Contemporary evidence in protected percutaneous coronary intervention: a case-based review

Ovidio De Filippo1,2, Jürgen Leick3, Giuseppe Tarantini4

  • 1Division of Cardiology, Cardiovascular and Thoracic Department, Città della Salute e della Scienza (AOU), Corso Bramante 88/90, 10126 Turin, Italy.

Insights

Protected percutaneous coronary intervention (PCI) using microaxial flow pumps (mAFP) offers a safe strategy for high-risk patients with severe left ventricular dysfunction. This approach enables complete revascularization, improving outcomes in complex cases unsuitable for surgery.

Area of Science:

  • Interventional Cardiology
  • Cardiovascular Medicine
  • Mechanical Circulatory Support

Background:

  • High-risk percutaneous coronary intervention (PCI) in patients with severely reduced left ventricular ejection fraction (LVEF) poses a significant risk of hemodynamic collapse.
  • Current European Society of Cardiology (ESC) guidelines (Class IIb-III) support PCI for patients with severe left ventricular (LV) dysfunction, complex disease, or surgical ineligibility.

Purpose of the Study:

  • To illustrate the expanding role of protected PCI with microaxial flow pumps (mAFP) in high-risk patients meeting Class IIb-III ESC criteria.
  • To demonstrate how mAFP-assisted PCI can facilitate complete and optimized revascularization safely in patients with severe LV dysfunction and complex coronary artery disease.

Main Methods:

  • Case presentation of a 66-year-old male with severe LV dysfunction and multivessel/left main disease undergoing protected PCI.
  • Utilized microaxial flow pumps (mAFP) for percutaneous mechanical circulatory support (MCS) during PCI.
  • Employed contemporary evidence supporting mAFP to maintain forward flow and ventricular unloading.

Main Results:

  • Protected PCI with mAFP successfully maintained forward flow and ventricular unloading, minimizing hemodynamic instability.
  • The approach allowed for meticulous lesion preparation, imaging-guided optimization, and complex PCI techniques (e.g., bifurcation) while preserving perfusion.
  • The procedure was performed safely, enabling complete and optimized revascularization.

Conclusions:

  • Protected PCI using mAFP is a safe and effective option for carefully selected high-risk patients with severe LV dysfunction and complex coronary disease.
  • This strategy bridges a therapeutic gap, enabling complete revascularization and potentially promoting early functional recovery.
  • Impella-supported high-risk PCI represents a valuable tool in contemporary revascularization practice.

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