ArticleJACC. Case reports2026
Optical Pumped Magnetometer Magnetocardiography in Left Main Disease With Coronary Microvascular Dysfunction.
Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors.
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Abstract
backgroundDespite successful revascularization, a significant number of patients with obstructive coronary artery disease continue to experience angina because of often-overlooked coronary microvascular dysfunction (CMD). CASE SUMMARY: A 46-year-old man with hypertension, hyperlipidemia, and alcohol use presented with angina and left main stenosis; despite revascularization, symptoms and abnormalities on optical pumped magnetometer magnetocardiography (OPM-MCG) persisted, and AccuIMR (angiography-derived index of microcirculatory resistance) supported a diagnosis of CMD. Nicorandil led to complete symptom resolution with normalization of OPM-MCG. DISCUSSION: CMD may accelerate stenosis progression and exacerbate ischemia in coronary artery disease, and OPM-MCG provides a sensitive noninvasive tool to capture these changes. TAKE-HOME MESSAGES: This case demonstrates that CMD should be actively assessed in patients with hemodynamically significant stenosis, even after successful revascularization. OPM-MCG enables dynamic, noninvasive detection of ischemic changes, making it suitable for longitudinal follow-up and management in patients after percutaneous coronary intervention.
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