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KMID : 0383820120730040231
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Tuberculosis and Respiratory Diseases
2012 Volume.73 No. 4 p.231 ~ p.233
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A Case of Acute Pulmonary Thromboembolism after Taking Tadalafil
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Lee Jin-Woo
Kwon Ji-Hyun
Lee Chang-Hoon
Lee Sang-Min
Yim Jae-Joon
Yoo Chuy-Gyu
Kim Young-Whan
Han Sung-Koo
Park Young-Sik
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Abstract
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Tadalafil is a phosphodiesterase-5 inhibitor (PDE5I), which is widely used to treat erectile dysfunction. Although PDE5Is have excellent safety profiles, and most of the side effects are mild, rare serious adverse events have been reported in association with PDE5Is. Thrombosis is one of those events, and a few previous reports have suggested the association of PDE5Is with thrombosis. We report the case of a 61-year-old male who developed pulmonary embolism combined with pulmonary infarction directly after taking tadalafil. Both the patient and the physician suspected tadalafil as the culprit drug, as the patient was in an otherwise healthy condition. However, after extensive evaluation, we noticed that factor VIII levels were elevated. Prior reports suggesting the association between thrombosis and PDEIs either lack complete information on coagulation factors, or show inconsistencies in their results. Physicians should operate caution prior to accepting the diagnosis of adverse drug reaction.
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KEYWORD
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Pulmonary Embolism, Pulmonary Infarction, Tadalafil, Phosphodiesterase 5 Inhibitors, Factor VIII
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