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Updated: Jun 17, 2026

Utilizing Percutaneous Ventricular Assist Devices in Acute Myocardial Infarction Complicated by Cardiogenic Shock
Published on: June 12, 2021
Hemodynamic support using the Impella 2.5 catheter system during high-risk percutaneous coronary intervention in a
Kishore J Harjai1, William W O'Neill
1Guthrie Health System, Sayre, Pennsylvania 18840, USA. harjai_kishore@guthrie.org
Insights
The Impella 2.5 catheter, a left ventricular assist device, was successfully used in a patient with severe aortic stenosis for high-risk percutaneous coronary intervention, challenging previous contraindications.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Devices
Background:
- The Impella 2.5 catheter is a temporary left ventricular assist device approved for circulatory support.
- Severe aortic stenosis is typically a contraindication for Impella device use.
- Patients with aortic valve area ≤ 1.5 cm² are excluded from current clinical trials.
Purpose of the Study:
- To report a case of successful Impella 2.5 catheter use in a patient with severe aortic stenosis undergoing high-risk percutaneous coronary intervention.
- To challenge the established contraindication of severe aortic stenosis for Impella device implantation.
Main Methods:
- A case report of a patient with severe aortic stenosis (valve area 0.9 cm²) and ischemic cardiomyopathy.
- Percutaneous coronary intervention was performed with Impella 2.5 catheter support.
- Device implantation and procedural success were evaluated.
Main Results:
- The Impella 2.5 catheter was successfully implanted and provided circulatory support.
- High-risk multivessel percutaneous coronary intervention was completed without immediate complications.
- The case demonstrates the feasibility of Impella support in selected patients with severe aortic stenosis.
Conclusions:
- The Impella 2.5 catheter can be safely and effectively used in patients with severe aortic stenosis and ischemic cardiomyopathy for high-risk PCI.
- This case suggests that severe aortic stenosis may not be an absolute contraindication for Impella device use.
- Further investigation is warranted to explore the expanded use of Impella devices in complex cardiac conditions.
Abstract:
The Impella 2.5 catheter is a percutaneously implanted left ventricular assist device cleared by the Food and Drug Administration to provide circulatory support for up to 6 hours. The presence of aortic stenosis is deemed to be a contraindication to its use, and ongoing clinical trials exclude patients with an aortic valve area of 1.5 cm(2) or less. We describe a case of severe aortic stenosis with an estimated valve area of 0.9 cm(2) and severe ischemic cardiomyopathy in whom the Impella catheter was successfully used for high-risk multivessel percutaneous coronary intervention.
