Vanderbilt Heart and Vascular Institute, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
J Cardiovasc Electrophysiol. 2013 Sep;24(9):1047-50. doi: 10.1111/jce.12134. Epub 2013 Apr 11.
St. Jude Riata family ICD leads are subject to an FDA class I recall due to insulation failure, cable extrusions, and a high rate of electrical failures. We present multiple cases of large intravascular thrombus formation adherent to externalized conductor cables on Riata leads. Our observations highlight a previously unknown risk of large or calcified thrombus formation involving externalized conductors. We suggest that these leads should be screened for thrombi prior to potential lead extraction to determine the safest approach. Serial echocardiography may help detect progressive thrombus formation. The role of systemic anticoagulation for prevention or treatment of these thrombi remains unclear.
圣犹达 Riata 系列 ICD 导线由于绝缘故障、电缆外溢和高电气故障发生率，被 FDA 召回。我们介绍了多个 Riata 导联上外露导体电缆上附着的大血管内血栓形成的病例。我们的观察结果突出了一个以前未知的涉及外露导体的大或钙化血栓形成的风险。我们建议在潜在的导线拔除之前，对这些导线进行血栓筛查，以确定最安全的方法。连续超声心动图可能有助于检测进行性血栓形成。全身抗凝在预防或治疗这些血栓中的作用仍不清楚。
