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4 Cards in this Set
- Front
- Back
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What is heart failure? |
inability of the heart to supply adequate blood flow low oxygen delivery to peripheral tissues and organs. leads to reduced exercise capacity, fatigue, and shortness of breath. It can also lead to organ dysfunction (e.g., renal failure) in some patients. decrease in cardiac output results from a decline in stroke volume |
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systolic dysfunction results from ? etiology? |
a loss of intrinsic inotropy (contractility), alterations in signal transduction mechanisms responsible for regulating inotropy. from the loss of viable, contracting muscle |
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Diastolic dysfunction
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ventricle becomes less compliant impairs ventricular filling courbe pression volume ( aug volume donne augmentation pression ) Both systolic and diastolic dysfunction result in a higher ventricular end-diastolic pressure, which serves as a compensatory mechanism by utilizing the Frank-Starling mechanism to augment stroke volume |
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systolic and diastolic dysfunction and ventricular end-diastolic pressure, which serves as a compensatory mechanism by utilizing the Frank-Starling mechanism to augment stroke volume
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Both systolic and diastolic dysfunction result in a higher ventricular end-diastolic pressure, which serves as a compensatory mechanism by utilizing the Frank-Starling mechanism to augment stroke volume
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