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Fatal Myocarditis Following Administration of Zoledronic Acid: A Case Report

Authors:

R. Samaranayake ,

University of Colombo, LK
About R.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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S. Gunawardena,

University of Colombo, LK
About S.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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S. M. H. D. Senadhipathi,

University of Colombo, LK
About S. M. H. D.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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N. V. Ewaduge,

University of Colombo, LK
About N. V.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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M. A. D. P. K. Abeyratne,

University of Colombo, LK
About M. A. D. P. K.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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T. D. D. D. Siriwardena

University of Colombo, LK
About T. D. D. D.
Department of Forensic Medicine and Toxicology, Faculty of Medicine
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Abstract

Myocarditis is a potentially life-threatening condition which occurs due to inflammation of the cardiac muscle. It has a multitude of causes including certain medications. Zoledronic acid is a bisphosphonate given as an intravenous preparation for bone related diseases. Medical literature provides details about only very few cases of Zoledronic acid induced myocarditis and all of them were non-fatal. We report a fatal case of myocarditis due to administration of intravenous Zolendronic acid. A 40-year-old male with a history of multiple joint pain and swelling for one week and right knee joint swelling for three months was administered intravenous Zolendronic acid. One day after administration of Zolendronic acid patient developed dizziness, and eventually became drowsy. His ECG revealed ST depressions in leads I, II, aVF, as well as leads V3 to V5. Highly sensitive Troponin I was elevated to 2195.3 pg/ml (<26.5 pg/ml) and Echocardiogram showed an ejection fraction of 30% with hypokinetic wall segments and regional wall motion abnormalities. He went into cardiogenic shock and was pronounced dead. At the autopsy, macroscopic examination did not reveal any noticeable fatal pathology. however histological examination of the myocardium reveals diffuse infiltration mononuclear cells with myocyte necrosis. This case highlights importance of being vigilant in using this drug.
How to Cite: Samaranayake, R., Gunawardena, S., Senadhipathi, S.M.H.D., Ewaduge, N.V., Abeyratne, M.A.D.P.K. and Siriwardena, T.D.D.D., 2022. Fatal Myocarditis Following Administration of Zoledronic Acid: A Case Report. Medico-Legal Journal of Sri Lanka, 10(2), pp.33–35. DOI: http://doi.org/10.4038/mljsl.v10i2.7460
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Published on 31 Dec 2022.
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