The coronary arterial system consists of a continuous network of functionally distinct vessels of decreasing size. The epicardial arteries (>500 μm) have primarily a conductance function and, therefore, physiologically offer minimal resistance to flow. The microcirculation, including pre-arterioles (100 to 500 μm) and arterioles (<100 μm), on the other hand, is the main active determinant of resistance within the coronary tree, responsible for the metabolic regulation of regional blood flow to the myocardium.
The coronary microcirculation in sepsis: Not of micro-importance / Argiro A.; Olivotto I.. - In: GLOBAL CARDIOLOGY SCIENCE & PRACTICE. - ISSN 2305-7823. - ELETTRONICO. - 2020:(2020), pp. e202030-0. [10.21542/GCSP.2020.30]
The coronary microcirculation in sepsis: Not of micro-importance
Olivotto I.
2020
Abstract
The coronary arterial system consists of a continuous network of functionally distinct vessels of decreasing size. The epicardial arteries (>500 μm) have primarily a conductance function and, therefore, physiologically offer minimal resistance to flow. The microcirculation, including pre-arterioles (100 to 500 μm) and arterioles (<100 μm), on the other hand, is the main active determinant of resistance within the coronary tree, responsible for the metabolic regulation of regional blood flow to the myocardium.
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