theoretically occur with the release of intracellular electrolytes including potassium. [3][4] The ablation area is typically smaller in endobiliary RFA than in RFA for other lesions such as hepatocellular carcinoma. However, our observations suggest that a life-threatening hyperkalemia may occur even in endobiliary RFA. Close monitoring including electrocardiography and repeat blood examination is recommended, especially in patients with chronic kidney disease.
CONFLICT OF INTERESTT ADAHISA INOUE RECEIVED honoraria from Boston Scientific Japan and Japan Lifeline Co., Ltd, outside the submitted work. The other authors declare no conflict of interest for this article.