Why is myocardial ischaemia so commonly subendocardial?
نویسنده
چکیده
منابع مشابه
Diagnostic performance of ultrasonic tissue characterization for subendocardial ischaemia in patients with hypertrophic cardiomyopathy.
AIMS Hypertrophic cardiomyopathy (HCM) patients often develop left--ventricular subendocardial ischaemia, a cause of chest symptoms, despite normal epicardial coronary arteries. The aim of this study was to examine whether ultrasonic tissue characterization or late gadolinium enhancement on cardiac magnetic resonance imaging can detect subendocardial ischaemia in patients with HCM. METHODS AN...
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The evidence for subendocardial ischaemia was studied in 12 patients with discrete subvalvar aortic stenosis. Symptomatology, electrocardiographic criteria, and pressure difference across the left ventricular outflow tract were compared with the subendocardial flow index (diastolic pressure time index systolic pressure time index). All symptomatic patients had a large pressure difference and ab...
متن کاملTracing ischemic memory by metabolic pathways: BMIPP and beyond
Myocardial ischemia (MI) resulting in infarction is an important cause of mortality and morbidity worldwide. Acute ischaemia rapidly impairs myocardial contractile function. Myocardial dysfunction persisting for several hours after transient non-lethal ischaemia, eventually resulting in full functional recovery is termed as myocardial stunning. Hibernation is now thought to be...
متن کاملThe effect of simplifying assumptions in the bidomain model of cardiac tissue: application to ST segment shifts during partial ischaemia.
In this study various electrical conductivity approximations used in bidomain models of cardiac tissue are considered. Comparisons are based on epicardial surface potential distributions arising from regions of subendocardial ischaemia situated within the cardiac tissue. Approximations studied are a single conductivity bidomain model, an isotropic bidomain model and equal and reciprocal anisotr...
متن کاملIs subendocardial ischaemia present in patients with chest pain and normal coronary angiograms? A cardiovascular MR study.
AIMS On the basis of an MRI study it has been suggested that subendocardial hypoperfusion is present in patients with cardiac syndrome X. However, further work is required to test whether these findings can be generalized. METHODS AND RESULTS MRI was used to visually and semi-quantitatively assess subendocardial and subepicardial perfusion, at rest and during an infusion of adenosine, in 20 p...
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ورودعنوان ژورنال:
- Clinical science
دوره 61 6 شماره
صفحات -
تاریخ انتشار 1981