A Case of Isolated Septal Myocardial Infarction: Myocardial Perfusion-Metabolism Mismatch as a Tool for Diagnosis
Journal Title: Oman Medical Journal - Year 2019, Vol 34, Issue 3
Abstract
Isolated septal myocardial infarction is an uncommon condition with diagnostic difficulty due to small infarction size and anatomical variations. We report a case of isolated septal myocardial infarction, in which the diagnosis was confirmed not by electrocardiographic, echocardiographic, or angiographic findings, but by nuclear imaging. A 46-year-old man with chest discomfort exhibited ST-segment elevations in leads V1 and V2, and borderline abnormalities of the septal wall motion on echocardiography. Emergency coronary angiography demonstrated delayed flow in the second septal branch of the left anterior descending coronary artery. Intravascular ultrasound showed plaque in the proximal portion of the septal branch without evidence of plaque rupture. No balloon angioplasty or stent implantation was required because the flow delay in the septal branch disappeared after the intravascular ultrasound procedure. Myocardial perfusion-metabolism mismatch, as assessed by resting thallium-201 and iodine-123-beta-methyl-p-iodophenyl-pentadecanoic acid, was seen in the mid-septal region.
Authors and Affiliations
Kuniyasu Harimoto, Tatsuya Kawasaki, Sakiko Honda, Shota Kinoshita, Tadaaki Kamitani, Hiroki Sugihara
Keywords
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- EP ID EP562643
- DOI 10.5001/omj.2019.49
- Views 86
- Downloads 0
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