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The Heart of the Problem
From Heart Attack to Kidney Failure
Kristine A. Garner
Brandy C. Ree
This interrupted case study was developed for an undergraduate class in human cardiac physiology. The story follows a patient whose heart attack damaged a papillary muscle in the left ventricle of the heart. This caused valve dysfunction and mitral valve regurgitation resulting in left-sided heart failure, which in turn led to systemic problems including pulmonary edema and kidney failure. This case study was designed to follow a chapter or unit covering the heart and/or the cardiovascular system, and would be appropriate for any undergraduate human anatomy and physiology course or for nursing students. Before beginning the activity, students should know the anatomy of the heart, understand the function of the heart valves and blood flow through the heart, be able to calculate cardiac output, and understand the implications of blood pressure on capillary filtration. This case study was written specifically for students who have not yet covered the respiratory system or the urinary system.
|Keywords:||Heart failure; mitral valve prolapse; blood pressure; blood flow; cardiac output; capillary filtration;|
|Educational Level:||Undergraduate lower division, Clinical education|
|Subject Headings:||Physiology Nursing|
|Copyright:||Copyright held by the National Center for Case Study Teaching in Science, University at Buffalo, State University of New York. Please see our usage guidelines, which outline our policy concerning permissible reproduction of this work.|
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The supplemental material below is recommended for use with this case study.Cardiology Virtual Lab
In this virtual lab, students take on the role of an intern accompanying a doctor who is examining three different patients. Each patient is examined using more than one diagnostic tool. At each stage, the doctor invites the student to examine the patient and asks for the student's opinion.
VideosThe following video(s) are recommended for use in association with this case study.
Short animation showing the movement of blood through the heart. Runnung time: 0:33 min. Produced by HHMI BioInteractive.
How a Heart Attack Occurs
Short 3-D animation that shows how plaques form in a blood vessel, leading to blockage and a heart attack. Running time: 037 min. Produced by HHMI BioInteractive.
Heart Attack and Blocked Arteries
This short video clip makes use of a model of a heart and an artery to describe how blockages lead to heart attack and tissue damage. Running time: 3:59 min. Produced by HHMI BioInteractive.