previous studies have not shown reductions in mortality or stroke with rate-modulated dual-chamber (DDDR) pacing as compared to ventricular-based (VVI) pacing. The benefits in A-V sequential pacing with the DDDR mode are likely mitigated by the interventricular (V-V) dysynchrony imposed by the high percentage of ventricular pacing commonly seen in the DDDR mode. Programming DDDR pacemakers to encourage intrinsic A-V conduction and reduce right ventricular pacing will likely decrease heart failure and pacemaker syndrome. Studies are currently ongoing to address these questions.

Item Type:Journal (Paginated)
Keywords:VVI = ventricular-based, VVIR = rate modulated ventricular-based, A-V = atrioventricular, V-V = interventricular, V-A = ventricular-atrial, LBBB = left bundle branch block, LVEF = left ventricular ejection fraction, DDDR = rate modulated dual-chamber, SND = sinus node dysfunction, AAI = single-chamber atrial, AF = atrial fibrillation, LV = left ventricular, RV= right ventricular
Subjects:JOURNALS > Indian Pacing and Electrophysiology Journal
ID Code:4184
Deposited By: Indian Pacing and Electrophysiology, Journal
Deposited On:14 Apr 2005
Last Modified:11 Mar 2011 08:55

References in Article

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