Abstract
Purpose
Antithrombotic therapy could trigger diffuse alveolar hemorrhage (DAH), and there are several case reports of DAH that occurred during antithrombotic therapy (DAH-AT). However, little is known about the clinical features and outcomes of DAH-AT. The purpose of this study was to clarify the features and mortality of DAH-AT.
Methods
76 consecutive patients with DAH who were admitted to our hospital between January 2003 and April 2014 were retrospectively reviewed to identify the clinical features and outcomes of DAH-AT. The primary outcome was 90-day mortality.
Results
Of the 76 patients with DAH, 39 patients (51 %) had DAH-AT, and 37 patients (49 %) had DAH that occurred with no antithrombotic therapy (DAH-NAT). Of the patients with DAH-AT, 25 (64 %) were taking aspirin, 14 (36 %) were taking warfarin, 5 (13 %) were taking clopidogrel sulfate, and 4 (10 %) were taking cilostazol. Pre-existing cardiac disease was present in 23 (59 %) DAH-AT cases and 5 (14 %) DAH-NAT cases. Logistic regression analysis was used to assess the effect of antithrombotic therapy on the mortality of DAH patients, and no significant difference in survival was seen with antithrombotic therapy (OR 1.18, 95 % CI 0.38–3.78).
Conclusions
Antithrombotic therapies had no effect on the 90-day mortality of DAH patients.
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Abbreviations
- BAL:
-
Bronchoalveolar lavage
- CI:
-
Confidence interval
- DAH:
-
Diffuse alveolar hemorrhage
- DAH-AT:
-
Diffuse alveolar hemorrhage that occurred during antithrombotic therapy
- DAH-NAT:
-
Diffuse alveolar hemorrhage that occurred with no antithrombotic therapy
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Acknowledgments
Otoshi Takehiro takes responsibility for the content of this manuscript, including the data and analysis. None of the authors declare any conflicts of interest and have financial relationships to disclose. The authors would also like to thank Dr. Kogo and Dr. Teraoka for helping with data collection.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of retrospective study, formal consent is not required.
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Otoshi, T., Kataoka, Y., Nakagawa, A. et al. Clinical Features and Outcomes of Diffuse Alveolar Hemorrhage During Antithrombotic Therapy: A Retrospective Cohort Study. Lung 194, 475–481 (2016). https://doi.org/10.1007/s00408-016-9873-4
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DOI: https://doi.org/10.1007/s00408-016-9873-4