Answer ALL parts of this question. In terms of heart failure there is a decrease in cardiac output. This is due to a contractile deficit in the individual cardiac myocytes. (a) Explain how this contractile deficit occurs. (b) What common cardiac problem is often associated with the changes in calcium handling often seen in cardiac cells of heart failure patients? Explain how this problem arises. (c) Describe the mechanism of action of levosimendan in the treatment of heart failure.

Human Physiology: From Cells to Systems (MindTap Course List)
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Chapter10: The Blood Vessels And Blood Pressure
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Answer ALL parts of this question.

In terms of heart failure there is a decrease in cardiac output. This is due to a contractile deficit in the individual cardiac myocytes.

(a) Explain how this contractile deficit occurs.

(b) What common cardiac problem is often associated with the changes in calcium handling often seen in cardiac cells of heart failure patients? Explain how this problem arises.

(c) Describe the mechanism of action of levosimendan in the treatment of heart failure. 

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