Copyright © 2013 Canadian Cardiovascular Society. This strategy obviates the need to reduce ventricular sensitivity and thus may be an effective alternative to biventricular pacing complicated by TWOS. A strategy of left-ventricular-only pacing was used to eliminate TWOS. Consistent biventricular pacing was limited by intermittent T-wave oversensing (TWOS). Khoo, Clarence Bennett, Matthew Chakrabarti, Santabhanu LeMaitre, John Tung, Stanley K KĪ man aged 75 years and with nonischemic cardiomyopathy had implantation of a biventricular implantable cardiac defibrillator (ICD). For permissions please email: left-ventricular-only pacing to eliminate T-wave oversensing in a biventricular implantable cardiac defibrillator. Published on behalf of the European Society of Cardiology. ![]() In patients with a high-grade AV block and preserved LV function requiring a high percentage of ventricular pacing, RVHS pacing does not provide a protective effect on left ventricular function over RVA pacing in the first 2 years. A significantly greater time was required to place the lead in the RVHS position (70 ± 25 vs. ![]() There were no significant differences in heart failure hospitalization, mortality, the burden of atrial fibrillation, or plasma brain natriutetic peptide levels between the two groups. However, there was no significant difference in intra-patient change in LVEF between confirmed RVA (n = 85) and RVHS (n = 83) lead position (P = 0.43). 60Â☑2 ms), and the Tp-Te interval in bi-ventricle pacing group was shorter than in left or right ventricle pacing group (P 90% ventricular pacing and preserved baseline LVEF >50%, to receive pacing at the RVA (n = 120) or RVHS (n = 120). Electrocardiogram derived Tp-Te interval was significantly prolonged post pacing (92Â☑1, 91Â☑0, and 79Â☑3 ms vs. Since the combination of a normal bipolar voltage and a unipolar pacing threshold 0.05). Pacing thresholds correlate with CF in human not previously ablated LA. Both increased to 80% specificity and 74% sensitivity for sites with normal bipolar voltage and a pacing threshold cutoff value of 2.85 mA. Dyssynchrony was more pronounced in the DDD(R)-group than in the AAI(R)-group at the 12 months follow-up (P 35% remains unclear.We studied 40 patients, all LVEF ≥ 35%, who had undergone implantable cardioverter-defibrillator implantation with RV pacing 10 g) was 3.25 mA for unipolar pacing with 69% specificity and 73% sensitivity. Left ventricular ejection fraction (LVEF) was measured using three-dimensional echocardiography. ![]() Tissue-Doppler imaging was used to quantify LV dyssynchrony in terms of number of segments with delayed longitudinal contraction (DLC). Fifty consecutive patients were randomized to AAI(R) or DDD(R)- pacing. We studied regional left ventricular (LV) dyssynchrony and global LV function in 50 consecutive patients with sick sinus syndrome (SSS) randomized to either atrial pacing or dual chamber RV- pacing. Increasing evidence from randomized trials and experimental studies indicates that right ventricular (RV) pacing may induce congestive heart failure. DDD(R)- pacing, but not AAI(R)- pacing induces left ventricular desynchronization in patients with sick sinus syndrome: tissue-Doppler and 3D echocardiographic evaluation in a randomized controlled comparison.Īlbertsen, Andi Eie Nielsen, Jens Cosedis Poulsen, Steen Hvitfeldt Mortensen, Peter Thomas Pedersen, Anders Kirstein Hansen, Peter Steen Jensen, Henrik Kjaerulf Egeblad, Henrik
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