Abstract:
BACKGROUND:The purpose of this study was to evaluate the feasibility of the use of a quadripolar left ventricular (LV) lead for cardiac resynchronization therapy and to compare its acute and mid-term outcomes with those obtained with bipolar leads. Cardiac resynchronization exhibits a high incidence of problems involving the LV lead when conventional leads are used, and these problems may be minimized by using multipolar leads. METHODS:We gathered clinical, implant, and follow-up data at 3 and 9 months from 21 consecutive patients in whom a quadripolar (Group Q) or bipolar (Group B) lead was used for a biventricular defibrillator implant. RESULTS:The leads were successfully implanted in all of the patients. In Group B, more than one lead was used in 20% (p = 0.048) of cases. There were no clinical differences or differences in the implant parameters between the two groups except for the radiation dose, which was greater in group B (p = 0.035). The incidence of problems related to the LV lead during follow-up was higher in group B, but the difference was not significant (42.9% vs. 23.8%, p = 0.326). The use of more than one LV lead was the only variable that was significantly associated with lead-related problems during follow-up (p = 0.03; OR = 10.8; 95% CI 1.07-108.61). CONCLUSIONS:The quadripolar lead was associated with excellent implantation success rates and mid-term performance. The multi-programmability capabilities of quadripolar leads facilitated the achievement of implant goals and helped to reduce problems during the implant and follow-up.
journal_name
Cardiol Jjournal_title
Cardiology journalauthors
Arias MA,Pachón M,Puchol A,Jiménez-López J,Rodríguez-Padial Ldoi
10.5603/cj.2012.0087subject
Has Abstractpub_date
2012-01-01 00:00:00pages
470-8issue
5issn
1897-5593journal_volume
19pub_type
杂志文章abstract:BACKGROUND:Reduced heart rate variability (HRV) is associated with a poor outcome in patients with sinus rhythm (SR) or atrial fibrillation (AF). However, cut-off points for HRV measures differ between SR and AF. We hypothesized that a global index of 24-hour HRV based on evaluation of scatterplot would describe HRV ir...
journal_title:Cardiology journal
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abstract::We describe the case of a 57 year-old woman with NSTE ACS, a history of recurrent and prolonged epistaxis, and low prior cardiovascular risk. Additional findings revealed anemia and an aneurysm in her central nervous system. During her hospital stay, hereditary hemorrhagic telangiectasia (HHT) was diagnosed. After app...
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pub_type: 杂志文章,随机对照试验
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更新日期:2011-01-01 00:00:00
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pub_type: 杂志文章,多中心研究
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pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
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更新日期:2020-01-01 00:00:00
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doi:
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pub_type: 杂志文章,meta分析,评审
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doi:
更新日期:2007-01-01 00:00:00
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pub_type: 传,历史文章,杂志文章
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更新日期:2011-01-01 00:00:00
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