Nair Sandeep G, Swerdlow Charles D
Cedars Sinai Heart Institute, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA.
Cedars Sinai Heart Institute, 8700 Beverly Boulevard, Los Angeles, CA 90048, USA.
Card Electrophysiol Clin. 2018 Dec;10(4):573-599. doi: 10.1016/j.ccep.2018.07.004.
The predominant structural mechanisms of transvenous lead dysfunction (LD) are conductor fracture and insulation breach. LD typically presents as an abnormality of electrical performance; the earliest sign usually is either oversensing or out-of-range pacing or shock impedance. Accurate diagnosis of LD requires discriminating patterns of oversensing and impedance trends that are characteristic of LD from similar patterns that occur in other conditions. Implantable cardioverter-defibrillators have advanced features to detect and mitigate the consequences of LD; these features operate both independently and in conjunction with remote monitoring networks.
经静脉导线功能障碍（LD）的主要结构机制是导线断裂和绝缘破损。LD通常表现为电性能异常；最早的迹象通常是感知过度、起搏或电击阻抗超出范围。LD的准确诊断需要区分LD特有的感知过度模式和阻抗趋势与其他情况中出现的类似模式。植入式心脏复律除颤器具有先进的功能来检测和减轻LD的后果；这些功能既可以独立运行，也可以与远程监测网络协同运行。
