Left atrial myxoma induced acute ST-segment elevation myocardial infarction

2017 ◽  
Vol 32 (12) ◽  
pp. 809-811 ◽  
Author(s):  
Yunyan Zhang ◽  
Yang Lu ◽  
Ruming Xu ◽  
Yuchen Xiao ◽  
Ying Gu
Author(s):  
António Fontes ◽  
Nuno Dias-Ferreira ◽  
Anabela Tavares ◽  
Fátima Neves

Abstract Background Myocarditis is an uncommon, potentially life-threatening disease that presents with a wide range of symptoms. In acute myocarditis, chest pain (CP) may mimic typical angina and also be associated with electrocardiographic changes, including an elevation of the ST-segment. A large percentage (20–56%) of myxomas are found incidentally. Case summary A 62-year-old female presenting with sudden onset CP and infero-lateral ST-elevation in the electrocardiogram. The diagnosis of ST-elevation myocardial infarction was presumed and administered tenecteplase. The patient was immediately transported to a percutaneous coronary intervention centre. She complained of intermittent diplopia during transport and referred constitutional symptoms for the past 2 weeks. Coronary angiography showed normal arteries. The echocardiogram revealed moderate to severe left ventricular systolic dysfunction due to large areas of akinesia sparing most of the basal segments, and a mobile mass inside the left atrium attached to the septum. The cardiac magnetic resonance (CMR) suggested the diagnosis of myocarditis with concomitant left atrial myxoma. The patient underwent resection of the myxoma. Neurological evaluation was performed due to mild vertigo while walking and diplopia in extreme eye movements. The head magnetic resonance imaging identified multiple infracentimetric lesions throughout the cerebral parenchyma compatible with an embolization process caused by fragments of the tumour. Discussion Myocarditis can have various presentations may mimic acute myocardial infarction and CMR is critical to establish the diagnosis. Myxoma with embolic complications requires emergent surgery. To the best of our knowledge, this is the first case reported in the applicable literature of a myxoma diagnosed during a myocarditis episode.


2020 ◽  
Vol 4 (5) ◽  
pp. 1-1
Author(s):  
Pablo Fernández de-Aspe ◽  
Guillermo Aldama-López ◽  
Cayetana Barbeito-Caamaño ◽  
Alberto Bouzas-Mosquera

2019 ◽  
Vol Volume 12 ◽  
pp. 179-183 ◽  
Author(s):  
Sasha Lalla ◽  
Jessica Kawall ◽  
Rajeev Seecheran ◽  
Divya Ramadhin ◽  
Valmiki Seecheran ◽  
...  

2015 ◽  
Vol 42 (6) ◽  
pp. 565-568 ◽  
Author(s):  
Andrés M. Pineda ◽  
Christos G. Mihos ◽  
Francisco O. Nascimento ◽  
Orlando Santana ◽  
Joseph Lamelas ◽  
...  

Systemic embolization from a primary cardiac tumor is a relatively frequent presentation. However, an acute myocardial infarction due to coronary embolization is rarely seen. We offer an unusual case of a 50-year-old man who presented with severe angina and was diagnosed with an inferolateral ST-segment-elevation myocardial infarction. Aside from otherwise healthy coronary arteries, his coronary angiogram revealed an acute occlusion of the first obtuse marginal branch, which was treated with balloon angioplasty. Because no residual plaque or dissection was found after the angioplasty, an embolic source was suspected. An echocardiogram then revealed a large mobile left atrial myxoma prolapsing into the left ventricle, so the patient underwent minimally invasive resection. Detailed pathologic examination of the myxoma revealed a concomitant high-grade B-cell lymphoma.


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