title: A free-floating left atrial thrombus develops intermittent entrapment in the mid-ventricle during diastole.
abstract: Free-floating left atrial thrombi are rare. Here we report a case of a 75-year-old woman with atrial fibrillation who was admitted for treatment of acute myocardial infarction. A free-floating left atrial thrombus was found incidentally on echocardiography. Ten days after percutaneous coronary intervention, the patient had mild faintness with transient hypotension, and it was found that the left atrial thrombus had developed intermittent entrapment in the mid-ventricle during diastole, with abrupt rebound back to the left atrial cavity during systole. Urgent removal of the thrombus was performed successfully. Although the free-floating thrombus had appeared to be spherical, like a ball thrombus, on echocardiography, the excised thrombus was pedunculated. A cut section revealed a laminated thrombus with an onion-skin-like appearance.
authors: Department of Cardiovascular and Respiratory Medicine, Akita University Graduate School of Medicine, Hondoh 1-1-1, Akita 010-8543, Japan.
authors: Mikiko
authors: M
authors: Fujiwara
authors: Hiroyuki
authors: H
authors: Watanabe
authors: Yasunori
authors: Y
authors: Oguma
authors: Genbu
authors: G
authors: Yamaura
authors: Kazuyuki
authors: K
authors: Ishibashi
authors: Hiroshi
authors: H
authors: Yamamoto
authors: Kiyoshi
authors: K
authors: Nobori
authors: Kenji
authors: K
authors: Iino
authors: Fumio
authors: F
authors: Yamamoto
authors: Hiroshi
authors: H
authors: Ito
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary; D000925:Anticoagulants / Q000627:therapeutic use; D001281:Atrial Fibrillation / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D003971:Diastole; D017548:Echocardiography, Transesophageal; D005260:Female; D006331:Heart Diseases / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D017379:Hypertrophy, Left Ventricular / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D033162:Incidental Findings; D009203:Myocardial Infarction / Q000175:diagnosis* / Q000628:therapy; D011237:Predictive Value of Tests; D017131:Thrombectomy; D013927:Thrombosis / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D016896:Treatment Outcome; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis* / Q000503:physiopathology / Q000628:therapy; D016277:Ventricular Function, Left
chemical_list: D000925:Anticoagulants