Butera Brian C, Grazette Luanda P, Lawrence Tracy, Bowdish Michael E, Yoon Andrew J
Department of Internal Medicine, Division of Cardiovascular Medicine, University of Southern California, Los Angeles, CA, USA.
Department of Surgery, Division of Cardiothoracic Surgery, University of Southern California, Los Angeles, CA, USA.
Case Rep Cardiol. 2017;2017:9072523. doi: 10.1155/2017/9072523. Epub 2017 Sep 28.
The incidence of ramp test echocardiogram-associated embolic events in the setting of therapeutic anticoagulation is likely rare and has not been reported. We present such a case in a patient with a HeartMate II left ventricular assist device (LVAD) whose serial head computed tomography images, deteriorating clinical course, and the multiembolic nature of the event suggest causality. If the pretest probability of pump thrombosis in an individual LVAD patient is sufficiently high, the potential risks of performing a ramp study echocardiogram may not be warranted, even in the setting of adequate anticoagulation.
在治疗性抗凝情况下,斜坡试验超声心动图相关栓塞事件的发生率可能很低,且尚未见报道。我们报告了一例植入HeartMate II左心室辅助装置(LVAD)的患者出现此类情况,其系列头颅计算机断层扫描图像、不断恶化的临床病程以及事件的多栓塞性质提示存在因果关系。如果单个LVAD患者泵血栓形成的预测试概率足够高,那么即使在抗凝充分的情况下,进行斜坡试验超声心动图检查的潜在风险可能也不合理。