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Τρίτη 27 Ιουνίου 2017

Chemotherapy-induced cardiomyopathy caused by Pemetrexed

Summary

Chemotherapy-related cardiac toxicity is a rare but serious adverse event in patients with cancer. Thus far, no case of serious cardiac toxicity of pemetrexed has been reported. We describe the case of a patient with advanced lung cancer and cardiomyopathy due to pemetrexed. A 59-year-old woman visited our hospital, and we found abnormal findings on a chest radiograph. She was diagnosed as having stage IV lung adenocarcinoma. Chemotherapy with cisplatin and pemetrexed every 3 weeks was initiated. After four cycles of chemotherapy, maintenance chemotherapy with pemetrexed was administered every 3 weeks. During the seventeenth cycle of pemetrexed, she had shortness of breath in her daily life. A chest radiograph showed an enlarged cardiothoracic ratio (66%), and the transthoracic echocardiogram demonstrated expansion of the left ventricle (diastolic diameter, 67 mm), severe global hypokinesis, and reduced left ventricular ejection fraction (28%). The coronary angiogram showed no coronary constriction. There was no delayed accumulation on the contrast-enhanced cardiac magnetic resonance imaging scan. After right heart catheterization, pathological results of a myocardial biopsy from the ventricular septum indicated no cardiac muscle hypertrophy, cardiac fibrosis, inflammatory cell infiltration, or myocyte disarray. Eventually, she was diagnosed as having pemetrexed-induced cardiomyopathy. Pemetrexed was discontinued, and furosemide, enalapril, and carvedilol were started. Then her symptoms and cardiac function improved. Early detection and discontinuation of causative agents are the most important treatment strategies in similar patients. Diuretics, angiotensin-conversion enzyme inhibitors, and beta-blockers may be effective for treating heart failure.



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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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