Mechanical haemolytic anaemia assessed with four-dimensional flow cardiac magnetic resonance.
Mechanical haemolytic anaemia assessed with four-dimensional flow cardiac magnetic resonance.
复制标题
用四维血流心脏磁共振评估机械性溶血性贫血。
DOI：
10.1093/ejcts/ezz031
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Usui A.
中科院分区：
文献类型：
--
作者：
Uchida W;Tokuda Y;Takehara Y;Usui A.
一位66岁的女性在使用分支涤纶移植物进行全主动脉弓置换术后2年发生了明显的溶血性贫血。超声心动图证实二叶主动脉瓣狭窄。四维血流磁共振成像显示，主动脉瓣沿着出现射流，以及升主动脉处扭结人工血管内的涡流和湍流。她接受了再次手术，以置换主动脉瓣并纠正扭结。介入后估计的能量损失从介入前的4.3 mJ/心动周期减轻至2.9 mJ/心动周期。再次手术后，患者贫血立即消退。
A 66-year-old woman developed marked haemolytic anaemia 2 years after total aortic arch replacement using a branched Dacron graft. Echocardiography confirmed bicuspid aortic valve stenosis. A four-dimensional flow magnetic resonance imaging revealed a jet flow arising from the aortic valve along with the vortex and turbulent flow inside the kinked prosthetic graft at the ascending aorta. She underwent a reoperation to replace the aortic valve and correct the kinking. The estimated energy loss after intervention was relieved to 2.9 mJ/cardiac cycle from 4.3 mJ/cardiac cycle before intervention. The patient’s anaemia resolved immediately after the reoperation.