Wase A, Natale A, Dhala A A, Deshpande S, Sra J S, Blanck Z, Maglio C, Jazayeri M R, Akhtar M
Wisconsin Electrophysiology Group, University of Wisconsin-Milwaukee, Milwaukee Heart Institute, Sinai Samaritan Medal Center, USA.
Pacing Clin Electrophysiol. 1995 Jun;18(6):1327-30. doi: 10.1111/j.1540-8159.1995.tb06975.x.
Implantable cardioverter defibrillators have an established role in the management of life-threatening tachyarrhythmias. These devices use sophisticated sensing circuitry to detect and promptly treat a vast majority of these arrhythmias. However, they are not foolproof. We report one case where the device failed to sense every other QRS complex during induced ventricular fibrillation due to marked electrical alterans. Thus, undersensing can be a potentially fatal problem despite the use of auto adjustable gain.
植入式心脏复律除颤器在危及生命的快速心律失常管理中发挥着既定作用。这些设备使用复杂的传感电路来检测并迅速治疗绝大多数此类心律失常。然而，它们并非万无一失。我们报告了一例因明显的电交替现象，该设备在诱发心室颤动期间未能感知每隔一个的QRS波群。因此，尽管使用了自动可调增益，感知不足仍可能是一个潜在的致命问题。
