Varriale P, Kwa R P, Vyas P
Chest. 1982 Dec;82(6):787-8. doi: 10.1378/chest.82.6.787.
The cause of pacemaker malfunction in a patient having intermittent pacing failure associated with diminished pacer stimuli was not determined during conventional intraoperative electrical testing. A modest manual pull on the lead, termed the "lead tug" sign, induced an inordinately high lead impedance and established lead fracture as the etiology. The "lead tug" maneuver is proposed as a useful procedure during stimulation studies for the detection of early lead fracture, not apparent from the x-ray film or usual testing protocol.
在一名患者中，起搏器出现间歇性起搏失败且起搏刺激减弱，在传统的术中电测试期间未确定其故障原因。对导线进行适度的手动牵拉，即所谓的“导线牵拉”征，导致导线阻抗异常升高，并确定导线断裂为病因。“导线牵拉”操作被提议作为刺激研究期间检测早期导线断裂的一种有用方法，这在X线片或常规测试方案中并不明显。
