Despite recent advances in the diagnosis of myocardial ischemia, its biochemical identification in patients with acute chest pain is still a challenge, and alternative approaches for further improvement are needed. Metabolic alterations are the first consequences of acute myocardial ischemia. Metabolomics coupled with potent multivariate analyses allows for a simultaneous and relative quantification of thousands of different metabolites within a given sample. Thus, this discipline might exert a great impact on medical practice in cardiovascular medicine by providing a wealth of relevant biochemical data. Metabolomics is a promising tool to improve current, single biomarker-based approaches by identifying metabolic biosignatures that embody global biochemical changes in disease. This is especially relevant for conditions requiring early treatment like myocardial ischemia. This review discusses the potential application of metabolomics in the diagnosis of myocardial ischemia.
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http://dx.doi.org/10.1007/s12265-013-9505-9 | DOI Listing |
Circulation
January 2025
Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China (J.D., J.Z., X.X., Y.C., S.S., S.L., L.C., Y.W., L.L., R.G., D.H., X.M., R.Z., H.Y., T.C., J.T., X.L., S.J., J.H., C.F.B.Y.).
Background: Patients with acute myocardial infarction and angiographically obstructive non-culprit lesions are at high risk for recurrent major adverse cardiac events (MACEs). However, it remains largely unknown whether events are due to stenosis severity or due to the underlying high-risk lesion morphology.
Methods: Between January 2017 and December 2021, 1312 patients with acute myocardial infarction underwent optical coherence tomography of all the 3 main epicardial arteries after successful percutaneous coronary intervention.
Tex Heart Inst J
January 2025
Center for Women's Heart and Vascular Health, The Texas Heart Institute, Houston, Texas.
Myocardial bridging is a frequent anomaly of the heart in humans and other animals. A myocardial bridge is typically characterized by the systolic narrowing seen with traditional catheter angiography, but this abnormality is not by itself a sign of ischemia or the need for intervention. In particular, transient spontaneous angina must be corroborated by reproducible narrowing during acetylcholine testing; this narrowing occurs during resting conditions and is responsive to nitroglycerin administration.
View Article and Find Full Text PDFJACC Case Rep
January 2025
Cardiology Department, University Hospital Doctor Negrín, Las Palmas de Gran Canaria, Spain.
An 80-year-old woman with history of intermittent chest pain presented with a new self-limited episode. A 12-lead electrocardiogram was performed while she was asymptomatic, showing large T waves in V to V. We report a not so known electrocardiographic pattern that can be particularly valuable for identifying patients at high risk of extensive myocardial infarction and its subsequent complications.
View Article and Find Full Text PDFJACC Case Rep
January 2025
Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
The postacute myocardial infarction electrical storm is a life-threatening entity. Resistance to ischemia in Purkinje fibers may be the origin of short-coupled premature ventricular contractions that trigger severe arrhythmic events. We present a case where the use of emergency catheter ablation, guided by a 3D navigation system and an ultra-high-density mapping catheter, successfully terminated the arrhythmic storm.
View Article and Find Full Text PDFJACC Case Rep
January 2025
Icahn School of Medicine Mount Sinai, New York, New York, USA.
Takotsubo syndrome or broken-heart syndrome is a rare form of nonischemic cardiomyopathy characterized by regional systolic dysfunction of the left ventricle without evidence of coronary artery disease or acute plaque rupture. This transient impairment in myocardial contractility leads to symptoms and signs that can mimic a myocardial infarction. We present a case of Takotsubo syndrome in a 47-year-old premenopausal woman with complex congenital heart disease who initially presented with acute onset of shortness of breath and chest tightness after a verbal altercation.
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