Why the study?
Lung tumor embolization causing acute myocardial infarction is a rare complication in cancer patients, and clinicians need to be aware that tumor embolism can lead to AMI.
Tumor embolism from lung cancer is a rare cause of acute myocardial infarction that can be effectively managed with thrombus aspiration rather than routine stenting.
May allow stent-free reperfusion in rare tumor embolus AMI; extends case reports but leaves broader applicability open.
BACKGROUND: Acute arterial embolism due to tumor embolus is a rare complication in cancer patients, even rarer is lung tumor embolization leading to acute myocardial infarction. We report a patient who had a diagnosis of acute myocardial infarction(AMI)which was brought on by a coronary artery embolism by a metastatic lung cancer tumor. Clinicians need to be aware that tumor embolism can result in AMI. CASE PRESENTATION: An 80-yeal-old male patient presented with persistent chest pain for 2 h and his electrocardiogram(ECG)showed anterior ST-segment elevation myocardial infarction. Instead of implanting a stent, thrombus aspiration was performed. Pathological examination of coronary artery thrombosis showed that a few sporadic atypical epithelial cells were scattered in the thrombus-like tissue. Combined with immune phenotype and clinical history, metastatic squamous cell carcinoma is more likely. CONCLUSIONS: We report a rare case of a patient who was diagnosed of AMI due to a coronary artery embolism by a metastatic mass from lung cancer. Since there is no evidence-based protocol available for the treatment of isolated coronary thrombosis, we used thrombus aspiration to treat thrombosis rather than implanting a stent.
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Zhao et al. (2023) studied this question.
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