What is the role of LV diastolic dysfunction in the etiology of cardiogenic pulmonary edema (CPE)?

Updated: Jul 23, 2020
  • Author: Ali A Sovari, MD, FACP, FACC; Chief Editor: Gyanendra K Sharma, MD, FACC, FASE  more...
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Answer

Ischemia and infarction may cause LV diastolic dysfunction in addition to systolic dysfunction. With a similar mechanism, myocardial contusion induces systolic or diastolic dysfunction.

Diastolic dysfunction signals a decrease in LV diastolic distensibility (compliance). Because of this decreased compliance, a heightened diastolic pressure is required to achieve a similar stroke volume. Despite normal LV contractility, the reduced cardiac output, in conjunction with excessive end-diastolic pressure, generates hydrostatic pulmonary edema. Diastolic abnormalities can also be caused by constrictive pericarditis and tamponade.


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