在电图指导下,用于左心室后壁隔离的新型钻石尖温度控制导管的有效性和安全性
Hirosuke Yamaji1, Souhei Kawafuji2, Masaya Sano3
1Heart Rhythm Center, Okayama Heart Clinic, Takeda 54-1, Naka-Ku, Okayama, 703-8251, Japan. yamaji2@mac.com.
概括
带有电图 (EGM) 指导的新型钻石尖温度控制除 (DTA) 导管在左心房后壁隔离 (LAPWI) 中取得了很高的成功. 这种DTA导管为LAPWI程序提供更短的能量输送和有效的应用.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗器械 医疗器械
背景情况:
- 新型钻石尖温度控制除 (DTA) 导管用于左心房后壁隔离 (LAPWI) 的有效性需要进一步研究.
- 在临床环境中评估DTA导管的有效性对于推进废除技术至关重要.
研究的目的:
- 评估LAPWI的DTA导管在由电图 (EGM) 信号引导时的有效性和安全性.
- 为了比较DTA与EGM指导的首次通道成功率与EGM指导和没有EGM指导的传统灌导管.
主要方法:
- 一个单一中心的观察研究比较了三个组:DTA与EGM指导 (n=82),常规灌导管与EGM指导 (n=92),和灌导管没有EGM指导 (n=93).
- 所有小组都使用固定能量参数 (30W,15-20秒) 进行射频消光.
- 主要终点是第一次通过LAPWI的成功率.
主要成果:
- 使用EGM指导的DTA实现了较高的LAPWI第一通成功率 (93%) 与没有EGM指导的灌相比 (54%;p<0.001).
- 使用EGM指导进行DTA的成功率与使用EGM指导进行灌的成功率相似 (97%).
- 与EGM指导的DTA显示,与两个灌组相比,射频能量传递时间显著缩短,平均射频功率更高 (p<0.0001). 没有报告任何重大并发症.
结论:
- 新型的DTA导管,当与EGM指导一起使用时,在LAPWI中实现了高的首次通过成功率.
- 根据EGM指导,DTA导管能够提供短时间的能量和高平均射频功率,这使得它成为LAPWI的有效选择.
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