Fracking the Code to Complete Revascularization

Area of Science:

• Interventional Cardiology
• Cardiovascular Research
• Medical Device Technology

Background:

• Heavily calcified coronary lesions pose challenges for percutaneous coronary intervention (PCI).
• Rotational atherectomy (RA) is a tool used to facilitate PCI in such complex cases.
• Understanding the outcomes and predictors of MACE associated with RA is crucial for patient management.

Purpose of the Study:

• To evaluate the utilization patterns and clinical outcomes of rotational atherectomy (RA) in patients undergoing percutaneous coronary intervention (PCI).
• To identify factors independently associated with major adverse cardiac events (MACE) following RA.
• To explore the relationship between RA use, lesion complexity, and procedural success in a real-world setting.

Main Methods:

• Retrospective analysis of RA use in three high-volume PCI centers from 2005 to 2013.
• Assessment of major adverse cardiac events (MACE) rates at a median follow-up of 22 months.
• Multivariable analysis to identify independent predictors of MACE, including peripheral vascular disease (PVD), diabetes mellitus (DM), acute coronary syndrome (ACS), and SYNTAX score.

Main Results:

• RA utilization was low at 1.4% among all PCIs performed.
• The overall MACE rate was 17.8% at 22-month follow-up.
• Independent predictors of MACE included PVD, DM, ACS, and a baseline SYNTAX score > 23.

Conclusions:

• Despite low utilization, RA is associated with significant MACE in complex calcified lesions.
• Patient comorbidities and baseline disease severity (SYNTAX score) are key determinants of adverse outcomes.
• Incomplete revascularization in high SYNTAX score patients may be a more significant driver of poor outcomes than procedural success with RA.