AMA Category 1 Credit for Physicians Only.
ASRT CME is not available.
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The HeartMate I has a pump that can generate negative pressure. When the preload falls, the HM will cause the LV to collapse as well as the left atrium. In this video, the left atrial appendage has inverted from the negative pressure.
The initial therapy is to increase the volume or, if the decreased preload is from RV dysfunction, to support the right ventricle with inotropes and/or pulmonary vasodilators or treat other causes of pulmonary hypertension (hypoxia). A last resort is to manually revert the LAA to it's normal postion.
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