• Chest · Feb 2022

    Case Reports

    Recurrent Massive Hemothorax of Unknown Etiology in an 85-Year-Old Man.

    • Yuki Okamatsu, Kazuya Tsubouchi, Takeshi Iwasaki, Tomoya Nakamura, Tadayuki Nakashima, Kousei Nakatsuru, Yuriko Takahata, and Taishi Harada.
    • Department of Respiratory Medicine, Japan Community Health Care Organization Kyushu Hospital, Fukuoka, Japan.
    • Chest. 2022 Feb 1; 161 (2): e103-e110.

    Case PresentationAn 85-year-old Japanese man, who was taking aspirin and edoxaban for previous myocardial infarction and atrial fibrillation, came to our hospital with a chief complaint of dyspnea for 3 weeks. Chest radiography showed a massive left pleural effusion (Fig 1A). Analysis of pleural fluid showed an elevated hematocrit level at 32.8% (blood hematocrit level, 32.0%), and he was diagnosed with hemothorax. However, he had neither coagulation disorder nor thrombocytopenia, and the pleural effusion was negative for atypical cells. These findings suggested that the antithrombotic and anticoagulant medications might have induced the hemothorax.Copyright © 2021 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

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