Precision Percutaneous Coronary Intervention of a Complex Lesion

Area of Science:

• Cardiovascular Interventions
• Interventional Cardiology
• Medical Device Technology

Background:

• Traditional treatments like balloon dilation and atherectomy have limitations for heavily calcified coronary lesions.
• In-stent chronic total occlusions (CTOs) present unique challenges due to prior stent placement and calcification.
• Intravascular lithotripsy (IVL) offers a novel approach to modify complex calcific plaques.

Observation:

• A 75-year-old male with a 20-year-old in-stent CTO of the left anterior descending artery underwent intervention.
• Optical coherence tomography revealed severe calcification, rendering balloon dilation ineffective.
• Intravascular lithotripsy (IVL) was employed, successfully expanding the lesion and facilitating stent delivery.

Findings:

• IVL demonstrated feasibility and effectiveness in treating a heavily calcified in-stent CTO.
• The procedure resulted in successful lesion modification and stent implantation.
• A rare complication of distal coronary perforation occurred but was promptly managed with coil embolization.

Implications:

• IVL is a valuable tool for managing complex calcified coronary lesions, including in-stent CTOs.
• The technique allows for effective calcium modification while minimizing vessel trauma.
• Timely recognition and management of complications are crucial for successful outcomes in complex PCI.