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KMID : 1144420200350020057
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Acute and Critical Care
2020 Volume.35 No. 2 p.57 ~ p.66
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Sepsis-induced cardiac dysfunction: a review of pathophysiology
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Habimana Reverien
Choi In-Su
Cho Hwa-Jin
Kim Do-Wan
Lee Kyo-Seon
Jeong In-Seok
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Abstract
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It is well known that cardiac dysfunction in sepsis is associated with significantly increased mortality. The pathophysiology of sepsis-induced cardiac dysfunction can be summarized as involving impaired myocardial circulation, direct myocardial depression, and mitochondrial dysfunction. Impaired blood flow to the myocardium is associated with microvascular dysfunction, impaired endothelium, and ventriculo-arterial uncoupling. The mechanisms behind direct myocardial depression consist of downregulation of β-adrenoceptors and several myocardial suppressants (such as cytokine and nitric oxide). Recent research has highlighted that mitochondrial dysfunction, which results in energy depletion, is a major factor in sepsis-induced cardiac dysfunction. Therefore, the authors summarize the pathophysiological process of cardiac dysfunction in sepsis based on the results of recent studies.
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KEYWORD
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heart, mitochondria, pathophysiology, sepsis
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