Transmitted water pump vibration precluding intraprocedural electrocardiographic monitoring in juxtacardiac microwave ablation of liver tumor

摘要

Microwave (MW) is an ablation technique that can be used in cases in which the heat-sink effect is a concern (1). Unlike radiofrequency ablation, in which transient brady-arrhythmia is a known occurrence, arrhythmia related to MW ablation has not been reported (1,2). Because of the relative novelty of the technique, the effect of MW in the juxtacardiac location remains unknown, so physiologic monitoring remains crucial in such cases. A 70-year-old man with alcoholic liver cirrhosis underwent radiofrequency ablation of a solitary 2.2-cm segment 4A hepatocellular carcinoma.