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She was also complicated with non-ischaemic dilated cardiomyopathy with reduced ejection fraction, consistent with arrhythmia-induced cardiomyopathy (AiCM), along with left atrial and left ventricular thrombi and thromboembolism in multiple organs. Rate control with beta-blockers was not effective. With the administration of amiodarone after adequate anticoagulation therapy, she returned to sinus rhythm, and the ejection fraction was restored. This case is instructive in that AiCM with AF can cause thrombosis in the left ventricle, and the patient may present with worsening intermittent claudication as a result of systemic embolism.<\/jats:p>","DOI":"10.1136\/bcr-2023-257151","type":"journal-article","created":{"date-parts":[[2024,3,7]],"date-time":"2024-03-07T00:55:12Z","timestamp":1709772912000},"page":"e257151","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Atrial fibrillation-induced cardiomyopathy presenting with bilateral intermittent claudication associated with intracardiac thrombi"],"prefix":"10.1136","volume":"17","author":[{"given":"Ryoichi","family":"Inoue","sequence":"first","affiliation":[{"name":"Cardiovascular Medicine, Kyoto University Graduate School of Medicine Faculty of Medicine, Kyoto, 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