Use of left ventricular support devices during acute coronary syndrome and percutaneous coronary intervention

Area of Science:

• Cardiology
• Interventional Cardiology
• Mechanical Circulatory Support

Background:

• Percutaneous coronary intervention (PCI) complexity is increasing due to an aging population with complex disease and impaired left ventricular (LV) function.
• High-risk PCI patients and those with acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) face significant risks of cardiovascular collapse and high mortality.
• LV support during AMI may reduce infarct size, preserving LV function.

Purpose of the Study:

• To review recent data on the use of percutaneous ventricular assist devices (PVADs) for patient support.
• To discuss PVAD application in high-risk PCI, AMI with CS, and AMI without CS.
• To highlight the unique features, strengths, weaknesses, and complications of available PVADs.

Main Methods:

• Review of recent clinical data and literature on PVADs.
• Analysis of four commercially available devices: intra-aortic balloon pump counterpulsation (IABP), Impella, TandemHeart, and extracorporeal membrane oxygenation (ECMO).
• Discussion of device mechanisms, advantages, disadvantages, and complications.

Main Results:

• PVADs aim to increase cardiac output, mean arterial pressure (MAP), and coronary perfusion while reducing pulmonary capillary wedge pressure (PCWP).
• Each device has distinct mechanisms of action, benefits, and drawbacks.
• Understanding these differences is crucial for tailoring PVAD therapy to individual patient needs.

Conclusions:

• PVADs represent a vital tool for supporting patients undergoing high-risk PCI and those with AMI, with or without CS.
• Appropriate selection and management of PVADs are essential for optimizing patient outcomes.
• Continued research and clinical experience are necessary to refine PVAD therapy.