Which statement is true about minimally invasive VADs?

Which statement is true about minimally invasive VADs?

• A. They include IABP and Impella Cardiac Assist Device
• B. They include LVAD
• C. They require open-chest surgery
• D. They are only used in pediatric cases

Answer: (A)

Minimally invasive circulatory support devices are designed to augment cardiac output without opening the chest. The intra-aortic balloon pump is placed through a percutaneous access point, usually the femoral or axillary artery, and sits in the aorta. It works by inflating and deflating in rhythm with the heartbeat to improve coronary blood flow and reduce afterload, all without a open-chest procedure. The Impella is another percutaneous device—a catheter-mounted pump inserted across the aortic valve that actively moves blood from the left ventricle into the aorta, providing direct LV support through a small access route. Both of these options can be placed through relatively minimal access compared with traditional surgical devices, which is why they fit the category of minimally invasive circulatory support. In contrast, a traditional left ventricular assist device usually requires surgical implantation, often via sternotomy or thoracotomy, which is more invasive. While there are evolving techniques that can lessen invasiveness for some LVAD implants, the standard approach is not considered minimally invasive. These devices are used across adult populations and are not limited to pediatric patients. So the statement that minimally invasive VADs include IABP and Impella reflects the reality that these percutaneous, chest-sparing supports are the prototypes of minimally invasive circulatory augmentation.

Minimally invasive circulatory support devices are designed to augment cardiac output without opening the chest. The intra-aortic balloon pump is placed through a percutaneous access point, usually the femoral or axillary artery, and sits in the aorta. It works by inflating and deflating in rhythm with the heartbeat to improve coronary blood flow and reduce afterload, all without a open-chest procedure. The Impella is another percutaneous device—a catheter-mounted pump inserted across the aortic valve that actively moves blood from the left ventricle into the aorta, providing direct LV support through a small access route. Both of these options can be placed through relatively minimal access compared with traditional surgical devices, which is why they fit the category of minimally invasive circulatory support.

In contrast, a traditional left ventricular assist device usually requires surgical implantation, often via sternotomy or thoracotomy, which is more invasive. While there are evolving techniques that can lessen invasiveness for some LVAD implants, the standard approach is not considered minimally invasive. These devices are used across adult populations and are not limited to pediatric patients.

So the statement that minimally invasive VADs include IABP and Impella reflects the reality that these percutaneous, chest-sparing supports are the prototypes of minimally invasive circulatory augmentation.