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Coronary ectasia with slow flow related to apical hypertrophic cardiomyopathy--a case report
Masao Saotome1, Hiroshi Satoh, Akihiko Uehara
1Division of Cardiology, Internal Medicine III, Hamamatsu University School of Medicine, Hamamatsu, Japan. aqua819@hama-med.ac.jp
Insights
Coronary ectasia (CE), a condition linked to increased cardiac events, was observed in a patient with mild apical hypertrophy. This case highlights a potential link between hypertrophy and severe CE, suggesting antiplatelet prophylaxis.
Area of Science:
- Cardiology
- Vascular Biology
- Medical Imaging
Background:
- Coronary ectasia (CE) is associated with elevated risks of coronary events and diverse etiologies.
- Routine health checks can reveal ECG abnormalities, prompting further investigation into underlying cardiac conditions.
Observation:
- A patient presented with ECG abnormalities, leading to coronary angiography that confirmed diffuse ectasia in all three coronary arteries.
- The patient exhibited slow contrast medium flow and focal squeezing in the left coronary artery, alongside mild apical hypertrophy and reduced coronary flow reserve.
- Exercise thallium scintigraphy revealed a transient perfusion defect in the inferior region, indicating compromised blood flow.
Findings:
- This report details the first documented instance of mild apical hypertrophy inducing severe coronary ectasia with impaired coronary flow.
- The observed findings suggest a novel association between myocardial structural abnormalities and the development of diffuse coronary ectasia.
Implications:
- The study underscores the importance of considering myocardial structural abnormalities in the etiology of coronary ectasia.
- Long-term prophylaxis with antiplatelet agents is recommended for patients diagnosed with coronary ectasia to prevent thrombotic complications.
Abstract:
Coronary ectasia (CE) has been reported to be associated with a high risk of coronary events and caused by several etiologies. The authors present a patient with CE who was noted to have an ECG abnormality in routine health check. Coronary angiography revealed diffuse ectasia in all 3 coronary arteries. The flow of contrast medium was slow and focal squeezing signs were observed in the left coronary artery. Echocardiography indicated mild apical hypertrophy and significant reduction of coronary flow reserve. Exercise thallium scintigraphy exhibited a transient perfusion defect in the inferior region. This is the first case report that a mild apical hypertrophy induced severe CE with slow coronary flow. The authors recommend a long-term prophylaxis of thrombotic complications with antiplatelet agents in patients with CE.
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