Percutaneous Transluminal Coronary Angioplasty in Tortuous Coronary Arteries

Preprocedural Evaluation

• A detailed angiographic review using multiple projections with a dual injection technique is essential to fully understand the vessel's course before attempting PTCA in tortuous vessels, and consider preprocedural coronary CT angiography to visualize the tortuous segments and plan the approach, proper planning is critical for complex anatomy to minimize complications 1

Guidewire and Guiding Catheter Selection

• The American College of Cardiology recommends using a J-shaped or knuckled guidewire configuration as the primary approach for tortuous coronary arteries, as this allows advancement within the vessel architecture with minimal risk of perforation, and significantly reduces the risk of perforation in tortuous segments 1
• When vessel course is extremely tortuous and unclear, a retrograde approach may be safer 1

Procedure Techniques

• To minimize the risk of vessel dissection, use lower inflation pressures initially, consider smaller balloon sizes for predilation, and ensure adequate guide support to prevent catheter whipping, and maintain a J-shaped wire tip throughout navigation, use gentle wire advancement with frequent fluoroscopic confirmation, and avoid aggressive wire manipulation 1

Device Delivery and Stent Selection

• More flexible stent platforms are preferable in tortuous vessels, and consider shorter stent lengths to navigate severe tortuosity 1

Hemodynamic Support

• For high-risk patients with tortuous vessels, the European Society of Cardiology recommends considering prophylactic intra-aortic balloon pump placement, particularly in patients with borderline hemodynamics or ongoing ischemia, with a strength of evidence based on expert opinion 2